From a95d16b79240f4f5252d53215fcdb116bcc5ce34 Mon Sep 17 00:00:00 2001
From: cferdinandi <chris@gomakethings.com>
Date: Wed, 7 Feb 2018 11:18:46 -0500
Subject: [PATCH 01/51] Updated docs

---
 README.md               | 16 +++++++++++++---
 npm-debug.log.558243421 |  0
 src/js/smooth-scroll.js |  1 -
 3 files changed, 13 insertions(+), 4 deletions(-)
 create mode 100644 npm-debug.log.558243421

diff --git a/README.md b/README.md
index 85676c5..61f8f46 100755
--- a/README.md
+++ b/README.md
@@ -100,11 +100,21 @@ var scroll = new SmoothScroll('a[href*="#"]', {
 	speed: 500, // Integer. How fast to complete the scroll in milliseconds
 	offset: 0, // Integer or Function returning an integer. How far to offset the scrolling anchor location in pixels
 	easing: 'easeInOutCubic', // Easing pattern to use
-	customEasing: function (time) {}, // Function. Custom easing pattern
+	customEasing: function (time) {
+
+		// Function. Custom easing pattern
+		// If this is set to anything other than null, will override the easing option above
+
+		// return <your formulate with time as a multiplier>
+
+		// Example: easeInOut Quad
+		return time < 0.5 ? 2 * time * time : -1 + (4 - 2 * time) * time;
+
+	},
 
 	// Callback API
-	before: function () {}, // Callback to run before scroll
-	after: function () {} // Callback to run after scroll
+	before: function (anchor, toggle) {}, // Callback to run before scroll
+	after: function (anchor, toggle) {} // Callback to run after scroll
 });
 ```
 
diff --git a/npm-debug.log.558243421 b/npm-debug.log.558243421
new file mode 100644
index 0000000..e69de29
diff --git a/src/js/smooth-scroll.js b/src/js/smooth-scroll.js
index 966e9c7..7e83b2c 100755
--- a/src/js/smooth-scroll.js
+++ b/src/js/smooth-scroll.js
@@ -57,7 +57,6 @@
 
 		// Variables
 		var extended = {};
-		var deep = false;
 		var i = 0;
 		var length = arguments.length;
 

From 37f579b05f6173bba300777867f6b8b613339662 Mon Sep 17 00:00:00 2001
From: cferdinandi <chris@gomakethings.com>
Date: Thu, 17 May 2018 17:39:48 -0400
Subject: [PATCH 02/51] v14.0.0: WIP - Make `#top` work:
 https://github.com/cferdinandi/smooth-scroll/issues/394 - Add option to
 disable scrolling to the top on empty hash:
 https://github.com/cferdinandi/smooth-scroll/issues/396 - Fix random missing
 IDs bug: https://github.com/cferdinandi/smooth-scroll/issues/411 - Fix random
 jump-to-top bug: https://github.com/cferdinandi/smooth-scroll/issues/413

---
 dist/js/smooth-scroll.js                    | 185 +++++++++++---------
 dist/js/smooth-scroll.min.js                |   4 +-
 dist/js/smooth-scroll.polyfills.js          | 185 +++++++++++---------
 dist/js/smooth-scroll.polyfills.min.js      |   4 +-
 docs/dist/js/smooth-scroll.js               | 185 +++++++++++---------
 docs/dist/js/smooth-scroll.min.js           |   4 +-
 docs/dist/js/smooth-scroll.polyfills.js     | 185 +++++++++++---------
 docs/dist/js/smooth-scroll.polyfills.min.js |   4 +-
 docs/index.html                             |  33 ++--
 npm-debug.log.558243421                     |   0
 package.json                                |   2 +-
 src/docs/_templates/_footer.html            |  31 ++--
 src/docs/index.md                           |   2 +-
 src/js/smooth-scroll.js                     | 180 ++++++++++---------
 14 files changed, 563 insertions(+), 441 deletions(-)
 delete mode 100644 npm-debug.log.558243421

diff --git a/dist/js/smooth-scroll.js b/dist/js/smooth-scroll.js
index dec5cb4..7e0602e 100755
--- a/dist/js/smooth-scroll.js
+++ b/dist/js/smooth-scroll.js
@@ -1,16 +1,16 @@
 /*!
- * smooth-scroll v12.1.5: Animate scrolling to anchor links
- * (c) 2017 Chris Ferdinandi
+ * smooth-scroll v14.0.0: Animate scrolling to anchor links
+ * (c) 2018 Chris Ferdinandi
  * MIT License
  * http://github.com/cferdinandi/smooth-scroll
  */
 
 (function (root, factory) {
-	if ( typeof define === 'function' && define.amd ) {
+	if (typeof define === 'function' && define.amd) {
 		define([], (function () {
 			return factory(root);
 		}));
-	} else if ( typeof exports === 'object' ) {
+	} else if (typeof exports === 'object') {
 		module.exports = factory(root);
 	} else {
 		root.SmoothScroll = factory(root);
@@ -38,6 +38,7 @@
 		// Selectors
 		ignore: '[data-scroll-ignore]',
 		header: null,
+		topOnEmptyHash: true,
 
 		// Speed & Easing
 		speed: 500,
@@ -45,6 +46,10 @@
 		easing: 'easeInOutCubic',
 		customEasing: null,
 
+		// History
+		updateURL: true,
+		popstate: true,
+
 		// Callback API
 		before: function () {},
 		after: function () {}
@@ -64,9 +69,6 @@
 
 		// Variables
 		var extended = {};
-		var deep = false;
-		var i = 0;
-		var length = arguments.length;
 
 		// Merge the object into the extended object
 		var merge = function (obj) {
@@ -78,15 +80,25 @@
 		};
 
 		// Loop through each object and conduct a merge
-		for ( ; i < length; i++ ) {
-			var obj = arguments[i];
-			merge(obj);
+		for (var i = 0; i < arguments.length; i++) {
+			merge(arguments[i]);
 		}
 
 		return extended;
 
 	};
 
+	/**
+	 * Check to see if user prefers reduced motion
+	 * @param  {Object} settings Script settings
+	 */
+	var reduceMotion = function (settings) {
+		if ('matchMedia' in window && window.matchMedia('(prefers-reduced-motion)').matches) {
+			return true;
+		}
+		return false;
+	};
+
 	/**
 	 * Get the height of an element.
 	 * @param  {Node} elem The element to get the height of
@@ -96,11 +108,26 @@
 		return parseInt(window.getComputedStyle(elem).height, 10);
 	};
 
+	/**
+	 * Decode a URI, with error check
+	 * @param  {String} hash The URI to decode
+	 * @return {String}      A decoded URI (or the original string if an error is thrown)
+	 */
+	var decode = function (hash) {
+		var decoded;
+		try {
+			decoded = decodeURIComponent(hash);
+		} catch(e) {
+			decoded = hash;
+		}
+		return decoded;
+	};
+
 	/**
 	 * Escape special characters for use with querySelector
-	 * @param {String} id The anchor ID to escape
 	 * @author Mathias Bynens
 	 * @link https://github.com/mathiasbynens/CSS.escape
+	 * @param {String} id The anchor ID to escape
 	 */
 	var escapeCharacters = function (id) {
 
@@ -171,7 +198,14 @@
 
 		}
 
-		return '#' + result;
+		// Return sanitized hash
+		var hash;
+		try {
+			hash = decodeURIComponent('#' + result);
+		} catch(e) {
+			hash = '#' + result;
+		}
+		return hash;
 
 	};
 
@@ -267,15 +301,21 @@
 
 	};
 
-	/**
-	 * Check to see if user prefers reduced motion
-	 * @param  {Object} settings Script settings
-	 */
-	var reduceMotion = function (settings) {
-		if ('matchMedia' in window && window.matchMedia('(prefers-reduced-motion)').matches) {
-			return true;
-		}
-		return false;
+	var updateURL = function (anchor, options) {
+
+		// Verify that pushState is supported and the updateURL option is enabled
+		if (!history.pushState || !options.updateURL) return;
+
+		// Update URL
+		history.pushState(
+			{
+				smoothScroll: JSON.stringify(options),
+				anchor: anchor.id
+			},
+			document.title,
+			anchor === 0 ? '#top' : '#' + anchor.id
+		);
+
 	};
 
 
@@ -301,8 +341,8 @@
 		 * Cancel a scroll-in-progress
 		 */
 		smoothScroll.cancelScroll = function () {
-			// clearInterval(animationInterval);
 			cancelAnimationFrame(animationInterval);
+			animationInterval = null;
 		};
 
 		/**
@@ -323,7 +363,7 @@
 			var startLocation = window.pageYOffset; // Current location on the page
 			if (animateSettings.header && !fixedHeader) {
 				// Get the fixed header if not already set
-				fixedHeader = document.querySelector( animateSettings.header );
+				fixedHeader = document.querySelector(animateSettings.header);
 			}
 			if (!headerHeight) {
 				// Get the height of a fixed header if one exists and not already set
@@ -347,7 +387,7 @@
 				var currentLocation = window.pageYOffset;
 
 				// Check if the end location has been reached yet (or we've hit the end of the document)
-				if ( position == endLocation || currentLocation == endLocation || ((startLocation < endLocation && window.innerHeight + currentLocation) >= documentHeight )) {
+				if (position == endLocation || currentLocation == endLocation || ((startLocation < endLocation && window.innerHeight + currentLocation) >= documentHeight)) {
 
 					// Clear the animation timer
 					smoothScroll.cancelScroll();
@@ -360,6 +400,7 @@
 
 					// Reset start
 					start = null;
+					animationInterval = null;
 
 					return true;
 
@@ -377,7 +418,7 @@
 				position = startLocation + (distance * easingPattern(animateSettings, percentage));
 				window.scrollTo(0, Math.floor(position));
 				if (!stopAnimateScroll(position, endLocation)) {
-					window.requestAnimationFrame(loopAnimateScroll);
+					animationInterval = window.requestAnimationFrame(loopAnimateScroll);
 					start = timestamp;
 				}
 			};
@@ -387,37 +428,19 @@
 			 * @link https://github.com/cferdinandi/smooth-scroll/issues/45
 			 */
 			if (window.pageYOffset === 0) {
-				window.scrollTo( 0, 0 );
+				window.scrollTo(0, 0);
 			}
 
 			// Run callback before animation starts
 			animateSettings.before(anchor, toggle);
 
+			// Update the URL
+			updateURL(anchor, animateSettings);
+
 			// Start scrolling animation
 			smoothScroll.cancelScroll();
 			window.requestAnimationFrame(loopAnimateScroll);
 
-
-		};
-
-		/**
-		 * Handle has change event
-		 */
-		var hashChangeHandler = function (event) {
-
-			// Only run if there's an anchor element to scroll to
-			if (!anchor) return;
-
-			// Reset the anchor element's ID
-			anchor.id = anchor.getAttribute('data-scroll-id');
-
-			// Scroll to the anchored content
-			smoothScroll.animateScroll(anchor, toggle);
-
-			// Reset anchor and toggle
-			anchor = null;
-			toggle = null;
-
 		};
 
 		/**
@@ -438,35 +461,17 @@
 			// Only run if link is an anchor and points to the current page
 			if (toggle.hostname !== window.location.hostname || toggle.pathname !== window.location.pathname || !/#/.test(toggle.href)) return;
 
-			// Get the sanitized hash
-			var hash;
-			try {
-				hash = escapeCharacters(decodeURIComponent(toggle.hash));
-			} catch(e) {
-				hash = escapeCharacters(toggle.hash);
-			}
+			// Get an escaped version of the hash
+			var hash = escapeCharacters(decode(toggle.hash));
 
 			// If the hash is empty, scroll to the top of the page
-			if (hash === '#') {
+			if (settings.topOnEmptyHash && ['#', '#top'].indexOf(hash) !== -1) {
 
 				// Prevent default link behavior
 				event.preventDefault();
 
-				// Set the anchored element
-				anchor = document.body;
-
-				// Save or create the ID as a data attribute and remove it (prevents scroll jump)
-				var id = anchor.id ? anchor.id : 'smooth-scroll-top';
-				anchor.setAttribute('data-scroll-id', id);
-				anchor.id = '';
-
-				// If no hash change event will happen, fire manually
-				// Otherwise, update the hash
-				if (window.location.hash.substring(1) === id) {
-					hashChangeHandler();
-				} else {
-					window.location.hash = id;
-				}
+				// Scroll to the top of the page
+				smoothScroll.animateScroll(0, toggle);
 
 				return;
 
@@ -475,16 +480,30 @@
 			// Get the anchored element
 			anchor = document.querySelector(hash);
 
-			// If anchored element exists, save the ID as a data attribute and remove it (prevents scroll jump)
+			// If anchored element exists, scroll to it
 			if (!anchor) return;
-			anchor.setAttribute('data-scroll-id', anchor.id);
-			anchor.id = '';
+			event.preventDefault();
+			smoothScroll.animateScroll(anchor, toggle);
 
-			// If no hash change event will happen, fire manually
-			if (toggle.hash === window.location.hash) {
-				event.preventDefault();
-				hashChangeHandler();
-			}
+		};
+
+		/**
+		 * Animate scroll on popstate events
+		 */
+		var popstateHandler = function (event) {
+
+			// Only run if state is a popstate record for this instantiation
+			if (!history.state.smoothScroll || history.state.smoothScroll !== JSON.stringify(settings)) return;
+
+			// Only run if state includes an anchor
+			if (!history.state.anchor) return;
+
+			// Get the anchor
+			var anchor = document.querySelector(escapeCharacters(decode(history.state.anchor)));
+			if (!anchor) return;
+
+			// Animate scroll to anchor link
+			smoothScroll.animateScroll(anchor, null, {updateURL: false});
 
 		};
 
@@ -511,6 +530,7 @@
 			// Remove event listeners
 			document.removeEventListener('click', clickHandler, false);
 			window.removeEventListener('resize', resizeThrottler, false);
+			window.removeEventListener('popstate', popstateHandler, false);
 
 			// Cancel any scrolls-in-progress
 			smoothScroll.cancelScroll();
@@ -523,6 +543,7 @@
 			headerHeight = null;
 			eventTimeout = null;
 			animationInterval = null;
+
 		};
 
 		/**
@@ -545,14 +566,16 @@
 			// When a toggle is clicked, run the click handler
 			document.addEventListener('click', clickHandler, false);
 
-			// Listen for hash changes
-			window.addEventListener('hashchange', hashChangeHandler, false);
-
 			// If window is resized and there's a fixed header, recalculate its size
 			if (fixedHeader) {
 				window.addEventListener('resize', resizeThrottler, false);
 			}
 
+			// If updateURL and popState are enabled, listen for pop events
+			if (settings.updateURL && settings.popstate) {
+				window.addEventListener('popstate', popstateHandler, false);
+			}
+
 		};
 
 
diff --git a/dist/js/smooth-scroll.min.js b/dist/js/smooth-scroll.min.js
index 0cd1cf2..2f6e242 100755
--- a/dist/js/smooth-scroll.min.js
+++ b/dist/js/smooth-scroll.min.js
@@ -1,2 +1,2 @@
-/*! smooth-scroll v12.1.5 | (c) 2017 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
-!(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t="querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype,n={ignore:"[data-scroll-ignore]",header:null,speed:500,offset:0,easing:"easeInOutCubic",customEasing:null,before:function(){},after:function(){}},o=function(){for(var e={},t=0,n=arguments.length;t<n;t++){var o=arguments[t];!(function(t){for(var n in t)t.hasOwnProperty(n)&&(e[n]=t[n])})(o)}return e},a=function(t){return parseInt(e.getComputedStyle(t).height,10)},r=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,a=-1,r="",i=n.charCodeAt(0);++a<o;){if(0===(t=n.charCodeAt(a)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===a&&t>=48&&t<=57||1===a&&t>=48&&t<=57&&45===i?r+="\\"+t.toString(16)+" ":r+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(a):"\\"+n.charAt(a)}return"#"+r},i=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},u=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},c=function(e,t,n){var o=0;if(e.offsetParent)do{o+=e.offsetTop,e=e.offsetParent}while(e);return o=Math.max(o-t-n,0)},s=function(e){return e?a(e)+e.offsetTop:0},l=function(t,n,o){o||(t.focus(),document.activeElement.id!==t.id&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},f=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)};return function(a,d){var m,h,g,p,v,b,y,S={};S.cancelScroll=function(){cancelAnimationFrame(y)},S.animateScroll=function(t,a,r){var f=o(m||n,r||{}),d="[object Number]"===Object.prototype.toString.call(t),h=d||!t.tagName?null:t;if(d||h){var g=e.pageYOffset;f.header&&!p&&(p=document.querySelector(f.header)),v||(v=s(p));var b,y,E,I=d?t:c(h,v,parseInt("function"==typeof f.offset?f.offset():f.offset,10)),O=I-g,A=u(),C=0,w=function(n,o){var r=e.pageYOffset;if(n==o||r==o||(g<o&&e.innerHeight+r)>=A)return S.cancelScroll(),l(t,o,d),f.after(t,a),b=null,!0},Q=function(t){b||(b=t),C+=t-b,y=C/parseInt(f.speed,10),y=y>1?1:y,E=g+O*i(f,y),e.scrollTo(0,Math.floor(E)),w(E,I)||(e.requestAnimationFrame(Q),b=t)};0===e.pageYOffset&&e.scrollTo(0,0),f.before(t,a),S.cancelScroll(),e.requestAnimationFrame(Q)}};var E=function(e){h&&(h.id=h.getAttribute("data-scroll-id"),S.animateScroll(h,g),h=null,g=null)},I=function(t){if(!f()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&(g=t.target.closest(a))&&"a"===g.tagName.toLowerCase()&&!t.target.closest(m.ignore)&&g.hostname===e.location.hostname&&g.pathname===e.location.pathname&&/#/.test(g.href)){var n;try{n=r(decodeURIComponent(g.hash))}catch(e){n=r(g.hash)}if("#"===n){t.preventDefault(),h=document.body;var o=h.id?h.id:"smooth-scroll-top";return h.setAttribute("data-scroll-id",o),h.id="",void(e.location.hash.substring(1)===o?E():e.location.hash=o)}h=document.querySelector(n),h&&(h.setAttribute("data-scroll-id",h.id),h.id="",g.hash===e.location.hash&&(t.preventDefault(),E()))}},O=function(e){b||(b=setTimeout((function(){b=null,v=s(p)}),66))};return S.destroy=function(){m&&(document.removeEventListener("click",I,!1),e.removeEventListener("resize",O,!1),S.cancelScroll(),m=null,h=null,g=null,p=null,v=null,b=null,y=null)},S.init=function(a){t&&(S.destroy(),m=o(n,a||{}),p=m.header?document.querySelector(m.header):null,v=s(p),document.addEventListener("click",I,!1),e.addEventListener("hashchange",E,!1),p&&e.addEventListener("resize",O,!1))},S.init(d),S}}));
\ No newline at end of file
+/*! smooth-scroll v14.0.0 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
+!(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t="querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype,n={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,before:function(){},after:function(){}},o=function(){for(var e={},t=0;t<arguments.length;t++)!(function(t){for(var n in t)t.hasOwnProperty(n)&&(e[n]=t[n])})(arguments[t]);return e},r=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)},a=function(t){return parseInt(e.getComputedStyle(t).height,10)},i=function(e){var t;try{t=decodeURIComponent(e)}catch(n){t=e}return t},u=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,r=-1,a="",i=n.charCodeAt(0);++r<o;){if(0===(t=n.charCodeAt(r)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===r&&t>=48&&t<=57||1===r&&t>=48&&t<=57&&45===i?a+="\\"+t.toString(16)+" ":a+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(r):"\\"+n.charAt(r)}var u;try{u=decodeURIComponent("#"+a)}catch(e){u="#"+a}return u},c=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(e,t,n){var o=0;if(e.offsetParent)do{o+=e.offsetTop,e=e.offsetParent}while(e);return o=Math.max(o-t-n,0)},f=function(e){return e?a(e)+e.offsetTop:0},d=function(t,n,o){o||(t.focus(),document.activeElement.id!==t.id&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},m=function(e,t){history.pushState&&t.updateURL&&history.pushState({smoothScroll:JSON.stringify(t),anchor:e.id},document.title,0===e?"#top":"#"+e.id)};return function(a,h){var p,g,y,v,S,b,O,E={};E.cancelScroll=function(){cancelAnimationFrame(O),O=null},E.animateScroll=function(t,r,a){var i=o(p||n,a||{}),u="[object Number]"===Object.prototype.toString.call(t),h=u||!t.tagName?null:t;if(u||h){var g=e.pageYOffset;i.header&&!v&&(v=document.querySelector(i.header)),S||(S=f(v));var y,b,I,L=u?t:l(h,S,parseInt("function"==typeof i.offset?i.offset():i.offset,10)),C=L-g,A=s(),w=0,H=function(n,o){var a=e.pageYOffset;if(n==o||a==o||(g<o&&e.innerHeight+a)>=A)return E.cancelScroll(),d(t,o,u),i.after(t,r),y=null,O=null,!0},Q=function(t){y||(y=t),w+=t-y,b=w/parseInt(i.speed,10),b=b>1?1:b,I=g+C*c(i,b),e.scrollTo(0,Math.floor(I)),H(I,L)||(O=e.requestAnimationFrame(Q),y=t)};0===e.pageYOffset&&e.scrollTo(0,0),i.before(t,r),m(t,i),E.cancelScroll(),e.requestAnimationFrame(Q)}};var I=function(t){if(!r()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&(y=t.target.closest(a))&&"a"===y.tagName.toLowerCase()&&!t.target.closest(p.ignore)&&y.hostname===e.location.hostname&&y.pathname===e.location.pathname&&/#/.test(y.href)){var n=u(i(y.hash));if(p.topOnEmptyHash&&-1!==["#","#top"].indexOf(n))return t.preventDefault(),void E.animateScroll(0,y);g=document.querySelector(n),g&&(t.preventDefault(),E.animateScroll(g,y))}},L=function(e){if(history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(p)&&history.state.anchor){var t=document.querySelector(u(i(history.state.anchor)));t&&E.animateScroll(t,null,{updateURL:!1})}},C=function(e){b||(b=setTimeout((function(){b=null,S=f(v)}),66))};return E.destroy=function(){p&&(document.removeEventListener("click",I,!1),e.removeEventListener("resize",C,!1),e.removeEventListener("popstate",L,!1),E.cancelScroll(),p=null,g=null,y=null,v=null,S=null,b=null,O=null)},E.init=function(r){t&&(E.destroy(),p=o(n,r||{}),v=p.header?document.querySelector(p.header):null,S=f(v),document.addEventListener("click",I,!1),v&&e.addEventListener("resize",C,!1),p.updateURL&&p.popstate&&e.addEventListener("popstate",L,!1))},E.init(h),E}}));
\ No newline at end of file
diff --git a/dist/js/smooth-scroll.polyfills.js b/dist/js/smooth-scroll.polyfills.js
index 43c14be..ffcb742 100755
--- a/dist/js/smooth-scroll.polyfills.js
+++ b/dist/js/smooth-scroll.polyfills.js
@@ -1,6 +1,6 @@
 /*!
- * smooth-scroll v12.1.5: Animate scrolling to anchor links
- * (c) 2017 Chris Ferdinandi
+ * smooth-scroll v14.0.0: Animate scrolling to anchor links
+ * (c) 2018 Chris Ferdinandi
  * MIT License
  * http://github.com/cferdinandi/smooth-scroll
  */
@@ -57,11 +57,11 @@ if (window.Element && !Element.prototype.closest) {
 }());
 
 (function (root, factory) {
-	if ( typeof define === 'function' && define.amd ) {
+	if (typeof define === 'function' && define.amd) {
 		define([], (function () {
 			return factory(root);
 		}));
-	} else if ( typeof exports === 'object' ) {
+	} else if (typeof exports === 'object') {
 		module.exports = factory(root);
 	} else {
 		root.SmoothScroll = factory(root);
@@ -89,6 +89,7 @@ if (window.Element && !Element.prototype.closest) {
 		// Selectors
 		ignore: '[data-scroll-ignore]',
 		header: null,
+		topOnEmptyHash: true,
 
 		// Speed & Easing
 		speed: 500,
@@ -96,6 +97,10 @@ if (window.Element && !Element.prototype.closest) {
 		easing: 'easeInOutCubic',
 		customEasing: null,
 
+		// History
+		updateURL: true,
+		popstate: true,
+
 		// Callback API
 		before: function () {},
 		after: function () {}
@@ -115,9 +120,6 @@ if (window.Element && !Element.prototype.closest) {
 
 		// Variables
 		var extended = {};
-		var deep = false;
-		var i = 0;
-		var length = arguments.length;
 
 		// Merge the object into the extended object
 		var merge = function (obj) {
@@ -129,15 +131,25 @@ if (window.Element && !Element.prototype.closest) {
 		};
 
 		// Loop through each object and conduct a merge
-		for ( ; i < length; i++ ) {
-			var obj = arguments[i];
-			merge(obj);
+		for (var i = 0; i < arguments.length; i++) {
+			merge(arguments[i]);
 		}
 
 		return extended;
 
 	};
 
+	/**
+	 * Check to see if user prefers reduced motion
+	 * @param  {Object} settings Script settings
+	 */
+	var reduceMotion = function (settings) {
+		if ('matchMedia' in window && window.matchMedia('(prefers-reduced-motion)').matches) {
+			return true;
+		}
+		return false;
+	};
+
 	/**
 	 * Get the height of an element.
 	 * @param  {Node} elem The element to get the height of
@@ -147,11 +159,26 @@ if (window.Element && !Element.prototype.closest) {
 		return parseInt(window.getComputedStyle(elem).height, 10);
 	};
 
+	/**
+	 * Decode a URI, with error check
+	 * @param  {String} hash The URI to decode
+	 * @return {String}      A decoded URI (or the original string if an error is thrown)
+	 */
+	var decode = function (hash) {
+		var decoded;
+		try {
+			decoded = decodeURIComponent(hash);
+		} catch(e) {
+			decoded = hash;
+		}
+		return decoded;
+	};
+
 	/**
 	 * Escape special characters for use with querySelector
-	 * @param {String} id The anchor ID to escape
 	 * @author Mathias Bynens
 	 * @link https://github.com/mathiasbynens/CSS.escape
+	 * @param {String} id The anchor ID to escape
 	 */
 	var escapeCharacters = function (id) {
 
@@ -222,7 +249,14 @@ if (window.Element && !Element.prototype.closest) {
 
 		}
 
-		return '#' + result;
+		// Return sanitized hash
+		var hash;
+		try {
+			hash = decodeURIComponent('#' + result);
+		} catch(e) {
+			hash = '#' + result;
+		}
+		return hash;
 
 	};
 
@@ -318,15 +352,21 @@ if (window.Element && !Element.prototype.closest) {
 
 	};
 
-	/**
-	 * Check to see if user prefers reduced motion
-	 * @param  {Object} settings Script settings
-	 */
-	var reduceMotion = function (settings) {
-		if ('matchMedia' in window && window.matchMedia('(prefers-reduced-motion)').matches) {
-			return true;
-		}
-		return false;
+	var updateURL = function (anchor, options) {
+
+		// Verify that pushState is supported and the updateURL option is enabled
+		if (!history.pushState || !options.updateURL) return;
+
+		// Update URL
+		history.pushState(
+			{
+				smoothScroll: JSON.stringify(options),
+				anchor: anchor.id
+			},
+			document.title,
+			anchor === 0 ? '#top' : '#' + anchor.id
+		);
+
 	};
 
 
@@ -352,8 +392,8 @@ if (window.Element && !Element.prototype.closest) {
 		 * Cancel a scroll-in-progress
 		 */
 		smoothScroll.cancelScroll = function () {
-			// clearInterval(animationInterval);
 			cancelAnimationFrame(animationInterval);
+			animationInterval = null;
 		};
 
 		/**
@@ -374,7 +414,7 @@ if (window.Element && !Element.prototype.closest) {
 			var startLocation = window.pageYOffset; // Current location on the page
 			if (animateSettings.header && !fixedHeader) {
 				// Get the fixed header if not already set
-				fixedHeader = document.querySelector( animateSettings.header );
+				fixedHeader = document.querySelector(animateSettings.header);
 			}
 			if (!headerHeight) {
 				// Get the height of a fixed header if one exists and not already set
@@ -398,7 +438,7 @@ if (window.Element && !Element.prototype.closest) {
 				var currentLocation = window.pageYOffset;
 
 				// Check if the end location has been reached yet (or we've hit the end of the document)
-				if ( position == endLocation || currentLocation == endLocation || ((startLocation < endLocation && window.innerHeight + currentLocation) >= documentHeight )) {
+				if (position == endLocation || currentLocation == endLocation || ((startLocation < endLocation && window.innerHeight + currentLocation) >= documentHeight)) {
 
 					// Clear the animation timer
 					smoothScroll.cancelScroll();
@@ -411,6 +451,7 @@ if (window.Element && !Element.prototype.closest) {
 
 					// Reset start
 					start = null;
+					animationInterval = null;
 
 					return true;
 
@@ -428,7 +469,7 @@ if (window.Element && !Element.prototype.closest) {
 				position = startLocation + (distance * easingPattern(animateSettings, percentage));
 				window.scrollTo(0, Math.floor(position));
 				if (!stopAnimateScroll(position, endLocation)) {
-					window.requestAnimationFrame(loopAnimateScroll);
+					animationInterval = window.requestAnimationFrame(loopAnimateScroll);
 					start = timestamp;
 				}
 			};
@@ -438,37 +479,19 @@ if (window.Element && !Element.prototype.closest) {
 			 * @link https://github.com/cferdinandi/smooth-scroll/issues/45
 			 */
 			if (window.pageYOffset === 0) {
-				window.scrollTo( 0, 0 );
+				window.scrollTo(0, 0);
 			}
 
 			// Run callback before animation starts
 			animateSettings.before(anchor, toggle);
 
+			// Update the URL
+			updateURL(anchor, animateSettings);
+
 			// Start scrolling animation
 			smoothScroll.cancelScroll();
 			window.requestAnimationFrame(loopAnimateScroll);
 
-
-		};
-
-		/**
-		 * Handle has change event
-		 */
-		var hashChangeHandler = function (event) {
-
-			// Only run if there's an anchor element to scroll to
-			if (!anchor) return;
-
-			// Reset the anchor element's ID
-			anchor.id = anchor.getAttribute('data-scroll-id');
-
-			// Scroll to the anchored content
-			smoothScroll.animateScroll(anchor, toggle);
-
-			// Reset anchor and toggle
-			anchor = null;
-			toggle = null;
-
 		};
 
 		/**
@@ -489,35 +512,17 @@ if (window.Element && !Element.prototype.closest) {
 			// Only run if link is an anchor and points to the current page
 			if (toggle.hostname !== window.location.hostname || toggle.pathname !== window.location.pathname || !/#/.test(toggle.href)) return;
 
-			// Get the sanitized hash
-			var hash;
-			try {
-				hash = escapeCharacters(decodeURIComponent(toggle.hash));
-			} catch(e) {
-				hash = escapeCharacters(toggle.hash);
-			}
+			// Get an escaped version of the hash
+			var hash = escapeCharacters(decode(toggle.hash));
 
 			// If the hash is empty, scroll to the top of the page
-			if (hash === '#') {
+			if (settings.topOnEmptyHash && ['#', '#top'].indexOf(hash) !== -1) {
 
 				// Prevent default link behavior
 				event.preventDefault();
 
-				// Set the anchored element
-				anchor = document.body;
-
-				// Save or create the ID as a data attribute and remove it (prevents scroll jump)
-				var id = anchor.id ? anchor.id : 'smooth-scroll-top';
-				anchor.setAttribute('data-scroll-id', id);
-				anchor.id = '';
-
-				// If no hash change event will happen, fire manually
-				// Otherwise, update the hash
-				if (window.location.hash.substring(1) === id) {
-					hashChangeHandler();
-				} else {
-					window.location.hash = id;
-				}
+				// Scroll to the top of the page
+				smoothScroll.animateScroll(0, toggle);
 
 				return;
 
@@ -526,16 +531,30 @@ if (window.Element && !Element.prototype.closest) {
 			// Get the anchored element
 			anchor = document.querySelector(hash);
 
-			// If anchored element exists, save the ID as a data attribute and remove it (prevents scroll jump)
+			// If anchored element exists, scroll to it
 			if (!anchor) return;
-			anchor.setAttribute('data-scroll-id', anchor.id);
-			anchor.id = '';
+			event.preventDefault();
+			smoothScroll.animateScroll(anchor, toggle);
 
-			// If no hash change event will happen, fire manually
-			if (toggle.hash === window.location.hash) {
-				event.preventDefault();
-				hashChangeHandler();
-			}
+		};
+
+		/**
+		 * Animate scroll on popstate events
+		 */
+		var popstateHandler = function (event) {
+
+			// Only run if state is a popstate record for this instantiation
+			if (!history.state.smoothScroll || history.state.smoothScroll !== JSON.stringify(settings)) return;
+
+			// Only run if state includes an anchor
+			if (!history.state.anchor) return;
+
+			// Get the anchor
+			var anchor = document.querySelector(escapeCharacters(decode(history.state.anchor)));
+			if (!anchor) return;
+
+			// Animate scroll to anchor link
+			smoothScroll.animateScroll(anchor, null, {updateURL: false});
 
 		};
 
@@ -562,6 +581,7 @@ if (window.Element && !Element.prototype.closest) {
 			// Remove event listeners
 			document.removeEventListener('click', clickHandler, false);
 			window.removeEventListener('resize', resizeThrottler, false);
+			window.removeEventListener('popstate', popstateHandler, false);
 
 			// Cancel any scrolls-in-progress
 			smoothScroll.cancelScroll();
@@ -574,6 +594,7 @@ if (window.Element && !Element.prototype.closest) {
 			headerHeight = null;
 			eventTimeout = null;
 			animationInterval = null;
+
 		};
 
 		/**
@@ -596,14 +617,16 @@ if (window.Element && !Element.prototype.closest) {
 			// When a toggle is clicked, run the click handler
 			document.addEventListener('click', clickHandler, false);
 
-			// Listen for hash changes
-			window.addEventListener('hashchange', hashChangeHandler, false);
-
 			// If window is resized and there's a fixed header, recalculate its size
 			if (fixedHeader) {
 				window.addEventListener('resize', resizeThrottler, false);
 			}
 
+			// If updateURL and popState are enabled, listen for pop events
+			if (settings.updateURL && settings.popstate) {
+				window.addEventListener('popstate', popstateHandler, false);
+			}
+
 		};
 
 
diff --git a/dist/js/smooth-scroll.polyfills.min.js b/dist/js/smooth-scroll.polyfills.min.js
index d7677aa..575668e 100755
--- a/dist/js/smooth-scroll.polyfills.min.js
+++ b/dist/js/smooth-scroll.polyfills.min.js
@@ -1,2 +1,2 @@
-/*! smooth-scroll v12.1.5 | (c) 2017 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
-window.Element&&!Element.prototype.closest&&(Element.prototype.closest=function(e){var t,n=(this.document||this.ownerDocument).querySelectorAll(e),o=this;do{for(t=n.length;--t>=0&&n.item(t)!==o;);}while(t<0&&(o=o.parentElement));return o}),(function(){for(var e=0,t=["ms","moz","webkit","o"],n=0;n<t.length&&!window.requestAnimationFrame;++n)window.requestAnimationFrame=window[t[n]+"RequestAnimationFrame"],window.cancelAnimationFrame=window[t[n]+"CancelAnimationFrame"]||window[t[n]+"CancelRequestAnimationFrame"];window.requestAnimationFrame||(window.requestAnimationFrame=function(t,n){var o=(new Date).getTime(),i=Math.max(0,16-(o-e)),a=window.setTimeout((function(){t(o+i)}),i);return e=o+i,a}),window.cancelAnimationFrame||(window.cancelAnimationFrame=function(e){clearTimeout(e)})})(),(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t="querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype,n={ignore:"[data-scroll-ignore]",header:null,speed:500,offset:0,easing:"easeInOutCubic",customEasing:null,before:function(){},after:function(){}},o=function(){for(var e={},t=0,n=arguments.length;t<n;t++){var o=arguments[t];!(function(t){for(var n in t)t.hasOwnProperty(n)&&(e[n]=t[n])})(o)}return e},i=function(t){return parseInt(e.getComputedStyle(t).height,10)},a=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,i=-1,a="",r=n.charCodeAt(0);++i<o;){if(0===(t=n.charCodeAt(i)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===i&&t>=48&&t<=57||1===i&&t>=48&&t<=57&&45===r?a+="\\"+t.toString(16)+" ":a+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(i):"\\"+n.charAt(i)}return"#"+a},r=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},u=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},c=function(e,t,n){var o=0;if(e.offsetParent)do{o+=e.offsetTop,e=e.offsetParent}while(e);return o=Math.max(o-t-n,0)},l=function(e){return e?i(e)+e.offsetTop:0},s=function(t,n,o){o||(t.focus(),document.activeElement.id!==t.id&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},d=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)};return function(i,f){var m,h,g,w,p,v,y,b={};b.cancelScroll=function(){cancelAnimationFrame(y)},b.animateScroll=function(t,i,a){var d=o(m||n,a||{}),f="[object Number]"===Object.prototype.toString.call(t),h=f||!t.tagName?null:t;if(f||h){var g=e.pageYOffset;d.header&&!w&&(w=document.querySelector(d.header)),p||(p=l(w));var v,y,A,E=f?t:c(h,p,parseInt("function"==typeof d.offset?d.offset():d.offset,10)),S=E-g,I=u(),q=0,F=function(n,o){var a=e.pageYOffset;if(n==o||a==o||(g<o&&e.innerHeight+a)>=I)return b.cancelScroll(),s(t,o,f),d.after(t,i),v=null,!0},O=function(t){v||(v=t),q+=t-v,y=q/parseInt(d.speed,10),y=y>1?1:y,A=g+S*r(d,y),e.scrollTo(0,Math.floor(A)),F(A,E)||(e.requestAnimationFrame(O),v=t)};0===e.pageYOffset&&e.scrollTo(0,0),d.before(t,i),b.cancelScroll(),e.requestAnimationFrame(O)}};var A=function(e){h&&(h.id=h.getAttribute("data-scroll-id"),b.animateScroll(h,g),h=null,g=null)},E=function(t){if(!d()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&(g=t.target.closest(i))&&"a"===g.tagName.toLowerCase()&&!t.target.closest(m.ignore)&&g.hostname===e.location.hostname&&g.pathname===e.location.pathname&&/#/.test(g.href)){var n;try{n=a(decodeURIComponent(g.hash))}catch(e){n=a(g.hash)}if("#"===n){t.preventDefault(),h=document.body;var o=h.id?h.id:"smooth-scroll-top";return h.setAttribute("data-scroll-id",o),h.id="",void(e.location.hash.substring(1)===o?A():e.location.hash=o)}h=document.querySelector(n),h&&(h.setAttribute("data-scroll-id",h.id),h.id="",g.hash===e.location.hash&&(t.preventDefault(),A()))}},S=function(e){v||(v=setTimeout((function(){v=null,p=l(w)}),66))};return b.destroy=function(){m&&(document.removeEventListener("click",E,!1),e.removeEventListener("resize",S,!1),b.cancelScroll(),m=null,h=null,g=null,w=null,p=null,v=null,y=null)},b.init=function(i){t&&(b.destroy(),m=o(n,i||{}),w=m.header?document.querySelector(m.header):null,p=l(w),document.addEventListener("click",E,!1),e.addEventListener("hashchange",A,!1),w&&e.addEventListener("resize",S,!1))},b.init(f),b}}));
\ No newline at end of file
+/*! smooth-scroll v14.0.0 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
+window.Element&&!Element.prototype.closest&&(Element.prototype.closest=function(e){var t,n=(this.document||this.ownerDocument).querySelectorAll(e),o=this;do{for(t=n.length;--t>=0&&n.item(t)!==o;);}while(t<0&&(o=o.parentElement));return o}),(function(){for(var e=0,t=["ms","moz","webkit","o"],n=0;n<t.length&&!window.requestAnimationFrame;++n)window.requestAnimationFrame=window[t[n]+"RequestAnimationFrame"],window.cancelAnimationFrame=window[t[n]+"CancelAnimationFrame"]||window[t[n]+"CancelRequestAnimationFrame"];window.requestAnimationFrame||(window.requestAnimationFrame=function(t,n){var o=(new Date).getTime(),i=Math.max(0,16-(o-e)),r=window.setTimeout((function(){t(o+i)}),i);return e=o+i,r}),window.cancelAnimationFrame||(window.cancelAnimationFrame=function(e){clearTimeout(e)})})(),(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t="querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype,n={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,before:function(){},after:function(){}},o=function(){for(var e={},t=0;t<arguments.length;t++)!(function(t){for(var n in t)t.hasOwnProperty(n)&&(e[n]=t[n])})(arguments[t]);return e},i=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)},r=function(t){return parseInt(e.getComputedStyle(t).height,10)},a=function(e){var t;try{t=decodeURIComponent(e)}catch(n){t=e}return t},u=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,i=-1,r="",a=n.charCodeAt(0);++i<o;){if(0===(t=n.charCodeAt(i)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===i&&t>=48&&t<=57||1===i&&t>=48&&t<=57&&45===a?r+="\\"+t.toString(16)+" ":r+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(i):"\\"+n.charAt(i)}var u;try{u=decodeURIComponent("#"+r)}catch(e){u="#"+r}return u},c=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(e,t,n){var o=0;if(e.offsetParent)do{o+=e.offsetTop,e=e.offsetParent}while(e);return o=Math.max(o-t-n,0)},m=function(e){return e?r(e)+e.offsetTop:0},f=function(t,n,o){o||(t.focus(),document.activeElement.id!==t.id&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},d=function(e,t){history.pushState&&t.updateURL&&history.pushState({smoothScroll:JSON.stringify(t),anchor:e.id},document.title,0===e?"#top":"#"+e.id)};return function(r,h){var p,g,w,y,v,S,E,A={};A.cancelScroll=function(){cancelAnimationFrame(E),E=null},A.animateScroll=function(t,i,r){var a=o(p||n,r||{}),u="[object Number]"===Object.prototype.toString.call(t),h=u||!t.tagName?null:t;if(u||h){var g=e.pageYOffset;a.header&&!y&&(y=document.querySelector(a.header)),v||(v=m(y));var w,S,b,O=u?t:l(h,v,parseInt("function"==typeof a.offset?a.offset():a.offset,10)),I=O-g,q=s(),F=0,C=function(n,o){var r=e.pageYOffset;if(n==o||r==o||(g<o&&e.innerHeight+r)>=q)return A.cancelScroll(),f(t,o,u),a.after(t,i),w=null,E=null,!0},L=function(t){w||(w=t),F+=t-w,S=F/parseInt(a.speed,10),S=S>1?1:S,b=g+I*c(a,S),e.scrollTo(0,Math.floor(b)),C(b,O)||(E=e.requestAnimationFrame(L),w=t)};0===e.pageYOffset&&e.scrollTo(0,0),a.before(t,i),d(t,a),A.cancelScroll(),e.requestAnimationFrame(L)}};var b=function(t){if(!i()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&(w=t.target.closest(r))&&"a"===w.tagName.toLowerCase()&&!t.target.closest(p.ignore)&&w.hostname===e.location.hostname&&w.pathname===e.location.pathname&&/#/.test(w.href)){var n=u(a(w.hash));if(p.topOnEmptyHash&&-1!==["#","#top"].indexOf(n))return t.preventDefault(),void A.animateScroll(0,w);g=document.querySelector(n),g&&(t.preventDefault(),A.animateScroll(g,w))}},O=function(e){if(history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(p)&&history.state.anchor){var t=document.querySelector(u(a(history.state.anchor)));t&&A.animateScroll(t,null,{updateURL:!1})}},I=function(e){S||(S=setTimeout((function(){S=null,v=m(y)}),66))};return A.destroy=function(){p&&(document.removeEventListener("click",b,!1),e.removeEventListener("resize",I,!1),e.removeEventListener("popstate",O,!1),A.cancelScroll(),p=null,g=null,w=null,y=null,v=null,S=null,E=null)},A.init=function(i){t&&(A.destroy(),p=o(n,i||{}),y=p.header?document.querySelector(p.header):null,v=m(y),document.addEventListener("click",b,!1),y&&e.addEventListener("resize",I,!1),p.updateURL&&p.popstate&&e.addEventListener("popstate",O,!1))},A.init(h),A}}));
\ No newline at end of file
diff --git a/docs/dist/js/smooth-scroll.js b/docs/dist/js/smooth-scroll.js
index dec5cb4..7e0602e 100755
--- a/docs/dist/js/smooth-scroll.js
+++ b/docs/dist/js/smooth-scroll.js
@@ -1,16 +1,16 @@
 /*!
- * smooth-scroll v12.1.5: Animate scrolling to anchor links
- * (c) 2017 Chris Ferdinandi
+ * smooth-scroll v14.0.0: Animate scrolling to anchor links
+ * (c) 2018 Chris Ferdinandi
  * MIT License
  * http://github.com/cferdinandi/smooth-scroll
  */
 
 (function (root, factory) {
-	if ( typeof define === 'function' && define.amd ) {
+	if (typeof define === 'function' && define.amd) {
 		define([], (function () {
 			return factory(root);
 		}));
-	} else if ( typeof exports === 'object' ) {
+	} else if (typeof exports === 'object') {
 		module.exports = factory(root);
 	} else {
 		root.SmoothScroll = factory(root);
@@ -38,6 +38,7 @@
 		// Selectors
 		ignore: '[data-scroll-ignore]',
 		header: null,
+		topOnEmptyHash: true,
 
 		// Speed & Easing
 		speed: 500,
@@ -45,6 +46,10 @@
 		easing: 'easeInOutCubic',
 		customEasing: null,
 
+		// History
+		updateURL: true,
+		popstate: true,
+
 		// Callback API
 		before: function () {},
 		after: function () {}
@@ -64,9 +69,6 @@
 
 		// Variables
 		var extended = {};
-		var deep = false;
-		var i = 0;
-		var length = arguments.length;
 
 		// Merge the object into the extended object
 		var merge = function (obj) {
@@ -78,15 +80,25 @@
 		};
 
 		// Loop through each object and conduct a merge
-		for ( ; i < length; i++ ) {
-			var obj = arguments[i];
-			merge(obj);
+		for (var i = 0; i < arguments.length; i++) {
+			merge(arguments[i]);
 		}
 
 		return extended;
 
 	};
 
+	/**
+	 * Check to see if user prefers reduced motion
+	 * @param  {Object} settings Script settings
+	 */
+	var reduceMotion = function (settings) {
+		if ('matchMedia' in window && window.matchMedia('(prefers-reduced-motion)').matches) {
+			return true;
+		}
+		return false;
+	};
+
 	/**
 	 * Get the height of an element.
 	 * @param  {Node} elem The element to get the height of
@@ -96,11 +108,26 @@
 		return parseInt(window.getComputedStyle(elem).height, 10);
 	};
 
+	/**
+	 * Decode a URI, with error check
+	 * @param  {String} hash The URI to decode
+	 * @return {String}      A decoded URI (or the original string if an error is thrown)
+	 */
+	var decode = function (hash) {
+		var decoded;
+		try {
+			decoded = decodeURIComponent(hash);
+		} catch(e) {
+			decoded = hash;
+		}
+		return decoded;
+	};
+
 	/**
 	 * Escape special characters for use with querySelector
-	 * @param {String} id The anchor ID to escape
 	 * @author Mathias Bynens
 	 * @link https://github.com/mathiasbynens/CSS.escape
+	 * @param {String} id The anchor ID to escape
 	 */
 	var escapeCharacters = function (id) {
 
@@ -171,7 +198,14 @@
 
 		}
 
-		return '#' + result;
+		// Return sanitized hash
+		var hash;
+		try {
+			hash = decodeURIComponent('#' + result);
+		} catch(e) {
+			hash = '#' + result;
+		}
+		return hash;
 
 	};
 
@@ -267,15 +301,21 @@
 
 	};
 
-	/**
-	 * Check to see if user prefers reduced motion
-	 * @param  {Object} settings Script settings
-	 */
-	var reduceMotion = function (settings) {
-		if ('matchMedia' in window && window.matchMedia('(prefers-reduced-motion)').matches) {
-			return true;
-		}
-		return false;
+	var updateURL = function (anchor, options) {
+
+		// Verify that pushState is supported and the updateURL option is enabled
+		if (!history.pushState || !options.updateURL) return;
+
+		// Update URL
+		history.pushState(
+			{
+				smoothScroll: JSON.stringify(options),
+				anchor: anchor.id
+			},
+			document.title,
+			anchor === 0 ? '#top' : '#' + anchor.id
+		);
+
 	};
 
 
@@ -301,8 +341,8 @@
 		 * Cancel a scroll-in-progress
 		 */
 		smoothScroll.cancelScroll = function () {
-			// clearInterval(animationInterval);
 			cancelAnimationFrame(animationInterval);
+			animationInterval = null;
 		};
 
 		/**
@@ -323,7 +363,7 @@
 			var startLocation = window.pageYOffset; // Current location on the page
 			if (animateSettings.header && !fixedHeader) {
 				// Get the fixed header if not already set
-				fixedHeader = document.querySelector( animateSettings.header );
+				fixedHeader = document.querySelector(animateSettings.header);
 			}
 			if (!headerHeight) {
 				// Get the height of a fixed header if one exists and not already set
@@ -347,7 +387,7 @@
 				var currentLocation = window.pageYOffset;
 
 				// Check if the end location has been reached yet (or we've hit the end of the document)
-				if ( position == endLocation || currentLocation == endLocation || ((startLocation < endLocation && window.innerHeight + currentLocation) >= documentHeight )) {
+				if (position == endLocation || currentLocation == endLocation || ((startLocation < endLocation && window.innerHeight + currentLocation) >= documentHeight)) {
 
 					// Clear the animation timer
 					smoothScroll.cancelScroll();
@@ -360,6 +400,7 @@
 
 					// Reset start
 					start = null;
+					animationInterval = null;
 
 					return true;
 
@@ -377,7 +418,7 @@
 				position = startLocation + (distance * easingPattern(animateSettings, percentage));
 				window.scrollTo(0, Math.floor(position));
 				if (!stopAnimateScroll(position, endLocation)) {
-					window.requestAnimationFrame(loopAnimateScroll);
+					animationInterval = window.requestAnimationFrame(loopAnimateScroll);
 					start = timestamp;
 				}
 			};
@@ -387,37 +428,19 @@
 			 * @link https://github.com/cferdinandi/smooth-scroll/issues/45
 			 */
 			if (window.pageYOffset === 0) {
-				window.scrollTo( 0, 0 );
+				window.scrollTo(0, 0);
 			}
 
 			// Run callback before animation starts
 			animateSettings.before(anchor, toggle);
 
+			// Update the URL
+			updateURL(anchor, animateSettings);
+
 			// Start scrolling animation
 			smoothScroll.cancelScroll();
 			window.requestAnimationFrame(loopAnimateScroll);
 
-
-		};
-
-		/**
-		 * Handle has change event
-		 */
-		var hashChangeHandler = function (event) {
-
-			// Only run if there's an anchor element to scroll to
-			if (!anchor) return;
-
-			// Reset the anchor element's ID
-			anchor.id = anchor.getAttribute('data-scroll-id');
-
-			// Scroll to the anchored content
-			smoothScroll.animateScroll(anchor, toggle);
-
-			// Reset anchor and toggle
-			anchor = null;
-			toggle = null;
-
 		};
 
 		/**
@@ -438,35 +461,17 @@
 			// Only run if link is an anchor and points to the current page
 			if (toggle.hostname !== window.location.hostname || toggle.pathname !== window.location.pathname || !/#/.test(toggle.href)) return;
 
-			// Get the sanitized hash
-			var hash;
-			try {
-				hash = escapeCharacters(decodeURIComponent(toggle.hash));
-			} catch(e) {
-				hash = escapeCharacters(toggle.hash);
-			}
+			// Get an escaped version of the hash
+			var hash = escapeCharacters(decode(toggle.hash));
 
 			// If the hash is empty, scroll to the top of the page
-			if (hash === '#') {
+			if (settings.topOnEmptyHash && ['#', '#top'].indexOf(hash) !== -1) {
 
 				// Prevent default link behavior
 				event.preventDefault();
 
-				// Set the anchored element
-				anchor = document.body;
-
-				// Save or create the ID as a data attribute and remove it (prevents scroll jump)
-				var id = anchor.id ? anchor.id : 'smooth-scroll-top';
-				anchor.setAttribute('data-scroll-id', id);
-				anchor.id = '';
-
-				// If no hash change event will happen, fire manually
-				// Otherwise, update the hash
-				if (window.location.hash.substring(1) === id) {
-					hashChangeHandler();
-				} else {
-					window.location.hash = id;
-				}
+				// Scroll to the top of the page
+				smoothScroll.animateScroll(0, toggle);
 
 				return;
 
@@ -475,16 +480,30 @@
 			// Get the anchored element
 			anchor = document.querySelector(hash);
 
-			// If anchored element exists, save the ID as a data attribute and remove it (prevents scroll jump)
+			// If anchored element exists, scroll to it
 			if (!anchor) return;
-			anchor.setAttribute('data-scroll-id', anchor.id);
-			anchor.id = '';
+			event.preventDefault();
+			smoothScroll.animateScroll(anchor, toggle);
 
-			// If no hash change event will happen, fire manually
-			if (toggle.hash === window.location.hash) {
-				event.preventDefault();
-				hashChangeHandler();
-			}
+		};
+
+		/**
+		 * Animate scroll on popstate events
+		 */
+		var popstateHandler = function (event) {
+
+			// Only run if state is a popstate record for this instantiation
+			if (!history.state.smoothScroll || history.state.smoothScroll !== JSON.stringify(settings)) return;
+
+			// Only run if state includes an anchor
+			if (!history.state.anchor) return;
+
+			// Get the anchor
+			var anchor = document.querySelector(escapeCharacters(decode(history.state.anchor)));
+			if (!anchor) return;
+
+			// Animate scroll to anchor link
+			smoothScroll.animateScroll(anchor, null, {updateURL: false});
 
 		};
 
@@ -511,6 +530,7 @@
 			// Remove event listeners
 			document.removeEventListener('click', clickHandler, false);
 			window.removeEventListener('resize', resizeThrottler, false);
+			window.removeEventListener('popstate', popstateHandler, false);
 
 			// Cancel any scrolls-in-progress
 			smoothScroll.cancelScroll();
@@ -523,6 +543,7 @@
 			headerHeight = null;
 			eventTimeout = null;
 			animationInterval = null;
+
 		};
 
 		/**
@@ -545,14 +566,16 @@
 			// When a toggle is clicked, run the click handler
 			document.addEventListener('click', clickHandler, false);
 
-			// Listen for hash changes
-			window.addEventListener('hashchange', hashChangeHandler, false);
-
 			// If window is resized and there's a fixed header, recalculate its size
 			if (fixedHeader) {
 				window.addEventListener('resize', resizeThrottler, false);
 			}
 
+			// If updateURL and popState are enabled, listen for pop events
+			if (settings.updateURL && settings.popstate) {
+				window.addEventListener('popstate', popstateHandler, false);
+			}
+
 		};
 
 
diff --git a/docs/dist/js/smooth-scroll.min.js b/docs/dist/js/smooth-scroll.min.js
index 0cd1cf2..2f6e242 100755
--- a/docs/dist/js/smooth-scroll.min.js
+++ b/docs/dist/js/smooth-scroll.min.js
@@ -1,2 +1,2 @@
-/*! smooth-scroll v12.1.5 | (c) 2017 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
-!(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t="querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype,n={ignore:"[data-scroll-ignore]",header:null,speed:500,offset:0,easing:"easeInOutCubic",customEasing:null,before:function(){},after:function(){}},o=function(){for(var e={},t=0,n=arguments.length;t<n;t++){var o=arguments[t];!(function(t){for(var n in t)t.hasOwnProperty(n)&&(e[n]=t[n])})(o)}return e},a=function(t){return parseInt(e.getComputedStyle(t).height,10)},r=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,a=-1,r="",i=n.charCodeAt(0);++a<o;){if(0===(t=n.charCodeAt(a)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===a&&t>=48&&t<=57||1===a&&t>=48&&t<=57&&45===i?r+="\\"+t.toString(16)+" ":r+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(a):"\\"+n.charAt(a)}return"#"+r},i=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},u=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},c=function(e,t,n){var o=0;if(e.offsetParent)do{o+=e.offsetTop,e=e.offsetParent}while(e);return o=Math.max(o-t-n,0)},s=function(e){return e?a(e)+e.offsetTop:0},l=function(t,n,o){o||(t.focus(),document.activeElement.id!==t.id&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},f=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)};return function(a,d){var m,h,g,p,v,b,y,S={};S.cancelScroll=function(){cancelAnimationFrame(y)},S.animateScroll=function(t,a,r){var f=o(m||n,r||{}),d="[object Number]"===Object.prototype.toString.call(t),h=d||!t.tagName?null:t;if(d||h){var g=e.pageYOffset;f.header&&!p&&(p=document.querySelector(f.header)),v||(v=s(p));var b,y,E,I=d?t:c(h,v,parseInt("function"==typeof f.offset?f.offset():f.offset,10)),O=I-g,A=u(),C=0,w=function(n,o){var r=e.pageYOffset;if(n==o||r==o||(g<o&&e.innerHeight+r)>=A)return S.cancelScroll(),l(t,o,d),f.after(t,a),b=null,!0},Q=function(t){b||(b=t),C+=t-b,y=C/parseInt(f.speed,10),y=y>1?1:y,E=g+O*i(f,y),e.scrollTo(0,Math.floor(E)),w(E,I)||(e.requestAnimationFrame(Q),b=t)};0===e.pageYOffset&&e.scrollTo(0,0),f.before(t,a),S.cancelScroll(),e.requestAnimationFrame(Q)}};var E=function(e){h&&(h.id=h.getAttribute("data-scroll-id"),S.animateScroll(h,g),h=null,g=null)},I=function(t){if(!f()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&(g=t.target.closest(a))&&"a"===g.tagName.toLowerCase()&&!t.target.closest(m.ignore)&&g.hostname===e.location.hostname&&g.pathname===e.location.pathname&&/#/.test(g.href)){var n;try{n=r(decodeURIComponent(g.hash))}catch(e){n=r(g.hash)}if("#"===n){t.preventDefault(),h=document.body;var o=h.id?h.id:"smooth-scroll-top";return h.setAttribute("data-scroll-id",o),h.id="",void(e.location.hash.substring(1)===o?E():e.location.hash=o)}h=document.querySelector(n),h&&(h.setAttribute("data-scroll-id",h.id),h.id="",g.hash===e.location.hash&&(t.preventDefault(),E()))}},O=function(e){b||(b=setTimeout((function(){b=null,v=s(p)}),66))};return S.destroy=function(){m&&(document.removeEventListener("click",I,!1),e.removeEventListener("resize",O,!1),S.cancelScroll(),m=null,h=null,g=null,p=null,v=null,b=null,y=null)},S.init=function(a){t&&(S.destroy(),m=o(n,a||{}),p=m.header?document.querySelector(m.header):null,v=s(p),document.addEventListener("click",I,!1),e.addEventListener("hashchange",E,!1),p&&e.addEventListener("resize",O,!1))},S.init(d),S}}));
\ No newline at end of file
+/*! smooth-scroll v14.0.0 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
+!(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t="querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype,n={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,before:function(){},after:function(){}},o=function(){for(var e={},t=0;t<arguments.length;t++)!(function(t){for(var n in t)t.hasOwnProperty(n)&&(e[n]=t[n])})(arguments[t]);return e},r=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)},a=function(t){return parseInt(e.getComputedStyle(t).height,10)},i=function(e){var t;try{t=decodeURIComponent(e)}catch(n){t=e}return t},u=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,r=-1,a="",i=n.charCodeAt(0);++r<o;){if(0===(t=n.charCodeAt(r)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===r&&t>=48&&t<=57||1===r&&t>=48&&t<=57&&45===i?a+="\\"+t.toString(16)+" ":a+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(r):"\\"+n.charAt(r)}var u;try{u=decodeURIComponent("#"+a)}catch(e){u="#"+a}return u},c=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(e,t,n){var o=0;if(e.offsetParent)do{o+=e.offsetTop,e=e.offsetParent}while(e);return o=Math.max(o-t-n,0)},f=function(e){return e?a(e)+e.offsetTop:0},d=function(t,n,o){o||(t.focus(),document.activeElement.id!==t.id&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},m=function(e,t){history.pushState&&t.updateURL&&history.pushState({smoothScroll:JSON.stringify(t),anchor:e.id},document.title,0===e?"#top":"#"+e.id)};return function(a,h){var p,g,y,v,S,b,O,E={};E.cancelScroll=function(){cancelAnimationFrame(O),O=null},E.animateScroll=function(t,r,a){var i=o(p||n,a||{}),u="[object Number]"===Object.prototype.toString.call(t),h=u||!t.tagName?null:t;if(u||h){var g=e.pageYOffset;i.header&&!v&&(v=document.querySelector(i.header)),S||(S=f(v));var y,b,I,L=u?t:l(h,S,parseInt("function"==typeof i.offset?i.offset():i.offset,10)),C=L-g,A=s(),w=0,H=function(n,o){var a=e.pageYOffset;if(n==o||a==o||(g<o&&e.innerHeight+a)>=A)return E.cancelScroll(),d(t,o,u),i.after(t,r),y=null,O=null,!0},Q=function(t){y||(y=t),w+=t-y,b=w/parseInt(i.speed,10),b=b>1?1:b,I=g+C*c(i,b),e.scrollTo(0,Math.floor(I)),H(I,L)||(O=e.requestAnimationFrame(Q),y=t)};0===e.pageYOffset&&e.scrollTo(0,0),i.before(t,r),m(t,i),E.cancelScroll(),e.requestAnimationFrame(Q)}};var I=function(t){if(!r()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&(y=t.target.closest(a))&&"a"===y.tagName.toLowerCase()&&!t.target.closest(p.ignore)&&y.hostname===e.location.hostname&&y.pathname===e.location.pathname&&/#/.test(y.href)){var n=u(i(y.hash));if(p.topOnEmptyHash&&-1!==["#","#top"].indexOf(n))return t.preventDefault(),void E.animateScroll(0,y);g=document.querySelector(n),g&&(t.preventDefault(),E.animateScroll(g,y))}},L=function(e){if(history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(p)&&history.state.anchor){var t=document.querySelector(u(i(history.state.anchor)));t&&E.animateScroll(t,null,{updateURL:!1})}},C=function(e){b||(b=setTimeout((function(){b=null,S=f(v)}),66))};return E.destroy=function(){p&&(document.removeEventListener("click",I,!1),e.removeEventListener("resize",C,!1),e.removeEventListener("popstate",L,!1),E.cancelScroll(),p=null,g=null,y=null,v=null,S=null,b=null,O=null)},E.init=function(r){t&&(E.destroy(),p=o(n,r||{}),v=p.header?document.querySelector(p.header):null,S=f(v),document.addEventListener("click",I,!1),v&&e.addEventListener("resize",C,!1),p.updateURL&&p.popstate&&e.addEventListener("popstate",L,!1))},E.init(h),E}}));
\ No newline at end of file
diff --git a/docs/dist/js/smooth-scroll.polyfills.js b/docs/dist/js/smooth-scroll.polyfills.js
index 43c14be..ffcb742 100755
--- a/docs/dist/js/smooth-scroll.polyfills.js
+++ b/docs/dist/js/smooth-scroll.polyfills.js
@@ -1,6 +1,6 @@
 /*!
- * smooth-scroll v12.1.5: Animate scrolling to anchor links
- * (c) 2017 Chris Ferdinandi
+ * smooth-scroll v14.0.0: Animate scrolling to anchor links
+ * (c) 2018 Chris Ferdinandi
  * MIT License
  * http://github.com/cferdinandi/smooth-scroll
  */
@@ -57,11 +57,11 @@ if (window.Element && !Element.prototype.closest) {
 }());
 
 (function (root, factory) {
-	if ( typeof define === 'function' && define.amd ) {
+	if (typeof define === 'function' && define.amd) {
 		define([], (function () {
 			return factory(root);
 		}));
-	} else if ( typeof exports === 'object' ) {
+	} else if (typeof exports === 'object') {
 		module.exports = factory(root);
 	} else {
 		root.SmoothScroll = factory(root);
@@ -89,6 +89,7 @@ if (window.Element && !Element.prototype.closest) {
 		// Selectors
 		ignore: '[data-scroll-ignore]',
 		header: null,
+		topOnEmptyHash: true,
 
 		// Speed & Easing
 		speed: 500,
@@ -96,6 +97,10 @@ if (window.Element && !Element.prototype.closest) {
 		easing: 'easeInOutCubic',
 		customEasing: null,
 
+		// History
+		updateURL: true,
+		popstate: true,
+
 		// Callback API
 		before: function () {},
 		after: function () {}
@@ -115,9 +120,6 @@ if (window.Element && !Element.prototype.closest) {
 
 		// Variables
 		var extended = {};
-		var deep = false;
-		var i = 0;
-		var length = arguments.length;
 
 		// Merge the object into the extended object
 		var merge = function (obj) {
@@ -129,15 +131,25 @@ if (window.Element && !Element.prototype.closest) {
 		};
 
 		// Loop through each object and conduct a merge
-		for ( ; i < length; i++ ) {
-			var obj = arguments[i];
-			merge(obj);
+		for (var i = 0; i < arguments.length; i++) {
+			merge(arguments[i]);
 		}
 
 		return extended;
 
 	};
 
+	/**
+	 * Check to see if user prefers reduced motion
+	 * @param  {Object} settings Script settings
+	 */
+	var reduceMotion = function (settings) {
+		if ('matchMedia' in window && window.matchMedia('(prefers-reduced-motion)').matches) {
+			return true;
+		}
+		return false;
+	};
+
 	/**
 	 * Get the height of an element.
 	 * @param  {Node} elem The element to get the height of
@@ -147,11 +159,26 @@ if (window.Element && !Element.prototype.closest) {
 		return parseInt(window.getComputedStyle(elem).height, 10);
 	};
 
+	/**
+	 * Decode a URI, with error check
+	 * @param  {String} hash The URI to decode
+	 * @return {String}      A decoded URI (or the original string if an error is thrown)
+	 */
+	var decode = function (hash) {
+		var decoded;
+		try {
+			decoded = decodeURIComponent(hash);
+		} catch(e) {
+			decoded = hash;
+		}
+		return decoded;
+	};
+
 	/**
 	 * Escape special characters for use with querySelector
-	 * @param {String} id The anchor ID to escape
 	 * @author Mathias Bynens
 	 * @link https://github.com/mathiasbynens/CSS.escape
+	 * @param {String} id The anchor ID to escape
 	 */
 	var escapeCharacters = function (id) {
 
@@ -222,7 +249,14 @@ if (window.Element && !Element.prototype.closest) {
 
 		}
 
-		return '#' + result;
+		// Return sanitized hash
+		var hash;
+		try {
+			hash = decodeURIComponent('#' + result);
+		} catch(e) {
+			hash = '#' + result;
+		}
+		return hash;
 
 	};
 
@@ -318,15 +352,21 @@ if (window.Element && !Element.prototype.closest) {
 
 	};
 
-	/**
-	 * Check to see if user prefers reduced motion
-	 * @param  {Object} settings Script settings
-	 */
-	var reduceMotion = function (settings) {
-		if ('matchMedia' in window && window.matchMedia('(prefers-reduced-motion)').matches) {
-			return true;
-		}
-		return false;
+	var updateURL = function (anchor, options) {
+
+		// Verify that pushState is supported and the updateURL option is enabled
+		if (!history.pushState || !options.updateURL) return;
+
+		// Update URL
+		history.pushState(
+			{
+				smoothScroll: JSON.stringify(options),
+				anchor: anchor.id
+			},
+			document.title,
+			anchor === 0 ? '#top' : '#' + anchor.id
+		);
+
 	};
 
 
@@ -352,8 +392,8 @@ if (window.Element && !Element.prototype.closest) {
 		 * Cancel a scroll-in-progress
 		 */
 		smoothScroll.cancelScroll = function () {
-			// clearInterval(animationInterval);
 			cancelAnimationFrame(animationInterval);
+			animationInterval = null;
 		};
 
 		/**
@@ -374,7 +414,7 @@ if (window.Element && !Element.prototype.closest) {
 			var startLocation = window.pageYOffset; // Current location on the page
 			if (animateSettings.header && !fixedHeader) {
 				// Get the fixed header if not already set
-				fixedHeader = document.querySelector( animateSettings.header );
+				fixedHeader = document.querySelector(animateSettings.header);
 			}
 			if (!headerHeight) {
 				// Get the height of a fixed header if one exists and not already set
@@ -398,7 +438,7 @@ if (window.Element && !Element.prototype.closest) {
 				var currentLocation = window.pageYOffset;
 
 				// Check if the end location has been reached yet (or we've hit the end of the document)
-				if ( position == endLocation || currentLocation == endLocation || ((startLocation < endLocation && window.innerHeight + currentLocation) >= documentHeight )) {
+				if (position == endLocation || currentLocation == endLocation || ((startLocation < endLocation && window.innerHeight + currentLocation) >= documentHeight)) {
 
 					// Clear the animation timer
 					smoothScroll.cancelScroll();
@@ -411,6 +451,7 @@ if (window.Element && !Element.prototype.closest) {
 
 					// Reset start
 					start = null;
+					animationInterval = null;
 
 					return true;
 
@@ -428,7 +469,7 @@ if (window.Element && !Element.prototype.closest) {
 				position = startLocation + (distance * easingPattern(animateSettings, percentage));
 				window.scrollTo(0, Math.floor(position));
 				if (!stopAnimateScroll(position, endLocation)) {
-					window.requestAnimationFrame(loopAnimateScroll);
+					animationInterval = window.requestAnimationFrame(loopAnimateScroll);
 					start = timestamp;
 				}
 			};
@@ -438,37 +479,19 @@ if (window.Element && !Element.prototype.closest) {
 			 * @link https://github.com/cferdinandi/smooth-scroll/issues/45
 			 */
 			if (window.pageYOffset === 0) {
-				window.scrollTo( 0, 0 );
+				window.scrollTo(0, 0);
 			}
 
 			// Run callback before animation starts
 			animateSettings.before(anchor, toggle);
 
+			// Update the URL
+			updateURL(anchor, animateSettings);
+
 			// Start scrolling animation
 			smoothScroll.cancelScroll();
 			window.requestAnimationFrame(loopAnimateScroll);
 
-
-		};
-
-		/**
-		 * Handle has change event
-		 */
-		var hashChangeHandler = function (event) {
-
-			// Only run if there's an anchor element to scroll to
-			if (!anchor) return;
-
-			// Reset the anchor element's ID
-			anchor.id = anchor.getAttribute('data-scroll-id');
-
-			// Scroll to the anchored content
-			smoothScroll.animateScroll(anchor, toggle);
-
-			// Reset anchor and toggle
-			anchor = null;
-			toggle = null;
-
 		};
 
 		/**
@@ -489,35 +512,17 @@ if (window.Element && !Element.prototype.closest) {
 			// Only run if link is an anchor and points to the current page
 			if (toggle.hostname !== window.location.hostname || toggle.pathname !== window.location.pathname || !/#/.test(toggle.href)) return;
 
-			// Get the sanitized hash
-			var hash;
-			try {
-				hash = escapeCharacters(decodeURIComponent(toggle.hash));
-			} catch(e) {
-				hash = escapeCharacters(toggle.hash);
-			}
+			// Get an escaped version of the hash
+			var hash = escapeCharacters(decode(toggle.hash));
 
 			// If the hash is empty, scroll to the top of the page
-			if (hash === '#') {
+			if (settings.topOnEmptyHash && ['#', '#top'].indexOf(hash) !== -1) {
 
 				// Prevent default link behavior
 				event.preventDefault();
 
-				// Set the anchored element
-				anchor = document.body;
-
-				// Save or create the ID as a data attribute and remove it (prevents scroll jump)
-				var id = anchor.id ? anchor.id : 'smooth-scroll-top';
-				anchor.setAttribute('data-scroll-id', id);
-				anchor.id = '';
-
-				// If no hash change event will happen, fire manually
-				// Otherwise, update the hash
-				if (window.location.hash.substring(1) === id) {
-					hashChangeHandler();
-				} else {
-					window.location.hash = id;
-				}
+				// Scroll to the top of the page
+				smoothScroll.animateScroll(0, toggle);
 
 				return;
 
@@ -526,16 +531,30 @@ if (window.Element && !Element.prototype.closest) {
 			// Get the anchored element
 			anchor = document.querySelector(hash);
 
-			// If anchored element exists, save the ID as a data attribute and remove it (prevents scroll jump)
+			// If anchored element exists, scroll to it
 			if (!anchor) return;
-			anchor.setAttribute('data-scroll-id', anchor.id);
-			anchor.id = '';
+			event.preventDefault();
+			smoothScroll.animateScroll(anchor, toggle);
 
-			// If no hash change event will happen, fire manually
-			if (toggle.hash === window.location.hash) {
-				event.preventDefault();
-				hashChangeHandler();
-			}
+		};
+
+		/**
+		 * Animate scroll on popstate events
+		 */
+		var popstateHandler = function (event) {
+
+			// Only run if state is a popstate record for this instantiation
+			if (!history.state.smoothScroll || history.state.smoothScroll !== JSON.stringify(settings)) return;
+
+			// Only run if state includes an anchor
+			if (!history.state.anchor) return;
+
+			// Get the anchor
+			var anchor = document.querySelector(escapeCharacters(decode(history.state.anchor)));
+			if (!anchor) return;
+
+			// Animate scroll to anchor link
+			smoothScroll.animateScroll(anchor, null, {updateURL: false});
 
 		};
 
@@ -562,6 +581,7 @@ if (window.Element && !Element.prototype.closest) {
 			// Remove event listeners
 			document.removeEventListener('click', clickHandler, false);
 			window.removeEventListener('resize', resizeThrottler, false);
+			window.removeEventListener('popstate', popstateHandler, false);
 
 			// Cancel any scrolls-in-progress
 			smoothScroll.cancelScroll();
@@ -574,6 +594,7 @@ if (window.Element && !Element.prototype.closest) {
 			headerHeight = null;
 			eventTimeout = null;
 			animationInterval = null;
+
 		};
 
 		/**
@@ -596,14 +617,16 @@ if (window.Element && !Element.prototype.closest) {
 			// When a toggle is clicked, run the click handler
 			document.addEventListener('click', clickHandler, false);
 
-			// Listen for hash changes
-			window.addEventListener('hashchange', hashChangeHandler, false);
-
 			// If window is resized and there's a fixed header, recalculate its size
 			if (fixedHeader) {
 				window.addEventListener('resize', resizeThrottler, false);
 			}
 
+			// If updateURL and popState are enabled, listen for pop events
+			if (settings.updateURL && settings.popstate) {
+				window.addEventListener('popstate', popstateHandler, false);
+			}
+
 		};
 
 
diff --git a/docs/dist/js/smooth-scroll.polyfills.min.js b/docs/dist/js/smooth-scroll.polyfills.min.js
index d7677aa..575668e 100755
--- a/docs/dist/js/smooth-scroll.polyfills.min.js
+++ b/docs/dist/js/smooth-scroll.polyfills.min.js
@@ -1,2 +1,2 @@
-/*! smooth-scroll v12.1.5 | (c) 2017 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
-window.Element&&!Element.prototype.closest&&(Element.prototype.closest=function(e){var t,n=(this.document||this.ownerDocument).querySelectorAll(e),o=this;do{for(t=n.length;--t>=0&&n.item(t)!==o;);}while(t<0&&(o=o.parentElement));return o}),(function(){for(var e=0,t=["ms","moz","webkit","o"],n=0;n<t.length&&!window.requestAnimationFrame;++n)window.requestAnimationFrame=window[t[n]+"RequestAnimationFrame"],window.cancelAnimationFrame=window[t[n]+"CancelAnimationFrame"]||window[t[n]+"CancelRequestAnimationFrame"];window.requestAnimationFrame||(window.requestAnimationFrame=function(t,n){var o=(new Date).getTime(),i=Math.max(0,16-(o-e)),a=window.setTimeout((function(){t(o+i)}),i);return e=o+i,a}),window.cancelAnimationFrame||(window.cancelAnimationFrame=function(e){clearTimeout(e)})})(),(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t="querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype,n={ignore:"[data-scroll-ignore]",header:null,speed:500,offset:0,easing:"easeInOutCubic",customEasing:null,before:function(){},after:function(){}},o=function(){for(var e={},t=0,n=arguments.length;t<n;t++){var o=arguments[t];!(function(t){for(var n in t)t.hasOwnProperty(n)&&(e[n]=t[n])})(o)}return e},i=function(t){return parseInt(e.getComputedStyle(t).height,10)},a=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,i=-1,a="",r=n.charCodeAt(0);++i<o;){if(0===(t=n.charCodeAt(i)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===i&&t>=48&&t<=57||1===i&&t>=48&&t<=57&&45===r?a+="\\"+t.toString(16)+" ":a+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(i):"\\"+n.charAt(i)}return"#"+a},r=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},u=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},c=function(e,t,n){var o=0;if(e.offsetParent)do{o+=e.offsetTop,e=e.offsetParent}while(e);return o=Math.max(o-t-n,0)},l=function(e){return e?i(e)+e.offsetTop:0},s=function(t,n,o){o||(t.focus(),document.activeElement.id!==t.id&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},d=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)};return function(i,f){var m,h,g,w,p,v,y,b={};b.cancelScroll=function(){cancelAnimationFrame(y)},b.animateScroll=function(t,i,a){var d=o(m||n,a||{}),f="[object Number]"===Object.prototype.toString.call(t),h=f||!t.tagName?null:t;if(f||h){var g=e.pageYOffset;d.header&&!w&&(w=document.querySelector(d.header)),p||(p=l(w));var v,y,A,E=f?t:c(h,p,parseInt("function"==typeof d.offset?d.offset():d.offset,10)),S=E-g,I=u(),q=0,F=function(n,o){var a=e.pageYOffset;if(n==o||a==o||(g<o&&e.innerHeight+a)>=I)return b.cancelScroll(),s(t,o,f),d.after(t,i),v=null,!0},O=function(t){v||(v=t),q+=t-v,y=q/parseInt(d.speed,10),y=y>1?1:y,A=g+S*r(d,y),e.scrollTo(0,Math.floor(A)),F(A,E)||(e.requestAnimationFrame(O),v=t)};0===e.pageYOffset&&e.scrollTo(0,0),d.before(t,i),b.cancelScroll(),e.requestAnimationFrame(O)}};var A=function(e){h&&(h.id=h.getAttribute("data-scroll-id"),b.animateScroll(h,g),h=null,g=null)},E=function(t){if(!d()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&(g=t.target.closest(i))&&"a"===g.tagName.toLowerCase()&&!t.target.closest(m.ignore)&&g.hostname===e.location.hostname&&g.pathname===e.location.pathname&&/#/.test(g.href)){var n;try{n=a(decodeURIComponent(g.hash))}catch(e){n=a(g.hash)}if("#"===n){t.preventDefault(),h=document.body;var o=h.id?h.id:"smooth-scroll-top";return h.setAttribute("data-scroll-id",o),h.id="",void(e.location.hash.substring(1)===o?A():e.location.hash=o)}h=document.querySelector(n),h&&(h.setAttribute("data-scroll-id",h.id),h.id="",g.hash===e.location.hash&&(t.preventDefault(),A()))}},S=function(e){v||(v=setTimeout((function(){v=null,p=l(w)}),66))};return b.destroy=function(){m&&(document.removeEventListener("click",E,!1),e.removeEventListener("resize",S,!1),b.cancelScroll(),m=null,h=null,g=null,w=null,p=null,v=null,y=null)},b.init=function(i){t&&(b.destroy(),m=o(n,i||{}),w=m.header?document.querySelector(m.header):null,p=l(w),document.addEventListener("click",E,!1),e.addEventListener("hashchange",A,!1),w&&e.addEventListener("resize",S,!1))},b.init(f),b}}));
\ No newline at end of file
+/*! smooth-scroll v14.0.0 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
+window.Element&&!Element.prototype.closest&&(Element.prototype.closest=function(e){var t,n=(this.document||this.ownerDocument).querySelectorAll(e),o=this;do{for(t=n.length;--t>=0&&n.item(t)!==o;);}while(t<0&&(o=o.parentElement));return o}),(function(){for(var e=0,t=["ms","moz","webkit","o"],n=0;n<t.length&&!window.requestAnimationFrame;++n)window.requestAnimationFrame=window[t[n]+"RequestAnimationFrame"],window.cancelAnimationFrame=window[t[n]+"CancelAnimationFrame"]||window[t[n]+"CancelRequestAnimationFrame"];window.requestAnimationFrame||(window.requestAnimationFrame=function(t,n){var o=(new Date).getTime(),i=Math.max(0,16-(o-e)),r=window.setTimeout((function(){t(o+i)}),i);return e=o+i,r}),window.cancelAnimationFrame||(window.cancelAnimationFrame=function(e){clearTimeout(e)})})(),(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t="querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype,n={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,before:function(){},after:function(){}},o=function(){for(var e={},t=0;t<arguments.length;t++)!(function(t){for(var n in t)t.hasOwnProperty(n)&&(e[n]=t[n])})(arguments[t]);return e},i=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)},r=function(t){return parseInt(e.getComputedStyle(t).height,10)},a=function(e){var t;try{t=decodeURIComponent(e)}catch(n){t=e}return t},u=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,i=-1,r="",a=n.charCodeAt(0);++i<o;){if(0===(t=n.charCodeAt(i)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===i&&t>=48&&t<=57||1===i&&t>=48&&t<=57&&45===a?r+="\\"+t.toString(16)+" ":r+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(i):"\\"+n.charAt(i)}var u;try{u=decodeURIComponent("#"+r)}catch(e){u="#"+r}return u},c=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(e,t,n){var o=0;if(e.offsetParent)do{o+=e.offsetTop,e=e.offsetParent}while(e);return o=Math.max(o-t-n,0)},m=function(e){return e?r(e)+e.offsetTop:0},f=function(t,n,o){o||(t.focus(),document.activeElement.id!==t.id&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},d=function(e,t){history.pushState&&t.updateURL&&history.pushState({smoothScroll:JSON.stringify(t),anchor:e.id},document.title,0===e?"#top":"#"+e.id)};return function(r,h){var p,g,w,y,v,S,E,A={};A.cancelScroll=function(){cancelAnimationFrame(E),E=null},A.animateScroll=function(t,i,r){var a=o(p||n,r||{}),u="[object Number]"===Object.prototype.toString.call(t),h=u||!t.tagName?null:t;if(u||h){var g=e.pageYOffset;a.header&&!y&&(y=document.querySelector(a.header)),v||(v=m(y));var w,S,b,O=u?t:l(h,v,parseInt("function"==typeof a.offset?a.offset():a.offset,10)),I=O-g,q=s(),F=0,C=function(n,o){var r=e.pageYOffset;if(n==o||r==o||(g<o&&e.innerHeight+r)>=q)return A.cancelScroll(),f(t,o,u),a.after(t,i),w=null,E=null,!0},L=function(t){w||(w=t),F+=t-w,S=F/parseInt(a.speed,10),S=S>1?1:S,b=g+I*c(a,S),e.scrollTo(0,Math.floor(b)),C(b,O)||(E=e.requestAnimationFrame(L),w=t)};0===e.pageYOffset&&e.scrollTo(0,0),a.before(t,i),d(t,a),A.cancelScroll(),e.requestAnimationFrame(L)}};var b=function(t){if(!i()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&(w=t.target.closest(r))&&"a"===w.tagName.toLowerCase()&&!t.target.closest(p.ignore)&&w.hostname===e.location.hostname&&w.pathname===e.location.pathname&&/#/.test(w.href)){var n=u(a(w.hash));if(p.topOnEmptyHash&&-1!==["#","#top"].indexOf(n))return t.preventDefault(),void A.animateScroll(0,w);g=document.querySelector(n),g&&(t.preventDefault(),A.animateScroll(g,w))}},O=function(e){if(history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(p)&&history.state.anchor){var t=document.querySelector(u(a(history.state.anchor)));t&&A.animateScroll(t,null,{updateURL:!1})}},I=function(e){S||(S=setTimeout((function(){S=null,v=m(y)}),66))};return A.destroy=function(){p&&(document.removeEventListener("click",b,!1),e.removeEventListener("resize",I,!1),e.removeEventListener("popstate",O,!1),A.cancelScroll(),p=null,g=null,w=null,y=null,v=null,S=null,E=null)},A.init=function(i){t&&(A.destroy(),p=o(n,i||{}),y=p.header?document.querySelector(p.header):null,v=m(y),document.addEventListener("click",b,!1),y&&e.addEventListener("resize",I,!1),p.updateURL&&p.popstate&&e.addEventListener("popstate",O,!1))},A.init(h),A}}));
\ No newline at end of file
diff --git a/docs/index.html b/docs/index.html
index 9e1cd08..b07ed03 100755
--- a/docs/index.html
+++ b/docs/index.html
@@ -86,31 +86,34 @@ <h1>Smooth Scroll</h1>
     .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.
 </p>
 
-<p id="1@#%^-bottom"><a href="#">Back to the top</a></p>
+<p id="1@#%^-bottom"><a href="#top">Back to the top</a></p>
 			</section>
 		</main>
 
 		<!-- Javascript -->
 		<script src="http://github.com/dist/js/smooth-scroll.polyfills.min.js"></script>
 		<script>
-			var scroll = new SmoothScroll('a[href*="#"]:not([data-easing])');
+			var scroll = new SmoothScroll('a[href*="#"]', {
 
-			var linear = new SmoothScroll('[data-easing="linear"]', {easing: 'linear'});
+			});
+			// var scroll = new SmoothScroll('a[href*="#"]:not([data-easing])');
 
-			var easeInQuad = new SmoothScroll('[data-easing="easeInQuad"]', {easing: 'easeInQuad'});
-			var easeInCubic = new SmoothScroll('[data-easing="easeInCubic"]', {easing: 'easeInCubic'});
-			var easeInQuart = new SmoothScroll('[data-easing="easeInQuart"]', {easing: 'easeInQuart'});
-			var easeInQuint = new SmoothScroll('[data-easing="easeInQuint"]', {easing: 'easeInQuint'});
+			// var linear = new SmoothScroll('[data-easing="linear"]', {easing: 'linear'});
 
-			var easeInOutQuad = new SmoothScroll('[data-easing="easeInOutQuad"]', {easing: 'easeInOutQuad'});
-			var easeInOutCubic = new SmoothScroll('[data-easing="easeInOutCubic"]', {easing: 'easeInOutCubic'});
-			var easeInOutQuart = new SmoothScroll('[data-easing="easeInOutQuart"]', {easing: 'easeInOutQuart'});
-			var easeInOutQuint = new SmoothScroll('[data-easing="easeInOutQuint"]', {easing: 'easeInOutQuint'});
+			// var easeInQuad = new SmoothScroll('[data-easing="easeInQuad"]', {easing: 'easeInQuad'});
+			// var easeInCubic = new SmoothScroll('[data-easing="easeInCubic"]', {easing: 'easeInCubic'});
+			// var easeInQuart = new SmoothScroll('[data-easing="easeInQuart"]', {easing: 'easeInQuart'});
+			// var easeInQuint = new SmoothScroll('[data-easing="easeInQuint"]', {easing: 'easeInQuint'});
 
-			var easeOutQuad = new SmoothScroll('[data-easing="easeOutQuad"]', {easing: 'easeOutQuad'});
-			var easeOutCubic = new SmoothScroll('[data-easing="easeOutCubic"]', {easing: 'easeOutCubic'});
-			var easeOutQuart = new SmoothScroll('[data-easing="easeOutQuart"]', {easing: 'easeOutQuart'});
-			var easeOutQuint = new SmoothScroll('[data-easing="easeOutQuint"]', {easing: 'easeOutQuint'});
+			// var easeInOutQuad = new SmoothScroll('[data-easing="easeInOutQuad"]', {easing: 'easeInOutQuad'});
+			// var easeInOutCubic = new SmoothScroll('[data-easing="easeInOutCubic"]', {easing: 'easeInOutCubic'});
+			// var easeInOutQuart = new SmoothScroll('[data-easing="easeInOutQuart"]', {easing: 'easeInOutQuart'});
+			// var easeInOutQuint = new SmoothScroll('[data-easing="easeInOutQuint"]', {easing: 'easeInOutQuint'});
+
+			// var easeOutQuad = new SmoothScroll('[data-easing="easeOutQuad"]', {easing: 'easeOutQuad'});
+			// var easeOutCubic = new SmoothScroll('[data-easing="easeOutCubic"]', {easing: 'easeOutCubic'});
+			// var easeOutQuart = new SmoothScroll('[data-easing="easeOutQuart"]', {easing: 'easeOutQuart'});
+			// var easeOutQuint = new SmoothScroll('[data-easing="easeOutQuint"]', {easing: 'easeOutQuint'});
 		</script>
 
 
diff --git a/npm-debug.log.558243421 b/npm-debug.log.558243421
deleted file mode 100644
index e69de29..0000000
diff --git a/package.json b/package.json
index 84cbd2b..af8a26d 100755
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
 	"name": "smooth-scroll",
-	"version": "12.1.5",
+	"version": "14.0.0",
 	"description": "Animate scrolling to anchor links",
 	"main": "./dist/js/smooth-scroll.min.js",
 	"author": {
diff --git a/src/docs/_templates/_footer.html b/src/docs/_templates/_footer.html
index d345f64..2f84278 100755
--- a/src/docs/_templates/_footer.html
+++ b/src/docs/_templates/_footer.html
@@ -5,24 +5,27 @@
 		<!-- Javascript -->
 		<script src="http://github.com/dist/js/smooth-scroll.polyfills.min.js"></script>
 		<script>
-			var scroll = new SmoothScroll('a[href*="#"]:not([data-easing])');
+			var scroll = new SmoothScroll('a[href*="#"]', {
 
-			var linear = new SmoothScroll('[data-easing="linear"]', {easing: 'linear'});
+			});
+			// var scroll = new SmoothScroll('a[href*="#"]:not([data-easing])');
 
-			var easeInQuad = new SmoothScroll('[data-easing="easeInQuad"]', {easing: 'easeInQuad'});
-			var easeInCubic = new SmoothScroll('[data-easing="easeInCubic"]', {easing: 'easeInCubic'});
-			var easeInQuart = new SmoothScroll('[data-easing="easeInQuart"]', {easing: 'easeInQuart'});
-			var easeInQuint = new SmoothScroll('[data-easing="easeInQuint"]', {easing: 'easeInQuint'});
+			// var linear = new SmoothScroll('[data-easing="linear"]', {easing: 'linear'});
 
-			var easeInOutQuad = new SmoothScroll('[data-easing="easeInOutQuad"]', {easing: 'easeInOutQuad'});
-			var easeInOutCubic = new SmoothScroll('[data-easing="easeInOutCubic"]', {easing: 'easeInOutCubic'});
-			var easeInOutQuart = new SmoothScroll('[data-easing="easeInOutQuart"]', {easing: 'easeInOutQuart'});
-			var easeInOutQuint = new SmoothScroll('[data-easing="easeInOutQuint"]', {easing: 'easeInOutQuint'});
+			// var easeInQuad = new SmoothScroll('[data-easing="easeInQuad"]', {easing: 'easeInQuad'});
+			// var easeInCubic = new SmoothScroll('[data-easing="easeInCubic"]', {easing: 'easeInCubic'});
+			// var easeInQuart = new SmoothScroll('[data-easing="easeInQuart"]', {easing: 'easeInQuart'});
+			// var easeInQuint = new SmoothScroll('[data-easing="easeInQuint"]', {easing: 'easeInQuint'});
 
-			var easeOutQuad = new SmoothScroll('[data-easing="easeOutQuad"]', {easing: 'easeOutQuad'});
-			var easeOutCubic = new SmoothScroll('[data-easing="easeOutCubic"]', {easing: 'easeOutCubic'});
-			var easeOutQuart = new SmoothScroll('[data-easing="easeOutQuart"]', {easing: 'easeOutQuart'});
-			var easeOutQuint = new SmoothScroll('[data-easing="easeOutQuint"]', {easing: 'easeOutQuint'});
+			// var easeInOutQuad = new SmoothScroll('[data-easing="easeInOutQuad"]', {easing: 'easeInOutQuad'});
+			// var easeInOutCubic = new SmoothScroll('[data-easing="easeInOutCubic"]', {easing: 'easeInOutCubic'});
+			// var easeInOutQuart = new SmoothScroll('[data-easing="easeInOutQuart"]', {easing: 'easeInOutQuart'});
+			// var easeInOutQuint = new SmoothScroll('[data-easing="easeInOutQuint"]', {easing: 'easeInOutQuint'});
+
+			// var easeOutQuad = new SmoothScroll('[data-easing="easeOutQuad"]', {easing: 'easeOutQuad'});
+			// var easeOutCubic = new SmoothScroll('[data-easing="easeOutCubic"]', {easing: 'easeOutCubic'});
+			// var easeOutQuart = new SmoothScroll('[data-easing="easeOutQuart"]', {easing: 'easeOutQuart'});
+			// var easeOutQuint = new SmoothScroll('[data-easing="easeOutQuint"]', {easing: 'easeOutQuint'});
 		</script>
 
 
diff --git a/src/docs/index.md b/src/docs/index.md
index ad2e7f0..0f6328c 100755
--- a/src/docs/index.md
+++ b/src/docs/index.md
@@ -54,4 +54,4 @@
 	.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.
 </p>
 
-<p id="1@#%^-bottom"><a href="#">Back to the top</a></p>
\ No newline at end of file
+<p id="1@#%^-bottom"><a href="#top">Back to the top</a></p>
\ No newline at end of file
diff --git a/src/js/smooth-scroll.js b/src/js/smooth-scroll.js
index 7e83b2c..f9b751d 100755
--- a/src/js/smooth-scroll.js
+++ b/src/js/smooth-scroll.js
@@ -1,9 +1,9 @@
 (function (root, factory) {
-	if ( typeof define === 'function' && define.amd ) {
+	if (typeof define === 'function' && define.amd) {
 		define([], function () {
 			return factory(root);
 		});
-	} else if ( typeof exports === 'object' ) {
+	} else if (typeof exports === 'object') {
 		module.exports = factory(root);
 	} else {
 		root.SmoothScroll = factory(root);
@@ -31,6 +31,7 @@
 		// Selectors
 		ignore: '[data-scroll-ignore]',
 		header: null,
+		topOnEmptyHash: true,
 
 		// Speed & Easing
 		speed: 500,
@@ -38,6 +39,10 @@
 		easing: 'easeInOutCubic',
 		customEasing: null,
 
+		// History
+		updateURL: true,
+		popstate: true,
+
 		// Callback API
 		before: function () {},
 		after: function () {}
@@ -57,8 +62,6 @@
 
 		// Variables
 		var extended = {};
-		var i = 0;
-		var length = arguments.length;
 
 		// Merge the object into the extended object
 		var merge = function (obj) {
@@ -70,15 +73,25 @@
 		};
 
 		// Loop through each object and conduct a merge
-		for ( ; i < length; i++ ) {
-			var obj = arguments[i];
-			merge(obj);
+		for (var i = 0; i < arguments.length; i++) {
+			merge(arguments[i]);
 		}
 
 		return extended;
 
 	};
 
+	/**
+	 * Check to see if user prefers reduced motion
+	 * @param  {Object} settings Script settings
+	 */
+	var reduceMotion = function (settings) {
+		if ('matchMedia' in window && window.matchMedia('(prefers-reduced-motion)').matches) {
+			return true;
+		}
+		return false;
+	};
+
 	/**
 	 * Get the height of an element.
 	 * @param  {Node} elem The element to get the height of
@@ -88,11 +101,26 @@
 		return parseInt(window.getComputedStyle(elem).height, 10);
 	};
 
+	/**
+	 * Decode a URI, with error check
+	 * @param  {String} hash The URI to decode
+	 * @return {String}      A decoded URI (or the original string if an error is thrown)
+	 */
+	var decode = function (hash) {
+		var decoded;
+		try {
+			decoded = decodeURIComponent(hash);
+		} catch(e) {
+			decoded = hash;
+		}
+		return decoded;
+	};
+
 	/**
 	 * Escape special characters for use with querySelector
-	 * @param {String} id The anchor ID to escape
 	 * @author Mathias Bynens
 	 * @link https://github.com/mathiasbynens/CSS.escape
+	 * @param {String} id The anchor ID to escape
 	 */
 	var escapeCharacters = function (id) {
 
@@ -163,7 +191,14 @@
 
 		}
 
-		return '#' + result;
+		// Return sanitized hash
+		var hash;
+		try {
+			hash = decodeURIComponent('#' + result);
+		} catch(e) {
+			hash = '#' + result;
+		}
+		return hash;
 
 	};
 
@@ -259,15 +294,21 @@
 
 	};
 
-	/**
-	 * Check to see if user prefers reduced motion
-	 * @param  {Object} settings Script settings
-	 */
-	var reduceMotion = function (settings) {
-		if ('matchMedia' in window && window.matchMedia('(prefers-reduced-motion)').matches) {
-			return true;
-		}
-		return false;
+	var updateURL = function (anchor, options) {
+
+		// Verify that pushState is supported and the updateURL option is enabled
+		if (!history.pushState || !options.updateURL) return;
+
+		// Update URL
+		history.pushState(
+			{
+				smoothScroll: JSON.stringify(options),
+				anchor: anchor.id
+			},
+			document.title,
+			anchor === 0 ? '#top' : '#' + anchor.id
+		);
+
 	};
 
 
@@ -293,8 +334,8 @@
 		 * Cancel a scroll-in-progress
 		 */
 		smoothScroll.cancelScroll = function () {
-			// clearInterval(animationInterval);
 			cancelAnimationFrame(animationInterval);
+			animationInterval = null;
 		};
 
 		/**
@@ -315,7 +356,7 @@
 			var startLocation = window.pageYOffset; // Current location on the page
 			if (animateSettings.header && !fixedHeader) {
 				// Get the fixed header if not already set
-				fixedHeader = document.querySelector( animateSettings.header );
+				fixedHeader = document.querySelector(animateSettings.header);
 			}
 			if (!headerHeight) {
 				// Get the height of a fixed header if one exists and not already set
@@ -339,7 +380,7 @@
 				var currentLocation = window.pageYOffset;
 
 				// Check if the end location has been reached yet (or we've hit the end of the document)
-				if ( position == endLocation || currentLocation == endLocation || ((startLocation < endLocation && window.innerHeight + currentLocation) >= documentHeight )) {
+				if (position == endLocation || currentLocation == endLocation || ((startLocation < endLocation && window.innerHeight + currentLocation) >= documentHeight)) {
 
 					// Clear the animation timer
 					smoothScroll.cancelScroll();
@@ -352,6 +393,7 @@
 
 					// Reset start
 					start = null;
+					animationInterval = null;
 
 					return true;
 
@@ -369,7 +411,7 @@
 				position = startLocation + (distance * easingPattern(animateSettings, percentage));
 				window.scrollTo(0, Math.floor(position));
 				if (!stopAnimateScroll(position, endLocation)) {
-					window.requestAnimationFrame(loopAnimateScroll);
+					animationInterval = window.requestAnimationFrame(loopAnimateScroll);
 					start = timestamp;
 				}
 			};
@@ -379,37 +421,19 @@
 			 * @link https://github.com/cferdinandi/smooth-scroll/issues/45
 			 */
 			if (window.pageYOffset === 0) {
-				window.scrollTo( 0, 0 );
+				window.scrollTo(0, 0);
 			}
 
 			// Run callback before animation starts
 			animateSettings.before(anchor, toggle);
 
+			// Update the URL
+			updateURL(anchor, animateSettings);
+
 			// Start scrolling animation
 			smoothScroll.cancelScroll();
 			window.requestAnimationFrame(loopAnimateScroll);
 
-
-		};
-
-		/**
-		 * Handle has change event
-		 */
-		var hashChangeHandler = function (event) {
-
-			// Only run if there's an anchor element to scroll to
-			if (!anchor) return;
-
-			// Reset the anchor element's ID
-			anchor.id = anchor.getAttribute('data-scroll-id');
-
-			// Scroll to the anchored content
-			smoothScroll.animateScroll(anchor, toggle);
-
-			// Reset anchor and toggle
-			anchor = null;
-			toggle = null;
-
 		};
 
 		/**
@@ -430,35 +454,17 @@
 			// Only run if link is an anchor and points to the current page
 			if (toggle.hostname !== window.location.hostname || toggle.pathname !== window.location.pathname || !/#/.test(toggle.href)) return;
 
-			// Get the sanitized hash
-			var hash;
-			try {
-				hash = escapeCharacters(decodeURIComponent(toggle.hash));
-			} catch(e) {
-				hash = escapeCharacters(toggle.hash);
-			}
+			// Get an escaped version of the hash
+			var hash = escapeCharacters(decode(toggle.hash));
 
 			// If the hash is empty, scroll to the top of the page
-			if (hash === '#') {
+			if (settings.topOnEmptyHash && ['#', '#top'].indexOf(hash) !== -1) {
 
 				// Prevent default link behavior
 				event.preventDefault();
 
-				// Set the anchored element
-				anchor = document.body;
-
-				// Save or create the ID as a data attribute and remove it (prevents scroll jump)
-				var id = anchor.id ? anchor.id : 'smooth-scroll-top';
-				anchor.setAttribute('data-scroll-id', id);
-				anchor.id = '';
-
-				// If no hash change event will happen, fire manually
-				// Otherwise, update the hash
-				if (window.location.hash.substring(1) === id) {
-					hashChangeHandler();
-				} else {
-					window.location.hash = id;
-				}
+				// Scroll to the top of the page
+				smoothScroll.animateScroll(0, toggle);
 
 				return;
 
@@ -467,16 +473,30 @@
 			// Get the anchored element
 			anchor = document.querySelector(hash);
 
-			// If anchored element exists, save the ID as a data attribute and remove it (prevents scroll jump)
+			// If anchored element exists, scroll to it
 			if (!anchor) return;
-			anchor.setAttribute('data-scroll-id', anchor.id);
-			anchor.id = '';
+			event.preventDefault();
+			smoothScroll.animateScroll(anchor, toggle);
 
-			// If no hash change event will happen, fire manually
-			if (toggle.hash === window.location.hash) {
-				event.preventDefault();
-				hashChangeHandler();
-			}
+		};
+
+		/**
+		 * Animate scroll on popstate events
+		 */
+		var popstateHandler = function (event) {
+
+			// Only run if state is a popstate record for this instantiation
+			if (!history.state.smoothScroll || history.state.smoothScroll !== JSON.stringify(settings)) return;
+
+			// Only run if state includes an anchor
+			if (!history.state.anchor) return;
+
+			// Get the anchor
+			var anchor = document.querySelector(escapeCharacters(decode(history.state.anchor)));
+			if (!anchor) return;
+
+			// Animate scroll to anchor link
+			smoothScroll.animateScroll(anchor, null, {updateURL: false});
 
 		};
 
@@ -503,6 +523,7 @@
 			// Remove event listeners
 			document.removeEventListener('click', clickHandler, false);
 			window.removeEventListener('resize', resizeThrottler, false);
+			window.removeEventListener('popstate', popstateHandler, false);
 
 			// Cancel any scrolls-in-progress
 			smoothScroll.cancelScroll();
@@ -515,6 +536,7 @@
 			headerHeight = null;
 			eventTimeout = null;
 			animationInterval = null;
+
 		};
 
 		/**
@@ -537,14 +559,16 @@
 			// When a toggle is clicked, run the click handler
 			document.addEventListener('click', clickHandler, false);
 
-			// Listen for hash changes
-			window.addEventListener('hashchange', hashChangeHandler, false);
-
 			// If window is resized and there's a fixed header, recalculate its size
 			if (fixedHeader) {
 				window.addEventListener('resize', resizeThrottler, false);
 			}
 
+			// If updateURL and popState are enabled, listen for pop events
+			if (settings.updateURL && settings.popstate) {
+				window.addEventListener('popstate', popstateHandler, false);
+			}
+
 		};
 
 

From b768cf9c851bee1ae0e8cb7228d2c362b2711b4d Mon Sep 17 00:00:00 2001
From: cferdinandi <chris@gomakethings.com>
Date: Thu, 17 May 2018 19:38:26 -0400
Subject: [PATCH 03/51] v14.0.0: WIP Added feature test and option for custom
 events

---
 dist/js/smooth-scroll.js                    | 46 +++++++++++----
 dist/js/smooth-scroll.min.js                |  2 +-
 dist/js/smooth-scroll.polyfills.js          | 65 +++++++++++++++++----
 dist/js/smooth-scroll.polyfills.min.js      |  2 +-
 docs/dist/js/smooth-scroll.js               | 46 +++++++++++----
 docs/dist/js/smooth-scroll.min.js           |  2 +-
 docs/dist/js/smooth-scroll.polyfills.js     | 65 +++++++++++++++++----
 docs/dist/js/smooth-scroll.polyfills.min.js |  2 +-
 docs/index.html                             | 49 +++++++++-------
 src/docs/_templates/_footer.html            | 49 +++++++++-------
 src/js/_customEvent.polyfill.js             | 19 ++++++
 src/js/smooth-scroll.js                     | 46 +++++++++++----
 12 files changed, 294 insertions(+), 99 deletions(-)
 create mode 100644 src/js/_customEvent.polyfill.js

diff --git a/dist/js/smooth-scroll.js b/dist/js/smooth-scroll.js
index 7e0602e..3c57b41 100755
--- a/dist/js/smooth-scroll.js
+++ b/dist/js/smooth-scroll.js
@@ -50,9 +50,8 @@
 		updateURL: true,
 		popstate: true,
 
-		// Callback API
-		before: function () {},
-		after: function () {}
+		// Custom Events
+		emitEvents: true
 	};
 
 
@@ -301,6 +300,11 @@
 
 	};
 
+	/**
+	 * Update the URL
+	 * @param  {Node}   anchor  The anchor that was scrolled to
+	 * @param  {Object} options Settings for Smooth Scroll
+	 */
 	var updateURL = function (anchor, options) {
 
 		// Verify that pushState is supported and the updateURL option is enabled
@@ -318,6 +322,24 @@
 
 	};
 
+	/**
+	 * Emit a custom event
+	 * @todo  feature test before emitting
+	 * @todo  make optional with a setting
+	 * @param  {String} type The event type
+	 */
+	var emitEvent = function (type, anchor, toggle, options) {
+		if (!options.emitEvents || typeof window.CustomEvent !== 'function') return;
+		var event = new CustomEvent(type, {
+			bubbles: true,
+			detail: {
+				anchor: anchor,
+				toggle: toggle
+			}
+		});
+		document.dispatchEvent(event);
+	};
+
 
 	//
 	// SmoothScroll Constructor
@@ -340,9 +362,11 @@
 		/**
 		 * Cancel a scroll-in-progress
 		 */
-		smoothScroll.cancelScroll = function () {
+		smoothScroll.cancelScroll = function (noEvent) {
 			cancelAnimationFrame(animationInterval);
 			animationInterval = null;
+			if (noEvent) return;
+			emitEvent('scrollCancel');
 		};
 
 		/**
@@ -390,13 +414,13 @@
 				if (position == endLocation || currentLocation == endLocation || ((startLocation < endLocation && window.innerHeight + currentLocation) >= documentHeight)) {
 
 					// Clear the animation timer
-					smoothScroll.cancelScroll();
+					smoothScroll.cancelScroll(true);
 
 					// Bring the anchored element into focus
 					adjustFocus(anchor, endLocation, isNum);
 
-					// Run callback after animation complete
-					animateSettings.after(anchor, toggle);
+					// Emit a custom event
+					emitEvent('scrollStop', anchor, toggle);
 
 					// Reset start
 					start = null;
@@ -431,14 +455,14 @@
 				window.scrollTo(0, 0);
 			}
 
-			// Run callback before animation starts
-			animateSettings.before(anchor, toggle);
-
 			// Update the URL
 			updateURL(anchor, animateSettings);
 
+			// Emit a custom event
+			emitEvent('scrollStart', anchor, toggle);
+
 			// Start scrolling animation
-			smoothScroll.cancelScroll();
+			smoothScroll.cancelScroll(true);
 			window.requestAnimationFrame(loopAnimateScroll);
 
 		};
diff --git a/dist/js/smooth-scroll.min.js b/dist/js/smooth-scroll.min.js
index 2f6e242..f4279e6 100755
--- a/dist/js/smooth-scroll.min.js
+++ b/dist/js/smooth-scroll.min.js
@@ -1,2 +1,2 @@
 /*! smooth-scroll v14.0.0 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
-!(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t="querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype,n={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,before:function(){},after:function(){}},o=function(){for(var e={},t=0;t<arguments.length;t++)!(function(t){for(var n in t)t.hasOwnProperty(n)&&(e[n]=t[n])})(arguments[t]);return e},r=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)},a=function(t){return parseInt(e.getComputedStyle(t).height,10)},i=function(e){var t;try{t=decodeURIComponent(e)}catch(n){t=e}return t},u=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,r=-1,a="",i=n.charCodeAt(0);++r<o;){if(0===(t=n.charCodeAt(r)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===r&&t>=48&&t<=57||1===r&&t>=48&&t<=57&&45===i?a+="\\"+t.toString(16)+" ":a+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(r):"\\"+n.charAt(r)}var u;try{u=decodeURIComponent("#"+a)}catch(e){u="#"+a}return u},c=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(e,t,n){var o=0;if(e.offsetParent)do{o+=e.offsetTop,e=e.offsetParent}while(e);return o=Math.max(o-t-n,0)},f=function(e){return e?a(e)+e.offsetTop:0},d=function(t,n,o){o||(t.focus(),document.activeElement.id!==t.id&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},m=function(e,t){history.pushState&&t.updateURL&&history.pushState({smoothScroll:JSON.stringify(t),anchor:e.id},document.title,0===e?"#top":"#"+e.id)};return function(a,h){var p,g,y,v,S,b,O,E={};E.cancelScroll=function(){cancelAnimationFrame(O),O=null},E.animateScroll=function(t,r,a){var i=o(p||n,a||{}),u="[object Number]"===Object.prototype.toString.call(t),h=u||!t.tagName?null:t;if(u||h){var g=e.pageYOffset;i.header&&!v&&(v=document.querySelector(i.header)),S||(S=f(v));var y,b,I,L=u?t:l(h,S,parseInt("function"==typeof i.offset?i.offset():i.offset,10)),C=L-g,A=s(),w=0,H=function(n,o){var a=e.pageYOffset;if(n==o||a==o||(g<o&&e.innerHeight+a)>=A)return E.cancelScroll(),d(t,o,u),i.after(t,r),y=null,O=null,!0},Q=function(t){y||(y=t),w+=t-y,b=w/parseInt(i.speed,10),b=b>1?1:b,I=g+C*c(i,b),e.scrollTo(0,Math.floor(I)),H(I,L)||(O=e.requestAnimationFrame(Q),y=t)};0===e.pageYOffset&&e.scrollTo(0,0),i.before(t,r),m(t,i),E.cancelScroll(),e.requestAnimationFrame(Q)}};var I=function(t){if(!r()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&(y=t.target.closest(a))&&"a"===y.tagName.toLowerCase()&&!t.target.closest(p.ignore)&&y.hostname===e.location.hostname&&y.pathname===e.location.pathname&&/#/.test(y.href)){var n=u(i(y.hash));if(p.topOnEmptyHash&&-1!==["#","#top"].indexOf(n))return t.preventDefault(),void E.animateScroll(0,y);g=document.querySelector(n),g&&(t.preventDefault(),E.animateScroll(g,y))}},L=function(e){if(history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(p)&&history.state.anchor){var t=document.querySelector(u(i(history.state.anchor)));t&&E.animateScroll(t,null,{updateURL:!1})}},C=function(e){b||(b=setTimeout((function(){b=null,S=f(v)}),66))};return E.destroy=function(){p&&(document.removeEventListener("click",I,!1),e.removeEventListener("resize",C,!1),e.removeEventListener("popstate",L,!1),E.cancelScroll(),p=null,g=null,y=null,v=null,S=null,b=null,O=null)},E.init=function(r){t&&(E.destroy(),p=o(n,r||{}),v=p.header?document.querySelector(p.header):null,S=f(v),document.addEventListener("click",I,!1),v&&e.addEventListener("resize",C,!1),p.updateURL&&p.popstate&&e.addEventListener("popstate",L,!1))},E.init(h),E}}));
\ No newline at end of file
+!(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t="querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype,n={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},o=function(){for(var e={},t=0;t<arguments.length;t++)!(function(t){for(var n in t)t.hasOwnProperty(n)&&(e[n]=t[n])})(arguments[t]);return e},r=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)},a=function(t){return parseInt(e.getComputedStyle(t).height,10)},i=function(e){var t;try{t=decodeURIComponent(e)}catch(n){t=e}return t},u=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,r=-1,a="",i=n.charCodeAt(0);++r<o;){if(0===(t=n.charCodeAt(r)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===r&&t>=48&&t<=57||1===r&&t>=48&&t<=57&&45===i?a+="\\"+t.toString(16)+" ":a+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(r):"\\"+n.charAt(r)}var u;try{u=decodeURIComponent("#"+a)}catch(e){u="#"+a}return u},c=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(e,t,n){var o=0;if(e.offsetParent)do{o+=e.offsetTop,e=e.offsetParent}while(e);return o=Math.max(o-t-n,0)},f=function(e){return e?a(e)+e.offsetTop:0},d=function(t,n,o){o||(t.focus(),document.activeElement.id!==t.id&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},m=function(e,t){history.pushState&&t.updateURL&&history.pushState({smoothScroll:JSON.stringify(t),anchor:e.id},document.title,0===e?"#top":"#"+e.id)},h=function(t,n,o,r){if(r.emitEvents&&"function"==typeof e.CustomEvent){var a=new CustomEvent(t,{bubbles:!0,detail:{anchor:n,toggle:o}});document.dispatchEvent(a)}};return function(a,p){var g,v,y,S,E,b,O,I={};I.cancelScroll=function(e){cancelAnimationFrame(O),O=null,e||h("scrollCancel")},I.animateScroll=function(t,r,a){var i=o(g||n,a||{}),u="[object Number]"===Object.prototype.toString.call(t),p=u||!t.tagName?null:t;if(u||p){var v=e.pageYOffset;i.header&&!S&&(S=document.querySelector(i.header)),E||(E=f(S));var y,b,C,L=u?t:l(p,E,parseInt("function"==typeof i.offset?i.offset():i.offset,10)),w=L-v,A=s(),H=0,Q=function(n,o){var a=e.pageYOffset;if(n==o||a==o||(v<o&&e.innerHeight+a)>=A)return I.cancelScroll(!0),d(t,o,u),h("scrollStop",t,r),y=null,O=null,!0},q=function(t){y||(y=t),H+=t-y,b=H/parseInt(i.speed,10),b=b>1?1:b,C=v+w*c(i,b),e.scrollTo(0,Math.floor(C)),Q(C,L)||(O=e.requestAnimationFrame(q),y=t)};0===e.pageYOffset&&e.scrollTo(0,0),m(t,i),h("scrollStart",t,r),I.cancelScroll(!0),e.requestAnimationFrame(q)}};var C=function(t){if(!r()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&(y=t.target.closest(a))&&"a"===y.tagName.toLowerCase()&&!t.target.closest(g.ignore)&&y.hostname===e.location.hostname&&y.pathname===e.location.pathname&&/#/.test(y.href)){var n=u(i(y.hash));if(g.topOnEmptyHash&&-1!==["#","#top"].indexOf(n))return t.preventDefault(),void I.animateScroll(0,y);v=document.querySelector(n),v&&(t.preventDefault(),I.animateScroll(v,y))}},L=function(e){if(history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(g)&&history.state.anchor){var t=document.querySelector(u(i(history.state.anchor)));t&&I.animateScroll(t,null,{updateURL:!1})}},w=function(e){b||(b=setTimeout((function(){b=null,E=f(S)}),66))};return I.destroy=function(){g&&(document.removeEventListener("click",C,!1),e.removeEventListener("resize",w,!1),e.removeEventListener("popstate",L,!1),I.cancelScroll(),g=null,v=null,y=null,S=null,E=null,b=null,O=null)},I.init=function(r){t&&(I.destroy(),g=o(n,r||{}),S=g.header?document.querySelector(g.header):null,E=f(S),document.addEventListener("click",C,!1),S&&e.addEventListener("resize",w,!1),g.updateURL&&g.popstate&&e.addEventListener("popstate",L,!1))},I.init(p),I}}));
\ No newline at end of file
diff --git a/dist/js/smooth-scroll.polyfills.js b/dist/js/smooth-scroll.polyfills.js
index ffcb742..baddb6f 100755
--- a/dist/js/smooth-scroll.polyfills.js
+++ b/dist/js/smooth-scroll.polyfills.js
@@ -22,6 +22,25 @@ if (window.Element && !Element.prototype.closest) {
 	};
 }
 
+/**
+ * CustomEvent() polyfill
+ * https://developer.mozilla.org/en-US/docs/Web/API/CustomEvent/CustomEvent#Polyfill
+ */
+(function () {
+
+	if (typeof window.CustomEvent === "function") return false;
+
+	function CustomEvent(event, params) {
+		params = params || { bubbles: false, cancelable: false, detail: undefined };
+		var evt = document.createEvent('CustomEvent');
+		evt.initCustomEvent(event, params.bubbles, params.cancelable, params.detail);
+		return evt;
+	}
+
+	CustomEvent.prototype = window.Event.prototype;
+
+	window.CustomEvent = CustomEvent;
+})();
 /**
  * requestAnimationFrame() polyfill
  * By Erik Möller. Fixes from Paul Irish and Tino Zijdel.
@@ -101,9 +120,8 @@ if (window.Element && !Element.prototype.closest) {
 		updateURL: true,
 		popstate: true,
 
-		// Callback API
-		before: function () {},
-		after: function () {}
+		// Custom Events
+		emitEvents: true
 	};
 
 
@@ -352,6 +370,11 @@ if (window.Element && !Element.prototype.closest) {
 
 	};
 
+	/**
+	 * Update the URL
+	 * @param  {Node}   anchor  The anchor that was scrolled to
+	 * @param  {Object} options Settings for Smooth Scroll
+	 */
 	var updateURL = function (anchor, options) {
 
 		// Verify that pushState is supported and the updateURL option is enabled
@@ -369,6 +392,24 @@ if (window.Element && !Element.prototype.closest) {
 
 	};
 
+	/**
+	 * Emit a custom event
+	 * @todo  feature test before emitting
+	 * @todo  make optional with a setting
+	 * @param  {String} type The event type
+	 */
+	var emitEvent = function (type, anchor, toggle, options) {
+		if (!options.emitEvents || typeof window.CustomEvent !== 'function') return;
+		var event = new CustomEvent(type, {
+			bubbles: true,
+			detail: {
+				anchor: anchor,
+				toggle: toggle
+			}
+		});
+		document.dispatchEvent(event);
+	};
+
 
 	//
 	// SmoothScroll Constructor
@@ -391,9 +432,11 @@ if (window.Element && !Element.prototype.closest) {
 		/**
 		 * Cancel a scroll-in-progress
 		 */
-		smoothScroll.cancelScroll = function () {
+		smoothScroll.cancelScroll = function (noEvent) {
 			cancelAnimationFrame(animationInterval);
 			animationInterval = null;
+			if (noEvent) return;
+			emitEvent('scrollCancel');
 		};
 
 		/**
@@ -441,13 +484,13 @@ if (window.Element && !Element.prototype.closest) {
 				if (position == endLocation || currentLocation == endLocation || ((startLocation < endLocation && window.innerHeight + currentLocation) >= documentHeight)) {
 
 					// Clear the animation timer
-					smoothScroll.cancelScroll();
+					smoothScroll.cancelScroll(true);
 
 					// Bring the anchored element into focus
 					adjustFocus(anchor, endLocation, isNum);
 
-					// Run callback after animation complete
-					animateSettings.after(anchor, toggle);
+					// Emit a custom event
+					emitEvent('scrollStop', anchor, toggle);
 
 					// Reset start
 					start = null;
@@ -482,14 +525,14 @@ if (window.Element && !Element.prototype.closest) {
 				window.scrollTo(0, 0);
 			}
 
-			// Run callback before animation starts
-			animateSettings.before(anchor, toggle);
-
 			// Update the URL
 			updateURL(anchor, animateSettings);
 
+			// Emit a custom event
+			emitEvent('scrollStart', anchor, toggle);
+
 			// Start scrolling animation
-			smoothScroll.cancelScroll();
+			smoothScroll.cancelScroll(true);
 			window.requestAnimationFrame(loopAnimateScroll);
 
 		};
diff --git a/dist/js/smooth-scroll.polyfills.min.js b/dist/js/smooth-scroll.polyfills.min.js
index 575668e..86cbd06 100755
--- a/dist/js/smooth-scroll.polyfills.min.js
+++ b/dist/js/smooth-scroll.polyfills.min.js
@@ -1,2 +1,2 @@
 /*! smooth-scroll v14.0.0 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
-window.Element&&!Element.prototype.closest&&(Element.prototype.closest=function(e){var t,n=(this.document||this.ownerDocument).querySelectorAll(e),o=this;do{for(t=n.length;--t>=0&&n.item(t)!==o;);}while(t<0&&(o=o.parentElement));return o}),(function(){for(var e=0,t=["ms","moz","webkit","o"],n=0;n<t.length&&!window.requestAnimationFrame;++n)window.requestAnimationFrame=window[t[n]+"RequestAnimationFrame"],window.cancelAnimationFrame=window[t[n]+"CancelAnimationFrame"]||window[t[n]+"CancelRequestAnimationFrame"];window.requestAnimationFrame||(window.requestAnimationFrame=function(t,n){var o=(new Date).getTime(),i=Math.max(0,16-(o-e)),r=window.setTimeout((function(){t(o+i)}),i);return e=o+i,r}),window.cancelAnimationFrame||(window.cancelAnimationFrame=function(e){clearTimeout(e)})})(),(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t="querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype,n={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,before:function(){},after:function(){}},o=function(){for(var e={},t=0;t<arguments.length;t++)!(function(t){for(var n in t)t.hasOwnProperty(n)&&(e[n]=t[n])})(arguments[t]);return e},i=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)},r=function(t){return parseInt(e.getComputedStyle(t).height,10)},a=function(e){var t;try{t=decodeURIComponent(e)}catch(n){t=e}return t},u=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,i=-1,r="",a=n.charCodeAt(0);++i<o;){if(0===(t=n.charCodeAt(i)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===i&&t>=48&&t<=57||1===i&&t>=48&&t<=57&&45===a?r+="\\"+t.toString(16)+" ":r+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(i):"\\"+n.charAt(i)}var u;try{u=decodeURIComponent("#"+r)}catch(e){u="#"+r}return u},c=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(e,t,n){var o=0;if(e.offsetParent)do{o+=e.offsetTop,e=e.offsetParent}while(e);return o=Math.max(o-t-n,0)},m=function(e){return e?r(e)+e.offsetTop:0},f=function(t,n,o){o||(t.focus(),document.activeElement.id!==t.id&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},d=function(e,t){history.pushState&&t.updateURL&&history.pushState({smoothScroll:JSON.stringify(t),anchor:e.id},document.title,0===e?"#top":"#"+e.id)};return function(r,h){var p,g,w,y,v,S,E,A={};A.cancelScroll=function(){cancelAnimationFrame(E),E=null},A.animateScroll=function(t,i,r){var a=o(p||n,r||{}),u="[object Number]"===Object.prototype.toString.call(t),h=u||!t.tagName?null:t;if(u||h){var g=e.pageYOffset;a.header&&!y&&(y=document.querySelector(a.header)),v||(v=m(y));var w,S,b,O=u?t:l(h,v,parseInt("function"==typeof a.offset?a.offset():a.offset,10)),I=O-g,q=s(),F=0,C=function(n,o){var r=e.pageYOffset;if(n==o||r==o||(g<o&&e.innerHeight+r)>=q)return A.cancelScroll(),f(t,o,u),a.after(t,i),w=null,E=null,!0},L=function(t){w||(w=t),F+=t-w,S=F/parseInt(a.speed,10),S=S>1?1:S,b=g+I*c(a,S),e.scrollTo(0,Math.floor(b)),C(b,O)||(E=e.requestAnimationFrame(L),w=t)};0===e.pageYOffset&&e.scrollTo(0,0),a.before(t,i),d(t,a),A.cancelScroll(),e.requestAnimationFrame(L)}};var b=function(t){if(!i()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&(w=t.target.closest(r))&&"a"===w.tagName.toLowerCase()&&!t.target.closest(p.ignore)&&w.hostname===e.location.hostname&&w.pathname===e.location.pathname&&/#/.test(w.href)){var n=u(a(w.hash));if(p.topOnEmptyHash&&-1!==["#","#top"].indexOf(n))return t.preventDefault(),void A.animateScroll(0,w);g=document.querySelector(n),g&&(t.preventDefault(),A.animateScroll(g,w))}},O=function(e){if(history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(p)&&history.state.anchor){var t=document.querySelector(u(a(history.state.anchor)));t&&A.animateScroll(t,null,{updateURL:!1})}},I=function(e){S||(S=setTimeout((function(){S=null,v=m(y)}),66))};return A.destroy=function(){p&&(document.removeEventListener("click",b,!1),e.removeEventListener("resize",I,!1),e.removeEventListener("popstate",O,!1),A.cancelScroll(),p=null,g=null,w=null,y=null,v=null,S=null,E=null)},A.init=function(i){t&&(A.destroy(),p=o(n,i||{}),y=p.header?document.querySelector(p.header):null,v=m(y),document.addEventListener("click",b,!1),y&&e.addEventListener("resize",I,!1),p.updateURL&&p.popstate&&e.addEventListener("popstate",O,!1))},A.init(h),A}}));
\ No newline at end of file
+window.Element&&!Element.prototype.closest&&(Element.prototype.closest=function(e){var t,n=(this.document||this.ownerDocument).querySelectorAll(e),o=this;do{for(t=n.length;--t>=0&&n.item(t)!==o;);}while(t<0&&(o=o.parentElement));return o}),(function(){function e(e,t){t=t||{bubbles:!1,cancelable:!1,detail:void 0};var n=document.createEvent("CustomEvent");return n.initCustomEvent(e,t.bubbles,t.cancelable,t.detail),n}if("function"==typeof window.CustomEvent)return!1;e.prototype=window.Event.prototype,window.CustomEvent=e})(),(function(){for(var e=0,t=["ms","moz","webkit","o"],n=0;n<t.length&&!window.requestAnimationFrame;++n)window.requestAnimationFrame=window[t[n]+"RequestAnimationFrame"],window.cancelAnimationFrame=window[t[n]+"CancelAnimationFrame"]||window[t[n]+"CancelRequestAnimationFrame"];window.requestAnimationFrame||(window.requestAnimationFrame=function(t,n){var o=(new Date).getTime(),i=Math.max(0,16-(o-e)),a=window.setTimeout((function(){t(o+i)}),i);return e=o+i,a}),window.cancelAnimationFrame||(window.cancelAnimationFrame=function(e){clearTimeout(e)})})(),(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t="querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype,n={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},o=function(){for(var e={},t=0;t<arguments.length;t++)!(function(t){for(var n in t)t.hasOwnProperty(n)&&(e[n]=t[n])})(arguments[t]);return e},i=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)},a=function(t){return parseInt(e.getComputedStyle(t).height,10)},r=function(e){var t;try{t=decodeURIComponent(e)}catch(n){t=e}return t},u=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,i=-1,a="",r=n.charCodeAt(0);++i<o;){if(0===(t=n.charCodeAt(i)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===i&&t>=48&&t<=57||1===i&&t>=48&&t<=57&&45===r?a+="\\"+t.toString(16)+" ":a+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(i):"\\"+n.charAt(i)}var u;try{u=decodeURIComponent("#"+a)}catch(e){u="#"+a}return u},c=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(e,t,n){var o=0;if(e.offsetParent)do{o+=e.offsetTop,e=e.offsetParent}while(e);return o=Math.max(o-t-n,0)},m=function(e){return e?a(e)+e.offsetTop:0},d=function(t,n,o){o||(t.focus(),document.activeElement.id!==t.id&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},f=function(e,t){history.pushState&&t.updateURL&&history.pushState({smoothScroll:JSON.stringify(t),anchor:e.id},document.title,0===e?"#top":"#"+e.id)},h=function(t,n,o,i){if(i.emitEvents&&"function"==typeof e.CustomEvent){var a=new CustomEvent(t,{bubbles:!0,detail:{anchor:n,toggle:o}});document.dispatchEvent(a)}};return function(a,p){var g,v,w,y,E,b,S,A={};A.cancelScroll=function(e){cancelAnimationFrame(S),S=null,e||h("scrollCancel")},A.animateScroll=function(t,i,a){var r=o(g||n,a||{}),u="[object Number]"===Object.prototype.toString.call(t),p=u||!t.tagName?null:t;if(u||p){var v=e.pageYOffset;r.header&&!y&&(y=document.querySelector(r.header)),E||(E=m(y));var w,b,C,O=u?t:l(p,E,parseInt("function"==typeof r.offset?r.offset():r.offset,10)),I=O-v,q=s(),F=0,L=function(n,o){var a=e.pageYOffset;if(n==o||a==o||(v<o&&e.innerHeight+a)>=q)return A.cancelScroll(!0),d(t,o,u),h("scrollStop",t,i),w=null,S=null,!0},H=function(t){w||(w=t),F+=t-w,b=F/parseInt(r.speed,10),b=b>1?1:b,C=v+I*c(r,b),e.scrollTo(0,Math.floor(C)),L(C,O)||(S=e.requestAnimationFrame(H),w=t)};0===e.pageYOffset&&e.scrollTo(0,0),f(t,r),h("scrollStart",t,i),A.cancelScroll(!0),e.requestAnimationFrame(H)}};var C=function(t){if(!i()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&(w=t.target.closest(a))&&"a"===w.tagName.toLowerCase()&&!t.target.closest(g.ignore)&&w.hostname===e.location.hostname&&w.pathname===e.location.pathname&&/#/.test(w.href)){var n=u(r(w.hash));if(g.topOnEmptyHash&&-1!==["#","#top"].indexOf(n))return t.preventDefault(),void A.animateScroll(0,w);v=document.querySelector(n),v&&(t.preventDefault(),A.animateScroll(v,w))}},O=function(e){if(history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(g)&&history.state.anchor){var t=document.querySelector(u(r(history.state.anchor)));t&&A.animateScroll(t,null,{updateURL:!1})}},I=function(e){b||(b=setTimeout((function(){b=null,E=m(y)}),66))};return A.destroy=function(){g&&(document.removeEventListener("click",C,!1),e.removeEventListener("resize",I,!1),e.removeEventListener("popstate",O,!1),A.cancelScroll(),g=null,v=null,w=null,y=null,E=null,b=null,S=null)},A.init=function(i){t&&(A.destroy(),g=o(n,i||{}),y=g.header?document.querySelector(g.header):null,E=m(y),document.addEventListener("click",C,!1),y&&e.addEventListener("resize",I,!1),g.updateURL&&g.popstate&&e.addEventListener("popstate",O,!1))},A.init(p),A}}));
\ No newline at end of file
diff --git a/docs/dist/js/smooth-scroll.js b/docs/dist/js/smooth-scroll.js
index 7e0602e..3c57b41 100755
--- a/docs/dist/js/smooth-scroll.js
+++ b/docs/dist/js/smooth-scroll.js
@@ -50,9 +50,8 @@
 		updateURL: true,
 		popstate: true,
 
-		// Callback API
-		before: function () {},
-		after: function () {}
+		// Custom Events
+		emitEvents: true
 	};
 
 
@@ -301,6 +300,11 @@
 
 	};
 
+	/**
+	 * Update the URL
+	 * @param  {Node}   anchor  The anchor that was scrolled to
+	 * @param  {Object} options Settings for Smooth Scroll
+	 */
 	var updateURL = function (anchor, options) {
 
 		// Verify that pushState is supported and the updateURL option is enabled
@@ -318,6 +322,24 @@
 
 	};
 
+	/**
+	 * Emit a custom event
+	 * @todo  feature test before emitting
+	 * @todo  make optional with a setting
+	 * @param  {String} type The event type
+	 */
+	var emitEvent = function (type, anchor, toggle, options) {
+		if (!options.emitEvents || typeof window.CustomEvent !== 'function') return;
+		var event = new CustomEvent(type, {
+			bubbles: true,
+			detail: {
+				anchor: anchor,
+				toggle: toggle
+			}
+		});
+		document.dispatchEvent(event);
+	};
+
 
 	//
 	// SmoothScroll Constructor
@@ -340,9 +362,11 @@
 		/**
 		 * Cancel a scroll-in-progress
 		 */
-		smoothScroll.cancelScroll = function () {
+		smoothScroll.cancelScroll = function (noEvent) {
 			cancelAnimationFrame(animationInterval);
 			animationInterval = null;
+			if (noEvent) return;
+			emitEvent('scrollCancel');
 		};
 
 		/**
@@ -390,13 +414,13 @@
 				if (position == endLocation || currentLocation == endLocation || ((startLocation < endLocation && window.innerHeight + currentLocation) >= documentHeight)) {
 
 					// Clear the animation timer
-					smoothScroll.cancelScroll();
+					smoothScroll.cancelScroll(true);
 
 					// Bring the anchored element into focus
 					adjustFocus(anchor, endLocation, isNum);
 
-					// Run callback after animation complete
-					animateSettings.after(anchor, toggle);
+					// Emit a custom event
+					emitEvent('scrollStop', anchor, toggle);
 
 					// Reset start
 					start = null;
@@ -431,14 +455,14 @@
 				window.scrollTo(0, 0);
 			}
 
-			// Run callback before animation starts
-			animateSettings.before(anchor, toggle);
-
 			// Update the URL
 			updateURL(anchor, animateSettings);
 
+			// Emit a custom event
+			emitEvent('scrollStart', anchor, toggle);
+
 			// Start scrolling animation
-			smoothScroll.cancelScroll();
+			smoothScroll.cancelScroll(true);
 			window.requestAnimationFrame(loopAnimateScroll);
 
 		};
diff --git a/docs/dist/js/smooth-scroll.min.js b/docs/dist/js/smooth-scroll.min.js
index 2f6e242..f4279e6 100755
--- a/docs/dist/js/smooth-scroll.min.js
+++ b/docs/dist/js/smooth-scroll.min.js
@@ -1,2 +1,2 @@
 /*! smooth-scroll v14.0.0 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
-!(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t="querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype,n={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,before:function(){},after:function(){}},o=function(){for(var e={},t=0;t<arguments.length;t++)!(function(t){for(var n in t)t.hasOwnProperty(n)&&(e[n]=t[n])})(arguments[t]);return e},r=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)},a=function(t){return parseInt(e.getComputedStyle(t).height,10)},i=function(e){var t;try{t=decodeURIComponent(e)}catch(n){t=e}return t},u=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,r=-1,a="",i=n.charCodeAt(0);++r<o;){if(0===(t=n.charCodeAt(r)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===r&&t>=48&&t<=57||1===r&&t>=48&&t<=57&&45===i?a+="\\"+t.toString(16)+" ":a+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(r):"\\"+n.charAt(r)}var u;try{u=decodeURIComponent("#"+a)}catch(e){u="#"+a}return u},c=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(e,t,n){var o=0;if(e.offsetParent)do{o+=e.offsetTop,e=e.offsetParent}while(e);return o=Math.max(o-t-n,0)},f=function(e){return e?a(e)+e.offsetTop:0},d=function(t,n,o){o||(t.focus(),document.activeElement.id!==t.id&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},m=function(e,t){history.pushState&&t.updateURL&&history.pushState({smoothScroll:JSON.stringify(t),anchor:e.id},document.title,0===e?"#top":"#"+e.id)};return function(a,h){var p,g,y,v,S,b,O,E={};E.cancelScroll=function(){cancelAnimationFrame(O),O=null},E.animateScroll=function(t,r,a){var i=o(p||n,a||{}),u="[object Number]"===Object.prototype.toString.call(t),h=u||!t.tagName?null:t;if(u||h){var g=e.pageYOffset;i.header&&!v&&(v=document.querySelector(i.header)),S||(S=f(v));var y,b,I,L=u?t:l(h,S,parseInt("function"==typeof i.offset?i.offset():i.offset,10)),C=L-g,A=s(),w=0,H=function(n,o){var a=e.pageYOffset;if(n==o||a==o||(g<o&&e.innerHeight+a)>=A)return E.cancelScroll(),d(t,o,u),i.after(t,r),y=null,O=null,!0},Q=function(t){y||(y=t),w+=t-y,b=w/parseInt(i.speed,10),b=b>1?1:b,I=g+C*c(i,b),e.scrollTo(0,Math.floor(I)),H(I,L)||(O=e.requestAnimationFrame(Q),y=t)};0===e.pageYOffset&&e.scrollTo(0,0),i.before(t,r),m(t,i),E.cancelScroll(),e.requestAnimationFrame(Q)}};var I=function(t){if(!r()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&(y=t.target.closest(a))&&"a"===y.tagName.toLowerCase()&&!t.target.closest(p.ignore)&&y.hostname===e.location.hostname&&y.pathname===e.location.pathname&&/#/.test(y.href)){var n=u(i(y.hash));if(p.topOnEmptyHash&&-1!==["#","#top"].indexOf(n))return t.preventDefault(),void E.animateScroll(0,y);g=document.querySelector(n),g&&(t.preventDefault(),E.animateScroll(g,y))}},L=function(e){if(history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(p)&&history.state.anchor){var t=document.querySelector(u(i(history.state.anchor)));t&&E.animateScroll(t,null,{updateURL:!1})}},C=function(e){b||(b=setTimeout((function(){b=null,S=f(v)}),66))};return E.destroy=function(){p&&(document.removeEventListener("click",I,!1),e.removeEventListener("resize",C,!1),e.removeEventListener("popstate",L,!1),E.cancelScroll(),p=null,g=null,y=null,v=null,S=null,b=null,O=null)},E.init=function(r){t&&(E.destroy(),p=o(n,r||{}),v=p.header?document.querySelector(p.header):null,S=f(v),document.addEventListener("click",I,!1),v&&e.addEventListener("resize",C,!1),p.updateURL&&p.popstate&&e.addEventListener("popstate",L,!1))},E.init(h),E}}));
\ No newline at end of file
+!(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t="querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype,n={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},o=function(){for(var e={},t=0;t<arguments.length;t++)!(function(t){for(var n in t)t.hasOwnProperty(n)&&(e[n]=t[n])})(arguments[t]);return e},r=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)},a=function(t){return parseInt(e.getComputedStyle(t).height,10)},i=function(e){var t;try{t=decodeURIComponent(e)}catch(n){t=e}return t},u=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,r=-1,a="",i=n.charCodeAt(0);++r<o;){if(0===(t=n.charCodeAt(r)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===r&&t>=48&&t<=57||1===r&&t>=48&&t<=57&&45===i?a+="\\"+t.toString(16)+" ":a+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(r):"\\"+n.charAt(r)}var u;try{u=decodeURIComponent("#"+a)}catch(e){u="#"+a}return u},c=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(e,t,n){var o=0;if(e.offsetParent)do{o+=e.offsetTop,e=e.offsetParent}while(e);return o=Math.max(o-t-n,0)},f=function(e){return e?a(e)+e.offsetTop:0},d=function(t,n,o){o||(t.focus(),document.activeElement.id!==t.id&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},m=function(e,t){history.pushState&&t.updateURL&&history.pushState({smoothScroll:JSON.stringify(t),anchor:e.id},document.title,0===e?"#top":"#"+e.id)},h=function(t,n,o,r){if(r.emitEvents&&"function"==typeof e.CustomEvent){var a=new CustomEvent(t,{bubbles:!0,detail:{anchor:n,toggle:o}});document.dispatchEvent(a)}};return function(a,p){var g,v,y,S,E,b,O,I={};I.cancelScroll=function(e){cancelAnimationFrame(O),O=null,e||h("scrollCancel")},I.animateScroll=function(t,r,a){var i=o(g||n,a||{}),u="[object Number]"===Object.prototype.toString.call(t),p=u||!t.tagName?null:t;if(u||p){var v=e.pageYOffset;i.header&&!S&&(S=document.querySelector(i.header)),E||(E=f(S));var y,b,C,L=u?t:l(p,E,parseInt("function"==typeof i.offset?i.offset():i.offset,10)),w=L-v,A=s(),H=0,Q=function(n,o){var a=e.pageYOffset;if(n==o||a==o||(v<o&&e.innerHeight+a)>=A)return I.cancelScroll(!0),d(t,o,u),h("scrollStop",t,r),y=null,O=null,!0},q=function(t){y||(y=t),H+=t-y,b=H/parseInt(i.speed,10),b=b>1?1:b,C=v+w*c(i,b),e.scrollTo(0,Math.floor(C)),Q(C,L)||(O=e.requestAnimationFrame(q),y=t)};0===e.pageYOffset&&e.scrollTo(0,0),m(t,i),h("scrollStart",t,r),I.cancelScroll(!0),e.requestAnimationFrame(q)}};var C=function(t){if(!r()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&(y=t.target.closest(a))&&"a"===y.tagName.toLowerCase()&&!t.target.closest(g.ignore)&&y.hostname===e.location.hostname&&y.pathname===e.location.pathname&&/#/.test(y.href)){var n=u(i(y.hash));if(g.topOnEmptyHash&&-1!==["#","#top"].indexOf(n))return t.preventDefault(),void I.animateScroll(0,y);v=document.querySelector(n),v&&(t.preventDefault(),I.animateScroll(v,y))}},L=function(e){if(history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(g)&&history.state.anchor){var t=document.querySelector(u(i(history.state.anchor)));t&&I.animateScroll(t,null,{updateURL:!1})}},w=function(e){b||(b=setTimeout((function(){b=null,E=f(S)}),66))};return I.destroy=function(){g&&(document.removeEventListener("click",C,!1),e.removeEventListener("resize",w,!1),e.removeEventListener("popstate",L,!1),I.cancelScroll(),g=null,v=null,y=null,S=null,E=null,b=null,O=null)},I.init=function(r){t&&(I.destroy(),g=o(n,r||{}),S=g.header?document.querySelector(g.header):null,E=f(S),document.addEventListener("click",C,!1),S&&e.addEventListener("resize",w,!1),g.updateURL&&g.popstate&&e.addEventListener("popstate",L,!1))},I.init(p),I}}));
\ No newline at end of file
diff --git a/docs/dist/js/smooth-scroll.polyfills.js b/docs/dist/js/smooth-scroll.polyfills.js
index ffcb742..baddb6f 100755
--- a/docs/dist/js/smooth-scroll.polyfills.js
+++ b/docs/dist/js/smooth-scroll.polyfills.js
@@ -22,6 +22,25 @@ if (window.Element && !Element.prototype.closest) {
 	};
 }
 
+/**
+ * CustomEvent() polyfill
+ * https://developer.mozilla.org/en-US/docs/Web/API/CustomEvent/CustomEvent#Polyfill
+ */
+(function () {
+
+	if (typeof window.CustomEvent === "function") return false;
+
+	function CustomEvent(event, params) {
+		params = params || { bubbles: false, cancelable: false, detail: undefined };
+		var evt = document.createEvent('CustomEvent');
+		evt.initCustomEvent(event, params.bubbles, params.cancelable, params.detail);
+		return evt;
+	}
+
+	CustomEvent.prototype = window.Event.prototype;
+
+	window.CustomEvent = CustomEvent;
+})();
 /**
  * requestAnimationFrame() polyfill
  * By Erik Möller. Fixes from Paul Irish and Tino Zijdel.
@@ -101,9 +120,8 @@ if (window.Element && !Element.prototype.closest) {
 		updateURL: true,
 		popstate: true,
 
-		// Callback API
-		before: function () {},
-		after: function () {}
+		// Custom Events
+		emitEvents: true
 	};
 
 
@@ -352,6 +370,11 @@ if (window.Element && !Element.prototype.closest) {
 
 	};
 
+	/**
+	 * Update the URL
+	 * @param  {Node}   anchor  The anchor that was scrolled to
+	 * @param  {Object} options Settings for Smooth Scroll
+	 */
 	var updateURL = function (anchor, options) {
 
 		// Verify that pushState is supported and the updateURL option is enabled
@@ -369,6 +392,24 @@ if (window.Element && !Element.prototype.closest) {
 
 	};
 
+	/**
+	 * Emit a custom event
+	 * @todo  feature test before emitting
+	 * @todo  make optional with a setting
+	 * @param  {String} type The event type
+	 */
+	var emitEvent = function (type, anchor, toggle, options) {
+		if (!options.emitEvents || typeof window.CustomEvent !== 'function') return;
+		var event = new CustomEvent(type, {
+			bubbles: true,
+			detail: {
+				anchor: anchor,
+				toggle: toggle
+			}
+		});
+		document.dispatchEvent(event);
+	};
+
 
 	//
 	// SmoothScroll Constructor
@@ -391,9 +432,11 @@ if (window.Element && !Element.prototype.closest) {
 		/**
 		 * Cancel a scroll-in-progress
 		 */
-		smoothScroll.cancelScroll = function () {
+		smoothScroll.cancelScroll = function (noEvent) {
 			cancelAnimationFrame(animationInterval);
 			animationInterval = null;
+			if (noEvent) return;
+			emitEvent('scrollCancel');
 		};
 
 		/**
@@ -441,13 +484,13 @@ if (window.Element && !Element.prototype.closest) {
 				if (position == endLocation || currentLocation == endLocation || ((startLocation < endLocation && window.innerHeight + currentLocation) >= documentHeight)) {
 
 					// Clear the animation timer
-					smoothScroll.cancelScroll();
+					smoothScroll.cancelScroll(true);
 
 					// Bring the anchored element into focus
 					adjustFocus(anchor, endLocation, isNum);
 
-					// Run callback after animation complete
-					animateSettings.after(anchor, toggle);
+					// Emit a custom event
+					emitEvent('scrollStop', anchor, toggle);
 
 					// Reset start
 					start = null;
@@ -482,14 +525,14 @@ if (window.Element && !Element.prototype.closest) {
 				window.scrollTo(0, 0);
 			}
 
-			// Run callback before animation starts
-			animateSettings.before(anchor, toggle);
-
 			// Update the URL
 			updateURL(anchor, animateSettings);
 
+			// Emit a custom event
+			emitEvent('scrollStart', anchor, toggle);
+
 			// Start scrolling animation
-			smoothScroll.cancelScroll();
+			smoothScroll.cancelScroll(true);
 			window.requestAnimationFrame(loopAnimateScroll);
 
 		};
diff --git a/docs/dist/js/smooth-scroll.polyfills.min.js b/docs/dist/js/smooth-scroll.polyfills.min.js
index 575668e..86cbd06 100755
--- a/docs/dist/js/smooth-scroll.polyfills.min.js
+++ b/docs/dist/js/smooth-scroll.polyfills.min.js
@@ -1,2 +1,2 @@
 /*! smooth-scroll v14.0.0 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
-window.Element&&!Element.prototype.closest&&(Element.prototype.closest=function(e){var t,n=(this.document||this.ownerDocument).querySelectorAll(e),o=this;do{for(t=n.length;--t>=0&&n.item(t)!==o;);}while(t<0&&(o=o.parentElement));return o}),(function(){for(var e=0,t=["ms","moz","webkit","o"],n=0;n<t.length&&!window.requestAnimationFrame;++n)window.requestAnimationFrame=window[t[n]+"RequestAnimationFrame"],window.cancelAnimationFrame=window[t[n]+"CancelAnimationFrame"]||window[t[n]+"CancelRequestAnimationFrame"];window.requestAnimationFrame||(window.requestAnimationFrame=function(t,n){var o=(new Date).getTime(),i=Math.max(0,16-(o-e)),r=window.setTimeout((function(){t(o+i)}),i);return e=o+i,r}),window.cancelAnimationFrame||(window.cancelAnimationFrame=function(e){clearTimeout(e)})})(),(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t="querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype,n={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,before:function(){},after:function(){}},o=function(){for(var e={},t=0;t<arguments.length;t++)!(function(t){for(var n in t)t.hasOwnProperty(n)&&(e[n]=t[n])})(arguments[t]);return e},i=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)},r=function(t){return parseInt(e.getComputedStyle(t).height,10)},a=function(e){var t;try{t=decodeURIComponent(e)}catch(n){t=e}return t},u=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,i=-1,r="",a=n.charCodeAt(0);++i<o;){if(0===(t=n.charCodeAt(i)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===i&&t>=48&&t<=57||1===i&&t>=48&&t<=57&&45===a?r+="\\"+t.toString(16)+" ":r+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(i):"\\"+n.charAt(i)}var u;try{u=decodeURIComponent("#"+r)}catch(e){u="#"+r}return u},c=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(e,t,n){var o=0;if(e.offsetParent)do{o+=e.offsetTop,e=e.offsetParent}while(e);return o=Math.max(o-t-n,0)},m=function(e){return e?r(e)+e.offsetTop:0},f=function(t,n,o){o||(t.focus(),document.activeElement.id!==t.id&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},d=function(e,t){history.pushState&&t.updateURL&&history.pushState({smoothScroll:JSON.stringify(t),anchor:e.id},document.title,0===e?"#top":"#"+e.id)};return function(r,h){var p,g,w,y,v,S,E,A={};A.cancelScroll=function(){cancelAnimationFrame(E),E=null},A.animateScroll=function(t,i,r){var a=o(p||n,r||{}),u="[object Number]"===Object.prototype.toString.call(t),h=u||!t.tagName?null:t;if(u||h){var g=e.pageYOffset;a.header&&!y&&(y=document.querySelector(a.header)),v||(v=m(y));var w,S,b,O=u?t:l(h,v,parseInt("function"==typeof a.offset?a.offset():a.offset,10)),I=O-g,q=s(),F=0,C=function(n,o){var r=e.pageYOffset;if(n==o||r==o||(g<o&&e.innerHeight+r)>=q)return A.cancelScroll(),f(t,o,u),a.after(t,i),w=null,E=null,!0},L=function(t){w||(w=t),F+=t-w,S=F/parseInt(a.speed,10),S=S>1?1:S,b=g+I*c(a,S),e.scrollTo(0,Math.floor(b)),C(b,O)||(E=e.requestAnimationFrame(L),w=t)};0===e.pageYOffset&&e.scrollTo(0,0),a.before(t,i),d(t,a),A.cancelScroll(),e.requestAnimationFrame(L)}};var b=function(t){if(!i()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&(w=t.target.closest(r))&&"a"===w.tagName.toLowerCase()&&!t.target.closest(p.ignore)&&w.hostname===e.location.hostname&&w.pathname===e.location.pathname&&/#/.test(w.href)){var n=u(a(w.hash));if(p.topOnEmptyHash&&-1!==["#","#top"].indexOf(n))return t.preventDefault(),void A.animateScroll(0,w);g=document.querySelector(n),g&&(t.preventDefault(),A.animateScroll(g,w))}},O=function(e){if(history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(p)&&history.state.anchor){var t=document.querySelector(u(a(history.state.anchor)));t&&A.animateScroll(t,null,{updateURL:!1})}},I=function(e){S||(S=setTimeout((function(){S=null,v=m(y)}),66))};return A.destroy=function(){p&&(document.removeEventListener("click",b,!1),e.removeEventListener("resize",I,!1),e.removeEventListener("popstate",O,!1),A.cancelScroll(),p=null,g=null,w=null,y=null,v=null,S=null,E=null)},A.init=function(i){t&&(A.destroy(),p=o(n,i||{}),y=p.header?document.querySelector(p.header):null,v=m(y),document.addEventListener("click",b,!1),y&&e.addEventListener("resize",I,!1),p.updateURL&&p.popstate&&e.addEventListener("popstate",O,!1))},A.init(h),A}}));
\ No newline at end of file
+window.Element&&!Element.prototype.closest&&(Element.prototype.closest=function(e){var t,n=(this.document||this.ownerDocument).querySelectorAll(e),o=this;do{for(t=n.length;--t>=0&&n.item(t)!==o;);}while(t<0&&(o=o.parentElement));return o}),(function(){function e(e,t){t=t||{bubbles:!1,cancelable:!1,detail:void 0};var n=document.createEvent("CustomEvent");return n.initCustomEvent(e,t.bubbles,t.cancelable,t.detail),n}if("function"==typeof window.CustomEvent)return!1;e.prototype=window.Event.prototype,window.CustomEvent=e})(),(function(){for(var e=0,t=["ms","moz","webkit","o"],n=0;n<t.length&&!window.requestAnimationFrame;++n)window.requestAnimationFrame=window[t[n]+"RequestAnimationFrame"],window.cancelAnimationFrame=window[t[n]+"CancelAnimationFrame"]||window[t[n]+"CancelRequestAnimationFrame"];window.requestAnimationFrame||(window.requestAnimationFrame=function(t,n){var o=(new Date).getTime(),i=Math.max(0,16-(o-e)),a=window.setTimeout((function(){t(o+i)}),i);return e=o+i,a}),window.cancelAnimationFrame||(window.cancelAnimationFrame=function(e){clearTimeout(e)})})(),(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t="querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype,n={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},o=function(){for(var e={},t=0;t<arguments.length;t++)!(function(t){for(var n in t)t.hasOwnProperty(n)&&(e[n]=t[n])})(arguments[t]);return e},i=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)},a=function(t){return parseInt(e.getComputedStyle(t).height,10)},r=function(e){var t;try{t=decodeURIComponent(e)}catch(n){t=e}return t},u=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,i=-1,a="",r=n.charCodeAt(0);++i<o;){if(0===(t=n.charCodeAt(i)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===i&&t>=48&&t<=57||1===i&&t>=48&&t<=57&&45===r?a+="\\"+t.toString(16)+" ":a+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(i):"\\"+n.charAt(i)}var u;try{u=decodeURIComponent("#"+a)}catch(e){u="#"+a}return u},c=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(e,t,n){var o=0;if(e.offsetParent)do{o+=e.offsetTop,e=e.offsetParent}while(e);return o=Math.max(o-t-n,0)},m=function(e){return e?a(e)+e.offsetTop:0},d=function(t,n,o){o||(t.focus(),document.activeElement.id!==t.id&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},f=function(e,t){history.pushState&&t.updateURL&&history.pushState({smoothScroll:JSON.stringify(t),anchor:e.id},document.title,0===e?"#top":"#"+e.id)},h=function(t,n,o,i){if(i.emitEvents&&"function"==typeof e.CustomEvent){var a=new CustomEvent(t,{bubbles:!0,detail:{anchor:n,toggle:o}});document.dispatchEvent(a)}};return function(a,p){var g,v,w,y,E,b,S,A={};A.cancelScroll=function(e){cancelAnimationFrame(S),S=null,e||h("scrollCancel")},A.animateScroll=function(t,i,a){var r=o(g||n,a||{}),u="[object Number]"===Object.prototype.toString.call(t),p=u||!t.tagName?null:t;if(u||p){var v=e.pageYOffset;r.header&&!y&&(y=document.querySelector(r.header)),E||(E=m(y));var w,b,C,O=u?t:l(p,E,parseInt("function"==typeof r.offset?r.offset():r.offset,10)),I=O-v,q=s(),F=0,L=function(n,o){var a=e.pageYOffset;if(n==o||a==o||(v<o&&e.innerHeight+a)>=q)return A.cancelScroll(!0),d(t,o,u),h("scrollStop",t,i),w=null,S=null,!0},H=function(t){w||(w=t),F+=t-w,b=F/parseInt(r.speed,10),b=b>1?1:b,C=v+I*c(r,b),e.scrollTo(0,Math.floor(C)),L(C,O)||(S=e.requestAnimationFrame(H),w=t)};0===e.pageYOffset&&e.scrollTo(0,0),f(t,r),h("scrollStart",t,i),A.cancelScroll(!0),e.requestAnimationFrame(H)}};var C=function(t){if(!i()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&(w=t.target.closest(a))&&"a"===w.tagName.toLowerCase()&&!t.target.closest(g.ignore)&&w.hostname===e.location.hostname&&w.pathname===e.location.pathname&&/#/.test(w.href)){var n=u(r(w.hash));if(g.topOnEmptyHash&&-1!==["#","#top"].indexOf(n))return t.preventDefault(),void A.animateScroll(0,w);v=document.querySelector(n),v&&(t.preventDefault(),A.animateScroll(v,w))}},O=function(e){if(history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(g)&&history.state.anchor){var t=document.querySelector(u(r(history.state.anchor)));t&&A.animateScroll(t,null,{updateURL:!1})}},I=function(e){b||(b=setTimeout((function(){b=null,E=m(y)}),66))};return A.destroy=function(){g&&(document.removeEventListener("click",C,!1),e.removeEventListener("resize",I,!1),e.removeEventListener("popstate",O,!1),A.cancelScroll(),g=null,v=null,w=null,y=null,E=null,b=null,S=null)},A.init=function(i){t&&(A.destroy(),g=o(n,i||{}),y=g.header?document.querySelector(g.header):null,E=m(y),document.addEventListener("click",C,!1),y&&e.addEventListener("resize",I,!1),g.updateURL&&g.popstate&&e.addEventListener("popstate",O,!1))},A.init(p),A}}));
\ No newline at end of file
diff --git a/docs/index.html b/docs/index.html
index b07ed03..be9ff69 100755
--- a/docs/index.html
+++ b/docs/index.html
@@ -93,27 +93,36 @@ <h1>Smooth Scroll</h1>
 		<!-- Javascript -->
 		<script src="http://github.com/dist/js/smooth-scroll.polyfills.min.js"></script>
 		<script>
-			var scroll = new SmoothScroll('a[href*="#"]', {
 
-			});
-			// var scroll = new SmoothScroll('a[href*="#"]:not([data-easing])');
-
-			// var linear = new SmoothScroll('[data-easing="linear"]', {easing: 'linear'});
-
-			// var easeInQuad = new SmoothScroll('[data-easing="easeInQuad"]', {easing: 'easeInQuad'});
-			// var easeInCubic = new SmoothScroll('[data-easing="easeInCubic"]', {easing: 'easeInCubic'});
-			// var easeInQuart = new SmoothScroll('[data-easing="easeInQuart"]', {easing: 'easeInQuart'});
-			// var easeInQuint = new SmoothScroll('[data-easing="easeInQuint"]', {easing: 'easeInQuint'});
-
-			// var easeInOutQuad = new SmoothScroll('[data-easing="easeInOutQuad"]', {easing: 'easeInOutQuad'});
-			// var easeInOutCubic = new SmoothScroll('[data-easing="easeInOutCubic"]', {easing: 'easeInOutCubic'});
-			// var easeInOutQuart = new SmoothScroll('[data-easing="easeInOutQuart"]', {easing: 'easeInOutQuart'});
-			// var easeInOutQuint = new SmoothScroll('[data-easing="easeInOutQuint"]', {easing: 'easeInOutQuint'});
-
-			// var easeOutQuad = new SmoothScroll('[data-easing="easeOutQuad"]', {easing: 'easeOutQuad'});
-			// var easeOutCubic = new SmoothScroll('[data-easing="easeOutCubic"]', {easing: 'easeOutCubic'});
-			// var easeOutQuart = new SmoothScroll('[data-easing="easeOutQuart"]', {easing: 'easeOutQuart'});
-			// var easeOutQuint = new SmoothScroll('[data-easing="easeOutQuint"]', {easing: 'easeOutQuint'});
+			// Instantiate Scrolls
+			var scroll = new SmoothScroll('a[href*="#"]:not([data-easing])');
+
+			var linear = new SmoothScroll('[data-easing="linear"]', {easing: 'linear'});
+
+			var easeInQuad = new SmoothScroll('[data-easing="easeInQuad"]', {easing: 'easeInQuad'});
+			var easeInCubic = new SmoothScroll('[data-easing="easeInCubic"]', {easing: 'easeInCubic'});
+			var easeInQuart = new SmoothScroll('[data-easing="easeInQuart"]', {easing: 'easeInQuart'});
+			var easeInQuint = new SmoothScroll('[data-easing="easeInQuint"]', {easing: 'easeInQuint'});
+
+			var easeInOutQuad = new SmoothScroll('[data-easing="easeInOutQuad"]', {easing: 'easeInOutQuad'});
+			var easeInOutCubic = new SmoothScroll('[data-easing="easeInOutCubic"]', {easing: 'easeInOutCubic'});
+			var easeInOutQuart = new SmoothScroll('[data-easing="easeInOutQuart"]', {easing: 'easeInOutQuart'});
+			var easeInOutQuint = new SmoothScroll('[data-easing="easeInOutQuint"]', {easing: 'easeInOutQuint'});
+
+			var easeOutQuad = new SmoothScroll('[data-easing="easeOutQuad"]', {easing: 'easeOutQuad'});
+			var easeOutCubic = new SmoothScroll('[data-easing="easeOutCubic"]', {easing: 'easeOutCubic'});
+			var easeOutQuart = new SmoothScroll('[data-easing="easeOutQuart"]', {easing: 'easeOutQuart'});
+			var easeOutQuint = new SmoothScroll('[data-easing="easeOutQuint"]', {easing: 'easeOutQuint'});
+
+			// Log scroll events
+			var logScrollEvent = function (event) {
+				console.log('type:', event.type);
+				console.log('anchor:', event.detail.anchor);
+				console.log('toggle:', event.detail.toggle);
+			};
+			document.addEventListener('scrollStart', logScrollEvent, false);
+			document.addEventListener('scrollStop', logScrollEvent, false);
+			document.addEventListener('scrollCancel', logScrollEvent, false);
 		</script>
 
 
diff --git a/src/docs/_templates/_footer.html b/src/docs/_templates/_footer.html
index 2f84278..7d5455d 100755
--- a/src/docs/_templates/_footer.html
+++ b/src/docs/_templates/_footer.html
@@ -5,27 +5,36 @@
 		<!-- Javascript -->
 		<script src="http://github.com/dist/js/smooth-scroll.polyfills.min.js"></script>
 		<script>
-			var scroll = new SmoothScroll('a[href*="#"]', {
 
-			});
-			// var scroll = new SmoothScroll('a[href*="#"]:not([data-easing])');
-
-			// var linear = new SmoothScroll('[data-easing="linear"]', {easing: 'linear'});
-
-			// var easeInQuad = new SmoothScroll('[data-easing="easeInQuad"]', {easing: 'easeInQuad'});
-			// var easeInCubic = new SmoothScroll('[data-easing="easeInCubic"]', {easing: 'easeInCubic'});
-			// var easeInQuart = new SmoothScroll('[data-easing="easeInQuart"]', {easing: 'easeInQuart'});
-			// var easeInQuint = new SmoothScroll('[data-easing="easeInQuint"]', {easing: 'easeInQuint'});
-
-			// var easeInOutQuad = new SmoothScroll('[data-easing="easeInOutQuad"]', {easing: 'easeInOutQuad'});
-			// var easeInOutCubic = new SmoothScroll('[data-easing="easeInOutCubic"]', {easing: 'easeInOutCubic'});
-			// var easeInOutQuart = new SmoothScroll('[data-easing="easeInOutQuart"]', {easing: 'easeInOutQuart'});
-			// var easeInOutQuint = new SmoothScroll('[data-easing="easeInOutQuint"]', {easing: 'easeInOutQuint'});
-
-			// var easeOutQuad = new SmoothScroll('[data-easing="easeOutQuad"]', {easing: 'easeOutQuad'});
-			// var easeOutCubic = new SmoothScroll('[data-easing="easeOutCubic"]', {easing: 'easeOutCubic'});
-			// var easeOutQuart = new SmoothScroll('[data-easing="easeOutQuart"]', {easing: 'easeOutQuart'});
-			// var easeOutQuint = new SmoothScroll('[data-easing="easeOutQuint"]', {easing: 'easeOutQuint'});
+			// Instantiate Scrolls
+			var scroll = new SmoothScroll('a[href*="#"]:not([data-easing])');
+
+			var linear = new SmoothScroll('[data-easing="linear"]', {easing: 'linear'});
+
+			var easeInQuad = new SmoothScroll('[data-easing="easeInQuad"]', {easing: 'easeInQuad'});
+			var easeInCubic = new SmoothScroll('[data-easing="easeInCubic"]', {easing: 'easeInCubic'});
+			var easeInQuart = new SmoothScroll('[data-easing="easeInQuart"]', {easing: 'easeInQuart'});
+			var easeInQuint = new SmoothScroll('[data-easing="easeInQuint"]', {easing: 'easeInQuint'});
+
+			var easeInOutQuad = new SmoothScroll('[data-easing="easeInOutQuad"]', {easing: 'easeInOutQuad'});
+			var easeInOutCubic = new SmoothScroll('[data-easing="easeInOutCubic"]', {easing: 'easeInOutCubic'});
+			var easeInOutQuart = new SmoothScroll('[data-easing="easeInOutQuart"]', {easing: 'easeInOutQuart'});
+			var easeInOutQuint = new SmoothScroll('[data-easing="easeInOutQuint"]', {easing: 'easeInOutQuint'});
+
+			var easeOutQuad = new SmoothScroll('[data-easing="easeOutQuad"]', {easing: 'easeOutQuad'});
+			var easeOutCubic = new SmoothScroll('[data-easing="easeOutCubic"]', {easing: 'easeOutCubic'});
+			var easeOutQuart = new SmoothScroll('[data-easing="easeOutQuart"]', {easing: 'easeOutQuart'});
+			var easeOutQuint = new SmoothScroll('[data-easing="easeOutQuint"]', {easing: 'easeOutQuint'});
+
+			// Log scroll events
+			var logScrollEvent = function (event) {
+				console.log('type:', event.type);
+				console.log('anchor:', event.detail.anchor);
+				console.log('toggle:', event.detail.toggle);
+			};
+			document.addEventListener('scrollStart', logScrollEvent, false);
+			document.addEventListener('scrollStop', logScrollEvent, false);
+			document.addEventListener('scrollCancel', logScrollEvent, false);
 		</script>
 
 
diff --git a/src/js/_customEvent.polyfill.js b/src/js/_customEvent.polyfill.js
new file mode 100644
index 0000000..4e7a110
--- /dev/null
+++ b/src/js/_customEvent.polyfill.js
@@ -0,0 +1,19 @@
+/**
+ * CustomEvent() polyfill
+ * https://developer.mozilla.org/en-US/docs/Web/API/CustomEvent/CustomEvent#Polyfill
+ */
+(function () {
+
+	if (typeof window.CustomEvent === "function") return false;
+
+	function CustomEvent(event, params) {
+		params = params || { bubbles: false, cancelable: false, detail: undefined };
+		var evt = document.createEvent('CustomEvent');
+		evt.initCustomEvent(event, params.bubbles, params.cancelable, params.detail);
+		return evt;
+	}
+
+	CustomEvent.prototype = window.Event.prototype;
+
+	window.CustomEvent = CustomEvent;
+})();
\ No newline at end of file
diff --git a/src/js/smooth-scroll.js b/src/js/smooth-scroll.js
index f9b751d..555dc38 100755
--- a/src/js/smooth-scroll.js
+++ b/src/js/smooth-scroll.js
@@ -43,9 +43,8 @@
 		updateURL: true,
 		popstate: true,
 
-		// Callback API
-		before: function () {},
-		after: function () {}
+		// Custom Events
+		emitEvents: true
 	};
 
 
@@ -294,6 +293,11 @@
 
 	};
 
+	/**
+	 * Update the URL
+	 * @param  {Node}   anchor  The anchor that was scrolled to
+	 * @param  {Object} options Settings for Smooth Scroll
+	 */
 	var updateURL = function (anchor, options) {
 
 		// Verify that pushState is supported and the updateURL option is enabled
@@ -311,6 +315,24 @@
 
 	};
 
+	/**
+	 * Emit a custom event
+	 * @todo  feature test before emitting
+	 * @todo  make optional with a setting
+	 * @param  {String} type The event type
+	 */
+	var emitEvent = function (type, anchor, toggle, options) {
+		if (!options.emitEvents || typeof window.CustomEvent !== 'function') return;
+		var event = new CustomEvent(type, {
+			bubbles: true,
+			detail: {
+				anchor: anchor,
+				toggle: toggle
+			}
+		});
+		document.dispatchEvent(event);
+	};
+
 
 	//
 	// SmoothScroll Constructor
@@ -333,9 +355,11 @@
 		/**
 		 * Cancel a scroll-in-progress
 		 */
-		smoothScroll.cancelScroll = function () {
+		smoothScroll.cancelScroll = function (noEvent) {
 			cancelAnimationFrame(animationInterval);
 			animationInterval = null;
+			if (noEvent) return;
+			emitEvent('scrollCancel');
 		};
 
 		/**
@@ -383,13 +407,13 @@
 				if (position == endLocation || currentLocation == endLocation || ((startLocation < endLocation && window.innerHeight + currentLocation) >= documentHeight)) {
 
 					// Clear the animation timer
-					smoothScroll.cancelScroll();
+					smoothScroll.cancelScroll(true);
 
 					// Bring the anchored element into focus
 					adjustFocus(anchor, endLocation, isNum);
 
-					// Run callback after animation complete
-					animateSettings.after(anchor, toggle);
+					// Emit a custom event
+					emitEvent('scrollStop', anchor, toggle);
 
 					// Reset start
 					start = null;
@@ -424,14 +448,14 @@
 				window.scrollTo(0, 0);
 			}
 
-			// Run callback before animation starts
-			animateSettings.before(anchor, toggle);
-
 			// Update the URL
 			updateURL(anchor, animateSettings);
 
+			// Emit a custom event
+			emitEvent('scrollStart', anchor, toggle);
+
 			// Start scrolling animation
-			smoothScroll.cancelScroll();
+			smoothScroll.cancelScroll(true);
 			window.requestAnimationFrame(loopAnimateScroll);
 
 		};

From 4c1c7413b7f6901c5ce1ae856fe6e9dc7197d305 Mon Sep 17 00:00:00 2001
From: cferdinandi <chris@gomakethings.com>
Date: Thu, 17 May 2018 20:05:15 -0400
Subject: [PATCH 04/51] pass options into emitEvent method

---
 src/js/smooth-scroll.js | 15 ++++++++-------
 1 file changed, 8 insertions(+), 7 deletions(-)

diff --git a/src/js/smooth-scroll.js b/src/js/smooth-scroll.js
index 555dc38..573f299 100755
--- a/src/js/smooth-scroll.js
+++ b/src/js/smooth-scroll.js
@@ -317,11 +317,12 @@
 
 	/**
 	 * Emit a custom event
-	 * @todo  feature test before emitting
-	 * @todo  make optional with a setting
-	 * @param  {String} type The event type
+	 * @param  {String} type    The event type
+	 * @param  {Object} options The settings object
+	 * @param  {Node}   anchor  The anchor element
+	 * @param  {Node}   toggle  The toggle element
 	 */
-	var emitEvent = function (type, anchor, toggle, options) {
+	var emitEvent = function (type, options, anchor, toggle) {
 		if (!options.emitEvents || typeof window.CustomEvent !== 'function') return;
 		var event = new CustomEvent(type, {
 			bubbles: true,
@@ -359,7 +360,7 @@
 			cancelAnimationFrame(animationInterval);
 			animationInterval = null;
 			if (noEvent) return;
-			emitEvent('scrollCancel');
+			emitEvent('scrollCancel', settings);
 		};
 
 		/**
@@ -413,7 +414,7 @@
 					adjustFocus(anchor, endLocation, isNum);
 
 					// Emit a custom event
-					emitEvent('scrollStop', anchor, toggle);
+					emitEvent('scrollStop', animateSettings, anchor, toggle);
 
 					// Reset start
 					start = null;
@@ -452,7 +453,7 @@
 			updateURL(anchor, animateSettings);
 
 			// Emit a custom event
-			emitEvent('scrollStart', anchor, toggle);
+			emitEvent('scrollStart', animateSettings, anchor, toggle);
 
 			// Start scrolling animation
 			smoothScroll.cancelScroll(true);

From de7d92029836cb5cf8aded94e18e18afd0e3b3ca Mon Sep 17 00:00:00 2001
From: cferdinandi <chris@gomakethings.com>
Date: Thu, 17 May 2018 20:05:33 -0400
Subject: [PATCH 05/51] Pass options into emitEvent method

---
 dist/js/smooth-scroll.js                    | 15 ++++++++-------
 dist/js/smooth-scroll.min.js                |  2 +-
 dist/js/smooth-scroll.polyfills.js          | 15 ++++++++-------
 dist/js/smooth-scroll.polyfills.min.js      |  2 +-
 docs/dist/js/smooth-scroll.js               | 15 ++++++++-------
 docs/dist/js/smooth-scroll.min.js           |  2 +-
 docs/dist/js/smooth-scroll.polyfills.js     | 15 ++++++++-------
 docs/dist/js/smooth-scroll.polyfills.min.js |  2 +-
 8 files changed, 36 insertions(+), 32 deletions(-)

diff --git a/dist/js/smooth-scroll.js b/dist/js/smooth-scroll.js
index 3c57b41..d352bf7 100755
--- a/dist/js/smooth-scroll.js
+++ b/dist/js/smooth-scroll.js
@@ -324,11 +324,12 @@
 
 	/**
 	 * Emit a custom event
-	 * @todo  feature test before emitting
-	 * @todo  make optional with a setting
-	 * @param  {String} type The event type
+	 * @param  {String} type    The event type
+	 * @param  {Object} options The settings object
+	 * @param  {Node}   anchor  The anchor element
+	 * @param  {Node}   toggle  The toggle element
 	 */
-	var emitEvent = function (type, anchor, toggle, options) {
+	var emitEvent = function (type, options, anchor, toggle) {
 		if (!options.emitEvents || typeof window.CustomEvent !== 'function') return;
 		var event = new CustomEvent(type, {
 			bubbles: true,
@@ -366,7 +367,7 @@
 			cancelAnimationFrame(animationInterval);
 			animationInterval = null;
 			if (noEvent) return;
-			emitEvent('scrollCancel');
+			emitEvent('scrollCancel', settings);
 		};
 
 		/**
@@ -420,7 +421,7 @@
 					adjustFocus(anchor, endLocation, isNum);
 
 					// Emit a custom event
-					emitEvent('scrollStop', anchor, toggle);
+					emitEvent('scrollStop', animateSettings, anchor, toggle);
 
 					// Reset start
 					start = null;
@@ -459,7 +460,7 @@
 			updateURL(anchor, animateSettings);
 
 			// Emit a custom event
-			emitEvent('scrollStart', anchor, toggle);
+			emitEvent('scrollStart', animateSettings, anchor, toggle);
 
 			// Start scrolling animation
 			smoothScroll.cancelScroll(true);
diff --git a/dist/js/smooth-scroll.min.js b/dist/js/smooth-scroll.min.js
index f4279e6..6638cc4 100755
--- a/dist/js/smooth-scroll.min.js
+++ b/dist/js/smooth-scroll.min.js
@@ -1,2 +1,2 @@
 /*! smooth-scroll v14.0.0 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
-!(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t="querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype,n={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},o=function(){for(var e={},t=0;t<arguments.length;t++)!(function(t){for(var n in t)t.hasOwnProperty(n)&&(e[n]=t[n])})(arguments[t]);return e},r=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)},a=function(t){return parseInt(e.getComputedStyle(t).height,10)},i=function(e){var t;try{t=decodeURIComponent(e)}catch(n){t=e}return t},u=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,r=-1,a="",i=n.charCodeAt(0);++r<o;){if(0===(t=n.charCodeAt(r)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===r&&t>=48&&t<=57||1===r&&t>=48&&t<=57&&45===i?a+="\\"+t.toString(16)+" ":a+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(r):"\\"+n.charAt(r)}var u;try{u=decodeURIComponent("#"+a)}catch(e){u="#"+a}return u},c=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(e,t,n){var o=0;if(e.offsetParent)do{o+=e.offsetTop,e=e.offsetParent}while(e);return o=Math.max(o-t-n,0)},f=function(e){return e?a(e)+e.offsetTop:0},d=function(t,n,o){o||(t.focus(),document.activeElement.id!==t.id&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},m=function(e,t){history.pushState&&t.updateURL&&history.pushState({smoothScroll:JSON.stringify(t),anchor:e.id},document.title,0===e?"#top":"#"+e.id)},h=function(t,n,o,r){if(r.emitEvents&&"function"==typeof e.CustomEvent){var a=new CustomEvent(t,{bubbles:!0,detail:{anchor:n,toggle:o}});document.dispatchEvent(a)}};return function(a,p){var g,v,y,S,E,b,O,I={};I.cancelScroll=function(e){cancelAnimationFrame(O),O=null,e||h("scrollCancel")},I.animateScroll=function(t,r,a){var i=o(g||n,a||{}),u="[object Number]"===Object.prototype.toString.call(t),p=u||!t.tagName?null:t;if(u||p){var v=e.pageYOffset;i.header&&!S&&(S=document.querySelector(i.header)),E||(E=f(S));var y,b,C,L=u?t:l(p,E,parseInt("function"==typeof i.offset?i.offset():i.offset,10)),w=L-v,A=s(),H=0,Q=function(n,o){var a=e.pageYOffset;if(n==o||a==o||(v<o&&e.innerHeight+a)>=A)return I.cancelScroll(!0),d(t,o,u),h("scrollStop",t,r),y=null,O=null,!0},q=function(t){y||(y=t),H+=t-y,b=H/parseInt(i.speed,10),b=b>1?1:b,C=v+w*c(i,b),e.scrollTo(0,Math.floor(C)),Q(C,L)||(O=e.requestAnimationFrame(q),y=t)};0===e.pageYOffset&&e.scrollTo(0,0),m(t,i),h("scrollStart",t,r),I.cancelScroll(!0),e.requestAnimationFrame(q)}};var C=function(t){if(!r()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&(y=t.target.closest(a))&&"a"===y.tagName.toLowerCase()&&!t.target.closest(g.ignore)&&y.hostname===e.location.hostname&&y.pathname===e.location.pathname&&/#/.test(y.href)){var n=u(i(y.hash));if(g.topOnEmptyHash&&-1!==["#","#top"].indexOf(n))return t.preventDefault(),void I.animateScroll(0,y);v=document.querySelector(n),v&&(t.preventDefault(),I.animateScroll(v,y))}},L=function(e){if(history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(g)&&history.state.anchor){var t=document.querySelector(u(i(history.state.anchor)));t&&I.animateScroll(t,null,{updateURL:!1})}},w=function(e){b||(b=setTimeout((function(){b=null,E=f(S)}),66))};return I.destroy=function(){g&&(document.removeEventListener("click",C,!1),e.removeEventListener("resize",w,!1),e.removeEventListener("popstate",L,!1),I.cancelScroll(),g=null,v=null,y=null,S=null,E=null,b=null,O=null)},I.init=function(r){t&&(I.destroy(),g=o(n,r||{}),S=g.header?document.querySelector(g.header):null,E=f(S),document.addEventListener("click",C,!1),S&&e.addEventListener("resize",w,!1),g.updateURL&&g.popstate&&e.addEventListener("popstate",L,!1))},I.init(p),I}}));
\ No newline at end of file
+!(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t="querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype,n={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},o=function(){for(var e={},t=0;t<arguments.length;t++)!(function(t){for(var n in t)t.hasOwnProperty(n)&&(e[n]=t[n])})(arguments[t]);return e},r=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)},a=function(t){return parseInt(e.getComputedStyle(t).height,10)},i=function(e){var t;try{t=decodeURIComponent(e)}catch(n){t=e}return t},u=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,r=-1,a="",i=n.charCodeAt(0);++r<o;){if(0===(t=n.charCodeAt(r)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===r&&t>=48&&t<=57||1===r&&t>=48&&t<=57&&45===i?a+="\\"+t.toString(16)+" ":a+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(r):"\\"+n.charAt(r)}var u;try{u=decodeURIComponent("#"+a)}catch(e){u="#"+a}return u},c=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(e,t,n){var o=0;if(e.offsetParent)do{o+=e.offsetTop,e=e.offsetParent}while(e);return o=Math.max(o-t-n,0)},f=function(e){return e?a(e)+e.offsetTop:0},d=function(t,n,o){o||(t.focus(),document.activeElement.id!==t.id&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},m=function(e,t){history.pushState&&t.updateURL&&history.pushState({smoothScroll:JSON.stringify(t),anchor:e.id},document.title,0===e?"#top":"#"+e.id)},h=function(t,n,o,r){if(n.emitEvents&&"function"==typeof e.CustomEvent){var a=new CustomEvent(t,{bubbles:!0,detail:{anchor:o,toggle:r}});document.dispatchEvent(a)}};return function(a,p){var g,v,y,S,E,b,O,I={};I.cancelScroll=function(e){cancelAnimationFrame(O),O=null,e||h("scrollCancel",g)},I.animateScroll=function(t,r,a){var i=o(g||n,a||{}),u="[object Number]"===Object.prototype.toString.call(t),p=u||!t.tagName?null:t;if(u||p){var v=e.pageYOffset;i.header&&!S&&(S=document.querySelector(i.header)),E||(E=f(S));var y,b,C,L=u?t:l(p,E,parseInt("function"==typeof i.offset?i.offset():i.offset,10)),w=L-v,A=s(),H=0,Q=function(n,o){var a=e.pageYOffset;if(n==o||a==o||(v<o&&e.innerHeight+a)>=A)return I.cancelScroll(!0),d(t,o,u),h("scrollStop",i,t,r),y=null,O=null,!0},q=function(t){y||(y=t),H+=t-y,b=H/parseInt(i.speed,10),b=b>1?1:b,C=v+w*c(i,b),e.scrollTo(0,Math.floor(C)),Q(C,L)||(O=e.requestAnimationFrame(q),y=t)};0===e.pageYOffset&&e.scrollTo(0,0),m(t,i),h("scrollStart",i,t,r),I.cancelScroll(!0),e.requestAnimationFrame(q)}};var C=function(t){if(!r()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&(y=t.target.closest(a))&&"a"===y.tagName.toLowerCase()&&!t.target.closest(g.ignore)&&y.hostname===e.location.hostname&&y.pathname===e.location.pathname&&/#/.test(y.href)){var n=u(i(y.hash));if(g.topOnEmptyHash&&-1!==["#","#top"].indexOf(n))return t.preventDefault(),void I.animateScroll(0,y);v=document.querySelector(n),v&&(t.preventDefault(),I.animateScroll(v,y))}},L=function(e){if(history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(g)&&history.state.anchor){var t=document.querySelector(u(i(history.state.anchor)));t&&I.animateScroll(t,null,{updateURL:!1})}},w=function(e){b||(b=setTimeout((function(){b=null,E=f(S)}),66))};return I.destroy=function(){g&&(document.removeEventListener("click",C,!1),e.removeEventListener("resize",w,!1),e.removeEventListener("popstate",L,!1),I.cancelScroll(),g=null,v=null,y=null,S=null,E=null,b=null,O=null)},I.init=function(r){t&&(I.destroy(),g=o(n,r||{}),S=g.header?document.querySelector(g.header):null,E=f(S),document.addEventListener("click",C,!1),S&&e.addEventListener("resize",w,!1),g.updateURL&&g.popstate&&e.addEventListener("popstate",L,!1))},I.init(p),I}}));
\ No newline at end of file
diff --git a/dist/js/smooth-scroll.polyfills.js b/dist/js/smooth-scroll.polyfills.js
index baddb6f..8e0bd7f 100755
--- a/dist/js/smooth-scroll.polyfills.js
+++ b/dist/js/smooth-scroll.polyfills.js
@@ -394,11 +394,12 @@ if (window.Element && !Element.prototype.closest) {
 
 	/**
 	 * Emit a custom event
-	 * @todo  feature test before emitting
-	 * @todo  make optional with a setting
-	 * @param  {String} type The event type
+	 * @param  {String} type    The event type
+	 * @param  {Object} options The settings object
+	 * @param  {Node}   anchor  The anchor element
+	 * @param  {Node}   toggle  The toggle element
 	 */
-	var emitEvent = function (type, anchor, toggle, options) {
+	var emitEvent = function (type, options, anchor, toggle) {
 		if (!options.emitEvents || typeof window.CustomEvent !== 'function') return;
 		var event = new CustomEvent(type, {
 			bubbles: true,
@@ -436,7 +437,7 @@ if (window.Element && !Element.prototype.closest) {
 			cancelAnimationFrame(animationInterval);
 			animationInterval = null;
 			if (noEvent) return;
-			emitEvent('scrollCancel');
+			emitEvent('scrollCancel', settings);
 		};
 
 		/**
@@ -490,7 +491,7 @@ if (window.Element && !Element.prototype.closest) {
 					adjustFocus(anchor, endLocation, isNum);
 
 					// Emit a custom event
-					emitEvent('scrollStop', anchor, toggle);
+					emitEvent('scrollStop', animateSettings, anchor, toggle);
 
 					// Reset start
 					start = null;
@@ -529,7 +530,7 @@ if (window.Element && !Element.prototype.closest) {
 			updateURL(anchor, animateSettings);
 
 			// Emit a custom event
-			emitEvent('scrollStart', anchor, toggle);
+			emitEvent('scrollStart', animateSettings, anchor, toggle);
 
 			// Start scrolling animation
 			smoothScroll.cancelScroll(true);
diff --git a/dist/js/smooth-scroll.polyfills.min.js b/dist/js/smooth-scroll.polyfills.min.js
index 86cbd06..3173c4c 100755
--- a/dist/js/smooth-scroll.polyfills.min.js
+++ b/dist/js/smooth-scroll.polyfills.min.js
@@ -1,2 +1,2 @@
 /*! smooth-scroll v14.0.0 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
-window.Element&&!Element.prototype.closest&&(Element.prototype.closest=function(e){var t,n=(this.document||this.ownerDocument).querySelectorAll(e),o=this;do{for(t=n.length;--t>=0&&n.item(t)!==o;);}while(t<0&&(o=o.parentElement));return o}),(function(){function e(e,t){t=t||{bubbles:!1,cancelable:!1,detail:void 0};var n=document.createEvent("CustomEvent");return n.initCustomEvent(e,t.bubbles,t.cancelable,t.detail),n}if("function"==typeof window.CustomEvent)return!1;e.prototype=window.Event.prototype,window.CustomEvent=e})(),(function(){for(var e=0,t=["ms","moz","webkit","o"],n=0;n<t.length&&!window.requestAnimationFrame;++n)window.requestAnimationFrame=window[t[n]+"RequestAnimationFrame"],window.cancelAnimationFrame=window[t[n]+"CancelAnimationFrame"]||window[t[n]+"CancelRequestAnimationFrame"];window.requestAnimationFrame||(window.requestAnimationFrame=function(t,n){var o=(new Date).getTime(),i=Math.max(0,16-(o-e)),a=window.setTimeout((function(){t(o+i)}),i);return e=o+i,a}),window.cancelAnimationFrame||(window.cancelAnimationFrame=function(e){clearTimeout(e)})})(),(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t="querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype,n={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},o=function(){for(var e={},t=0;t<arguments.length;t++)!(function(t){for(var n in t)t.hasOwnProperty(n)&&(e[n]=t[n])})(arguments[t]);return e},i=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)},a=function(t){return parseInt(e.getComputedStyle(t).height,10)},r=function(e){var t;try{t=decodeURIComponent(e)}catch(n){t=e}return t},u=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,i=-1,a="",r=n.charCodeAt(0);++i<o;){if(0===(t=n.charCodeAt(i)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===i&&t>=48&&t<=57||1===i&&t>=48&&t<=57&&45===r?a+="\\"+t.toString(16)+" ":a+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(i):"\\"+n.charAt(i)}var u;try{u=decodeURIComponent("#"+a)}catch(e){u="#"+a}return u},c=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(e,t,n){var o=0;if(e.offsetParent)do{o+=e.offsetTop,e=e.offsetParent}while(e);return o=Math.max(o-t-n,0)},m=function(e){return e?a(e)+e.offsetTop:0},d=function(t,n,o){o||(t.focus(),document.activeElement.id!==t.id&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},f=function(e,t){history.pushState&&t.updateURL&&history.pushState({smoothScroll:JSON.stringify(t),anchor:e.id},document.title,0===e?"#top":"#"+e.id)},h=function(t,n,o,i){if(i.emitEvents&&"function"==typeof e.CustomEvent){var a=new CustomEvent(t,{bubbles:!0,detail:{anchor:n,toggle:o}});document.dispatchEvent(a)}};return function(a,p){var g,v,w,y,E,b,S,A={};A.cancelScroll=function(e){cancelAnimationFrame(S),S=null,e||h("scrollCancel")},A.animateScroll=function(t,i,a){var r=o(g||n,a||{}),u="[object Number]"===Object.prototype.toString.call(t),p=u||!t.tagName?null:t;if(u||p){var v=e.pageYOffset;r.header&&!y&&(y=document.querySelector(r.header)),E||(E=m(y));var w,b,C,O=u?t:l(p,E,parseInt("function"==typeof r.offset?r.offset():r.offset,10)),I=O-v,q=s(),F=0,L=function(n,o){var a=e.pageYOffset;if(n==o||a==o||(v<o&&e.innerHeight+a)>=q)return A.cancelScroll(!0),d(t,o,u),h("scrollStop",t,i),w=null,S=null,!0},H=function(t){w||(w=t),F+=t-w,b=F/parseInt(r.speed,10),b=b>1?1:b,C=v+I*c(r,b),e.scrollTo(0,Math.floor(C)),L(C,O)||(S=e.requestAnimationFrame(H),w=t)};0===e.pageYOffset&&e.scrollTo(0,0),f(t,r),h("scrollStart",t,i),A.cancelScroll(!0),e.requestAnimationFrame(H)}};var C=function(t){if(!i()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&(w=t.target.closest(a))&&"a"===w.tagName.toLowerCase()&&!t.target.closest(g.ignore)&&w.hostname===e.location.hostname&&w.pathname===e.location.pathname&&/#/.test(w.href)){var n=u(r(w.hash));if(g.topOnEmptyHash&&-1!==["#","#top"].indexOf(n))return t.preventDefault(),void A.animateScroll(0,w);v=document.querySelector(n),v&&(t.preventDefault(),A.animateScroll(v,w))}},O=function(e){if(history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(g)&&history.state.anchor){var t=document.querySelector(u(r(history.state.anchor)));t&&A.animateScroll(t,null,{updateURL:!1})}},I=function(e){b||(b=setTimeout((function(){b=null,E=m(y)}),66))};return A.destroy=function(){g&&(document.removeEventListener("click",C,!1),e.removeEventListener("resize",I,!1),e.removeEventListener("popstate",O,!1),A.cancelScroll(),g=null,v=null,w=null,y=null,E=null,b=null,S=null)},A.init=function(i){t&&(A.destroy(),g=o(n,i||{}),y=g.header?document.querySelector(g.header):null,E=m(y),document.addEventListener("click",C,!1),y&&e.addEventListener("resize",I,!1),g.updateURL&&g.popstate&&e.addEventListener("popstate",O,!1))},A.init(p),A}}));
\ No newline at end of file
+window.Element&&!Element.prototype.closest&&(Element.prototype.closest=function(e){var t,n=(this.document||this.ownerDocument).querySelectorAll(e),o=this;do{for(t=n.length;--t>=0&&n.item(t)!==o;);}while(t<0&&(o=o.parentElement));return o}),(function(){function e(e,t){t=t||{bubbles:!1,cancelable:!1,detail:void 0};var n=document.createEvent("CustomEvent");return n.initCustomEvent(e,t.bubbles,t.cancelable,t.detail),n}if("function"==typeof window.CustomEvent)return!1;e.prototype=window.Event.prototype,window.CustomEvent=e})(),(function(){for(var e=0,t=["ms","moz","webkit","o"],n=0;n<t.length&&!window.requestAnimationFrame;++n)window.requestAnimationFrame=window[t[n]+"RequestAnimationFrame"],window.cancelAnimationFrame=window[t[n]+"CancelAnimationFrame"]||window[t[n]+"CancelRequestAnimationFrame"];window.requestAnimationFrame||(window.requestAnimationFrame=function(t,n){var o=(new Date).getTime(),i=Math.max(0,16-(o-e)),a=window.setTimeout((function(){t(o+i)}),i);return e=o+i,a}),window.cancelAnimationFrame||(window.cancelAnimationFrame=function(e){clearTimeout(e)})})(),(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t="querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype,n={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},o=function(){for(var e={},t=0;t<arguments.length;t++)!(function(t){for(var n in t)t.hasOwnProperty(n)&&(e[n]=t[n])})(arguments[t]);return e},i=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)},a=function(t){return parseInt(e.getComputedStyle(t).height,10)},r=function(e){var t;try{t=decodeURIComponent(e)}catch(n){t=e}return t},u=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,i=-1,a="",r=n.charCodeAt(0);++i<o;){if(0===(t=n.charCodeAt(i)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===i&&t>=48&&t<=57||1===i&&t>=48&&t<=57&&45===r?a+="\\"+t.toString(16)+" ":a+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(i):"\\"+n.charAt(i)}var u;try{u=decodeURIComponent("#"+a)}catch(e){u="#"+a}return u},c=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(e,t,n){var o=0;if(e.offsetParent)do{o+=e.offsetTop,e=e.offsetParent}while(e);return o=Math.max(o-t-n,0)},m=function(e){return e?a(e)+e.offsetTop:0},d=function(t,n,o){o||(t.focus(),document.activeElement.id!==t.id&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},f=function(e,t){history.pushState&&t.updateURL&&history.pushState({smoothScroll:JSON.stringify(t),anchor:e.id},document.title,0===e?"#top":"#"+e.id)},h=function(t,n,o,i){if(n.emitEvents&&"function"==typeof e.CustomEvent){var a=new CustomEvent(t,{bubbles:!0,detail:{anchor:o,toggle:i}});document.dispatchEvent(a)}};return function(a,p){var g,v,w,y,E,b,S,A={};A.cancelScroll=function(e){cancelAnimationFrame(S),S=null,e||h("scrollCancel",g)},A.animateScroll=function(t,i,a){var r=o(g||n,a||{}),u="[object Number]"===Object.prototype.toString.call(t),p=u||!t.tagName?null:t;if(u||p){var v=e.pageYOffset;r.header&&!y&&(y=document.querySelector(r.header)),E||(E=m(y));var w,b,C,O=u?t:l(p,E,parseInt("function"==typeof r.offset?r.offset():r.offset,10)),I=O-v,q=s(),F=0,L=function(n,o){var a=e.pageYOffset;if(n==o||a==o||(v<o&&e.innerHeight+a)>=q)return A.cancelScroll(!0),d(t,o,u),h("scrollStop",r,t,i),w=null,S=null,!0},H=function(t){w||(w=t),F+=t-w,b=F/parseInt(r.speed,10),b=b>1?1:b,C=v+I*c(r,b),e.scrollTo(0,Math.floor(C)),L(C,O)||(S=e.requestAnimationFrame(H),w=t)};0===e.pageYOffset&&e.scrollTo(0,0),f(t,r),h("scrollStart",r,t,i),A.cancelScroll(!0),e.requestAnimationFrame(H)}};var C=function(t){if(!i()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&(w=t.target.closest(a))&&"a"===w.tagName.toLowerCase()&&!t.target.closest(g.ignore)&&w.hostname===e.location.hostname&&w.pathname===e.location.pathname&&/#/.test(w.href)){var n=u(r(w.hash));if(g.topOnEmptyHash&&-1!==["#","#top"].indexOf(n))return t.preventDefault(),void A.animateScroll(0,w);v=document.querySelector(n),v&&(t.preventDefault(),A.animateScroll(v,w))}},O=function(e){if(history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(g)&&history.state.anchor){var t=document.querySelector(u(r(history.state.anchor)));t&&A.animateScroll(t,null,{updateURL:!1})}},I=function(e){b||(b=setTimeout((function(){b=null,E=m(y)}),66))};return A.destroy=function(){g&&(document.removeEventListener("click",C,!1),e.removeEventListener("resize",I,!1),e.removeEventListener("popstate",O,!1),A.cancelScroll(),g=null,v=null,w=null,y=null,E=null,b=null,S=null)},A.init=function(i){t&&(A.destroy(),g=o(n,i||{}),y=g.header?document.querySelector(g.header):null,E=m(y),document.addEventListener("click",C,!1),y&&e.addEventListener("resize",I,!1),g.updateURL&&g.popstate&&e.addEventListener("popstate",O,!1))},A.init(p),A}}));
\ No newline at end of file
diff --git a/docs/dist/js/smooth-scroll.js b/docs/dist/js/smooth-scroll.js
index 3c57b41..d352bf7 100755
--- a/docs/dist/js/smooth-scroll.js
+++ b/docs/dist/js/smooth-scroll.js
@@ -324,11 +324,12 @@
 
 	/**
 	 * Emit a custom event
-	 * @todo  feature test before emitting
-	 * @todo  make optional with a setting
-	 * @param  {String} type The event type
+	 * @param  {String} type    The event type
+	 * @param  {Object} options The settings object
+	 * @param  {Node}   anchor  The anchor element
+	 * @param  {Node}   toggle  The toggle element
 	 */
-	var emitEvent = function (type, anchor, toggle, options) {
+	var emitEvent = function (type, options, anchor, toggle) {
 		if (!options.emitEvents || typeof window.CustomEvent !== 'function') return;
 		var event = new CustomEvent(type, {
 			bubbles: true,
@@ -366,7 +367,7 @@
 			cancelAnimationFrame(animationInterval);
 			animationInterval = null;
 			if (noEvent) return;
-			emitEvent('scrollCancel');
+			emitEvent('scrollCancel', settings);
 		};
 
 		/**
@@ -420,7 +421,7 @@
 					adjustFocus(anchor, endLocation, isNum);
 
 					// Emit a custom event
-					emitEvent('scrollStop', anchor, toggle);
+					emitEvent('scrollStop', animateSettings, anchor, toggle);
 
 					// Reset start
 					start = null;
@@ -459,7 +460,7 @@
 			updateURL(anchor, animateSettings);
 
 			// Emit a custom event
-			emitEvent('scrollStart', anchor, toggle);
+			emitEvent('scrollStart', animateSettings, anchor, toggle);
 
 			// Start scrolling animation
 			smoothScroll.cancelScroll(true);
diff --git a/docs/dist/js/smooth-scroll.min.js b/docs/dist/js/smooth-scroll.min.js
index f4279e6..6638cc4 100755
--- a/docs/dist/js/smooth-scroll.min.js
+++ b/docs/dist/js/smooth-scroll.min.js
@@ -1,2 +1,2 @@
 /*! smooth-scroll v14.0.0 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
-!(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t="querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype,n={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},o=function(){for(var e={},t=0;t<arguments.length;t++)!(function(t){for(var n in t)t.hasOwnProperty(n)&&(e[n]=t[n])})(arguments[t]);return e},r=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)},a=function(t){return parseInt(e.getComputedStyle(t).height,10)},i=function(e){var t;try{t=decodeURIComponent(e)}catch(n){t=e}return t},u=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,r=-1,a="",i=n.charCodeAt(0);++r<o;){if(0===(t=n.charCodeAt(r)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===r&&t>=48&&t<=57||1===r&&t>=48&&t<=57&&45===i?a+="\\"+t.toString(16)+" ":a+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(r):"\\"+n.charAt(r)}var u;try{u=decodeURIComponent("#"+a)}catch(e){u="#"+a}return u},c=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(e,t,n){var o=0;if(e.offsetParent)do{o+=e.offsetTop,e=e.offsetParent}while(e);return o=Math.max(o-t-n,0)},f=function(e){return e?a(e)+e.offsetTop:0},d=function(t,n,o){o||(t.focus(),document.activeElement.id!==t.id&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},m=function(e,t){history.pushState&&t.updateURL&&history.pushState({smoothScroll:JSON.stringify(t),anchor:e.id},document.title,0===e?"#top":"#"+e.id)},h=function(t,n,o,r){if(r.emitEvents&&"function"==typeof e.CustomEvent){var a=new CustomEvent(t,{bubbles:!0,detail:{anchor:n,toggle:o}});document.dispatchEvent(a)}};return function(a,p){var g,v,y,S,E,b,O,I={};I.cancelScroll=function(e){cancelAnimationFrame(O),O=null,e||h("scrollCancel")},I.animateScroll=function(t,r,a){var i=o(g||n,a||{}),u="[object Number]"===Object.prototype.toString.call(t),p=u||!t.tagName?null:t;if(u||p){var v=e.pageYOffset;i.header&&!S&&(S=document.querySelector(i.header)),E||(E=f(S));var y,b,C,L=u?t:l(p,E,parseInt("function"==typeof i.offset?i.offset():i.offset,10)),w=L-v,A=s(),H=0,Q=function(n,o){var a=e.pageYOffset;if(n==o||a==o||(v<o&&e.innerHeight+a)>=A)return I.cancelScroll(!0),d(t,o,u),h("scrollStop",t,r),y=null,O=null,!0},q=function(t){y||(y=t),H+=t-y,b=H/parseInt(i.speed,10),b=b>1?1:b,C=v+w*c(i,b),e.scrollTo(0,Math.floor(C)),Q(C,L)||(O=e.requestAnimationFrame(q),y=t)};0===e.pageYOffset&&e.scrollTo(0,0),m(t,i),h("scrollStart",t,r),I.cancelScroll(!0),e.requestAnimationFrame(q)}};var C=function(t){if(!r()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&(y=t.target.closest(a))&&"a"===y.tagName.toLowerCase()&&!t.target.closest(g.ignore)&&y.hostname===e.location.hostname&&y.pathname===e.location.pathname&&/#/.test(y.href)){var n=u(i(y.hash));if(g.topOnEmptyHash&&-1!==["#","#top"].indexOf(n))return t.preventDefault(),void I.animateScroll(0,y);v=document.querySelector(n),v&&(t.preventDefault(),I.animateScroll(v,y))}},L=function(e){if(history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(g)&&history.state.anchor){var t=document.querySelector(u(i(history.state.anchor)));t&&I.animateScroll(t,null,{updateURL:!1})}},w=function(e){b||(b=setTimeout((function(){b=null,E=f(S)}),66))};return I.destroy=function(){g&&(document.removeEventListener("click",C,!1),e.removeEventListener("resize",w,!1),e.removeEventListener("popstate",L,!1),I.cancelScroll(),g=null,v=null,y=null,S=null,E=null,b=null,O=null)},I.init=function(r){t&&(I.destroy(),g=o(n,r||{}),S=g.header?document.querySelector(g.header):null,E=f(S),document.addEventListener("click",C,!1),S&&e.addEventListener("resize",w,!1),g.updateURL&&g.popstate&&e.addEventListener("popstate",L,!1))},I.init(p),I}}));
\ No newline at end of file
+!(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t="querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype,n={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},o=function(){for(var e={},t=0;t<arguments.length;t++)!(function(t){for(var n in t)t.hasOwnProperty(n)&&(e[n]=t[n])})(arguments[t]);return e},r=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)},a=function(t){return parseInt(e.getComputedStyle(t).height,10)},i=function(e){var t;try{t=decodeURIComponent(e)}catch(n){t=e}return t},u=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,r=-1,a="",i=n.charCodeAt(0);++r<o;){if(0===(t=n.charCodeAt(r)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===r&&t>=48&&t<=57||1===r&&t>=48&&t<=57&&45===i?a+="\\"+t.toString(16)+" ":a+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(r):"\\"+n.charAt(r)}var u;try{u=decodeURIComponent("#"+a)}catch(e){u="#"+a}return u},c=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(e,t,n){var o=0;if(e.offsetParent)do{o+=e.offsetTop,e=e.offsetParent}while(e);return o=Math.max(o-t-n,0)},f=function(e){return e?a(e)+e.offsetTop:0},d=function(t,n,o){o||(t.focus(),document.activeElement.id!==t.id&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},m=function(e,t){history.pushState&&t.updateURL&&history.pushState({smoothScroll:JSON.stringify(t),anchor:e.id},document.title,0===e?"#top":"#"+e.id)},h=function(t,n,o,r){if(n.emitEvents&&"function"==typeof e.CustomEvent){var a=new CustomEvent(t,{bubbles:!0,detail:{anchor:o,toggle:r}});document.dispatchEvent(a)}};return function(a,p){var g,v,y,S,E,b,O,I={};I.cancelScroll=function(e){cancelAnimationFrame(O),O=null,e||h("scrollCancel",g)},I.animateScroll=function(t,r,a){var i=o(g||n,a||{}),u="[object Number]"===Object.prototype.toString.call(t),p=u||!t.tagName?null:t;if(u||p){var v=e.pageYOffset;i.header&&!S&&(S=document.querySelector(i.header)),E||(E=f(S));var y,b,C,L=u?t:l(p,E,parseInt("function"==typeof i.offset?i.offset():i.offset,10)),w=L-v,A=s(),H=0,Q=function(n,o){var a=e.pageYOffset;if(n==o||a==o||(v<o&&e.innerHeight+a)>=A)return I.cancelScroll(!0),d(t,o,u),h("scrollStop",i,t,r),y=null,O=null,!0},q=function(t){y||(y=t),H+=t-y,b=H/parseInt(i.speed,10),b=b>1?1:b,C=v+w*c(i,b),e.scrollTo(0,Math.floor(C)),Q(C,L)||(O=e.requestAnimationFrame(q),y=t)};0===e.pageYOffset&&e.scrollTo(0,0),m(t,i),h("scrollStart",i,t,r),I.cancelScroll(!0),e.requestAnimationFrame(q)}};var C=function(t){if(!r()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&(y=t.target.closest(a))&&"a"===y.tagName.toLowerCase()&&!t.target.closest(g.ignore)&&y.hostname===e.location.hostname&&y.pathname===e.location.pathname&&/#/.test(y.href)){var n=u(i(y.hash));if(g.topOnEmptyHash&&-1!==["#","#top"].indexOf(n))return t.preventDefault(),void I.animateScroll(0,y);v=document.querySelector(n),v&&(t.preventDefault(),I.animateScroll(v,y))}},L=function(e){if(history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(g)&&history.state.anchor){var t=document.querySelector(u(i(history.state.anchor)));t&&I.animateScroll(t,null,{updateURL:!1})}},w=function(e){b||(b=setTimeout((function(){b=null,E=f(S)}),66))};return I.destroy=function(){g&&(document.removeEventListener("click",C,!1),e.removeEventListener("resize",w,!1),e.removeEventListener("popstate",L,!1),I.cancelScroll(),g=null,v=null,y=null,S=null,E=null,b=null,O=null)},I.init=function(r){t&&(I.destroy(),g=o(n,r||{}),S=g.header?document.querySelector(g.header):null,E=f(S),document.addEventListener("click",C,!1),S&&e.addEventListener("resize",w,!1),g.updateURL&&g.popstate&&e.addEventListener("popstate",L,!1))},I.init(p),I}}));
\ No newline at end of file
diff --git a/docs/dist/js/smooth-scroll.polyfills.js b/docs/dist/js/smooth-scroll.polyfills.js
index baddb6f..8e0bd7f 100755
--- a/docs/dist/js/smooth-scroll.polyfills.js
+++ b/docs/dist/js/smooth-scroll.polyfills.js
@@ -394,11 +394,12 @@ if (window.Element && !Element.prototype.closest) {
 
 	/**
 	 * Emit a custom event
-	 * @todo  feature test before emitting
-	 * @todo  make optional with a setting
-	 * @param  {String} type The event type
+	 * @param  {String} type    The event type
+	 * @param  {Object} options The settings object
+	 * @param  {Node}   anchor  The anchor element
+	 * @param  {Node}   toggle  The toggle element
 	 */
-	var emitEvent = function (type, anchor, toggle, options) {
+	var emitEvent = function (type, options, anchor, toggle) {
 		if (!options.emitEvents || typeof window.CustomEvent !== 'function') return;
 		var event = new CustomEvent(type, {
 			bubbles: true,
@@ -436,7 +437,7 @@ if (window.Element && !Element.prototype.closest) {
 			cancelAnimationFrame(animationInterval);
 			animationInterval = null;
 			if (noEvent) return;
-			emitEvent('scrollCancel');
+			emitEvent('scrollCancel', settings);
 		};
 
 		/**
@@ -490,7 +491,7 @@ if (window.Element && !Element.prototype.closest) {
 					adjustFocus(anchor, endLocation, isNum);
 
 					// Emit a custom event
-					emitEvent('scrollStop', anchor, toggle);
+					emitEvent('scrollStop', animateSettings, anchor, toggle);
 
 					// Reset start
 					start = null;
@@ -529,7 +530,7 @@ if (window.Element && !Element.prototype.closest) {
 			updateURL(anchor, animateSettings);
 
 			// Emit a custom event
-			emitEvent('scrollStart', anchor, toggle);
+			emitEvent('scrollStart', animateSettings, anchor, toggle);
 
 			// Start scrolling animation
 			smoothScroll.cancelScroll(true);
diff --git a/docs/dist/js/smooth-scroll.polyfills.min.js b/docs/dist/js/smooth-scroll.polyfills.min.js
index 86cbd06..3173c4c 100755
--- a/docs/dist/js/smooth-scroll.polyfills.min.js
+++ b/docs/dist/js/smooth-scroll.polyfills.min.js
@@ -1,2 +1,2 @@
 /*! smooth-scroll v14.0.0 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
-window.Element&&!Element.prototype.closest&&(Element.prototype.closest=function(e){var t,n=(this.document||this.ownerDocument).querySelectorAll(e),o=this;do{for(t=n.length;--t>=0&&n.item(t)!==o;);}while(t<0&&(o=o.parentElement));return o}),(function(){function e(e,t){t=t||{bubbles:!1,cancelable:!1,detail:void 0};var n=document.createEvent("CustomEvent");return n.initCustomEvent(e,t.bubbles,t.cancelable,t.detail),n}if("function"==typeof window.CustomEvent)return!1;e.prototype=window.Event.prototype,window.CustomEvent=e})(),(function(){for(var e=0,t=["ms","moz","webkit","o"],n=0;n<t.length&&!window.requestAnimationFrame;++n)window.requestAnimationFrame=window[t[n]+"RequestAnimationFrame"],window.cancelAnimationFrame=window[t[n]+"CancelAnimationFrame"]||window[t[n]+"CancelRequestAnimationFrame"];window.requestAnimationFrame||(window.requestAnimationFrame=function(t,n){var o=(new Date).getTime(),i=Math.max(0,16-(o-e)),a=window.setTimeout((function(){t(o+i)}),i);return e=o+i,a}),window.cancelAnimationFrame||(window.cancelAnimationFrame=function(e){clearTimeout(e)})})(),(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t="querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype,n={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},o=function(){for(var e={},t=0;t<arguments.length;t++)!(function(t){for(var n in t)t.hasOwnProperty(n)&&(e[n]=t[n])})(arguments[t]);return e},i=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)},a=function(t){return parseInt(e.getComputedStyle(t).height,10)},r=function(e){var t;try{t=decodeURIComponent(e)}catch(n){t=e}return t},u=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,i=-1,a="",r=n.charCodeAt(0);++i<o;){if(0===(t=n.charCodeAt(i)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===i&&t>=48&&t<=57||1===i&&t>=48&&t<=57&&45===r?a+="\\"+t.toString(16)+" ":a+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(i):"\\"+n.charAt(i)}var u;try{u=decodeURIComponent("#"+a)}catch(e){u="#"+a}return u},c=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(e,t,n){var o=0;if(e.offsetParent)do{o+=e.offsetTop,e=e.offsetParent}while(e);return o=Math.max(o-t-n,0)},m=function(e){return e?a(e)+e.offsetTop:0},d=function(t,n,o){o||(t.focus(),document.activeElement.id!==t.id&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},f=function(e,t){history.pushState&&t.updateURL&&history.pushState({smoothScroll:JSON.stringify(t),anchor:e.id},document.title,0===e?"#top":"#"+e.id)},h=function(t,n,o,i){if(i.emitEvents&&"function"==typeof e.CustomEvent){var a=new CustomEvent(t,{bubbles:!0,detail:{anchor:n,toggle:o}});document.dispatchEvent(a)}};return function(a,p){var g,v,w,y,E,b,S,A={};A.cancelScroll=function(e){cancelAnimationFrame(S),S=null,e||h("scrollCancel")},A.animateScroll=function(t,i,a){var r=o(g||n,a||{}),u="[object Number]"===Object.prototype.toString.call(t),p=u||!t.tagName?null:t;if(u||p){var v=e.pageYOffset;r.header&&!y&&(y=document.querySelector(r.header)),E||(E=m(y));var w,b,C,O=u?t:l(p,E,parseInt("function"==typeof r.offset?r.offset():r.offset,10)),I=O-v,q=s(),F=0,L=function(n,o){var a=e.pageYOffset;if(n==o||a==o||(v<o&&e.innerHeight+a)>=q)return A.cancelScroll(!0),d(t,o,u),h("scrollStop",t,i),w=null,S=null,!0},H=function(t){w||(w=t),F+=t-w,b=F/parseInt(r.speed,10),b=b>1?1:b,C=v+I*c(r,b),e.scrollTo(0,Math.floor(C)),L(C,O)||(S=e.requestAnimationFrame(H),w=t)};0===e.pageYOffset&&e.scrollTo(0,0),f(t,r),h("scrollStart",t,i),A.cancelScroll(!0),e.requestAnimationFrame(H)}};var C=function(t){if(!i()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&(w=t.target.closest(a))&&"a"===w.tagName.toLowerCase()&&!t.target.closest(g.ignore)&&w.hostname===e.location.hostname&&w.pathname===e.location.pathname&&/#/.test(w.href)){var n=u(r(w.hash));if(g.topOnEmptyHash&&-1!==["#","#top"].indexOf(n))return t.preventDefault(),void A.animateScroll(0,w);v=document.querySelector(n),v&&(t.preventDefault(),A.animateScroll(v,w))}},O=function(e){if(history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(g)&&history.state.anchor){var t=document.querySelector(u(r(history.state.anchor)));t&&A.animateScroll(t,null,{updateURL:!1})}},I=function(e){b||(b=setTimeout((function(){b=null,E=m(y)}),66))};return A.destroy=function(){g&&(document.removeEventListener("click",C,!1),e.removeEventListener("resize",I,!1),e.removeEventListener("popstate",O,!1),A.cancelScroll(),g=null,v=null,w=null,y=null,E=null,b=null,S=null)},A.init=function(i){t&&(A.destroy(),g=o(n,i||{}),y=g.header?document.querySelector(g.header):null,E=m(y),document.addEventListener("click",C,!1),y&&e.addEventListener("resize",I,!1),g.updateURL&&g.popstate&&e.addEventListener("popstate",O,!1))},A.init(p),A}}));
\ No newline at end of file
+window.Element&&!Element.prototype.closest&&(Element.prototype.closest=function(e){var t,n=(this.document||this.ownerDocument).querySelectorAll(e),o=this;do{for(t=n.length;--t>=0&&n.item(t)!==o;);}while(t<0&&(o=o.parentElement));return o}),(function(){function e(e,t){t=t||{bubbles:!1,cancelable:!1,detail:void 0};var n=document.createEvent("CustomEvent");return n.initCustomEvent(e,t.bubbles,t.cancelable,t.detail),n}if("function"==typeof window.CustomEvent)return!1;e.prototype=window.Event.prototype,window.CustomEvent=e})(),(function(){for(var e=0,t=["ms","moz","webkit","o"],n=0;n<t.length&&!window.requestAnimationFrame;++n)window.requestAnimationFrame=window[t[n]+"RequestAnimationFrame"],window.cancelAnimationFrame=window[t[n]+"CancelAnimationFrame"]||window[t[n]+"CancelRequestAnimationFrame"];window.requestAnimationFrame||(window.requestAnimationFrame=function(t,n){var o=(new Date).getTime(),i=Math.max(0,16-(o-e)),a=window.setTimeout((function(){t(o+i)}),i);return e=o+i,a}),window.cancelAnimationFrame||(window.cancelAnimationFrame=function(e){clearTimeout(e)})})(),(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t="querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype,n={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},o=function(){for(var e={},t=0;t<arguments.length;t++)!(function(t){for(var n in t)t.hasOwnProperty(n)&&(e[n]=t[n])})(arguments[t]);return e},i=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)},a=function(t){return parseInt(e.getComputedStyle(t).height,10)},r=function(e){var t;try{t=decodeURIComponent(e)}catch(n){t=e}return t},u=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,i=-1,a="",r=n.charCodeAt(0);++i<o;){if(0===(t=n.charCodeAt(i)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===i&&t>=48&&t<=57||1===i&&t>=48&&t<=57&&45===r?a+="\\"+t.toString(16)+" ":a+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(i):"\\"+n.charAt(i)}var u;try{u=decodeURIComponent("#"+a)}catch(e){u="#"+a}return u},c=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(e,t,n){var o=0;if(e.offsetParent)do{o+=e.offsetTop,e=e.offsetParent}while(e);return o=Math.max(o-t-n,0)},m=function(e){return e?a(e)+e.offsetTop:0},d=function(t,n,o){o||(t.focus(),document.activeElement.id!==t.id&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},f=function(e,t){history.pushState&&t.updateURL&&history.pushState({smoothScroll:JSON.stringify(t),anchor:e.id},document.title,0===e?"#top":"#"+e.id)},h=function(t,n,o,i){if(n.emitEvents&&"function"==typeof e.CustomEvent){var a=new CustomEvent(t,{bubbles:!0,detail:{anchor:o,toggle:i}});document.dispatchEvent(a)}};return function(a,p){var g,v,w,y,E,b,S,A={};A.cancelScroll=function(e){cancelAnimationFrame(S),S=null,e||h("scrollCancel",g)},A.animateScroll=function(t,i,a){var r=o(g||n,a||{}),u="[object Number]"===Object.prototype.toString.call(t),p=u||!t.tagName?null:t;if(u||p){var v=e.pageYOffset;r.header&&!y&&(y=document.querySelector(r.header)),E||(E=m(y));var w,b,C,O=u?t:l(p,E,parseInt("function"==typeof r.offset?r.offset():r.offset,10)),I=O-v,q=s(),F=0,L=function(n,o){var a=e.pageYOffset;if(n==o||a==o||(v<o&&e.innerHeight+a)>=q)return A.cancelScroll(!0),d(t,o,u),h("scrollStop",r,t,i),w=null,S=null,!0},H=function(t){w||(w=t),F+=t-w,b=F/parseInt(r.speed,10),b=b>1?1:b,C=v+I*c(r,b),e.scrollTo(0,Math.floor(C)),L(C,O)||(S=e.requestAnimationFrame(H),w=t)};0===e.pageYOffset&&e.scrollTo(0,0),f(t,r),h("scrollStart",r,t,i),A.cancelScroll(!0),e.requestAnimationFrame(H)}};var C=function(t){if(!i()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&(w=t.target.closest(a))&&"a"===w.tagName.toLowerCase()&&!t.target.closest(g.ignore)&&w.hostname===e.location.hostname&&w.pathname===e.location.pathname&&/#/.test(w.href)){var n=u(r(w.hash));if(g.topOnEmptyHash&&-1!==["#","#top"].indexOf(n))return t.preventDefault(),void A.animateScroll(0,w);v=document.querySelector(n),v&&(t.preventDefault(),A.animateScroll(v,w))}},O=function(e){if(history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(g)&&history.state.anchor){var t=document.querySelector(u(r(history.state.anchor)));t&&A.animateScroll(t,null,{updateURL:!1})}},I=function(e){b||(b=setTimeout((function(){b=null,E=m(y)}),66))};return A.destroy=function(){g&&(document.removeEventListener("click",C,!1),e.removeEventListener("resize",I,!1),e.removeEventListener("popstate",O,!1),A.cancelScroll(),g=null,v=null,w=null,y=null,E=null,b=null,S=null)},A.init=function(i){t&&(A.destroy(),g=o(n,i||{}),y=g.header?document.querySelector(g.header):null,E=m(y),document.addEventListener("click",C,!1),y&&e.addEventListener("resize",I,!1),g.updateURL&&g.popstate&&e.addEventListener("popstate",O,!1))},A.init(p),A}}));
\ No newline at end of file

From 499201267cb4b3c21df52f5ba3fde4ffe77ee823 Mon Sep 17 00:00:00 2001
From: cferdinandi <chris@gomakethings.com>
Date: Thu, 17 May 2018 20:35:32 -0400
Subject: [PATCH 06/51] Moved feature test to a method Fixes
 https://github.com/cferdinandi/smooth-scroll/pull/419

---
 dist/js/smooth-scroll.js                    | 26 +++++++++++----------
 dist/js/smooth-scroll.min.js                |  2 +-
 dist/js/smooth-scroll.polyfills.js          | 26 +++++++++++----------
 dist/js/smooth-scroll.polyfills.min.js      |  2 +-
 docs/dist/js/smooth-scroll.js               | 26 +++++++++++----------
 docs/dist/js/smooth-scroll.min.js           |  2 +-
 docs/dist/js/smooth-scroll.polyfills.js     | 26 +++++++++++----------
 docs/dist/js/smooth-scroll.polyfills.min.js |  2 +-
 src/js/smooth-scroll.js                     | 26 +++++++++++----------
 9 files changed, 74 insertions(+), 64 deletions(-)

diff --git a/dist/js/smooth-scroll.js b/dist/js/smooth-scroll.js
index d352bf7..c0741d2 100755
--- a/dist/js/smooth-scroll.js
+++ b/dist/js/smooth-scroll.js
@@ -19,17 +19,6 @@
 
 	'use strict';
 
-	//
-	// Feature Test
-	//
-
-	var supports =
-		'querySelector' in document &&
-		'addEventListener' in window &&
-		'requestAnimationFrame' in window &&
-		'closest' in window.Element.prototype;
-
-
 	//
 	// Default settings
 	//
@@ -59,6 +48,19 @@
 	// Utility Methods
 	//
 
+	/**
+	 * Check if browser supports required methods
+	 * @return {Boolean} Returns true if all required methods are supported
+	 */
+	var supports = function () {
+		return (
+			'querySelector' in document &&
+			'addEventListener' in window &&
+			'requestAnimationFrame' in window &&
+			'closest' in window.Element.prototype
+		);
+	};
+
 	/**
 	 * Merge two or more objects. Returns a new object.
 	 * @param {Object}   objects  The objects to merge together
@@ -578,7 +580,7 @@
 		smoothScroll.init = function (options) {
 
 			// feature test
-			if (!supports) return;
+			if (!supports()) return;
 
 			// Destroy any existing initializations
 			smoothScroll.destroy();
diff --git a/dist/js/smooth-scroll.min.js b/dist/js/smooth-scroll.min.js
index 6638cc4..9544052 100755
--- a/dist/js/smooth-scroll.min.js
+++ b/dist/js/smooth-scroll.min.js
@@ -1,2 +1,2 @@
 /*! smooth-scroll v14.0.0 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
-!(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t="querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype,n={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},o=function(){for(var e={},t=0;t<arguments.length;t++)!(function(t){for(var n in t)t.hasOwnProperty(n)&&(e[n]=t[n])})(arguments[t]);return e},r=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)},a=function(t){return parseInt(e.getComputedStyle(t).height,10)},i=function(e){var t;try{t=decodeURIComponent(e)}catch(n){t=e}return t},u=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,r=-1,a="",i=n.charCodeAt(0);++r<o;){if(0===(t=n.charCodeAt(r)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===r&&t>=48&&t<=57||1===r&&t>=48&&t<=57&&45===i?a+="\\"+t.toString(16)+" ":a+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(r):"\\"+n.charAt(r)}var u;try{u=decodeURIComponent("#"+a)}catch(e){u="#"+a}return u},c=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(e,t,n){var o=0;if(e.offsetParent)do{o+=e.offsetTop,e=e.offsetParent}while(e);return o=Math.max(o-t-n,0)},f=function(e){return e?a(e)+e.offsetTop:0},d=function(t,n,o){o||(t.focus(),document.activeElement.id!==t.id&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},m=function(e,t){history.pushState&&t.updateURL&&history.pushState({smoothScroll:JSON.stringify(t),anchor:e.id},document.title,0===e?"#top":"#"+e.id)},h=function(t,n,o,r){if(n.emitEvents&&"function"==typeof e.CustomEvent){var a=new CustomEvent(t,{bubbles:!0,detail:{anchor:o,toggle:r}});document.dispatchEvent(a)}};return function(a,p){var g,v,y,S,E,b,O,I={};I.cancelScroll=function(e){cancelAnimationFrame(O),O=null,e||h("scrollCancel",g)},I.animateScroll=function(t,r,a){var i=o(g||n,a||{}),u="[object Number]"===Object.prototype.toString.call(t),p=u||!t.tagName?null:t;if(u||p){var v=e.pageYOffset;i.header&&!S&&(S=document.querySelector(i.header)),E||(E=f(S));var y,b,C,L=u?t:l(p,E,parseInt("function"==typeof i.offset?i.offset():i.offset,10)),w=L-v,A=s(),H=0,Q=function(n,o){var a=e.pageYOffset;if(n==o||a==o||(v<o&&e.innerHeight+a)>=A)return I.cancelScroll(!0),d(t,o,u),h("scrollStop",i,t,r),y=null,O=null,!0},q=function(t){y||(y=t),H+=t-y,b=H/parseInt(i.speed,10),b=b>1?1:b,C=v+w*c(i,b),e.scrollTo(0,Math.floor(C)),Q(C,L)||(O=e.requestAnimationFrame(q),y=t)};0===e.pageYOffset&&e.scrollTo(0,0),m(t,i),h("scrollStart",i,t,r),I.cancelScroll(!0),e.requestAnimationFrame(q)}};var C=function(t){if(!r()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&(y=t.target.closest(a))&&"a"===y.tagName.toLowerCase()&&!t.target.closest(g.ignore)&&y.hostname===e.location.hostname&&y.pathname===e.location.pathname&&/#/.test(y.href)){var n=u(i(y.hash));if(g.topOnEmptyHash&&-1!==["#","#top"].indexOf(n))return t.preventDefault(),void I.animateScroll(0,y);v=document.querySelector(n),v&&(t.preventDefault(),I.animateScroll(v,y))}},L=function(e){if(history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(g)&&history.state.anchor){var t=document.querySelector(u(i(history.state.anchor)));t&&I.animateScroll(t,null,{updateURL:!1})}},w=function(e){b||(b=setTimeout((function(){b=null,E=f(S)}),66))};return I.destroy=function(){g&&(document.removeEventListener("click",C,!1),e.removeEventListener("resize",w,!1),e.removeEventListener("popstate",L,!1),I.cancelScroll(),g=null,v=null,y=null,S=null,E=null,b=null,O=null)},I.init=function(r){t&&(I.destroy(),g=o(n,r||{}),S=g.header?document.querySelector(g.header):null,E=f(S),document.addEventListener("click",C,!1),S&&e.addEventListener("resize",w,!1),g.updateURL&&g.popstate&&e.addEventListener("popstate",L,!1))},I.init(p),I}}));
\ No newline at end of file
+!(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},n=function(){return"querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype},o=function(){for(var e={},t=0;t<arguments.length;t++)!(function(t){for(var n in t)t.hasOwnProperty(n)&&(e[n]=t[n])})(arguments[t]);return e},r=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)},a=function(t){return parseInt(e.getComputedStyle(t).height,10)},i=function(e){var t;try{t=decodeURIComponent(e)}catch(n){t=e}return t},u=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,r=-1,a="",i=n.charCodeAt(0);++r<o;){if(0===(t=n.charCodeAt(r)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===r&&t>=48&&t<=57||1===r&&t>=48&&t<=57&&45===i?a+="\\"+t.toString(16)+" ":a+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(r):"\\"+n.charAt(r)}var u;try{u=decodeURIComponent("#"+a)}catch(e){u="#"+a}return u},c=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(e,t,n){var o=0;if(e.offsetParent)do{o+=e.offsetTop,e=e.offsetParent}while(e);return o=Math.max(o-t-n,0)},f=function(e){return e?a(e)+e.offsetTop:0},d=function(t,n,o){o||(t.focus(),document.activeElement.id!==t.id&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},m=function(e,t){history.pushState&&t.updateURL&&history.pushState({smoothScroll:JSON.stringify(t),anchor:e.id},document.title,0===e?"#top":"#"+e.id)},h=function(t,n,o,r){if(n.emitEvents&&"function"==typeof e.CustomEvent){var a=new CustomEvent(t,{bubbles:!0,detail:{anchor:o,toggle:r}});document.dispatchEvent(a)}};return function(a,p){var g,v,y,S,E,b,O,I={};I.cancelScroll=function(e){cancelAnimationFrame(O),O=null,e||h("scrollCancel",g)},I.animateScroll=function(n,r,a){var i=o(g||t,a||{}),u="[object Number]"===Object.prototype.toString.call(n),p=u||!n.tagName?null:n;if(u||p){var v=e.pageYOffset;i.header&&!S&&(S=document.querySelector(i.header)),E||(E=f(S));var y,b,C,L=u?n:l(p,E,parseInt("function"==typeof i.offset?i.offset():i.offset,10)),w=L-v,A=s(),H=0,Q=function(t,o){var a=e.pageYOffset;if(t==o||a==o||(v<o&&e.innerHeight+a)>=A)return I.cancelScroll(!0),d(n,o,u),h("scrollStop",i,n,r),y=null,O=null,!0},q=function(t){y||(y=t),H+=t-y,b=H/parseInt(i.speed,10),b=b>1?1:b,C=v+w*c(i,b),e.scrollTo(0,Math.floor(C)),Q(C,L)||(O=e.requestAnimationFrame(q),y=t)};0===e.pageYOffset&&e.scrollTo(0,0),m(n,i),h("scrollStart",i,n,r),I.cancelScroll(!0),e.requestAnimationFrame(q)}};var C=function(t){if(!r()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&(y=t.target.closest(a))&&"a"===y.tagName.toLowerCase()&&!t.target.closest(g.ignore)&&y.hostname===e.location.hostname&&y.pathname===e.location.pathname&&/#/.test(y.href)){var n=u(i(y.hash));if(g.topOnEmptyHash&&-1!==["#","#top"].indexOf(n))return t.preventDefault(),void I.animateScroll(0,y);v=document.querySelector(n),v&&(t.preventDefault(),I.animateScroll(v,y))}},L=function(e){if(history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(g)&&history.state.anchor){var t=document.querySelector(u(i(history.state.anchor)));t&&I.animateScroll(t,null,{updateURL:!1})}},w=function(e){b||(b=setTimeout((function(){b=null,E=f(S)}),66))};return I.destroy=function(){g&&(document.removeEventListener("click",C,!1),e.removeEventListener("resize",w,!1),e.removeEventListener("popstate",L,!1),I.cancelScroll(),g=null,v=null,y=null,S=null,E=null,b=null,O=null)},I.init=function(r){n()&&(I.destroy(),g=o(t,r||{}),S=g.header?document.querySelector(g.header):null,E=f(S),document.addEventListener("click",C,!1),S&&e.addEventListener("resize",w,!1),g.updateURL&&g.popstate&&e.addEventListener("popstate",L,!1))},I.init(p),I}}));
\ No newline at end of file
diff --git a/dist/js/smooth-scroll.polyfills.js b/dist/js/smooth-scroll.polyfills.js
index 8e0bd7f..265ad13 100755
--- a/dist/js/smooth-scroll.polyfills.js
+++ b/dist/js/smooth-scroll.polyfills.js
@@ -89,17 +89,6 @@ if (window.Element && !Element.prototype.closest) {
 
 	'use strict';
 
-	//
-	// Feature Test
-	//
-
-	var supports =
-		'querySelector' in document &&
-		'addEventListener' in window &&
-		'requestAnimationFrame' in window &&
-		'closest' in window.Element.prototype;
-
-
 	//
 	// Default settings
 	//
@@ -129,6 +118,19 @@ if (window.Element && !Element.prototype.closest) {
 	// Utility Methods
 	//
 
+	/**
+	 * Check if browser supports required methods
+	 * @return {Boolean} Returns true if all required methods are supported
+	 */
+	var supports = function () {
+		return (
+			'querySelector' in document &&
+			'addEventListener' in window &&
+			'requestAnimationFrame' in window &&
+			'closest' in window.Element.prototype
+		);
+	};
+
 	/**
 	 * Merge two or more objects. Returns a new object.
 	 * @param {Object}   objects  The objects to merge together
@@ -648,7 +650,7 @@ if (window.Element && !Element.prototype.closest) {
 		smoothScroll.init = function (options) {
 
 			// feature test
-			if (!supports) return;
+			if (!supports()) return;
 
 			// Destroy any existing initializations
 			smoothScroll.destroy();
diff --git a/dist/js/smooth-scroll.polyfills.min.js b/dist/js/smooth-scroll.polyfills.min.js
index 3173c4c..46ad04c 100755
--- a/dist/js/smooth-scroll.polyfills.min.js
+++ b/dist/js/smooth-scroll.polyfills.min.js
@@ -1,2 +1,2 @@
 /*! smooth-scroll v14.0.0 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
-window.Element&&!Element.prototype.closest&&(Element.prototype.closest=function(e){var t,n=(this.document||this.ownerDocument).querySelectorAll(e),o=this;do{for(t=n.length;--t>=0&&n.item(t)!==o;);}while(t<0&&(o=o.parentElement));return o}),(function(){function e(e,t){t=t||{bubbles:!1,cancelable:!1,detail:void 0};var n=document.createEvent("CustomEvent");return n.initCustomEvent(e,t.bubbles,t.cancelable,t.detail),n}if("function"==typeof window.CustomEvent)return!1;e.prototype=window.Event.prototype,window.CustomEvent=e})(),(function(){for(var e=0,t=["ms","moz","webkit","o"],n=0;n<t.length&&!window.requestAnimationFrame;++n)window.requestAnimationFrame=window[t[n]+"RequestAnimationFrame"],window.cancelAnimationFrame=window[t[n]+"CancelAnimationFrame"]||window[t[n]+"CancelRequestAnimationFrame"];window.requestAnimationFrame||(window.requestAnimationFrame=function(t,n){var o=(new Date).getTime(),i=Math.max(0,16-(o-e)),a=window.setTimeout((function(){t(o+i)}),i);return e=o+i,a}),window.cancelAnimationFrame||(window.cancelAnimationFrame=function(e){clearTimeout(e)})})(),(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t="querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype,n={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},o=function(){for(var e={},t=0;t<arguments.length;t++)!(function(t){for(var n in t)t.hasOwnProperty(n)&&(e[n]=t[n])})(arguments[t]);return e},i=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)},a=function(t){return parseInt(e.getComputedStyle(t).height,10)},r=function(e){var t;try{t=decodeURIComponent(e)}catch(n){t=e}return t},u=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,i=-1,a="",r=n.charCodeAt(0);++i<o;){if(0===(t=n.charCodeAt(i)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===i&&t>=48&&t<=57||1===i&&t>=48&&t<=57&&45===r?a+="\\"+t.toString(16)+" ":a+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(i):"\\"+n.charAt(i)}var u;try{u=decodeURIComponent("#"+a)}catch(e){u="#"+a}return u},c=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(e,t,n){var o=0;if(e.offsetParent)do{o+=e.offsetTop,e=e.offsetParent}while(e);return o=Math.max(o-t-n,0)},m=function(e){return e?a(e)+e.offsetTop:0},d=function(t,n,o){o||(t.focus(),document.activeElement.id!==t.id&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},f=function(e,t){history.pushState&&t.updateURL&&history.pushState({smoothScroll:JSON.stringify(t),anchor:e.id},document.title,0===e?"#top":"#"+e.id)},h=function(t,n,o,i){if(n.emitEvents&&"function"==typeof e.CustomEvent){var a=new CustomEvent(t,{bubbles:!0,detail:{anchor:o,toggle:i}});document.dispatchEvent(a)}};return function(a,p){var g,v,w,y,E,b,S,A={};A.cancelScroll=function(e){cancelAnimationFrame(S),S=null,e||h("scrollCancel",g)},A.animateScroll=function(t,i,a){var r=o(g||n,a||{}),u="[object Number]"===Object.prototype.toString.call(t),p=u||!t.tagName?null:t;if(u||p){var v=e.pageYOffset;r.header&&!y&&(y=document.querySelector(r.header)),E||(E=m(y));var w,b,C,O=u?t:l(p,E,parseInt("function"==typeof r.offset?r.offset():r.offset,10)),I=O-v,q=s(),F=0,L=function(n,o){var a=e.pageYOffset;if(n==o||a==o||(v<o&&e.innerHeight+a)>=q)return A.cancelScroll(!0),d(t,o,u),h("scrollStop",r,t,i),w=null,S=null,!0},H=function(t){w||(w=t),F+=t-w,b=F/parseInt(r.speed,10),b=b>1?1:b,C=v+I*c(r,b),e.scrollTo(0,Math.floor(C)),L(C,O)||(S=e.requestAnimationFrame(H),w=t)};0===e.pageYOffset&&e.scrollTo(0,0),f(t,r),h("scrollStart",r,t,i),A.cancelScroll(!0),e.requestAnimationFrame(H)}};var C=function(t){if(!i()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&(w=t.target.closest(a))&&"a"===w.tagName.toLowerCase()&&!t.target.closest(g.ignore)&&w.hostname===e.location.hostname&&w.pathname===e.location.pathname&&/#/.test(w.href)){var n=u(r(w.hash));if(g.topOnEmptyHash&&-1!==["#","#top"].indexOf(n))return t.preventDefault(),void A.animateScroll(0,w);v=document.querySelector(n),v&&(t.preventDefault(),A.animateScroll(v,w))}},O=function(e){if(history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(g)&&history.state.anchor){var t=document.querySelector(u(r(history.state.anchor)));t&&A.animateScroll(t,null,{updateURL:!1})}},I=function(e){b||(b=setTimeout((function(){b=null,E=m(y)}),66))};return A.destroy=function(){g&&(document.removeEventListener("click",C,!1),e.removeEventListener("resize",I,!1),e.removeEventListener("popstate",O,!1),A.cancelScroll(),g=null,v=null,w=null,y=null,E=null,b=null,S=null)},A.init=function(i){t&&(A.destroy(),g=o(n,i||{}),y=g.header?document.querySelector(g.header):null,E=m(y),document.addEventListener("click",C,!1),y&&e.addEventListener("resize",I,!1),g.updateURL&&g.popstate&&e.addEventListener("popstate",O,!1))},A.init(p),A}}));
\ No newline at end of file
+window.Element&&!Element.prototype.closest&&(Element.prototype.closest=function(e){var t,n=(this.document||this.ownerDocument).querySelectorAll(e),o=this;do{for(t=n.length;--t>=0&&n.item(t)!==o;);}while(t<0&&(o=o.parentElement));return o}),(function(){function e(e,t){t=t||{bubbles:!1,cancelable:!1,detail:void 0};var n=document.createEvent("CustomEvent");return n.initCustomEvent(e,t.bubbles,t.cancelable,t.detail),n}if("function"==typeof window.CustomEvent)return!1;e.prototype=window.Event.prototype,window.CustomEvent=e})(),(function(){for(var e=0,t=["ms","moz","webkit","o"],n=0;n<t.length&&!window.requestAnimationFrame;++n)window.requestAnimationFrame=window[t[n]+"RequestAnimationFrame"],window.cancelAnimationFrame=window[t[n]+"CancelAnimationFrame"]||window[t[n]+"CancelRequestAnimationFrame"];window.requestAnimationFrame||(window.requestAnimationFrame=function(t,n){var o=(new Date).getTime(),i=Math.max(0,16-(o-e)),r=window.setTimeout((function(){t(o+i)}),i);return e=o+i,r}),window.cancelAnimationFrame||(window.cancelAnimationFrame=function(e){clearTimeout(e)})})(),(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},n=function(){return"querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype},o=function(){for(var e={},t=0;t<arguments.length;t++)!(function(t){for(var n in t)t.hasOwnProperty(n)&&(e[n]=t[n])})(arguments[t]);return e},i=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)},r=function(t){return parseInt(e.getComputedStyle(t).height,10)},a=function(e){var t;try{t=decodeURIComponent(e)}catch(n){t=e}return t},u=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,i=-1,r="",a=n.charCodeAt(0);++i<o;){if(0===(t=n.charCodeAt(i)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===i&&t>=48&&t<=57||1===i&&t>=48&&t<=57&&45===a?r+="\\"+t.toString(16)+" ":r+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(i):"\\"+n.charAt(i)}var u;try{u=decodeURIComponent("#"+r)}catch(e){u="#"+r}return u},c=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(e,t,n){var o=0;if(e.offsetParent)do{o+=e.offsetTop,e=e.offsetParent}while(e);return o=Math.max(o-t-n,0)},m=function(e){return e?r(e)+e.offsetTop:0},d=function(t,n,o){o||(t.focus(),document.activeElement.id!==t.id&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},f=function(e,t){history.pushState&&t.updateURL&&history.pushState({smoothScroll:JSON.stringify(t),anchor:e.id},document.title,0===e?"#top":"#"+e.id)},h=function(t,n,o,i){if(n.emitEvents&&"function"==typeof e.CustomEvent){var r=new CustomEvent(t,{bubbles:!0,detail:{anchor:o,toggle:i}});document.dispatchEvent(r)}};return function(r,p){var g,v,w,y,E,b,S,A={};A.cancelScroll=function(e){cancelAnimationFrame(S),S=null,e||h("scrollCancel",g)},A.animateScroll=function(n,i,r){var a=o(g||t,r||{}),u="[object Number]"===Object.prototype.toString.call(n),p=u||!n.tagName?null:n;if(u||p){var v=e.pageYOffset;a.header&&!y&&(y=document.querySelector(a.header)),E||(E=m(y));var w,b,C,O=u?n:l(p,E,parseInt("function"==typeof a.offset?a.offset():a.offset,10)),I=O-v,q=s(),F=0,L=function(t,o){var r=e.pageYOffset;if(t==o||r==o||(v<o&&e.innerHeight+r)>=q)return A.cancelScroll(!0),d(n,o,u),h("scrollStop",a,n,i),w=null,S=null,!0},H=function(t){w||(w=t),F+=t-w,b=F/parseInt(a.speed,10),b=b>1?1:b,C=v+I*c(a,b),e.scrollTo(0,Math.floor(C)),L(C,O)||(S=e.requestAnimationFrame(H),w=t)};0===e.pageYOffset&&e.scrollTo(0,0),f(n,a),h("scrollStart",a,n,i),A.cancelScroll(!0),e.requestAnimationFrame(H)}};var C=function(t){if(!i()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&(w=t.target.closest(r))&&"a"===w.tagName.toLowerCase()&&!t.target.closest(g.ignore)&&w.hostname===e.location.hostname&&w.pathname===e.location.pathname&&/#/.test(w.href)){var n=u(a(w.hash));if(g.topOnEmptyHash&&-1!==["#","#top"].indexOf(n))return t.preventDefault(),void A.animateScroll(0,w);v=document.querySelector(n),v&&(t.preventDefault(),A.animateScroll(v,w))}},O=function(e){if(history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(g)&&history.state.anchor){var t=document.querySelector(u(a(history.state.anchor)));t&&A.animateScroll(t,null,{updateURL:!1})}},I=function(e){b||(b=setTimeout((function(){b=null,E=m(y)}),66))};return A.destroy=function(){g&&(document.removeEventListener("click",C,!1),e.removeEventListener("resize",I,!1),e.removeEventListener("popstate",O,!1),A.cancelScroll(),g=null,v=null,w=null,y=null,E=null,b=null,S=null)},A.init=function(i){n()&&(A.destroy(),g=o(t,i||{}),y=g.header?document.querySelector(g.header):null,E=m(y),document.addEventListener("click",C,!1),y&&e.addEventListener("resize",I,!1),g.updateURL&&g.popstate&&e.addEventListener("popstate",O,!1))},A.init(p),A}}));
\ No newline at end of file
diff --git a/docs/dist/js/smooth-scroll.js b/docs/dist/js/smooth-scroll.js
index d352bf7..c0741d2 100755
--- a/docs/dist/js/smooth-scroll.js
+++ b/docs/dist/js/smooth-scroll.js
@@ -19,17 +19,6 @@
 
 	'use strict';
 
-	//
-	// Feature Test
-	//
-
-	var supports =
-		'querySelector' in document &&
-		'addEventListener' in window &&
-		'requestAnimationFrame' in window &&
-		'closest' in window.Element.prototype;
-
-
 	//
 	// Default settings
 	//
@@ -59,6 +48,19 @@
 	// Utility Methods
 	//
 
+	/**
+	 * Check if browser supports required methods
+	 * @return {Boolean} Returns true if all required methods are supported
+	 */
+	var supports = function () {
+		return (
+			'querySelector' in document &&
+			'addEventListener' in window &&
+			'requestAnimationFrame' in window &&
+			'closest' in window.Element.prototype
+		);
+	};
+
 	/**
 	 * Merge two or more objects. Returns a new object.
 	 * @param {Object}   objects  The objects to merge together
@@ -578,7 +580,7 @@
 		smoothScroll.init = function (options) {
 
 			// feature test
-			if (!supports) return;
+			if (!supports()) return;
 
 			// Destroy any existing initializations
 			smoothScroll.destroy();
diff --git a/docs/dist/js/smooth-scroll.min.js b/docs/dist/js/smooth-scroll.min.js
index 6638cc4..9544052 100755
--- a/docs/dist/js/smooth-scroll.min.js
+++ b/docs/dist/js/smooth-scroll.min.js
@@ -1,2 +1,2 @@
 /*! smooth-scroll v14.0.0 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
-!(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t="querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype,n={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},o=function(){for(var e={},t=0;t<arguments.length;t++)!(function(t){for(var n in t)t.hasOwnProperty(n)&&(e[n]=t[n])})(arguments[t]);return e},r=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)},a=function(t){return parseInt(e.getComputedStyle(t).height,10)},i=function(e){var t;try{t=decodeURIComponent(e)}catch(n){t=e}return t},u=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,r=-1,a="",i=n.charCodeAt(0);++r<o;){if(0===(t=n.charCodeAt(r)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===r&&t>=48&&t<=57||1===r&&t>=48&&t<=57&&45===i?a+="\\"+t.toString(16)+" ":a+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(r):"\\"+n.charAt(r)}var u;try{u=decodeURIComponent("#"+a)}catch(e){u="#"+a}return u},c=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(e,t,n){var o=0;if(e.offsetParent)do{o+=e.offsetTop,e=e.offsetParent}while(e);return o=Math.max(o-t-n,0)},f=function(e){return e?a(e)+e.offsetTop:0},d=function(t,n,o){o||(t.focus(),document.activeElement.id!==t.id&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},m=function(e,t){history.pushState&&t.updateURL&&history.pushState({smoothScroll:JSON.stringify(t),anchor:e.id},document.title,0===e?"#top":"#"+e.id)},h=function(t,n,o,r){if(n.emitEvents&&"function"==typeof e.CustomEvent){var a=new CustomEvent(t,{bubbles:!0,detail:{anchor:o,toggle:r}});document.dispatchEvent(a)}};return function(a,p){var g,v,y,S,E,b,O,I={};I.cancelScroll=function(e){cancelAnimationFrame(O),O=null,e||h("scrollCancel",g)},I.animateScroll=function(t,r,a){var i=o(g||n,a||{}),u="[object Number]"===Object.prototype.toString.call(t),p=u||!t.tagName?null:t;if(u||p){var v=e.pageYOffset;i.header&&!S&&(S=document.querySelector(i.header)),E||(E=f(S));var y,b,C,L=u?t:l(p,E,parseInt("function"==typeof i.offset?i.offset():i.offset,10)),w=L-v,A=s(),H=0,Q=function(n,o){var a=e.pageYOffset;if(n==o||a==o||(v<o&&e.innerHeight+a)>=A)return I.cancelScroll(!0),d(t,o,u),h("scrollStop",i,t,r),y=null,O=null,!0},q=function(t){y||(y=t),H+=t-y,b=H/parseInt(i.speed,10),b=b>1?1:b,C=v+w*c(i,b),e.scrollTo(0,Math.floor(C)),Q(C,L)||(O=e.requestAnimationFrame(q),y=t)};0===e.pageYOffset&&e.scrollTo(0,0),m(t,i),h("scrollStart",i,t,r),I.cancelScroll(!0),e.requestAnimationFrame(q)}};var C=function(t){if(!r()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&(y=t.target.closest(a))&&"a"===y.tagName.toLowerCase()&&!t.target.closest(g.ignore)&&y.hostname===e.location.hostname&&y.pathname===e.location.pathname&&/#/.test(y.href)){var n=u(i(y.hash));if(g.topOnEmptyHash&&-1!==["#","#top"].indexOf(n))return t.preventDefault(),void I.animateScroll(0,y);v=document.querySelector(n),v&&(t.preventDefault(),I.animateScroll(v,y))}},L=function(e){if(history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(g)&&history.state.anchor){var t=document.querySelector(u(i(history.state.anchor)));t&&I.animateScroll(t,null,{updateURL:!1})}},w=function(e){b||(b=setTimeout((function(){b=null,E=f(S)}),66))};return I.destroy=function(){g&&(document.removeEventListener("click",C,!1),e.removeEventListener("resize",w,!1),e.removeEventListener("popstate",L,!1),I.cancelScroll(),g=null,v=null,y=null,S=null,E=null,b=null,O=null)},I.init=function(r){t&&(I.destroy(),g=o(n,r||{}),S=g.header?document.querySelector(g.header):null,E=f(S),document.addEventListener("click",C,!1),S&&e.addEventListener("resize",w,!1),g.updateURL&&g.popstate&&e.addEventListener("popstate",L,!1))},I.init(p),I}}));
\ No newline at end of file
+!(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},n=function(){return"querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype},o=function(){for(var e={},t=0;t<arguments.length;t++)!(function(t){for(var n in t)t.hasOwnProperty(n)&&(e[n]=t[n])})(arguments[t]);return e},r=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)},a=function(t){return parseInt(e.getComputedStyle(t).height,10)},i=function(e){var t;try{t=decodeURIComponent(e)}catch(n){t=e}return t},u=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,r=-1,a="",i=n.charCodeAt(0);++r<o;){if(0===(t=n.charCodeAt(r)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===r&&t>=48&&t<=57||1===r&&t>=48&&t<=57&&45===i?a+="\\"+t.toString(16)+" ":a+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(r):"\\"+n.charAt(r)}var u;try{u=decodeURIComponent("#"+a)}catch(e){u="#"+a}return u},c=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(e,t,n){var o=0;if(e.offsetParent)do{o+=e.offsetTop,e=e.offsetParent}while(e);return o=Math.max(o-t-n,0)},f=function(e){return e?a(e)+e.offsetTop:0},d=function(t,n,o){o||(t.focus(),document.activeElement.id!==t.id&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},m=function(e,t){history.pushState&&t.updateURL&&history.pushState({smoothScroll:JSON.stringify(t),anchor:e.id},document.title,0===e?"#top":"#"+e.id)},h=function(t,n,o,r){if(n.emitEvents&&"function"==typeof e.CustomEvent){var a=new CustomEvent(t,{bubbles:!0,detail:{anchor:o,toggle:r}});document.dispatchEvent(a)}};return function(a,p){var g,v,y,S,E,b,O,I={};I.cancelScroll=function(e){cancelAnimationFrame(O),O=null,e||h("scrollCancel",g)},I.animateScroll=function(n,r,a){var i=o(g||t,a||{}),u="[object Number]"===Object.prototype.toString.call(n),p=u||!n.tagName?null:n;if(u||p){var v=e.pageYOffset;i.header&&!S&&(S=document.querySelector(i.header)),E||(E=f(S));var y,b,C,L=u?n:l(p,E,parseInt("function"==typeof i.offset?i.offset():i.offset,10)),w=L-v,A=s(),H=0,Q=function(t,o){var a=e.pageYOffset;if(t==o||a==o||(v<o&&e.innerHeight+a)>=A)return I.cancelScroll(!0),d(n,o,u),h("scrollStop",i,n,r),y=null,O=null,!0},q=function(t){y||(y=t),H+=t-y,b=H/parseInt(i.speed,10),b=b>1?1:b,C=v+w*c(i,b),e.scrollTo(0,Math.floor(C)),Q(C,L)||(O=e.requestAnimationFrame(q),y=t)};0===e.pageYOffset&&e.scrollTo(0,0),m(n,i),h("scrollStart",i,n,r),I.cancelScroll(!0),e.requestAnimationFrame(q)}};var C=function(t){if(!r()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&(y=t.target.closest(a))&&"a"===y.tagName.toLowerCase()&&!t.target.closest(g.ignore)&&y.hostname===e.location.hostname&&y.pathname===e.location.pathname&&/#/.test(y.href)){var n=u(i(y.hash));if(g.topOnEmptyHash&&-1!==["#","#top"].indexOf(n))return t.preventDefault(),void I.animateScroll(0,y);v=document.querySelector(n),v&&(t.preventDefault(),I.animateScroll(v,y))}},L=function(e){if(history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(g)&&history.state.anchor){var t=document.querySelector(u(i(history.state.anchor)));t&&I.animateScroll(t,null,{updateURL:!1})}},w=function(e){b||(b=setTimeout((function(){b=null,E=f(S)}),66))};return I.destroy=function(){g&&(document.removeEventListener("click",C,!1),e.removeEventListener("resize",w,!1),e.removeEventListener("popstate",L,!1),I.cancelScroll(),g=null,v=null,y=null,S=null,E=null,b=null,O=null)},I.init=function(r){n()&&(I.destroy(),g=o(t,r||{}),S=g.header?document.querySelector(g.header):null,E=f(S),document.addEventListener("click",C,!1),S&&e.addEventListener("resize",w,!1),g.updateURL&&g.popstate&&e.addEventListener("popstate",L,!1))},I.init(p),I}}));
\ No newline at end of file
diff --git a/docs/dist/js/smooth-scroll.polyfills.js b/docs/dist/js/smooth-scroll.polyfills.js
index 8e0bd7f..265ad13 100755
--- a/docs/dist/js/smooth-scroll.polyfills.js
+++ b/docs/dist/js/smooth-scroll.polyfills.js
@@ -89,17 +89,6 @@ if (window.Element && !Element.prototype.closest) {
 
 	'use strict';
 
-	//
-	// Feature Test
-	//
-
-	var supports =
-		'querySelector' in document &&
-		'addEventListener' in window &&
-		'requestAnimationFrame' in window &&
-		'closest' in window.Element.prototype;
-
-
 	//
 	// Default settings
 	//
@@ -129,6 +118,19 @@ if (window.Element && !Element.prototype.closest) {
 	// Utility Methods
 	//
 
+	/**
+	 * Check if browser supports required methods
+	 * @return {Boolean} Returns true if all required methods are supported
+	 */
+	var supports = function () {
+		return (
+			'querySelector' in document &&
+			'addEventListener' in window &&
+			'requestAnimationFrame' in window &&
+			'closest' in window.Element.prototype
+		);
+	};
+
 	/**
 	 * Merge two or more objects. Returns a new object.
 	 * @param {Object}   objects  The objects to merge together
@@ -648,7 +650,7 @@ if (window.Element && !Element.prototype.closest) {
 		smoothScroll.init = function (options) {
 
 			// feature test
-			if (!supports) return;
+			if (!supports()) return;
 
 			// Destroy any existing initializations
 			smoothScroll.destroy();
diff --git a/docs/dist/js/smooth-scroll.polyfills.min.js b/docs/dist/js/smooth-scroll.polyfills.min.js
index 3173c4c..46ad04c 100755
--- a/docs/dist/js/smooth-scroll.polyfills.min.js
+++ b/docs/dist/js/smooth-scroll.polyfills.min.js
@@ -1,2 +1,2 @@
 /*! smooth-scroll v14.0.0 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
-window.Element&&!Element.prototype.closest&&(Element.prototype.closest=function(e){var t,n=(this.document||this.ownerDocument).querySelectorAll(e),o=this;do{for(t=n.length;--t>=0&&n.item(t)!==o;);}while(t<0&&(o=o.parentElement));return o}),(function(){function e(e,t){t=t||{bubbles:!1,cancelable:!1,detail:void 0};var n=document.createEvent("CustomEvent");return n.initCustomEvent(e,t.bubbles,t.cancelable,t.detail),n}if("function"==typeof window.CustomEvent)return!1;e.prototype=window.Event.prototype,window.CustomEvent=e})(),(function(){for(var e=0,t=["ms","moz","webkit","o"],n=0;n<t.length&&!window.requestAnimationFrame;++n)window.requestAnimationFrame=window[t[n]+"RequestAnimationFrame"],window.cancelAnimationFrame=window[t[n]+"CancelAnimationFrame"]||window[t[n]+"CancelRequestAnimationFrame"];window.requestAnimationFrame||(window.requestAnimationFrame=function(t,n){var o=(new Date).getTime(),i=Math.max(0,16-(o-e)),a=window.setTimeout((function(){t(o+i)}),i);return e=o+i,a}),window.cancelAnimationFrame||(window.cancelAnimationFrame=function(e){clearTimeout(e)})})(),(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t="querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype,n={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},o=function(){for(var e={},t=0;t<arguments.length;t++)!(function(t){for(var n in t)t.hasOwnProperty(n)&&(e[n]=t[n])})(arguments[t]);return e},i=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)},a=function(t){return parseInt(e.getComputedStyle(t).height,10)},r=function(e){var t;try{t=decodeURIComponent(e)}catch(n){t=e}return t},u=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,i=-1,a="",r=n.charCodeAt(0);++i<o;){if(0===(t=n.charCodeAt(i)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===i&&t>=48&&t<=57||1===i&&t>=48&&t<=57&&45===r?a+="\\"+t.toString(16)+" ":a+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(i):"\\"+n.charAt(i)}var u;try{u=decodeURIComponent("#"+a)}catch(e){u="#"+a}return u},c=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(e,t,n){var o=0;if(e.offsetParent)do{o+=e.offsetTop,e=e.offsetParent}while(e);return o=Math.max(o-t-n,0)},m=function(e){return e?a(e)+e.offsetTop:0},d=function(t,n,o){o||(t.focus(),document.activeElement.id!==t.id&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},f=function(e,t){history.pushState&&t.updateURL&&history.pushState({smoothScroll:JSON.stringify(t),anchor:e.id},document.title,0===e?"#top":"#"+e.id)},h=function(t,n,o,i){if(n.emitEvents&&"function"==typeof e.CustomEvent){var a=new CustomEvent(t,{bubbles:!0,detail:{anchor:o,toggle:i}});document.dispatchEvent(a)}};return function(a,p){var g,v,w,y,E,b,S,A={};A.cancelScroll=function(e){cancelAnimationFrame(S),S=null,e||h("scrollCancel",g)},A.animateScroll=function(t,i,a){var r=o(g||n,a||{}),u="[object Number]"===Object.prototype.toString.call(t),p=u||!t.tagName?null:t;if(u||p){var v=e.pageYOffset;r.header&&!y&&(y=document.querySelector(r.header)),E||(E=m(y));var w,b,C,O=u?t:l(p,E,parseInt("function"==typeof r.offset?r.offset():r.offset,10)),I=O-v,q=s(),F=0,L=function(n,o){var a=e.pageYOffset;if(n==o||a==o||(v<o&&e.innerHeight+a)>=q)return A.cancelScroll(!0),d(t,o,u),h("scrollStop",r,t,i),w=null,S=null,!0},H=function(t){w||(w=t),F+=t-w,b=F/parseInt(r.speed,10),b=b>1?1:b,C=v+I*c(r,b),e.scrollTo(0,Math.floor(C)),L(C,O)||(S=e.requestAnimationFrame(H),w=t)};0===e.pageYOffset&&e.scrollTo(0,0),f(t,r),h("scrollStart",r,t,i),A.cancelScroll(!0),e.requestAnimationFrame(H)}};var C=function(t){if(!i()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&(w=t.target.closest(a))&&"a"===w.tagName.toLowerCase()&&!t.target.closest(g.ignore)&&w.hostname===e.location.hostname&&w.pathname===e.location.pathname&&/#/.test(w.href)){var n=u(r(w.hash));if(g.topOnEmptyHash&&-1!==["#","#top"].indexOf(n))return t.preventDefault(),void A.animateScroll(0,w);v=document.querySelector(n),v&&(t.preventDefault(),A.animateScroll(v,w))}},O=function(e){if(history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(g)&&history.state.anchor){var t=document.querySelector(u(r(history.state.anchor)));t&&A.animateScroll(t,null,{updateURL:!1})}},I=function(e){b||(b=setTimeout((function(){b=null,E=m(y)}),66))};return A.destroy=function(){g&&(document.removeEventListener("click",C,!1),e.removeEventListener("resize",I,!1),e.removeEventListener("popstate",O,!1),A.cancelScroll(),g=null,v=null,w=null,y=null,E=null,b=null,S=null)},A.init=function(i){t&&(A.destroy(),g=o(n,i||{}),y=g.header?document.querySelector(g.header):null,E=m(y),document.addEventListener("click",C,!1),y&&e.addEventListener("resize",I,!1),g.updateURL&&g.popstate&&e.addEventListener("popstate",O,!1))},A.init(p),A}}));
\ No newline at end of file
+window.Element&&!Element.prototype.closest&&(Element.prototype.closest=function(e){var t,n=(this.document||this.ownerDocument).querySelectorAll(e),o=this;do{for(t=n.length;--t>=0&&n.item(t)!==o;);}while(t<0&&(o=o.parentElement));return o}),(function(){function e(e,t){t=t||{bubbles:!1,cancelable:!1,detail:void 0};var n=document.createEvent("CustomEvent");return n.initCustomEvent(e,t.bubbles,t.cancelable,t.detail),n}if("function"==typeof window.CustomEvent)return!1;e.prototype=window.Event.prototype,window.CustomEvent=e})(),(function(){for(var e=0,t=["ms","moz","webkit","o"],n=0;n<t.length&&!window.requestAnimationFrame;++n)window.requestAnimationFrame=window[t[n]+"RequestAnimationFrame"],window.cancelAnimationFrame=window[t[n]+"CancelAnimationFrame"]||window[t[n]+"CancelRequestAnimationFrame"];window.requestAnimationFrame||(window.requestAnimationFrame=function(t,n){var o=(new Date).getTime(),i=Math.max(0,16-(o-e)),r=window.setTimeout((function(){t(o+i)}),i);return e=o+i,r}),window.cancelAnimationFrame||(window.cancelAnimationFrame=function(e){clearTimeout(e)})})(),(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},n=function(){return"querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype},o=function(){for(var e={},t=0;t<arguments.length;t++)!(function(t){for(var n in t)t.hasOwnProperty(n)&&(e[n]=t[n])})(arguments[t]);return e},i=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)},r=function(t){return parseInt(e.getComputedStyle(t).height,10)},a=function(e){var t;try{t=decodeURIComponent(e)}catch(n){t=e}return t},u=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,i=-1,r="",a=n.charCodeAt(0);++i<o;){if(0===(t=n.charCodeAt(i)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===i&&t>=48&&t<=57||1===i&&t>=48&&t<=57&&45===a?r+="\\"+t.toString(16)+" ":r+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(i):"\\"+n.charAt(i)}var u;try{u=decodeURIComponent("#"+r)}catch(e){u="#"+r}return u},c=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(e,t,n){var o=0;if(e.offsetParent)do{o+=e.offsetTop,e=e.offsetParent}while(e);return o=Math.max(o-t-n,0)},m=function(e){return e?r(e)+e.offsetTop:0},d=function(t,n,o){o||(t.focus(),document.activeElement.id!==t.id&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},f=function(e,t){history.pushState&&t.updateURL&&history.pushState({smoothScroll:JSON.stringify(t),anchor:e.id},document.title,0===e?"#top":"#"+e.id)},h=function(t,n,o,i){if(n.emitEvents&&"function"==typeof e.CustomEvent){var r=new CustomEvent(t,{bubbles:!0,detail:{anchor:o,toggle:i}});document.dispatchEvent(r)}};return function(r,p){var g,v,w,y,E,b,S,A={};A.cancelScroll=function(e){cancelAnimationFrame(S),S=null,e||h("scrollCancel",g)},A.animateScroll=function(n,i,r){var a=o(g||t,r||{}),u="[object Number]"===Object.prototype.toString.call(n),p=u||!n.tagName?null:n;if(u||p){var v=e.pageYOffset;a.header&&!y&&(y=document.querySelector(a.header)),E||(E=m(y));var w,b,C,O=u?n:l(p,E,parseInt("function"==typeof a.offset?a.offset():a.offset,10)),I=O-v,q=s(),F=0,L=function(t,o){var r=e.pageYOffset;if(t==o||r==o||(v<o&&e.innerHeight+r)>=q)return A.cancelScroll(!0),d(n,o,u),h("scrollStop",a,n,i),w=null,S=null,!0},H=function(t){w||(w=t),F+=t-w,b=F/parseInt(a.speed,10),b=b>1?1:b,C=v+I*c(a,b),e.scrollTo(0,Math.floor(C)),L(C,O)||(S=e.requestAnimationFrame(H),w=t)};0===e.pageYOffset&&e.scrollTo(0,0),f(n,a),h("scrollStart",a,n,i),A.cancelScroll(!0),e.requestAnimationFrame(H)}};var C=function(t){if(!i()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&(w=t.target.closest(r))&&"a"===w.tagName.toLowerCase()&&!t.target.closest(g.ignore)&&w.hostname===e.location.hostname&&w.pathname===e.location.pathname&&/#/.test(w.href)){var n=u(a(w.hash));if(g.topOnEmptyHash&&-1!==["#","#top"].indexOf(n))return t.preventDefault(),void A.animateScroll(0,w);v=document.querySelector(n),v&&(t.preventDefault(),A.animateScroll(v,w))}},O=function(e){if(history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(g)&&history.state.anchor){var t=document.querySelector(u(a(history.state.anchor)));t&&A.animateScroll(t,null,{updateURL:!1})}},I=function(e){b||(b=setTimeout((function(){b=null,E=m(y)}),66))};return A.destroy=function(){g&&(document.removeEventListener("click",C,!1),e.removeEventListener("resize",I,!1),e.removeEventListener("popstate",O,!1),A.cancelScroll(),g=null,v=null,w=null,y=null,E=null,b=null,S=null)},A.init=function(i){n()&&(A.destroy(),g=o(t,i||{}),y=g.header?document.querySelector(g.header):null,E=m(y),document.addEventListener("click",C,!1),y&&e.addEventListener("resize",I,!1),g.updateURL&&g.popstate&&e.addEventListener("popstate",O,!1))},A.init(p),A}}));
\ No newline at end of file
diff --git a/src/js/smooth-scroll.js b/src/js/smooth-scroll.js
index 573f299..9090cbd 100755
--- a/src/js/smooth-scroll.js
+++ b/src/js/smooth-scroll.js
@@ -12,17 +12,6 @@
 
 	'use strict';
 
-	//
-	// Feature Test
-	//
-
-	var supports =
-		'querySelector' in document &&
-		'addEventListener' in window &&
-		'requestAnimationFrame' in window &&
-		'closest' in window.Element.prototype;
-
-
 	//
 	// Default settings
 	//
@@ -52,6 +41,19 @@
 	// Utility Methods
 	//
 
+	/**
+	 * Check if browser supports required methods
+	 * @return {Boolean} Returns true if all required methods are supported
+	 */
+	var supports = function () {
+		return (
+			'querySelector' in document &&
+			'addEventListener' in window &&
+			'requestAnimationFrame' in window &&
+			'closest' in window.Element.prototype
+		);
+	};
+
 	/**
 	 * Merge two or more objects. Returns a new object.
 	 * @param {Object}   objects  The objects to merge together
@@ -571,7 +573,7 @@
 		smoothScroll.init = function (options) {
 
 			// feature test
-			if (!supports) return;
+			if (!supports()) return;
 
 			// Destroy any existing initializations
 			smoothScroll.destroy();

From 902c26cbb4d5cdf98e1594804fec9748a98487b5 Mon Sep 17 00:00:00 2001
From: cferdinandi <chris@gomakethings.com>
Date: Thu, 17 May 2018 21:10:03 -0400
Subject: [PATCH 07/51] v14.0.0 Release

---
 .github/issue_template.md                     |   3 +
 SUPPORT.md => .github/support.md              |   9 +-
 README.md                                     | 162 +++++++-----------
 dist/{js => }/smooth-scroll.js                |   0
 dist/{js => }/smooth-scroll.min.js            |   0
 dist/{js => }/smooth-scroll.polyfills.js      |   0
 dist/{js => }/smooth-scroll.polyfills.min.js  |   0
 docs/dist/{js => }/smooth-scroll.js           |   0
 docs/dist/{js => }/smooth-scroll.min.js       |   0
 docs/dist/{js => }/smooth-scroll.polyfills.js |   0
 .../{js => }/smooth-scroll.polyfills.min.js   |   0
 gulpfile.js                                   |   2 +-
 package.json                                  |   2 +-
 13 files changed, 77 insertions(+), 101 deletions(-)
 create mode 100755 .github/issue_template.md
 rename SUPPORT.md => .github/support.md (59%)
 rename dist/{js => }/smooth-scroll.js (100%)
 rename dist/{js => }/smooth-scroll.min.js (100%)
 rename dist/{js => }/smooth-scroll.polyfills.js (100%)
 rename dist/{js => }/smooth-scroll.polyfills.min.js (100%)
 rename docs/dist/{js => }/smooth-scroll.js (100%)
 rename docs/dist/{js => }/smooth-scroll.min.js (100%)
 rename docs/dist/{js => }/smooth-scroll.polyfills.js (100%)
 rename docs/dist/{js => }/smooth-scroll.polyfills.min.js (100%)

diff --git a/.github/issue_template.md b/.github/issue_template.md
new file mode 100755
index 0000000..e92cc83
--- /dev/null
+++ b/.github/issue_template.md
@@ -0,0 +1,3 @@
+<!-- Thanks for submitting an issue! All bug reports and problem issues require a **reduced test case**. Create one forking the JSFiddle linked below. See the guidelines link above for more details. -->
+
+**Test case:** https://jsfiddle.net/cferdinandi/87v3pqp0/
\ No newline at end of file
diff --git a/SUPPORT.md b/.github/support.md
similarity index 59%
rename from SUPPORT.md
rename to .github/support.md
index 3ac7048..a9e4594 100644
--- a/SUPPORT.md
+++ b/.github/support.md
@@ -1,14 +1,17 @@
 # Bugs, Questions, and Feature Requests
 
-You can ask questions and get help from a community of developers on [GitHub Issues](https://github.com/cferdinandi/smooth-scroll/issues).
+Report bugs, ask questions, and request features using [GitHub Issues](https://github.com/cferdinandi/smooth-scroll/issues).
 
-**Before posting, do a search to make sure your issue or question hasn't already been reported or discussed.** If no matching issue exists, go ahead and create one. Please be sure to include all of the following:
+**Before posting, do a search to make sure your issue or question hasn't already been reported or discussed.** If no matching issue exists, go ahead and create one.
+
+**Please be sure to include all of the following:**
 
 1. A clear, descriptive title (ie. "A bug" is not a good title).
 2. [A reduced test case.](https://css-tricks.com/reduced-test-cases/)
 	- Clearly demonstrate the bug or issue.
 	- Include the bare minimum HTML, CSS, and JavaScript required to demonstrate the bug.
-	- A link to your production site is not a reduced test case.
+	- A link to your production site is **not** a reduced test case.
+	- You can create one by [forking this JSFiddle](https://jsfiddle.net/cferdinandi/87v3pqp0/).
 3. The browser and OS that you're using.
 
 Duplicates and issues without a reduced test case may be closed without comment.
\ No newline at end of file
diff --git a/README.md b/README.md
index 61f8f46..0c6bb31 100755
--- a/README.md
+++ b/README.md
@@ -1,12 +1,12 @@
 # Smooth Scroll [![Build Status](https://travis-ci.org/cferdinandi/smooth-scroll.svg)](https://travis-ci.org/cferdinandi/smooth-scroll)
 A lightweight script to animate scrolling to anchor links. Smooth Scroll works great with [Gumshoe](https://github.com/cferdinandi/gumshoe).
 
-[Download Smooth Scroll](https://github.com/cferdinandi/smooth-scroll/archive/master.zip) / [View the demo](http://cferdinandi.github.io/smooth-scroll/)
+[Demo](http://cferdinandi.github.io/smooth-scroll/)
 
 
 <hr>
 
-### Want to learn how to write your own vanilla JS plugins? Check out my [Vanilla JS Pocket Guides series](https://gomakethings.com/guides/) and level-up as a web developer. 🚀
+### Want to learn how to write your own vanilla JS plugins? Check out my [Vanilla JS Pocket Guides](https://vanillajsguides.com/) or join the [Vanilla JS Academy](https://vanillajsacademy.com) and level-up as a web developer. 🚀
 
 <hr>
 
@@ -18,12 +18,26 @@ Compiled and production-ready code can be found in the `dist` directory. The `sr
 
 ### 1. Include Smooth Scroll on your site.
 
-There are two versions of Smooth Scroll: the standalone version, and one that comes preloaded with polyfills for the `closest()` and `requestAnimationFrame()` methods, which are only supported in newer browsers.
+There are two versions of Smooth Scroll: the standalone version, and one that comes preloaded with polyfills for `closest()`, `requestAnimationFrame()`, and `CustomEvent()`, which are only supported in newer browsers.
 
 If you're including your own polyfills or don't want to enable this feature for older browsers, use the standalone version. Otherwise, use the version with polyfills.
 
+**Direct `<script>` include**
+
+[Download the files directly](https://github.com/cferdinandi/smooth-scroll/archive/master.zip) or use the [jsDelivr CDN](https://cdn.jsdelivr.net/gh/cferdinandi/smooth-scroll/dist/).
+
 ```html
-<script src="http://github.com/dist/js/smooth-scroll.js"></script>
+<!-- Direct Download -->
+<script src="http://github.com/path/to/smooth-scroll.polyfills.min.js"></script>
+
+<!-- CDN -->
+<script src="https://cdn.jsdelivr.net/gh/cferdinandi/smooth-scroll@12.1.5/dist/smooth-scroll.polyfills.min.js"></script>
+```
+
+**NPM**
+
+```bash
+npm install smooth-scroll
 ```
 
 ### 2. Add the markup to your HTML.
@@ -52,16 +66,6 @@ In the footer of your page, after the content, initialize Smooth Scroll by passi
 
 
 
-## Installing with Package Managers
-
-You can install Smooth Scroll with your favorite package manager or module loader directly from  NPM.
-
-```
-npm install smooth-scroll
-```
-
-
-
 ## Working with the Source Files
 
 If you would prefer, you can work with the development code in the `src` directory using the included [Gulp build system](http://gulpjs.com/). This compiles, lints, and minifies code.
@@ -92,9 +96,11 @@ You can pass options and callbacks into Smooth Scroll through the `init()` funct
 
 ```javascript
 var scroll = new SmoothScroll('a[href*="#"]', {
+
 	// Selectors
 	ignore: '[data-scroll-ignore]', // Selector for links to ignore (must be a valid CSS selector)
 	header: null, // Selector for fixed headers (must be a valid CSS selector)
+	topOnEmptyHash: true, // Scroll to the top of the page for links with href="#"
 
 	// Speed & Easing
 	speed: 500, // Integer. How fast to complete the scroll in milliseconds
@@ -112,9 +118,13 @@ var scroll = new SmoothScroll('a[href*="#"]', {
 
 	},
 
-	// Callback API
-	before: function (anchor, toggle) {}, // Callback to run before scroll
-	after: function (anchor, toggle) {} // Callback to run after scroll
+	// History
+	updateURL: true, // Update the URL on scroll
+	popstate: true, // Animate scrolling with the forward/backward browser buttons (requires updateURL to be true)
+
+	// Custom Events
+	emitEvents: true // Emit custom events
+
 });
 ```
 
@@ -156,6 +166,37 @@ Some common easing patterns are included by default, but you can also pass in yo
 
 Learn more about the different easing patterns and what they do at [easings.net](http://easings.net/).
 
+### Custom Events
+
+Smooth Scroll emits three custom events:
+
+- `scrollStart` is emitted when the scrolling animation starts.
+- `scrollStop` is emitted when the scrolling animation stops.
+- `scrollCancel` is emitted if the scrolling animation is canceled.
+
+All three events are emitted on the `document` element and bubble up. You can listen for them with the `addEventListener()` method. The `event.detail` object includes the `anchor` and `toggle` elements for the animation.
+
+```js
+// Log scroll events
+var logScrollEvent = function (event) {
+
+	// The event type
+	console.log('type:', event.type);
+
+	// The anchor element being scrolled to
+	console.log('anchor:', event.detail.anchor);
+
+	// The anchor link that triggered the scroll
+	console.log('toggle:', event.detail.toggle);
+
+};
+
+// Listen for scroll events
+document.addEventListener('scrollStart', logScrollEvent, false);
+document.addEventListener('scrollStop', logScrollEvent, false);
+document.addEventListener('scrollCancel', logScrollEvent, false);
+```
+
 ### Use Smooth Scroll events in your own scripts
 
 You can also call Smooth Scroll's methods in your own scripts.
@@ -244,24 +285,19 @@ If you have multiple fixed headers, pass in the last one in the markup.
 ```
 
 
-## Migrating to Smooth Scroll 12 from Older Versions
+## Migrating to Smooth Scroll 14 from Older Versions
 
 ### New Features
 
-- You can now initialize multiple instances of Smooth Scroll with different selectors and options:
-	```js
-	var scrollFast = new SmoothScroll('.scroll-fast', {speed: 100});
-	var scrollSlow = new SmoothScroll('.scroll-slow', {speed: 5000});
-	```
-- The new `cancelScroll()` method lets you programatically cancel a scroll-in-progress.
-- Scrolling animation is now powered by `requestAnimationFrame()`, resulting in smoother scrolling and better performance.
-- Smooth Scroll now supports Reduced Motion (currently a Safari-only feature). If the visitor has indicated that they [prefer reduced motion](https://css-tricks.com/smooth-scrolling-accessibility/), Smooth Scroll will jump to the anchor link as normal instead of animating the scroll.
+- You can now choose not to update the URL as a native feature. No more hacks using the API.
+- You can choose not to scroll to top on `href="#"`, providing more flexibility for some CMS implementations.
+- Custom events let you more easily hook into Smooth Scroll from other scripts.
+- The feature test is scoped to a function, allowing for server-side implementations.
+- The loss of styling with IDs experienced in earlier versions has been eliminated.
 
 ### Breaking Changes
 
-- You no longer initialize Smooth Scroll via `smoothScroll.init()`. You must now instantiate a new JavaScript object: `new SmoothScroll()`.
-- There is no longer a default selector. You should pass in a selector as the first argument when setting up your constructor: `new SmoothScroll('.my-selector')`.
-- The `data-options` feature has been deprecated, as the same effect can be achieved by initializing the plugin with different selectors.
+- Callback methods have been removed in favor of events.
 
 
 
@@ -273,7 +309,7 @@ Smooth Scroll is built with modern JavaScript APIs, and uses progressive enhance
 
 ### Polyfills
 
-Support back to IE9 requires polyfills for the `closest()` and `requestAnimationFrame()` methods. Without them, support starts with Edge.
+Support back to IE9 requires polyfills for `closest()`, `requestAnimationFrame()`, and `CustomEvent()`. Without them, support starts with Edge.
 
 Use the included polyfills version of Smooth Scroll, or include your own.
 
@@ -289,78 +325,12 @@ If the `<body>` element has been assigned a height of `100%` or `overflow: hidde
 
 Animated scrolling links at the very bottom of the page (example: a "scroll to top" link) will stop animated almost immediately after they start when using certain easing patterns. This is an issue that's been around for a while and I've yet to find a good fix for it. I've found that `easeOut*` easing patterns work as expected, but other patterns can cause issues. [See this discussion for more details.](https://github.com/cferdinandi/smooth-scroll/issues/49)
 
-### Styling with IDs
-
-If you use an ID to style an element in your CSS, and that same element is targeted by an anchor link that you're scrolling to with Smooth Scroll, you will experience a temporary loss of styling.
-
-Smooth Scroll temporarily removes the ID to prevent the page from jumping when the URL changes, and then adds it back. Use a class instead of an ID to avoid this issue.
-
-```css
-/* Instead of this */
-#some-element {
-	background-color: purple;
-}
-
-/* Do this */
-.some-element {
-	background-color: purple;
-}
-```
-
-
-
-## Extras
-
-Frequently asked questions, code snippets, and more to help you get the most out of Smooth Scroll.
-
 ### Scrolling to an anchor link on another page
 
 This, unfortunately, cannot be done well.
 
 Most browsers instantly jump you to the anchor location when you load a page. You could use `scrollTo(0, 0)` to pull users back up to the top, and then manually use the `animateScroll()` method, but in my experience, it results in a visible jump on the page that's a worse experience than the default browser behavior.
 
-### Scrolling without updating the URL
-
-Smooth Scroll is designed to progressively enhance anchor links while offloading as much to the browser as possible. In it's current implementation, it relies on `hashchange` events (which occur whenever a `#` changes in the URL) to trigger the scrolling behavior.
-
-A benefit of this approach is that it preserves browser history and let's users navigate between anchors with the forward and back buttons on the browsers, just like you would normally.
-
-*However*, I know certain front-end frameworks also use URL hashes for their own internal processes. While I view this as an anti-pattern, and won't bake hashless anchor links into Smooth Scroll's core, you can enable scrolling without updating the URL via the Smooth Scroll API.
-
-Here's a relatively lightweight helper function that listens for click events and uses the `animateScroll()` method to scroll to the anchor. If you use this, you **should not** pass a selector into `new SmoothScroll()`.
-
-```js
-var scroll = new SmoothScroll();
-
-var smoothScrollWithoutHash = function (selector, settings) {
-	/**
-	 * If smooth scroll element clicked, animate scroll
-	 */
-	var clickHandler = function (event) {
-		var toggle = event.target.closest( selector );
-		console.log(toggle);
-		if ( !toggle || toggle.tagName.toLowerCase() !== 'a' ) return;
-		console.log(toggle.hash);
-		var anchor = document.querySelector( toggle.hash );
-		if ( !anchor ) return;
-
-		event.preventDefault(); // Prevent default click event
-		scroll.animateScroll( anchor, toggle, settings || {} ); // Animate scroll
-	};
-
-	window.addEventListener('click', clickHandler, false );
-};
-
-// Run our function
-smoothScrollWithoutHash( 'a[href*="#"]' );
-```
-
-
-
-## Support
-
-Please review the [support guidelines](SUPPORT.md).
-
 
 
 ## License
diff --git a/dist/js/smooth-scroll.js b/dist/smooth-scroll.js
similarity index 100%
rename from dist/js/smooth-scroll.js
rename to dist/smooth-scroll.js
diff --git a/dist/js/smooth-scroll.min.js b/dist/smooth-scroll.min.js
similarity index 100%
rename from dist/js/smooth-scroll.min.js
rename to dist/smooth-scroll.min.js
diff --git a/dist/js/smooth-scroll.polyfills.js b/dist/smooth-scroll.polyfills.js
similarity index 100%
rename from dist/js/smooth-scroll.polyfills.js
rename to dist/smooth-scroll.polyfills.js
diff --git a/dist/js/smooth-scroll.polyfills.min.js b/dist/smooth-scroll.polyfills.min.js
similarity index 100%
rename from dist/js/smooth-scroll.polyfills.min.js
rename to dist/smooth-scroll.polyfills.min.js
diff --git a/docs/dist/js/smooth-scroll.js b/docs/dist/smooth-scroll.js
similarity index 100%
rename from docs/dist/js/smooth-scroll.js
rename to docs/dist/smooth-scroll.js
diff --git a/docs/dist/js/smooth-scroll.min.js b/docs/dist/smooth-scroll.min.js
similarity index 100%
rename from docs/dist/js/smooth-scroll.min.js
rename to docs/dist/smooth-scroll.min.js
diff --git a/docs/dist/js/smooth-scroll.polyfills.js b/docs/dist/smooth-scroll.polyfills.js
similarity index 100%
rename from docs/dist/js/smooth-scroll.polyfills.js
rename to docs/dist/smooth-scroll.polyfills.js
diff --git a/docs/dist/js/smooth-scroll.polyfills.min.js b/docs/dist/smooth-scroll.polyfills.min.js
similarity index 100%
rename from docs/dist/js/smooth-scroll.polyfills.min.js
rename to docs/dist/smooth-scroll.polyfills.min.js
diff --git a/gulpfile.js b/gulpfile.js
index 2c41489..e8eb065 100755
--- a/gulpfile.js
+++ b/gulpfile.js
@@ -66,7 +66,7 @@ var paths = {
 	scripts: {
 		input: 'src/js/*',
 		polyfills: '!src/js/*.polyfill.js',
-		output: 'dist/js/'
+		output: 'dist/'
 	},
 	styles: {
 		input: 'src/sass/**/*.{scss,sass}',
diff --git a/package.json b/package.json
index af8a26d..34054ff 100755
--- a/package.json
+++ b/package.json
@@ -2,7 +2,7 @@
 	"name": "smooth-scroll",
 	"version": "14.0.0",
 	"description": "Animate scrolling to anchor links",
-	"main": "./dist/js/smooth-scroll.min.js",
+	"main": "./dist/smooth-scroll.min.js",
 	"author": {
 		"name": "Chris Ferdinandi",
 		"url": "http://gomakethings.com/"

From b64d4fd0596ef19ccfb381aa5e852dc0ac6ae716 Mon Sep 17 00:00:00 2001
From: cferdinandi <chris@gomakethings.com>
Date: Thu, 17 May 2018 23:13:50 -0400
Subject: [PATCH 08/51] Updated the readme

---
 README.md | 41 ++++++++++++++++++++++++++++++++---------
 1 file changed, 32 insertions(+), 9 deletions(-)

diff --git a/README.md b/README.md
index 0c6bb31..33c64f4 100755
--- a/README.md
+++ b/README.md
@@ -22,22 +22,31 @@ There are two versions of Smooth Scroll: the standalone version, and one that co
 
 If you're including your own polyfills or don't want to enable this feature for older browsers, use the standalone version. Otherwise, use the version with polyfills.
 
-**Direct `<script>` include**
+**Direct Download**
 
-[Download the files directly](https://github.com/cferdinandi/smooth-scroll/archive/master.zip) or use the [jsDelivr CDN](https://cdn.jsdelivr.net/gh/cferdinandi/smooth-scroll/dist/).
+You can [download the files directly from GitHub](https://github.com/cferdinandi/smooth-scroll/archive/master.zip).
 
 ```html
-<!-- Direct Download -->
 <script src="http://github.com/path/to/smooth-scroll.polyfills.min.js"></script>
-
-<!-- CDN -->
-<script src="https://cdn.jsdelivr.net/gh/cferdinandi/smooth-scroll@12.1.5/dist/smooth-scroll.polyfills.min.js"></script>
 ```
 
-**NPM**
+**CDN**
+
+You can also use the [jsDelivr CDN](https://cdn.jsdelivr.net/gh/cferdinandi/smooth-scroll/dist/). I recommend linking to a specific version number or version range to prevent major updates from breaking your site. Smooth Scroll uses semantic versioning.
+
+```html
+<!-- Always get the latest version -->
+<!-- Not recommended for production sites! -->
+<script src="https://cdn.jsdelivr.net/gh/cferdinandi/smooth-scroll/dist/smooth-scroll.polyfills.min.js"></script>
 
-```bash
-npm install smooth-scroll
+<!-- Get minor updates and patch fixes within a major version -->
+<script src="https://cdn.jsdelivr.net/gh/cferdinandi/smooth-scroll@14/dist/smooth-scroll.polyfills.min.js"></script>
+
+<!-- Get patch fixes within a minor version -->
+<script src="https://cdn.jsdelivr.net/gh/cferdinandi/smooth-scroll@14.0/dist/smooth-scroll.polyfills.min.js"></script>
+
+<!-- Get a specific version -->
+<script src="https://cdn.jsdelivr.net/gh/cferdinandi/smooth-scroll@14.0.0/dist/smooth-scroll.polyfills.min.js"></script>
 ```
 
 ### 2. Add the markup to your HTML.
@@ -65,6 +74,20 @@ In the footer of your page, after the content, initialize Smooth Scroll by passi
 ***Note:*** *The `a[href*="#"]` selector will apply Smooth Scroll to all anchor links. You can selectively target links using any other selector(s) you'd like. Smooth Scroll accepts multiple selectors as a comma separated list. Example: `'.js-scroll, [data-scroll], #some-link'`.*
 
 
+## ES6 Modules
+
+Smooth Scroll does not have a default export, but does support CommonJS and can be used with native ES6 module imports.
+
+```js
+import('/path/to/smooth-scroll.polyfills.min.js')
+	.then(function () {
+		var scroll = new SmoothScroll('a[href*="#"]');
+	});
+```
+
+It uses a UMD pattern, and should also work in most major module bundlers and package managers.
+
+
 
 ## Working with the Source Files
 

From 1dbadbc891dd7600f05b5d0b228fd6f6e4d81b7e Mon Sep 17 00:00:00 2001
From: cferdinandi <chris@gomakethings.com>
Date: Fri, 18 May 2018 10:34:11 -0400
Subject: [PATCH 09/51] v14.0.1 Fixed issues with updating the URL and
 adjusting focus in certain situations

---
 README.md                                | 14 ++++-----
 dist/smooth-scroll.js                    | 39 +++++++++++-------------
 dist/smooth-scroll.min.js                |  4 +--
 dist/smooth-scroll.polyfills.js          | 39 +++++++++++-------------
 dist/smooth-scroll.polyfills.min.js      |  4 +--
 docs/dist/smooth-scroll.js               | 39 +++++++++++-------------
 docs/dist/smooth-scroll.min.js           |  4 +--
 docs/dist/smooth-scroll.polyfills.js     | 39 +++++++++++-------------
 docs/dist/smooth-scroll.polyfills.min.js |  4 +--
 docs/index.html                          |  2 +-
 package.json                             |  2 +-
 src/docs/_templates/_footer.html         |  2 +-
 src/js/smooth-scroll.js                  | 37 +++++++++++-----------
 13 files changed, 107 insertions(+), 122 deletions(-)

diff --git a/README.md b/README.md
index 33c64f4..d5b7b76 100755
--- a/README.md
+++ b/README.md
@@ -230,8 +230,8 @@ Animate scrolling to an anchor.
 ```javascript
 var scroll = new SmoothScroll();
 scroll.animateScroll(
-	anchor, // Node to scroll to. ex. document.querySelector( '#bazinga' )
-	toggle, // Node that toggles the animation, OR an integer. ex. document.querySelector( '#toggle' )
+	anchor, // Node to scroll to. ex. document.querySelector('#bazinga')
+	toggle, // Node that toggles the animation, OR an integer. ex. document.querySelector('#toggle')
 	options // Classes and callbacks. Same options as those passed into the init() function.
 );
 ```
@@ -240,18 +240,18 @@ scroll.animateScroll(
 
 ```javascript
 var scroll = new SmoothScroll();
-var anchor = document.querySelector( '#bazinga' );
-scroll.animateScroll( anchor );
+var anchor = document.querySelector('#bazinga');
+scroll.animateScroll(anchor);
 ```
 
 **Example 2**
 
 ```javascript
 var scroll = new SmoothScroll();
-var anchor = document.querySelector( '#bazinga' );
+var anchor = document.querySelector('#bazinga');
 var toggle = document.querySelector('#toggle');
 var options = { speed: 1000, easing: 'easeOutCubic' };
-scroll.animateScroll( anchor, toggle, options );
+scroll.animateScroll(anchor, toggle, options);
 ```
 
 **Example 3**
@@ -259,7 +259,7 @@ scroll.animateScroll( anchor, toggle, options );
 ```javascript
 // You can optionally pass in a y-position to scroll to as an integer
 var scroll = new SmoothScroll();
-scroll.animateScroll( 750 );
+scroll.animateScroll(750);
 ```
 
 #### cancelScroll()
diff --git a/dist/smooth-scroll.js b/dist/smooth-scroll.js
index c0741d2..5f3e3de 100755
--- a/dist/smooth-scroll.js
+++ b/dist/smooth-scroll.js
@@ -1,5 +1,5 @@
 /*!
- * smooth-scroll v14.0.0: Animate scrolling to anchor links
+ * smooth-scroll v14.0.1: Animate scrolling to anchor links
  * (c) 2018 Chris Ferdinandi
  * MIT License
  * http://github.com/cferdinandi/smooth-scroll
@@ -288,12 +288,17 @@
 	 */
 	var adjustFocus = function (anchor, endLocation, isNum) {
 
+		// Is scrolling to top of page, blur
+		if (anchor === 0) {
+			document.body.focus();
+		}
+
 		// Don't run if scrolling to a number on the page
 		if (isNum) return;
 
 		// Otherwise, bring anchor element into focus
 		anchor.focus();
-		if (document.activeElement.id !== anchor.id) {
+		if (document.activeElement !== anchor) {
 			anchor.setAttribute('tabindex', '-1');
 			anchor.focus();
 			anchor.style.outline = 'none';
@@ -304,10 +309,14 @@
 
 	/**
 	 * Update the URL
-	 * @param  {Node}   anchor  The anchor that was scrolled to
-	 * @param  {Object} options Settings for Smooth Scroll
+	 * @param  {Node}    anchor  The anchor that was scrolled to
+	 * @param  {Boolean} isNum   If true, anchor is a number
+	 * @param  {Object}  options Settings for Smooth Scroll
 	 */
-	var updateURL = function (anchor, options) {
+	var updateURL = function (anchor, isNum, options) {
+
+		// Bail if the anchor is a number
+		if (isNum) return;
 
 		// Verify that pushState is supported and the updateURL option is enabled
 		if (!history.pushState || !options.updateURL) return;
@@ -319,7 +328,7 @@
 				anchor: anchor.id
 			},
 			document.title,
-			anchor === 0 ? '#top' : '#' + anchor.id
+			anchor === document.documentElement ? '#top' : '#' + anchor.id
 		);
 
 	};
@@ -459,7 +468,7 @@
 			}
 
 			// Update the URL
-			updateURL(anchor, animateSettings);
+			updateURL(anchor, isNum, animateSettings);
 
 			// Emit a custom event
 			emitEvent('scrollStart', animateSettings, anchor, toggle);
@@ -491,21 +500,9 @@
 			// Get an escaped version of the hash
 			var hash = escapeCharacters(decode(toggle.hash));
 
-			// If the hash is empty, scroll to the top of the page
-			if (settings.topOnEmptyHash && ['#', '#top'].indexOf(hash) !== -1) {
-
-				// Prevent default link behavior
-				event.preventDefault();
-
-				// Scroll to the top of the page
-				smoothScroll.animateScroll(0, toggle);
-
-				return;
-
-			}
-
 			// Get the anchored element
-			anchor = document.querySelector(hash);
+			var anchor = settings.topOnEmptyHash && hash === '#' ? document.documentElement : document.querySelector(hash);
+			anchor = !anchor && hash === '#top' ? document.documentElement : anchor;
 
 			// If anchored element exists, scroll to it
 			if (!anchor) return;
diff --git a/dist/smooth-scroll.min.js b/dist/smooth-scroll.min.js
index 9544052..75085f2 100755
--- a/dist/smooth-scroll.min.js
+++ b/dist/smooth-scroll.min.js
@@ -1,2 +1,2 @@
-/*! smooth-scroll v14.0.0 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
-!(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},n=function(){return"querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype},o=function(){for(var e={},t=0;t<arguments.length;t++)!(function(t){for(var n in t)t.hasOwnProperty(n)&&(e[n]=t[n])})(arguments[t]);return e},r=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)},a=function(t){return parseInt(e.getComputedStyle(t).height,10)},i=function(e){var t;try{t=decodeURIComponent(e)}catch(n){t=e}return t},u=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,r=-1,a="",i=n.charCodeAt(0);++r<o;){if(0===(t=n.charCodeAt(r)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===r&&t>=48&&t<=57||1===r&&t>=48&&t<=57&&45===i?a+="\\"+t.toString(16)+" ":a+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(r):"\\"+n.charAt(r)}var u;try{u=decodeURIComponent("#"+a)}catch(e){u="#"+a}return u},c=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(e,t,n){var o=0;if(e.offsetParent)do{o+=e.offsetTop,e=e.offsetParent}while(e);return o=Math.max(o-t-n,0)},f=function(e){return e?a(e)+e.offsetTop:0},d=function(t,n,o){o||(t.focus(),document.activeElement.id!==t.id&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},m=function(e,t){history.pushState&&t.updateURL&&history.pushState({smoothScroll:JSON.stringify(t),anchor:e.id},document.title,0===e?"#top":"#"+e.id)},h=function(t,n,o,r){if(n.emitEvents&&"function"==typeof e.CustomEvent){var a=new CustomEvent(t,{bubbles:!0,detail:{anchor:o,toggle:r}});document.dispatchEvent(a)}};return function(a,p){var g,v,y,S,E,b,O,I={};I.cancelScroll=function(e){cancelAnimationFrame(O),O=null,e||h("scrollCancel",g)},I.animateScroll=function(n,r,a){var i=o(g||t,a||{}),u="[object Number]"===Object.prototype.toString.call(n),p=u||!n.tagName?null:n;if(u||p){var v=e.pageYOffset;i.header&&!S&&(S=document.querySelector(i.header)),E||(E=f(S));var y,b,C,L=u?n:l(p,E,parseInt("function"==typeof i.offset?i.offset():i.offset,10)),w=L-v,A=s(),H=0,Q=function(t,o){var a=e.pageYOffset;if(t==o||a==o||(v<o&&e.innerHeight+a)>=A)return I.cancelScroll(!0),d(n,o,u),h("scrollStop",i,n,r),y=null,O=null,!0},q=function(t){y||(y=t),H+=t-y,b=H/parseInt(i.speed,10),b=b>1?1:b,C=v+w*c(i,b),e.scrollTo(0,Math.floor(C)),Q(C,L)||(O=e.requestAnimationFrame(q),y=t)};0===e.pageYOffset&&e.scrollTo(0,0),m(n,i),h("scrollStart",i,n,r),I.cancelScroll(!0),e.requestAnimationFrame(q)}};var C=function(t){if(!r()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&(y=t.target.closest(a))&&"a"===y.tagName.toLowerCase()&&!t.target.closest(g.ignore)&&y.hostname===e.location.hostname&&y.pathname===e.location.pathname&&/#/.test(y.href)){var n=u(i(y.hash));if(g.topOnEmptyHash&&-1!==["#","#top"].indexOf(n))return t.preventDefault(),void I.animateScroll(0,y);v=document.querySelector(n),v&&(t.preventDefault(),I.animateScroll(v,y))}},L=function(e){if(history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(g)&&history.state.anchor){var t=document.querySelector(u(i(history.state.anchor)));t&&I.animateScroll(t,null,{updateURL:!1})}},w=function(e){b||(b=setTimeout((function(){b=null,E=f(S)}),66))};return I.destroy=function(){g&&(document.removeEventListener("click",C,!1),e.removeEventListener("resize",w,!1),e.removeEventListener("popstate",L,!1),I.cancelScroll(),g=null,v=null,y=null,S=null,E=null,b=null,O=null)},I.init=function(r){n()&&(I.destroy(),g=o(t,r||{}),S=g.header?document.querySelector(g.header):null,E=f(S),document.addEventListener("click",C,!1),S&&e.addEventListener("resize",w,!1),g.updateURL&&g.popstate&&e.addEventListener("popstate",L,!1))},I.init(p),I}}));
\ No newline at end of file
+/*! smooth-scroll v14.0.1 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
+!(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},n=function(){return"querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype},o=function(){for(var e={},t=0;t<arguments.length;t++)!(function(t){for(var n in t)t.hasOwnProperty(n)&&(e[n]=t[n])})(arguments[t]);return e},r=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)},a=function(t){return parseInt(e.getComputedStyle(t).height,10)},i=function(e){var t;try{t=decodeURIComponent(e)}catch(n){t=e}return t},u=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,r=-1,a="",i=n.charCodeAt(0);++r<o;){if(0===(t=n.charCodeAt(r)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===r&&t>=48&&t<=57||1===r&&t>=48&&t<=57&&45===i?a+="\\"+t.toString(16)+" ":a+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(r):"\\"+n.charAt(r)}var u;try{u=decodeURIComponent("#"+a)}catch(e){u="#"+a}return u},c=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(e,t,n){var o=0;if(e.offsetParent)do{o+=e.offsetTop,e=e.offsetParent}while(e);return o=Math.max(o-t-n,0)},f=function(e){return e?a(e)+e.offsetTop:0},d=function(t,n,o){0===t&&document.body.focus(),o||(t.focus(),document.activeElement!==t&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},m=function(e,t,n){t||history.pushState&&n.updateURL&&history.pushState({smoothScroll:JSON.stringify(n),anchor:e.id},document.title,e===document.documentElement?"#top":"#"+e.id)},h=function(t,n,o,r){if(n.emitEvents&&"function"==typeof e.CustomEvent){var a=new CustomEvent(t,{bubbles:!0,detail:{anchor:o,toggle:r}});document.dispatchEvent(a)}};return function(a,p){var g,v,y,S,E,b,O,I={};I.cancelScroll=function(e){cancelAnimationFrame(O),O=null,e||h("scrollCancel",g)},I.animateScroll=function(n,r,a){var i=o(g||t,a||{}),u="[object Number]"===Object.prototype.toString.call(n),p=u||!n.tagName?null:n;if(u||p){var v=e.pageYOffset;i.header&&!S&&(S=document.querySelector(i.header)),E||(E=f(S));var y,b,C,L=u?n:l(p,E,parseInt("function"==typeof i.offset?i.offset():i.offset,10)),w=L-v,A=s(),H=0,Q=function(t,o){var a=e.pageYOffset;if(t==o||a==o||(v<o&&e.innerHeight+a)>=A)return I.cancelScroll(!0),d(n,o,u),h("scrollStop",i,n,r),y=null,O=null,!0},q=function(t){y||(y=t),H+=t-y,b=H/parseInt(i.speed,10),b=b>1?1:b,C=v+w*c(i,b),e.scrollTo(0,Math.floor(C)),Q(C,L)||(O=e.requestAnimationFrame(q),y=t)};0===e.pageYOffset&&e.scrollTo(0,0),m(n,u,i),h("scrollStart",i,n,r),I.cancelScroll(!0),e.requestAnimationFrame(q)}};var C=function(t){if(!r()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&(y=t.target.closest(a))&&"a"===y.tagName.toLowerCase()&&!t.target.closest(g.ignore)&&y.hostname===e.location.hostname&&y.pathname===e.location.pathname&&/#/.test(y.href)){var n=u(i(y.hash)),o=g.topOnEmptyHash&&"#"===n?document.documentElement:document.querySelector(n);o=o||"#top"!==n?o:document.documentElement,o&&(t.preventDefault(),I.animateScroll(o,y))}},L=function(e){if(history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(g)&&history.state.anchor){var t=document.querySelector(u(i(history.state.anchor)));t&&I.animateScroll(t,null,{updateURL:!1})}},w=function(e){b||(b=setTimeout((function(){b=null,E=f(S)}),66))};return I.destroy=function(){g&&(document.removeEventListener("click",C,!1),e.removeEventListener("resize",w,!1),e.removeEventListener("popstate",L,!1),I.cancelScroll(),g=null,v=null,y=null,S=null,E=null,b=null,O=null)},I.init=function(r){n()&&(I.destroy(),g=o(t,r||{}),S=g.header?document.querySelector(g.header):null,E=f(S),document.addEventListener("click",C,!1),S&&e.addEventListener("resize",w,!1),g.updateURL&&g.popstate&&e.addEventListener("popstate",L,!1))},I.init(p),I}}));
\ No newline at end of file
diff --git a/dist/smooth-scroll.polyfills.js b/dist/smooth-scroll.polyfills.js
index 265ad13..c7149c7 100755
--- a/dist/smooth-scroll.polyfills.js
+++ b/dist/smooth-scroll.polyfills.js
@@ -1,5 +1,5 @@
 /*!
- * smooth-scroll v14.0.0: Animate scrolling to anchor links
+ * smooth-scroll v14.0.1: Animate scrolling to anchor links
  * (c) 2018 Chris Ferdinandi
  * MIT License
  * http://github.com/cferdinandi/smooth-scroll
@@ -358,12 +358,17 @@ if (window.Element && !Element.prototype.closest) {
 	 */
 	var adjustFocus = function (anchor, endLocation, isNum) {
 
+		// Is scrolling to top of page, blur
+		if (anchor === 0) {
+			document.body.focus();
+		}
+
 		// Don't run if scrolling to a number on the page
 		if (isNum) return;
 
 		// Otherwise, bring anchor element into focus
 		anchor.focus();
-		if (document.activeElement.id !== anchor.id) {
+		if (document.activeElement !== anchor) {
 			anchor.setAttribute('tabindex', '-1');
 			anchor.focus();
 			anchor.style.outline = 'none';
@@ -374,10 +379,14 @@ if (window.Element && !Element.prototype.closest) {
 
 	/**
 	 * Update the URL
-	 * @param  {Node}   anchor  The anchor that was scrolled to
-	 * @param  {Object} options Settings for Smooth Scroll
+	 * @param  {Node}    anchor  The anchor that was scrolled to
+	 * @param  {Boolean} isNum   If true, anchor is a number
+	 * @param  {Object}  options Settings for Smooth Scroll
 	 */
-	var updateURL = function (anchor, options) {
+	var updateURL = function (anchor, isNum, options) {
+
+		// Bail if the anchor is a number
+		if (isNum) return;
 
 		// Verify that pushState is supported and the updateURL option is enabled
 		if (!history.pushState || !options.updateURL) return;
@@ -389,7 +398,7 @@ if (window.Element && !Element.prototype.closest) {
 				anchor: anchor.id
 			},
 			document.title,
-			anchor === 0 ? '#top' : '#' + anchor.id
+			anchor === document.documentElement ? '#top' : '#' + anchor.id
 		);
 
 	};
@@ -529,7 +538,7 @@ if (window.Element && !Element.prototype.closest) {
 			}
 
 			// Update the URL
-			updateURL(anchor, animateSettings);
+			updateURL(anchor, isNum, animateSettings);
 
 			// Emit a custom event
 			emitEvent('scrollStart', animateSettings, anchor, toggle);
@@ -561,21 +570,9 @@ if (window.Element && !Element.prototype.closest) {
 			// Get an escaped version of the hash
 			var hash = escapeCharacters(decode(toggle.hash));
 
-			// If the hash is empty, scroll to the top of the page
-			if (settings.topOnEmptyHash && ['#', '#top'].indexOf(hash) !== -1) {
-
-				// Prevent default link behavior
-				event.preventDefault();
-
-				// Scroll to the top of the page
-				smoothScroll.animateScroll(0, toggle);
-
-				return;
-
-			}
-
 			// Get the anchored element
-			anchor = document.querySelector(hash);
+			var anchor = settings.topOnEmptyHash && hash === '#' ? document.documentElement : document.querySelector(hash);
+			anchor = !anchor && hash === '#top' ? document.documentElement : anchor;
 
 			// If anchored element exists, scroll to it
 			if (!anchor) return;
diff --git a/dist/smooth-scroll.polyfills.min.js b/dist/smooth-scroll.polyfills.min.js
index 46ad04c..5a61d9d 100755
--- a/dist/smooth-scroll.polyfills.min.js
+++ b/dist/smooth-scroll.polyfills.min.js
@@ -1,2 +1,2 @@
-/*! smooth-scroll v14.0.0 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
-window.Element&&!Element.prototype.closest&&(Element.prototype.closest=function(e){var t,n=(this.document||this.ownerDocument).querySelectorAll(e),o=this;do{for(t=n.length;--t>=0&&n.item(t)!==o;);}while(t<0&&(o=o.parentElement));return o}),(function(){function e(e,t){t=t||{bubbles:!1,cancelable:!1,detail:void 0};var n=document.createEvent("CustomEvent");return n.initCustomEvent(e,t.bubbles,t.cancelable,t.detail),n}if("function"==typeof window.CustomEvent)return!1;e.prototype=window.Event.prototype,window.CustomEvent=e})(),(function(){for(var e=0,t=["ms","moz","webkit","o"],n=0;n<t.length&&!window.requestAnimationFrame;++n)window.requestAnimationFrame=window[t[n]+"RequestAnimationFrame"],window.cancelAnimationFrame=window[t[n]+"CancelAnimationFrame"]||window[t[n]+"CancelRequestAnimationFrame"];window.requestAnimationFrame||(window.requestAnimationFrame=function(t,n){var o=(new Date).getTime(),i=Math.max(0,16-(o-e)),r=window.setTimeout((function(){t(o+i)}),i);return e=o+i,r}),window.cancelAnimationFrame||(window.cancelAnimationFrame=function(e){clearTimeout(e)})})(),(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},n=function(){return"querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype},o=function(){for(var e={},t=0;t<arguments.length;t++)!(function(t){for(var n in t)t.hasOwnProperty(n)&&(e[n]=t[n])})(arguments[t]);return e},i=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)},r=function(t){return parseInt(e.getComputedStyle(t).height,10)},a=function(e){var t;try{t=decodeURIComponent(e)}catch(n){t=e}return t},u=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,i=-1,r="",a=n.charCodeAt(0);++i<o;){if(0===(t=n.charCodeAt(i)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===i&&t>=48&&t<=57||1===i&&t>=48&&t<=57&&45===a?r+="\\"+t.toString(16)+" ":r+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(i):"\\"+n.charAt(i)}var u;try{u=decodeURIComponent("#"+r)}catch(e){u="#"+r}return u},c=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(e,t,n){var o=0;if(e.offsetParent)do{o+=e.offsetTop,e=e.offsetParent}while(e);return o=Math.max(o-t-n,0)},m=function(e){return e?r(e)+e.offsetTop:0},d=function(t,n,o){o||(t.focus(),document.activeElement.id!==t.id&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},f=function(e,t){history.pushState&&t.updateURL&&history.pushState({smoothScroll:JSON.stringify(t),anchor:e.id},document.title,0===e?"#top":"#"+e.id)},h=function(t,n,o,i){if(n.emitEvents&&"function"==typeof e.CustomEvent){var r=new CustomEvent(t,{bubbles:!0,detail:{anchor:o,toggle:i}});document.dispatchEvent(r)}};return function(r,p){var g,v,w,y,E,b,S,A={};A.cancelScroll=function(e){cancelAnimationFrame(S),S=null,e||h("scrollCancel",g)},A.animateScroll=function(n,i,r){var a=o(g||t,r||{}),u="[object Number]"===Object.prototype.toString.call(n),p=u||!n.tagName?null:n;if(u||p){var v=e.pageYOffset;a.header&&!y&&(y=document.querySelector(a.header)),E||(E=m(y));var w,b,C,O=u?n:l(p,E,parseInt("function"==typeof a.offset?a.offset():a.offset,10)),I=O-v,q=s(),F=0,L=function(t,o){var r=e.pageYOffset;if(t==o||r==o||(v<o&&e.innerHeight+r)>=q)return A.cancelScroll(!0),d(n,o,u),h("scrollStop",a,n,i),w=null,S=null,!0},H=function(t){w||(w=t),F+=t-w,b=F/parseInt(a.speed,10),b=b>1?1:b,C=v+I*c(a,b),e.scrollTo(0,Math.floor(C)),L(C,O)||(S=e.requestAnimationFrame(H),w=t)};0===e.pageYOffset&&e.scrollTo(0,0),f(n,a),h("scrollStart",a,n,i),A.cancelScroll(!0),e.requestAnimationFrame(H)}};var C=function(t){if(!i()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&(w=t.target.closest(r))&&"a"===w.tagName.toLowerCase()&&!t.target.closest(g.ignore)&&w.hostname===e.location.hostname&&w.pathname===e.location.pathname&&/#/.test(w.href)){var n=u(a(w.hash));if(g.topOnEmptyHash&&-1!==["#","#top"].indexOf(n))return t.preventDefault(),void A.animateScroll(0,w);v=document.querySelector(n),v&&(t.preventDefault(),A.animateScroll(v,w))}},O=function(e){if(history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(g)&&history.state.anchor){var t=document.querySelector(u(a(history.state.anchor)));t&&A.animateScroll(t,null,{updateURL:!1})}},I=function(e){b||(b=setTimeout((function(){b=null,E=m(y)}),66))};return A.destroy=function(){g&&(document.removeEventListener("click",C,!1),e.removeEventListener("resize",I,!1),e.removeEventListener("popstate",O,!1),A.cancelScroll(),g=null,v=null,w=null,y=null,E=null,b=null,S=null)},A.init=function(i){n()&&(A.destroy(),g=o(t,i||{}),y=g.header?document.querySelector(g.header):null,E=m(y),document.addEventListener("click",C,!1),y&&e.addEventListener("resize",I,!1),g.updateURL&&g.popstate&&e.addEventListener("popstate",O,!1))},A.init(p),A}}));
\ No newline at end of file
+/*! smooth-scroll v14.0.1 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
+window.Element&&!Element.prototype.closest&&(Element.prototype.closest=function(e){var t,n=(this.document||this.ownerDocument).querySelectorAll(e),o=this;do{for(t=n.length;--t>=0&&n.item(t)!==o;);}while(t<0&&(o=o.parentElement));return o}),(function(){function e(e,t){t=t||{bubbles:!1,cancelable:!1,detail:void 0};var n=document.createEvent("CustomEvent");return n.initCustomEvent(e,t.bubbles,t.cancelable,t.detail),n}if("function"==typeof window.CustomEvent)return!1;e.prototype=window.Event.prototype,window.CustomEvent=e})(),(function(){for(var e=0,t=["ms","moz","webkit","o"],n=0;n<t.length&&!window.requestAnimationFrame;++n)window.requestAnimationFrame=window[t[n]+"RequestAnimationFrame"],window.cancelAnimationFrame=window[t[n]+"CancelAnimationFrame"]||window[t[n]+"CancelRequestAnimationFrame"];window.requestAnimationFrame||(window.requestAnimationFrame=function(t,n){var o=(new Date).getTime(),i=Math.max(0,16-(o-e)),a=window.setTimeout((function(){t(o+i)}),i);return e=o+i,a}),window.cancelAnimationFrame||(window.cancelAnimationFrame=function(e){clearTimeout(e)})})(),(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},n=function(){return"querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype},o=function(){for(var e={},t=0;t<arguments.length;t++)!(function(t){for(var n in t)t.hasOwnProperty(n)&&(e[n]=t[n])})(arguments[t]);return e},i=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)},a=function(t){return parseInt(e.getComputedStyle(t).height,10)},r=function(e){var t;try{t=decodeURIComponent(e)}catch(n){t=e}return t},u=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,i=-1,a="",r=n.charCodeAt(0);++i<o;){if(0===(t=n.charCodeAt(i)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===i&&t>=48&&t<=57||1===i&&t>=48&&t<=57&&45===r?a+="\\"+t.toString(16)+" ":a+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(i):"\\"+n.charAt(i)}var u;try{u=decodeURIComponent("#"+a)}catch(e){u="#"+a}return u},c=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(e,t,n){var o=0;if(e.offsetParent)do{o+=e.offsetTop,e=e.offsetParent}while(e);return o=Math.max(o-t-n,0)},m=function(e){return e?a(e)+e.offsetTop:0},d=function(t,n,o){0===t&&document.body.focus(),o||(t.focus(),document.activeElement!==t&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},f=function(e,t,n){t||history.pushState&&n.updateURL&&history.pushState({smoothScroll:JSON.stringify(n),anchor:e.id},document.title,e===document.documentElement?"#top":"#"+e.id)},h=function(t,n,o,i){if(n.emitEvents&&"function"==typeof e.CustomEvent){var a=new CustomEvent(t,{bubbles:!0,detail:{anchor:o,toggle:i}});document.dispatchEvent(a)}};return function(a,p){var g,v,w,y,E,b,S,A={};A.cancelScroll=function(e){cancelAnimationFrame(S),S=null,e||h("scrollCancel",g)},A.animateScroll=function(n,i,a){var r=o(g||t,a||{}),u="[object Number]"===Object.prototype.toString.call(n),p=u||!n.tagName?null:n;if(u||p){var v=e.pageYOffset;r.header&&!y&&(y=document.querySelector(r.header)),E||(E=m(y));var w,b,C,O=u?n:l(p,E,parseInt("function"==typeof r.offset?r.offset():r.offset,10)),I=O-v,q=s(),F=0,L=function(t,o){var a=e.pageYOffset;if(t==o||a==o||(v<o&&e.innerHeight+a)>=q)return A.cancelScroll(!0),d(n,o,u),h("scrollStop",r,n,i),w=null,S=null,!0},H=function(t){w||(w=t),F+=t-w,b=F/parseInt(r.speed,10),b=b>1?1:b,C=v+I*c(r,b),e.scrollTo(0,Math.floor(C)),L(C,O)||(S=e.requestAnimationFrame(H),w=t)};0===e.pageYOffset&&e.scrollTo(0,0),f(n,u,r),h("scrollStart",r,n,i),A.cancelScroll(!0),e.requestAnimationFrame(H)}};var C=function(t){if(!i()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&(w=t.target.closest(a))&&"a"===w.tagName.toLowerCase()&&!t.target.closest(g.ignore)&&w.hostname===e.location.hostname&&w.pathname===e.location.pathname&&/#/.test(w.href)){var n=u(r(w.hash)),o=g.topOnEmptyHash&&"#"===n?document.documentElement:document.querySelector(n);o=o||"#top"!==n?o:document.documentElement,o&&(t.preventDefault(),A.animateScroll(o,w))}},O=function(e){if(history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(g)&&history.state.anchor){var t=document.querySelector(u(r(history.state.anchor)));t&&A.animateScroll(t,null,{updateURL:!1})}},I=function(e){b||(b=setTimeout((function(){b=null,E=m(y)}),66))};return A.destroy=function(){g&&(document.removeEventListener("click",C,!1),e.removeEventListener("resize",I,!1),e.removeEventListener("popstate",O,!1),A.cancelScroll(),g=null,v=null,w=null,y=null,E=null,b=null,S=null)},A.init=function(i){n()&&(A.destroy(),g=o(t,i||{}),y=g.header?document.querySelector(g.header):null,E=m(y),document.addEventListener("click",C,!1),y&&e.addEventListener("resize",I,!1),g.updateURL&&g.popstate&&e.addEventListener("popstate",O,!1))},A.init(p),A}}));
\ No newline at end of file
diff --git a/docs/dist/smooth-scroll.js b/docs/dist/smooth-scroll.js
index c0741d2..5f3e3de 100755
--- a/docs/dist/smooth-scroll.js
+++ b/docs/dist/smooth-scroll.js
@@ -1,5 +1,5 @@
 /*!
- * smooth-scroll v14.0.0: Animate scrolling to anchor links
+ * smooth-scroll v14.0.1: Animate scrolling to anchor links
  * (c) 2018 Chris Ferdinandi
  * MIT License
  * http://github.com/cferdinandi/smooth-scroll
@@ -288,12 +288,17 @@
 	 */
 	var adjustFocus = function (anchor, endLocation, isNum) {
 
+		// Is scrolling to top of page, blur
+		if (anchor === 0) {
+			document.body.focus();
+		}
+
 		// Don't run if scrolling to a number on the page
 		if (isNum) return;
 
 		// Otherwise, bring anchor element into focus
 		anchor.focus();
-		if (document.activeElement.id !== anchor.id) {
+		if (document.activeElement !== anchor) {
 			anchor.setAttribute('tabindex', '-1');
 			anchor.focus();
 			anchor.style.outline = 'none';
@@ -304,10 +309,14 @@
 
 	/**
 	 * Update the URL
-	 * @param  {Node}   anchor  The anchor that was scrolled to
-	 * @param  {Object} options Settings for Smooth Scroll
+	 * @param  {Node}    anchor  The anchor that was scrolled to
+	 * @param  {Boolean} isNum   If true, anchor is a number
+	 * @param  {Object}  options Settings for Smooth Scroll
 	 */
-	var updateURL = function (anchor, options) {
+	var updateURL = function (anchor, isNum, options) {
+
+		// Bail if the anchor is a number
+		if (isNum) return;
 
 		// Verify that pushState is supported and the updateURL option is enabled
 		if (!history.pushState || !options.updateURL) return;
@@ -319,7 +328,7 @@
 				anchor: anchor.id
 			},
 			document.title,
-			anchor === 0 ? '#top' : '#' + anchor.id
+			anchor === document.documentElement ? '#top' : '#' + anchor.id
 		);
 
 	};
@@ -459,7 +468,7 @@
 			}
 
 			// Update the URL
-			updateURL(anchor, animateSettings);
+			updateURL(anchor, isNum, animateSettings);
 
 			// Emit a custom event
 			emitEvent('scrollStart', animateSettings, anchor, toggle);
@@ -491,21 +500,9 @@
 			// Get an escaped version of the hash
 			var hash = escapeCharacters(decode(toggle.hash));
 
-			// If the hash is empty, scroll to the top of the page
-			if (settings.topOnEmptyHash && ['#', '#top'].indexOf(hash) !== -1) {
-
-				// Prevent default link behavior
-				event.preventDefault();
-
-				// Scroll to the top of the page
-				smoothScroll.animateScroll(0, toggle);
-
-				return;
-
-			}
-
 			// Get the anchored element
-			anchor = document.querySelector(hash);
+			var anchor = settings.topOnEmptyHash && hash === '#' ? document.documentElement : document.querySelector(hash);
+			anchor = !anchor && hash === '#top' ? document.documentElement : anchor;
 
 			// If anchored element exists, scroll to it
 			if (!anchor) return;
diff --git a/docs/dist/smooth-scroll.min.js b/docs/dist/smooth-scroll.min.js
index 9544052..75085f2 100755
--- a/docs/dist/smooth-scroll.min.js
+++ b/docs/dist/smooth-scroll.min.js
@@ -1,2 +1,2 @@
-/*! smooth-scroll v14.0.0 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
-!(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},n=function(){return"querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype},o=function(){for(var e={},t=0;t<arguments.length;t++)!(function(t){for(var n in t)t.hasOwnProperty(n)&&(e[n]=t[n])})(arguments[t]);return e},r=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)},a=function(t){return parseInt(e.getComputedStyle(t).height,10)},i=function(e){var t;try{t=decodeURIComponent(e)}catch(n){t=e}return t},u=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,r=-1,a="",i=n.charCodeAt(0);++r<o;){if(0===(t=n.charCodeAt(r)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===r&&t>=48&&t<=57||1===r&&t>=48&&t<=57&&45===i?a+="\\"+t.toString(16)+" ":a+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(r):"\\"+n.charAt(r)}var u;try{u=decodeURIComponent("#"+a)}catch(e){u="#"+a}return u},c=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(e,t,n){var o=0;if(e.offsetParent)do{o+=e.offsetTop,e=e.offsetParent}while(e);return o=Math.max(o-t-n,0)},f=function(e){return e?a(e)+e.offsetTop:0},d=function(t,n,o){o||(t.focus(),document.activeElement.id!==t.id&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},m=function(e,t){history.pushState&&t.updateURL&&history.pushState({smoothScroll:JSON.stringify(t),anchor:e.id},document.title,0===e?"#top":"#"+e.id)},h=function(t,n,o,r){if(n.emitEvents&&"function"==typeof e.CustomEvent){var a=new CustomEvent(t,{bubbles:!0,detail:{anchor:o,toggle:r}});document.dispatchEvent(a)}};return function(a,p){var g,v,y,S,E,b,O,I={};I.cancelScroll=function(e){cancelAnimationFrame(O),O=null,e||h("scrollCancel",g)},I.animateScroll=function(n,r,a){var i=o(g||t,a||{}),u="[object Number]"===Object.prototype.toString.call(n),p=u||!n.tagName?null:n;if(u||p){var v=e.pageYOffset;i.header&&!S&&(S=document.querySelector(i.header)),E||(E=f(S));var y,b,C,L=u?n:l(p,E,parseInt("function"==typeof i.offset?i.offset():i.offset,10)),w=L-v,A=s(),H=0,Q=function(t,o){var a=e.pageYOffset;if(t==o||a==o||(v<o&&e.innerHeight+a)>=A)return I.cancelScroll(!0),d(n,o,u),h("scrollStop",i,n,r),y=null,O=null,!0},q=function(t){y||(y=t),H+=t-y,b=H/parseInt(i.speed,10),b=b>1?1:b,C=v+w*c(i,b),e.scrollTo(0,Math.floor(C)),Q(C,L)||(O=e.requestAnimationFrame(q),y=t)};0===e.pageYOffset&&e.scrollTo(0,0),m(n,i),h("scrollStart",i,n,r),I.cancelScroll(!0),e.requestAnimationFrame(q)}};var C=function(t){if(!r()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&(y=t.target.closest(a))&&"a"===y.tagName.toLowerCase()&&!t.target.closest(g.ignore)&&y.hostname===e.location.hostname&&y.pathname===e.location.pathname&&/#/.test(y.href)){var n=u(i(y.hash));if(g.topOnEmptyHash&&-1!==["#","#top"].indexOf(n))return t.preventDefault(),void I.animateScroll(0,y);v=document.querySelector(n),v&&(t.preventDefault(),I.animateScroll(v,y))}},L=function(e){if(history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(g)&&history.state.anchor){var t=document.querySelector(u(i(history.state.anchor)));t&&I.animateScroll(t,null,{updateURL:!1})}},w=function(e){b||(b=setTimeout((function(){b=null,E=f(S)}),66))};return I.destroy=function(){g&&(document.removeEventListener("click",C,!1),e.removeEventListener("resize",w,!1),e.removeEventListener("popstate",L,!1),I.cancelScroll(),g=null,v=null,y=null,S=null,E=null,b=null,O=null)},I.init=function(r){n()&&(I.destroy(),g=o(t,r||{}),S=g.header?document.querySelector(g.header):null,E=f(S),document.addEventListener("click",C,!1),S&&e.addEventListener("resize",w,!1),g.updateURL&&g.popstate&&e.addEventListener("popstate",L,!1))},I.init(p),I}}));
\ No newline at end of file
+/*! smooth-scroll v14.0.1 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
+!(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},n=function(){return"querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype},o=function(){for(var e={},t=0;t<arguments.length;t++)!(function(t){for(var n in t)t.hasOwnProperty(n)&&(e[n]=t[n])})(arguments[t]);return e},r=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)},a=function(t){return parseInt(e.getComputedStyle(t).height,10)},i=function(e){var t;try{t=decodeURIComponent(e)}catch(n){t=e}return t},u=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,r=-1,a="",i=n.charCodeAt(0);++r<o;){if(0===(t=n.charCodeAt(r)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===r&&t>=48&&t<=57||1===r&&t>=48&&t<=57&&45===i?a+="\\"+t.toString(16)+" ":a+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(r):"\\"+n.charAt(r)}var u;try{u=decodeURIComponent("#"+a)}catch(e){u="#"+a}return u},c=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(e,t,n){var o=0;if(e.offsetParent)do{o+=e.offsetTop,e=e.offsetParent}while(e);return o=Math.max(o-t-n,0)},f=function(e){return e?a(e)+e.offsetTop:0},d=function(t,n,o){0===t&&document.body.focus(),o||(t.focus(),document.activeElement!==t&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},m=function(e,t,n){t||history.pushState&&n.updateURL&&history.pushState({smoothScroll:JSON.stringify(n),anchor:e.id},document.title,e===document.documentElement?"#top":"#"+e.id)},h=function(t,n,o,r){if(n.emitEvents&&"function"==typeof e.CustomEvent){var a=new CustomEvent(t,{bubbles:!0,detail:{anchor:o,toggle:r}});document.dispatchEvent(a)}};return function(a,p){var g,v,y,S,E,b,O,I={};I.cancelScroll=function(e){cancelAnimationFrame(O),O=null,e||h("scrollCancel",g)},I.animateScroll=function(n,r,a){var i=o(g||t,a||{}),u="[object Number]"===Object.prototype.toString.call(n),p=u||!n.tagName?null:n;if(u||p){var v=e.pageYOffset;i.header&&!S&&(S=document.querySelector(i.header)),E||(E=f(S));var y,b,C,L=u?n:l(p,E,parseInt("function"==typeof i.offset?i.offset():i.offset,10)),w=L-v,A=s(),H=0,Q=function(t,o){var a=e.pageYOffset;if(t==o||a==o||(v<o&&e.innerHeight+a)>=A)return I.cancelScroll(!0),d(n,o,u),h("scrollStop",i,n,r),y=null,O=null,!0},q=function(t){y||(y=t),H+=t-y,b=H/parseInt(i.speed,10),b=b>1?1:b,C=v+w*c(i,b),e.scrollTo(0,Math.floor(C)),Q(C,L)||(O=e.requestAnimationFrame(q),y=t)};0===e.pageYOffset&&e.scrollTo(0,0),m(n,u,i),h("scrollStart",i,n,r),I.cancelScroll(!0),e.requestAnimationFrame(q)}};var C=function(t){if(!r()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&(y=t.target.closest(a))&&"a"===y.tagName.toLowerCase()&&!t.target.closest(g.ignore)&&y.hostname===e.location.hostname&&y.pathname===e.location.pathname&&/#/.test(y.href)){var n=u(i(y.hash)),o=g.topOnEmptyHash&&"#"===n?document.documentElement:document.querySelector(n);o=o||"#top"!==n?o:document.documentElement,o&&(t.preventDefault(),I.animateScroll(o,y))}},L=function(e){if(history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(g)&&history.state.anchor){var t=document.querySelector(u(i(history.state.anchor)));t&&I.animateScroll(t,null,{updateURL:!1})}},w=function(e){b||(b=setTimeout((function(){b=null,E=f(S)}),66))};return I.destroy=function(){g&&(document.removeEventListener("click",C,!1),e.removeEventListener("resize",w,!1),e.removeEventListener("popstate",L,!1),I.cancelScroll(),g=null,v=null,y=null,S=null,E=null,b=null,O=null)},I.init=function(r){n()&&(I.destroy(),g=o(t,r||{}),S=g.header?document.querySelector(g.header):null,E=f(S),document.addEventListener("click",C,!1),S&&e.addEventListener("resize",w,!1),g.updateURL&&g.popstate&&e.addEventListener("popstate",L,!1))},I.init(p),I}}));
\ No newline at end of file
diff --git a/docs/dist/smooth-scroll.polyfills.js b/docs/dist/smooth-scroll.polyfills.js
index 265ad13..c7149c7 100755
--- a/docs/dist/smooth-scroll.polyfills.js
+++ b/docs/dist/smooth-scroll.polyfills.js
@@ -1,5 +1,5 @@
 /*!
- * smooth-scroll v14.0.0: Animate scrolling to anchor links
+ * smooth-scroll v14.0.1: Animate scrolling to anchor links
  * (c) 2018 Chris Ferdinandi
  * MIT License
  * http://github.com/cferdinandi/smooth-scroll
@@ -358,12 +358,17 @@ if (window.Element && !Element.prototype.closest) {
 	 */
 	var adjustFocus = function (anchor, endLocation, isNum) {
 
+		// Is scrolling to top of page, blur
+		if (anchor === 0) {
+			document.body.focus();
+		}
+
 		// Don't run if scrolling to a number on the page
 		if (isNum) return;
 
 		// Otherwise, bring anchor element into focus
 		anchor.focus();
-		if (document.activeElement.id !== anchor.id) {
+		if (document.activeElement !== anchor) {
 			anchor.setAttribute('tabindex', '-1');
 			anchor.focus();
 			anchor.style.outline = 'none';
@@ -374,10 +379,14 @@ if (window.Element && !Element.prototype.closest) {
 
 	/**
 	 * Update the URL
-	 * @param  {Node}   anchor  The anchor that was scrolled to
-	 * @param  {Object} options Settings for Smooth Scroll
+	 * @param  {Node}    anchor  The anchor that was scrolled to
+	 * @param  {Boolean} isNum   If true, anchor is a number
+	 * @param  {Object}  options Settings for Smooth Scroll
 	 */
-	var updateURL = function (anchor, options) {
+	var updateURL = function (anchor, isNum, options) {
+
+		// Bail if the anchor is a number
+		if (isNum) return;
 
 		// Verify that pushState is supported and the updateURL option is enabled
 		if (!history.pushState || !options.updateURL) return;
@@ -389,7 +398,7 @@ if (window.Element && !Element.prototype.closest) {
 				anchor: anchor.id
 			},
 			document.title,
-			anchor === 0 ? '#top' : '#' + anchor.id
+			anchor === document.documentElement ? '#top' : '#' + anchor.id
 		);
 
 	};
@@ -529,7 +538,7 @@ if (window.Element && !Element.prototype.closest) {
 			}
 
 			// Update the URL
-			updateURL(anchor, animateSettings);
+			updateURL(anchor, isNum, animateSettings);
 
 			// Emit a custom event
 			emitEvent('scrollStart', animateSettings, anchor, toggle);
@@ -561,21 +570,9 @@ if (window.Element && !Element.prototype.closest) {
 			// Get an escaped version of the hash
 			var hash = escapeCharacters(decode(toggle.hash));
 
-			// If the hash is empty, scroll to the top of the page
-			if (settings.topOnEmptyHash && ['#', '#top'].indexOf(hash) !== -1) {
-
-				// Prevent default link behavior
-				event.preventDefault();
-
-				// Scroll to the top of the page
-				smoothScroll.animateScroll(0, toggle);
-
-				return;
-
-			}
-
 			// Get the anchored element
-			anchor = document.querySelector(hash);
+			var anchor = settings.topOnEmptyHash && hash === '#' ? document.documentElement : document.querySelector(hash);
+			anchor = !anchor && hash === '#top' ? document.documentElement : anchor;
 
 			// If anchored element exists, scroll to it
 			if (!anchor) return;
diff --git a/docs/dist/smooth-scroll.polyfills.min.js b/docs/dist/smooth-scroll.polyfills.min.js
index 46ad04c..5a61d9d 100755
--- a/docs/dist/smooth-scroll.polyfills.min.js
+++ b/docs/dist/smooth-scroll.polyfills.min.js
@@ -1,2 +1,2 @@
-/*! smooth-scroll v14.0.0 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
-window.Element&&!Element.prototype.closest&&(Element.prototype.closest=function(e){var t,n=(this.document||this.ownerDocument).querySelectorAll(e),o=this;do{for(t=n.length;--t>=0&&n.item(t)!==o;);}while(t<0&&(o=o.parentElement));return o}),(function(){function e(e,t){t=t||{bubbles:!1,cancelable:!1,detail:void 0};var n=document.createEvent("CustomEvent");return n.initCustomEvent(e,t.bubbles,t.cancelable,t.detail),n}if("function"==typeof window.CustomEvent)return!1;e.prototype=window.Event.prototype,window.CustomEvent=e})(),(function(){for(var e=0,t=["ms","moz","webkit","o"],n=0;n<t.length&&!window.requestAnimationFrame;++n)window.requestAnimationFrame=window[t[n]+"RequestAnimationFrame"],window.cancelAnimationFrame=window[t[n]+"CancelAnimationFrame"]||window[t[n]+"CancelRequestAnimationFrame"];window.requestAnimationFrame||(window.requestAnimationFrame=function(t,n){var o=(new Date).getTime(),i=Math.max(0,16-(o-e)),r=window.setTimeout((function(){t(o+i)}),i);return e=o+i,r}),window.cancelAnimationFrame||(window.cancelAnimationFrame=function(e){clearTimeout(e)})})(),(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},n=function(){return"querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype},o=function(){for(var e={},t=0;t<arguments.length;t++)!(function(t){for(var n in t)t.hasOwnProperty(n)&&(e[n]=t[n])})(arguments[t]);return e},i=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)},r=function(t){return parseInt(e.getComputedStyle(t).height,10)},a=function(e){var t;try{t=decodeURIComponent(e)}catch(n){t=e}return t},u=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,i=-1,r="",a=n.charCodeAt(0);++i<o;){if(0===(t=n.charCodeAt(i)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===i&&t>=48&&t<=57||1===i&&t>=48&&t<=57&&45===a?r+="\\"+t.toString(16)+" ":r+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(i):"\\"+n.charAt(i)}var u;try{u=decodeURIComponent("#"+r)}catch(e){u="#"+r}return u},c=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(e,t,n){var o=0;if(e.offsetParent)do{o+=e.offsetTop,e=e.offsetParent}while(e);return o=Math.max(o-t-n,0)},m=function(e){return e?r(e)+e.offsetTop:0},d=function(t,n,o){o||(t.focus(),document.activeElement.id!==t.id&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},f=function(e,t){history.pushState&&t.updateURL&&history.pushState({smoothScroll:JSON.stringify(t),anchor:e.id},document.title,0===e?"#top":"#"+e.id)},h=function(t,n,o,i){if(n.emitEvents&&"function"==typeof e.CustomEvent){var r=new CustomEvent(t,{bubbles:!0,detail:{anchor:o,toggle:i}});document.dispatchEvent(r)}};return function(r,p){var g,v,w,y,E,b,S,A={};A.cancelScroll=function(e){cancelAnimationFrame(S),S=null,e||h("scrollCancel",g)},A.animateScroll=function(n,i,r){var a=o(g||t,r||{}),u="[object Number]"===Object.prototype.toString.call(n),p=u||!n.tagName?null:n;if(u||p){var v=e.pageYOffset;a.header&&!y&&(y=document.querySelector(a.header)),E||(E=m(y));var w,b,C,O=u?n:l(p,E,parseInt("function"==typeof a.offset?a.offset():a.offset,10)),I=O-v,q=s(),F=0,L=function(t,o){var r=e.pageYOffset;if(t==o||r==o||(v<o&&e.innerHeight+r)>=q)return A.cancelScroll(!0),d(n,o,u),h("scrollStop",a,n,i),w=null,S=null,!0},H=function(t){w||(w=t),F+=t-w,b=F/parseInt(a.speed,10),b=b>1?1:b,C=v+I*c(a,b),e.scrollTo(0,Math.floor(C)),L(C,O)||(S=e.requestAnimationFrame(H),w=t)};0===e.pageYOffset&&e.scrollTo(0,0),f(n,a),h("scrollStart",a,n,i),A.cancelScroll(!0),e.requestAnimationFrame(H)}};var C=function(t){if(!i()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&(w=t.target.closest(r))&&"a"===w.tagName.toLowerCase()&&!t.target.closest(g.ignore)&&w.hostname===e.location.hostname&&w.pathname===e.location.pathname&&/#/.test(w.href)){var n=u(a(w.hash));if(g.topOnEmptyHash&&-1!==["#","#top"].indexOf(n))return t.preventDefault(),void A.animateScroll(0,w);v=document.querySelector(n),v&&(t.preventDefault(),A.animateScroll(v,w))}},O=function(e){if(history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(g)&&history.state.anchor){var t=document.querySelector(u(a(history.state.anchor)));t&&A.animateScroll(t,null,{updateURL:!1})}},I=function(e){b||(b=setTimeout((function(){b=null,E=m(y)}),66))};return A.destroy=function(){g&&(document.removeEventListener("click",C,!1),e.removeEventListener("resize",I,!1),e.removeEventListener("popstate",O,!1),A.cancelScroll(),g=null,v=null,w=null,y=null,E=null,b=null,S=null)},A.init=function(i){n()&&(A.destroy(),g=o(t,i||{}),y=g.header?document.querySelector(g.header):null,E=m(y),document.addEventListener("click",C,!1),y&&e.addEventListener("resize",I,!1),g.updateURL&&g.popstate&&e.addEventListener("popstate",O,!1))},A.init(p),A}}));
\ No newline at end of file
+/*! smooth-scroll v14.0.1 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
+window.Element&&!Element.prototype.closest&&(Element.prototype.closest=function(e){var t,n=(this.document||this.ownerDocument).querySelectorAll(e),o=this;do{for(t=n.length;--t>=0&&n.item(t)!==o;);}while(t<0&&(o=o.parentElement));return o}),(function(){function e(e,t){t=t||{bubbles:!1,cancelable:!1,detail:void 0};var n=document.createEvent("CustomEvent");return n.initCustomEvent(e,t.bubbles,t.cancelable,t.detail),n}if("function"==typeof window.CustomEvent)return!1;e.prototype=window.Event.prototype,window.CustomEvent=e})(),(function(){for(var e=0,t=["ms","moz","webkit","o"],n=0;n<t.length&&!window.requestAnimationFrame;++n)window.requestAnimationFrame=window[t[n]+"RequestAnimationFrame"],window.cancelAnimationFrame=window[t[n]+"CancelAnimationFrame"]||window[t[n]+"CancelRequestAnimationFrame"];window.requestAnimationFrame||(window.requestAnimationFrame=function(t,n){var o=(new Date).getTime(),i=Math.max(0,16-(o-e)),a=window.setTimeout((function(){t(o+i)}),i);return e=o+i,a}),window.cancelAnimationFrame||(window.cancelAnimationFrame=function(e){clearTimeout(e)})})(),(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},n=function(){return"querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype},o=function(){for(var e={},t=0;t<arguments.length;t++)!(function(t){for(var n in t)t.hasOwnProperty(n)&&(e[n]=t[n])})(arguments[t]);return e},i=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)},a=function(t){return parseInt(e.getComputedStyle(t).height,10)},r=function(e){var t;try{t=decodeURIComponent(e)}catch(n){t=e}return t},u=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,i=-1,a="",r=n.charCodeAt(0);++i<o;){if(0===(t=n.charCodeAt(i)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===i&&t>=48&&t<=57||1===i&&t>=48&&t<=57&&45===r?a+="\\"+t.toString(16)+" ":a+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(i):"\\"+n.charAt(i)}var u;try{u=decodeURIComponent("#"+a)}catch(e){u="#"+a}return u},c=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(e,t,n){var o=0;if(e.offsetParent)do{o+=e.offsetTop,e=e.offsetParent}while(e);return o=Math.max(o-t-n,0)},m=function(e){return e?a(e)+e.offsetTop:0},d=function(t,n,o){0===t&&document.body.focus(),o||(t.focus(),document.activeElement!==t&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},f=function(e,t,n){t||history.pushState&&n.updateURL&&history.pushState({smoothScroll:JSON.stringify(n),anchor:e.id},document.title,e===document.documentElement?"#top":"#"+e.id)},h=function(t,n,o,i){if(n.emitEvents&&"function"==typeof e.CustomEvent){var a=new CustomEvent(t,{bubbles:!0,detail:{anchor:o,toggle:i}});document.dispatchEvent(a)}};return function(a,p){var g,v,w,y,E,b,S,A={};A.cancelScroll=function(e){cancelAnimationFrame(S),S=null,e||h("scrollCancel",g)},A.animateScroll=function(n,i,a){var r=o(g||t,a||{}),u="[object Number]"===Object.prototype.toString.call(n),p=u||!n.tagName?null:n;if(u||p){var v=e.pageYOffset;r.header&&!y&&(y=document.querySelector(r.header)),E||(E=m(y));var w,b,C,O=u?n:l(p,E,parseInt("function"==typeof r.offset?r.offset():r.offset,10)),I=O-v,q=s(),F=0,L=function(t,o){var a=e.pageYOffset;if(t==o||a==o||(v<o&&e.innerHeight+a)>=q)return A.cancelScroll(!0),d(n,o,u),h("scrollStop",r,n,i),w=null,S=null,!0},H=function(t){w||(w=t),F+=t-w,b=F/parseInt(r.speed,10),b=b>1?1:b,C=v+I*c(r,b),e.scrollTo(0,Math.floor(C)),L(C,O)||(S=e.requestAnimationFrame(H),w=t)};0===e.pageYOffset&&e.scrollTo(0,0),f(n,u,r),h("scrollStart",r,n,i),A.cancelScroll(!0),e.requestAnimationFrame(H)}};var C=function(t){if(!i()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&(w=t.target.closest(a))&&"a"===w.tagName.toLowerCase()&&!t.target.closest(g.ignore)&&w.hostname===e.location.hostname&&w.pathname===e.location.pathname&&/#/.test(w.href)){var n=u(r(w.hash)),o=g.topOnEmptyHash&&"#"===n?document.documentElement:document.querySelector(n);o=o||"#top"!==n?o:document.documentElement,o&&(t.preventDefault(),A.animateScroll(o,w))}},O=function(e){if(history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(g)&&history.state.anchor){var t=document.querySelector(u(r(history.state.anchor)));t&&A.animateScroll(t,null,{updateURL:!1})}},I=function(e){b||(b=setTimeout((function(){b=null,E=m(y)}),66))};return A.destroy=function(){g&&(document.removeEventListener("click",C,!1),e.removeEventListener("resize",I,!1),e.removeEventListener("popstate",O,!1),A.cancelScroll(),g=null,v=null,w=null,y=null,E=null,b=null,S=null)},A.init=function(i){n()&&(A.destroy(),g=o(t,i||{}),y=g.header?document.querySelector(g.header):null,E=m(y),document.addEventListener("click",C,!1),y&&e.addEventListener("resize",I,!1),g.updateURL&&g.popstate&&e.addEventListener("popstate",O,!1))},A.init(p),A}}));
\ No newline at end of file
diff --git a/docs/index.html b/docs/index.html
index be9ff69..8d01595 100755
--- a/docs/index.html
+++ b/docs/index.html
@@ -91,7 +91,7 @@ <h1>Smooth Scroll</h1>
 		</main>
 
 		<!-- Javascript -->
-		<script src="http://github.com/dist/js/smooth-scroll.polyfills.min.js"></script>
+		<script src="http://github.com/dist/smooth-scroll.polyfills.min.js"></script>
 		<script>
 
 			// Instantiate Scrolls
diff --git a/package.json b/package.json
index 34054ff..b4348a8 100755
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
 	"name": "smooth-scroll",
-	"version": "14.0.0",
+	"version": "14.0.1",
 	"description": "Animate scrolling to anchor links",
 	"main": "./dist/smooth-scroll.min.js",
 	"author": {
diff --git a/src/docs/_templates/_footer.html b/src/docs/_templates/_footer.html
index 7d5455d..4fdbf41 100755
--- a/src/docs/_templates/_footer.html
+++ b/src/docs/_templates/_footer.html
@@ -3,7 +3,7 @@
 		</main>
 
 		<!-- Javascript -->
-		<script src="http://github.com/dist/js/smooth-scroll.polyfills.min.js"></script>
+		<script src="http://github.com/dist/smooth-scroll.polyfills.min.js"></script>
 		<script>
 
 			// Instantiate Scrolls
diff --git a/src/js/smooth-scroll.js b/src/js/smooth-scroll.js
index 9090cbd..cc5457e 100755
--- a/src/js/smooth-scroll.js
+++ b/src/js/smooth-scroll.js
@@ -281,12 +281,17 @@
 	 */
 	var adjustFocus = function (anchor, endLocation, isNum) {
 
+		// Is scrolling to top of page, blur
+		if (anchor === 0) {
+			document.body.focus();
+		}
+
 		// Don't run if scrolling to a number on the page
 		if (isNum) return;
 
 		// Otherwise, bring anchor element into focus
 		anchor.focus();
-		if (document.activeElement.id !== anchor.id) {
+		if (document.activeElement !== anchor) {
 			anchor.setAttribute('tabindex', '-1');
 			anchor.focus();
 			anchor.style.outline = 'none';
@@ -297,10 +302,14 @@
 
 	/**
 	 * Update the URL
-	 * @param  {Node}   anchor  The anchor that was scrolled to
-	 * @param  {Object} options Settings for Smooth Scroll
+	 * @param  {Node}    anchor  The anchor that was scrolled to
+	 * @param  {Boolean} isNum   If true, anchor is a number
+	 * @param  {Object}  options Settings for Smooth Scroll
 	 */
-	var updateURL = function (anchor, options) {
+	var updateURL = function (anchor, isNum, options) {
+
+		// Bail if the anchor is a number
+		if (isNum) return;
 
 		// Verify that pushState is supported and the updateURL option is enabled
 		if (!history.pushState || !options.updateURL) return;
@@ -312,7 +321,7 @@
 				anchor: anchor.id
 			},
 			document.title,
-			anchor === 0 ? '#top' : '#' + anchor.id
+			anchor === document.documentElement ? '#top' : '#' + anchor.id
 		);
 
 	};
@@ -452,7 +461,7 @@
 			}
 
 			// Update the URL
-			updateURL(anchor, animateSettings);
+			updateURL(anchor, isNum, animateSettings);
 
 			// Emit a custom event
 			emitEvent('scrollStart', animateSettings, anchor, toggle);
@@ -484,21 +493,9 @@
 			// Get an escaped version of the hash
 			var hash = escapeCharacters(decode(toggle.hash));
 
-			// If the hash is empty, scroll to the top of the page
-			if (settings.topOnEmptyHash && ['#', '#top'].indexOf(hash) !== -1) {
-
-				// Prevent default link behavior
-				event.preventDefault();
-
-				// Scroll to the top of the page
-				smoothScroll.animateScroll(0, toggle);
-
-				return;
-
-			}
-
 			// Get the anchored element
-			anchor = document.querySelector(hash);
+			var anchor = settings.topOnEmptyHash && hash === '#' ? document.documentElement : document.querySelector(hash);
+			anchor = !anchor && hash === '#top' ? document.documentElement : anchor;
 
 			// If anchored element exists, scroll to it
 			if (!anchor) return;

From 1fbe9048c8f3b959d74d9670d3537d7a244b70d1 Mon Sep 17 00:00:00 2001
From: cferdinandi <chris@gomakethings.com>
Date: Fri, 18 May 2018 10:36:26 -0400
Subject: [PATCH 10/51] Updated support guidelines

---
 .github/{support.md => contributing.md} | 0
 1 file changed, 0 insertions(+), 0 deletions(-)
 rename .github/{support.md => contributing.md} (100%)

diff --git a/.github/support.md b/.github/contributing.md
similarity index 100%
rename from .github/support.md
rename to .github/contributing.md

From 69e93a52bc22c0dbef5ad904917fbe1e66f336bc Mon Sep 17 00:00:00 2001
From: cferdinandi <chris@gomakethings.com>
Date: Fri, 18 May 2018 11:28:40 -0400
Subject: [PATCH 11/51] Pass anchor and toggle into offset() Addresses... -
 https://github.com/cferdinandi/smooth-scroll/issues/410 -
 https://github.com/cferdinandi/smooth-scroll/issues/386 -
 https://github.com/cferdinandi/smooth-scroll/issues/367

---
 README.md                                | 15 ++++++++++++++-
 dist/smooth-scroll.js                    |  4 ++--
 dist/smooth-scroll.min.js                |  4 ++--
 dist/smooth-scroll.polyfills.js          |  4 ++--
 dist/smooth-scroll.polyfills.min.js      |  4 ++--
 docs/dist/smooth-scroll.js               |  4 ++--
 docs/dist/smooth-scroll.min.js           |  4 ++--
 docs/dist/smooth-scroll.polyfills.js     |  4 ++--
 docs/dist/smooth-scroll.polyfills.min.js |  4 ++--
 package.json                             |  2 +-
 src/js/smooth-scroll.js                  |  2 +-
 11 files changed, 32 insertions(+), 19 deletions(-)

diff --git a/README.md b/README.md
index d5b7b76..783e19a 100755
--- a/README.md
+++ b/README.md
@@ -127,7 +127,19 @@ var scroll = new SmoothScroll('a[href*="#"]', {
 
 	// Speed & Easing
 	speed: 500, // Integer. How fast to complete the scroll in milliseconds
-	offset: 0, // Integer or Function returning an integer. How far to offset the scrolling anchor location in pixels
+	offset: function (anchor, toggle) {
+
+		// Integer or Function returning an integer. How far to offset the scrolling anchor location in pixels
+		// This example is a function, but you could do something as simple as `offset: 25`
+
+		// An example returning different values based on whether the clicked link was in the header nav or not
+		if (toggle.classList.closest('.my-header-nav')) {
+			return 25;
+		} else {
+			return 50;
+		}
+
+	},
 	easing: 'easeInOutCubic', // Easing pattern to use
 	customEasing: function (time) {
 
@@ -317,6 +329,7 @@ If you have multiple fixed headers, pass in the last one in the markup.
 - Custom events let you more easily hook into Smooth Scroll from other scripts.
 - The feature test is scoped to a function, allowing for server-side implementations.
 - The loss of styling with IDs experienced in earlier versions has been eliminated.
+- The `anchor` and `toggle` elements are now passed into the `offset()` function, allowing for more customization [v14.1.0 and up].
 
 ### Breaking Changes
 
diff --git a/dist/smooth-scroll.js b/dist/smooth-scroll.js
index 5f3e3de..cc663d5 100755
--- a/dist/smooth-scroll.js
+++ b/dist/smooth-scroll.js
@@ -1,5 +1,5 @@
 /*!
- * smooth-scroll v14.0.1: Animate scrolling to anchor links
+ * smooth-scroll v14.1.0: Animate scrolling to anchor links
  * (c) 2018 Chris Ferdinandi
  * MIT License
  * http://github.com/cferdinandi/smooth-scroll
@@ -405,7 +405,7 @@
 				// Get the height of a fixed header if one exists and not already set
 				headerHeight = getHeaderHeight(fixedHeader);
 			}
-			var endLocation = isNum ? anchor : getEndLocation(anchorElem, headerHeight, parseInt((typeof animateSettings.offset === 'function' ? animateSettings.offset() : animateSettings.offset), 10)); // Location to scroll to
+			var endLocation = isNum ? anchor : getEndLocation(anchorElem, headerHeight, parseInt((typeof animateSettings.offset === 'function' ? animateSettings.offset(anchor, toggle) : animateSettings.offset), 10)); // Location to scroll to
 			var distance = endLocation - startLocation; // distance to travel
 			var documentHeight = getDocumentHeight();
 			var timeLapsed = 0;
diff --git a/dist/smooth-scroll.min.js b/dist/smooth-scroll.min.js
index 75085f2..95484c4 100755
--- a/dist/smooth-scroll.min.js
+++ b/dist/smooth-scroll.min.js
@@ -1,2 +1,2 @@
-/*! smooth-scroll v14.0.1 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
-!(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},n=function(){return"querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype},o=function(){for(var e={},t=0;t<arguments.length;t++)!(function(t){for(var n in t)t.hasOwnProperty(n)&&(e[n]=t[n])})(arguments[t]);return e},r=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)},a=function(t){return parseInt(e.getComputedStyle(t).height,10)},i=function(e){var t;try{t=decodeURIComponent(e)}catch(n){t=e}return t},u=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,r=-1,a="",i=n.charCodeAt(0);++r<o;){if(0===(t=n.charCodeAt(r)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===r&&t>=48&&t<=57||1===r&&t>=48&&t<=57&&45===i?a+="\\"+t.toString(16)+" ":a+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(r):"\\"+n.charAt(r)}var u;try{u=decodeURIComponent("#"+a)}catch(e){u="#"+a}return u},c=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(e,t,n){var o=0;if(e.offsetParent)do{o+=e.offsetTop,e=e.offsetParent}while(e);return o=Math.max(o-t-n,0)},f=function(e){return e?a(e)+e.offsetTop:0},d=function(t,n,o){0===t&&document.body.focus(),o||(t.focus(),document.activeElement!==t&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},m=function(e,t,n){t||history.pushState&&n.updateURL&&history.pushState({smoothScroll:JSON.stringify(n),anchor:e.id},document.title,e===document.documentElement?"#top":"#"+e.id)},h=function(t,n,o,r){if(n.emitEvents&&"function"==typeof e.CustomEvent){var a=new CustomEvent(t,{bubbles:!0,detail:{anchor:o,toggle:r}});document.dispatchEvent(a)}};return function(a,p){var g,v,y,S,E,b,O,I={};I.cancelScroll=function(e){cancelAnimationFrame(O),O=null,e||h("scrollCancel",g)},I.animateScroll=function(n,r,a){var i=o(g||t,a||{}),u="[object Number]"===Object.prototype.toString.call(n),p=u||!n.tagName?null:n;if(u||p){var v=e.pageYOffset;i.header&&!S&&(S=document.querySelector(i.header)),E||(E=f(S));var y,b,C,L=u?n:l(p,E,parseInt("function"==typeof i.offset?i.offset():i.offset,10)),w=L-v,A=s(),H=0,Q=function(t,o){var a=e.pageYOffset;if(t==o||a==o||(v<o&&e.innerHeight+a)>=A)return I.cancelScroll(!0),d(n,o,u),h("scrollStop",i,n,r),y=null,O=null,!0},q=function(t){y||(y=t),H+=t-y,b=H/parseInt(i.speed,10),b=b>1?1:b,C=v+w*c(i,b),e.scrollTo(0,Math.floor(C)),Q(C,L)||(O=e.requestAnimationFrame(q),y=t)};0===e.pageYOffset&&e.scrollTo(0,0),m(n,u,i),h("scrollStart",i,n,r),I.cancelScroll(!0),e.requestAnimationFrame(q)}};var C=function(t){if(!r()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&(y=t.target.closest(a))&&"a"===y.tagName.toLowerCase()&&!t.target.closest(g.ignore)&&y.hostname===e.location.hostname&&y.pathname===e.location.pathname&&/#/.test(y.href)){var n=u(i(y.hash)),o=g.topOnEmptyHash&&"#"===n?document.documentElement:document.querySelector(n);o=o||"#top"!==n?o:document.documentElement,o&&(t.preventDefault(),I.animateScroll(o,y))}},L=function(e){if(history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(g)&&history.state.anchor){var t=document.querySelector(u(i(history.state.anchor)));t&&I.animateScroll(t,null,{updateURL:!1})}},w=function(e){b||(b=setTimeout((function(){b=null,E=f(S)}),66))};return I.destroy=function(){g&&(document.removeEventListener("click",C,!1),e.removeEventListener("resize",w,!1),e.removeEventListener("popstate",L,!1),I.cancelScroll(),g=null,v=null,y=null,S=null,E=null,b=null,O=null)},I.init=function(r){n()&&(I.destroy(),g=o(t,r||{}),S=g.header?document.querySelector(g.header):null,E=f(S),document.addEventListener("click",C,!1),S&&e.addEventListener("resize",w,!1),g.updateURL&&g.popstate&&e.addEventListener("popstate",L,!1))},I.init(p),I}}));
\ No newline at end of file
+/*! smooth-scroll v14.1.0 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
+!(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},n=function(){return"querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype},o=function(){for(var e={},t=0;t<arguments.length;t++)!(function(t){for(var n in t)t.hasOwnProperty(n)&&(e[n]=t[n])})(arguments[t]);return e},r=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)},a=function(t){return parseInt(e.getComputedStyle(t).height,10)},i=function(e){var t;try{t=decodeURIComponent(e)}catch(n){t=e}return t},u=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,r=-1,a="",i=n.charCodeAt(0);++r<o;){if(0===(t=n.charCodeAt(r)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===r&&t>=48&&t<=57||1===r&&t>=48&&t<=57&&45===i?a+="\\"+t.toString(16)+" ":a+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(r):"\\"+n.charAt(r)}var u;try{u=decodeURIComponent("#"+a)}catch(e){u="#"+a}return u},c=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(e,t,n){var o=0;if(e.offsetParent)do{o+=e.offsetTop,e=e.offsetParent}while(e);return o=Math.max(o-t-n,0)},f=function(e){return e?a(e)+e.offsetTop:0},d=function(t,n,o){0===t&&document.body.focus(),o||(t.focus(),document.activeElement!==t&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},m=function(e,t,n){t||history.pushState&&n.updateURL&&history.pushState({smoothScroll:JSON.stringify(n),anchor:e.id},document.title,e===document.documentElement?"#top":"#"+e.id)},h=function(t,n,o,r){if(n.emitEvents&&"function"==typeof e.CustomEvent){var a=new CustomEvent(t,{bubbles:!0,detail:{anchor:o,toggle:r}});document.dispatchEvent(a)}};return function(a,p){var g,v,y,S,E,b,O,I={};I.cancelScroll=function(e){cancelAnimationFrame(O),O=null,e||h("scrollCancel",g)},I.animateScroll=function(n,r,a){var i=o(g||t,a||{}),u="[object Number]"===Object.prototype.toString.call(n),p=u||!n.tagName?null:n;if(u||p){var v=e.pageYOffset;i.header&&!S&&(S=document.querySelector(i.header)),E||(E=f(S));var y,b,C,L=u?n:l(p,E,parseInt("function"==typeof i.offset?i.offset(n,r):i.offset,10)),w=L-v,A=s(),H=0,Q=function(t,o){var a=e.pageYOffset;if(t==o||a==o||(v<o&&e.innerHeight+a)>=A)return I.cancelScroll(!0),d(n,o,u),h("scrollStop",i,n,r),y=null,O=null,!0},q=function(t){y||(y=t),H+=t-y,b=H/parseInt(i.speed,10),b=b>1?1:b,C=v+w*c(i,b),e.scrollTo(0,Math.floor(C)),Q(C,L)||(O=e.requestAnimationFrame(q),y=t)};0===e.pageYOffset&&e.scrollTo(0,0),m(n,u,i),h("scrollStart",i,n,r),I.cancelScroll(!0),e.requestAnimationFrame(q)}};var C=function(t){if(!r()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&(y=t.target.closest(a))&&"a"===y.tagName.toLowerCase()&&!t.target.closest(g.ignore)&&y.hostname===e.location.hostname&&y.pathname===e.location.pathname&&/#/.test(y.href)){var n=u(i(y.hash)),o=g.topOnEmptyHash&&"#"===n?document.documentElement:document.querySelector(n);o=o||"#top"!==n?o:document.documentElement,o&&(t.preventDefault(),I.animateScroll(o,y))}},L=function(e){if(history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(g)&&history.state.anchor){var t=document.querySelector(u(i(history.state.anchor)));t&&I.animateScroll(t,null,{updateURL:!1})}},w=function(e){b||(b=setTimeout((function(){b=null,E=f(S)}),66))};return I.destroy=function(){g&&(document.removeEventListener("click",C,!1),e.removeEventListener("resize",w,!1),e.removeEventListener("popstate",L,!1),I.cancelScroll(),g=null,v=null,y=null,S=null,E=null,b=null,O=null)},I.init=function(r){n()&&(I.destroy(),g=o(t,r||{}),S=g.header?document.querySelector(g.header):null,E=f(S),document.addEventListener("click",C,!1),S&&e.addEventListener("resize",w,!1),g.updateURL&&g.popstate&&e.addEventListener("popstate",L,!1))},I.init(p),I}}));
\ No newline at end of file
diff --git a/dist/smooth-scroll.polyfills.js b/dist/smooth-scroll.polyfills.js
index c7149c7..dbc365e 100755
--- a/dist/smooth-scroll.polyfills.js
+++ b/dist/smooth-scroll.polyfills.js
@@ -1,5 +1,5 @@
 /*!
- * smooth-scroll v14.0.1: Animate scrolling to anchor links
+ * smooth-scroll v14.1.0: Animate scrolling to anchor links
  * (c) 2018 Chris Ferdinandi
  * MIT License
  * http://github.com/cferdinandi/smooth-scroll
@@ -475,7 +475,7 @@ if (window.Element && !Element.prototype.closest) {
 				// Get the height of a fixed header if one exists and not already set
 				headerHeight = getHeaderHeight(fixedHeader);
 			}
-			var endLocation = isNum ? anchor : getEndLocation(anchorElem, headerHeight, parseInt((typeof animateSettings.offset === 'function' ? animateSettings.offset() : animateSettings.offset), 10)); // Location to scroll to
+			var endLocation = isNum ? anchor : getEndLocation(anchorElem, headerHeight, parseInt((typeof animateSettings.offset === 'function' ? animateSettings.offset(anchor, toggle) : animateSettings.offset), 10)); // Location to scroll to
 			var distance = endLocation - startLocation; // distance to travel
 			var documentHeight = getDocumentHeight();
 			var timeLapsed = 0;
diff --git a/dist/smooth-scroll.polyfills.min.js b/dist/smooth-scroll.polyfills.min.js
index 5a61d9d..699ad81 100755
--- a/dist/smooth-scroll.polyfills.min.js
+++ b/dist/smooth-scroll.polyfills.min.js
@@ -1,2 +1,2 @@
-/*! smooth-scroll v14.0.1 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
-window.Element&&!Element.prototype.closest&&(Element.prototype.closest=function(e){var t,n=(this.document||this.ownerDocument).querySelectorAll(e),o=this;do{for(t=n.length;--t>=0&&n.item(t)!==o;);}while(t<0&&(o=o.parentElement));return o}),(function(){function e(e,t){t=t||{bubbles:!1,cancelable:!1,detail:void 0};var n=document.createEvent("CustomEvent");return n.initCustomEvent(e,t.bubbles,t.cancelable,t.detail),n}if("function"==typeof window.CustomEvent)return!1;e.prototype=window.Event.prototype,window.CustomEvent=e})(),(function(){for(var e=0,t=["ms","moz","webkit","o"],n=0;n<t.length&&!window.requestAnimationFrame;++n)window.requestAnimationFrame=window[t[n]+"RequestAnimationFrame"],window.cancelAnimationFrame=window[t[n]+"CancelAnimationFrame"]||window[t[n]+"CancelRequestAnimationFrame"];window.requestAnimationFrame||(window.requestAnimationFrame=function(t,n){var o=(new Date).getTime(),i=Math.max(0,16-(o-e)),a=window.setTimeout((function(){t(o+i)}),i);return e=o+i,a}),window.cancelAnimationFrame||(window.cancelAnimationFrame=function(e){clearTimeout(e)})})(),(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},n=function(){return"querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype},o=function(){for(var e={},t=0;t<arguments.length;t++)!(function(t){for(var n in t)t.hasOwnProperty(n)&&(e[n]=t[n])})(arguments[t]);return e},i=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)},a=function(t){return parseInt(e.getComputedStyle(t).height,10)},r=function(e){var t;try{t=decodeURIComponent(e)}catch(n){t=e}return t},u=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,i=-1,a="",r=n.charCodeAt(0);++i<o;){if(0===(t=n.charCodeAt(i)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===i&&t>=48&&t<=57||1===i&&t>=48&&t<=57&&45===r?a+="\\"+t.toString(16)+" ":a+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(i):"\\"+n.charAt(i)}var u;try{u=decodeURIComponent("#"+a)}catch(e){u="#"+a}return u},c=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(e,t,n){var o=0;if(e.offsetParent)do{o+=e.offsetTop,e=e.offsetParent}while(e);return o=Math.max(o-t-n,0)},m=function(e){return e?a(e)+e.offsetTop:0},d=function(t,n,o){0===t&&document.body.focus(),o||(t.focus(),document.activeElement!==t&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},f=function(e,t,n){t||history.pushState&&n.updateURL&&history.pushState({smoothScroll:JSON.stringify(n),anchor:e.id},document.title,e===document.documentElement?"#top":"#"+e.id)},h=function(t,n,o,i){if(n.emitEvents&&"function"==typeof e.CustomEvent){var a=new CustomEvent(t,{bubbles:!0,detail:{anchor:o,toggle:i}});document.dispatchEvent(a)}};return function(a,p){var g,v,w,y,E,b,S,A={};A.cancelScroll=function(e){cancelAnimationFrame(S),S=null,e||h("scrollCancel",g)},A.animateScroll=function(n,i,a){var r=o(g||t,a||{}),u="[object Number]"===Object.prototype.toString.call(n),p=u||!n.tagName?null:n;if(u||p){var v=e.pageYOffset;r.header&&!y&&(y=document.querySelector(r.header)),E||(E=m(y));var w,b,C,O=u?n:l(p,E,parseInt("function"==typeof r.offset?r.offset():r.offset,10)),I=O-v,q=s(),F=0,L=function(t,o){var a=e.pageYOffset;if(t==o||a==o||(v<o&&e.innerHeight+a)>=q)return A.cancelScroll(!0),d(n,o,u),h("scrollStop",r,n,i),w=null,S=null,!0},H=function(t){w||(w=t),F+=t-w,b=F/parseInt(r.speed,10),b=b>1?1:b,C=v+I*c(r,b),e.scrollTo(0,Math.floor(C)),L(C,O)||(S=e.requestAnimationFrame(H),w=t)};0===e.pageYOffset&&e.scrollTo(0,0),f(n,u,r),h("scrollStart",r,n,i),A.cancelScroll(!0),e.requestAnimationFrame(H)}};var C=function(t){if(!i()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&(w=t.target.closest(a))&&"a"===w.tagName.toLowerCase()&&!t.target.closest(g.ignore)&&w.hostname===e.location.hostname&&w.pathname===e.location.pathname&&/#/.test(w.href)){var n=u(r(w.hash)),o=g.topOnEmptyHash&&"#"===n?document.documentElement:document.querySelector(n);o=o||"#top"!==n?o:document.documentElement,o&&(t.preventDefault(),A.animateScroll(o,w))}},O=function(e){if(history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(g)&&history.state.anchor){var t=document.querySelector(u(r(history.state.anchor)));t&&A.animateScroll(t,null,{updateURL:!1})}},I=function(e){b||(b=setTimeout((function(){b=null,E=m(y)}),66))};return A.destroy=function(){g&&(document.removeEventListener("click",C,!1),e.removeEventListener("resize",I,!1),e.removeEventListener("popstate",O,!1),A.cancelScroll(),g=null,v=null,w=null,y=null,E=null,b=null,S=null)},A.init=function(i){n()&&(A.destroy(),g=o(t,i||{}),y=g.header?document.querySelector(g.header):null,E=m(y),document.addEventListener("click",C,!1),y&&e.addEventListener("resize",I,!1),g.updateURL&&g.popstate&&e.addEventListener("popstate",O,!1))},A.init(p),A}}));
\ No newline at end of file
+/*! smooth-scroll v14.1.0 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
+window.Element&&!Element.prototype.closest&&(Element.prototype.closest=function(e){var t,n=(this.document||this.ownerDocument).querySelectorAll(e),o=this;do{for(t=n.length;--t>=0&&n.item(t)!==o;);}while(t<0&&(o=o.parentElement));return o}),(function(){function e(e,t){t=t||{bubbles:!1,cancelable:!1,detail:void 0};var n=document.createEvent("CustomEvent");return n.initCustomEvent(e,t.bubbles,t.cancelable,t.detail),n}if("function"==typeof window.CustomEvent)return!1;e.prototype=window.Event.prototype,window.CustomEvent=e})(),(function(){for(var e=0,t=["ms","moz","webkit","o"],n=0;n<t.length&&!window.requestAnimationFrame;++n)window.requestAnimationFrame=window[t[n]+"RequestAnimationFrame"],window.cancelAnimationFrame=window[t[n]+"CancelAnimationFrame"]||window[t[n]+"CancelRequestAnimationFrame"];window.requestAnimationFrame||(window.requestAnimationFrame=function(t,n){var o=(new Date).getTime(),i=Math.max(0,16-(o-e)),a=window.setTimeout((function(){t(o+i)}),i);return e=o+i,a}),window.cancelAnimationFrame||(window.cancelAnimationFrame=function(e){clearTimeout(e)})})(),(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},n=function(){return"querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype},o=function(){for(var e={},t=0;t<arguments.length;t++)!(function(t){for(var n in t)t.hasOwnProperty(n)&&(e[n]=t[n])})(arguments[t]);return e},i=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)},a=function(t){return parseInt(e.getComputedStyle(t).height,10)},r=function(e){var t;try{t=decodeURIComponent(e)}catch(n){t=e}return t},u=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,i=-1,a="",r=n.charCodeAt(0);++i<o;){if(0===(t=n.charCodeAt(i)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===i&&t>=48&&t<=57||1===i&&t>=48&&t<=57&&45===r?a+="\\"+t.toString(16)+" ":a+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(i):"\\"+n.charAt(i)}var u;try{u=decodeURIComponent("#"+a)}catch(e){u="#"+a}return u},c=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(e,t,n){var o=0;if(e.offsetParent)do{o+=e.offsetTop,e=e.offsetParent}while(e);return o=Math.max(o-t-n,0)},m=function(e){return e?a(e)+e.offsetTop:0},d=function(t,n,o){0===t&&document.body.focus(),o||(t.focus(),document.activeElement!==t&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},f=function(e,t,n){t||history.pushState&&n.updateURL&&history.pushState({smoothScroll:JSON.stringify(n),anchor:e.id},document.title,e===document.documentElement?"#top":"#"+e.id)},h=function(t,n,o,i){if(n.emitEvents&&"function"==typeof e.CustomEvent){var a=new CustomEvent(t,{bubbles:!0,detail:{anchor:o,toggle:i}});document.dispatchEvent(a)}};return function(a,p){var g,v,w,y,E,b,S,A={};A.cancelScroll=function(e){cancelAnimationFrame(S),S=null,e||h("scrollCancel",g)},A.animateScroll=function(n,i,a){var r=o(g||t,a||{}),u="[object Number]"===Object.prototype.toString.call(n),p=u||!n.tagName?null:n;if(u||p){var v=e.pageYOffset;r.header&&!y&&(y=document.querySelector(r.header)),E||(E=m(y));var w,b,C,O=u?n:l(p,E,parseInt("function"==typeof r.offset?r.offset(n,i):r.offset,10)),I=O-v,q=s(),F=0,L=function(t,o){var a=e.pageYOffset;if(t==o||a==o||(v<o&&e.innerHeight+a)>=q)return A.cancelScroll(!0),d(n,o,u),h("scrollStop",r,n,i),w=null,S=null,!0},H=function(t){w||(w=t),F+=t-w,b=F/parseInt(r.speed,10),b=b>1?1:b,C=v+I*c(r,b),e.scrollTo(0,Math.floor(C)),L(C,O)||(S=e.requestAnimationFrame(H),w=t)};0===e.pageYOffset&&e.scrollTo(0,0),f(n,u,r),h("scrollStart",r,n,i),A.cancelScroll(!0),e.requestAnimationFrame(H)}};var C=function(t){if(!i()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&(w=t.target.closest(a))&&"a"===w.tagName.toLowerCase()&&!t.target.closest(g.ignore)&&w.hostname===e.location.hostname&&w.pathname===e.location.pathname&&/#/.test(w.href)){var n=u(r(w.hash)),o=g.topOnEmptyHash&&"#"===n?document.documentElement:document.querySelector(n);o=o||"#top"!==n?o:document.documentElement,o&&(t.preventDefault(),A.animateScroll(o,w))}},O=function(e){if(history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(g)&&history.state.anchor){var t=document.querySelector(u(r(history.state.anchor)));t&&A.animateScroll(t,null,{updateURL:!1})}},I=function(e){b||(b=setTimeout((function(){b=null,E=m(y)}),66))};return A.destroy=function(){g&&(document.removeEventListener("click",C,!1),e.removeEventListener("resize",I,!1),e.removeEventListener("popstate",O,!1),A.cancelScroll(),g=null,v=null,w=null,y=null,E=null,b=null,S=null)},A.init=function(i){n()&&(A.destroy(),g=o(t,i||{}),y=g.header?document.querySelector(g.header):null,E=m(y),document.addEventListener("click",C,!1),y&&e.addEventListener("resize",I,!1),g.updateURL&&g.popstate&&e.addEventListener("popstate",O,!1))},A.init(p),A}}));
\ No newline at end of file
diff --git a/docs/dist/smooth-scroll.js b/docs/dist/smooth-scroll.js
index 5f3e3de..cc663d5 100755
--- a/docs/dist/smooth-scroll.js
+++ b/docs/dist/smooth-scroll.js
@@ -1,5 +1,5 @@
 /*!
- * smooth-scroll v14.0.1: Animate scrolling to anchor links
+ * smooth-scroll v14.1.0: Animate scrolling to anchor links
  * (c) 2018 Chris Ferdinandi
  * MIT License
  * http://github.com/cferdinandi/smooth-scroll
@@ -405,7 +405,7 @@
 				// Get the height of a fixed header if one exists and not already set
 				headerHeight = getHeaderHeight(fixedHeader);
 			}
-			var endLocation = isNum ? anchor : getEndLocation(anchorElem, headerHeight, parseInt((typeof animateSettings.offset === 'function' ? animateSettings.offset() : animateSettings.offset), 10)); // Location to scroll to
+			var endLocation = isNum ? anchor : getEndLocation(anchorElem, headerHeight, parseInt((typeof animateSettings.offset === 'function' ? animateSettings.offset(anchor, toggle) : animateSettings.offset), 10)); // Location to scroll to
 			var distance = endLocation - startLocation; // distance to travel
 			var documentHeight = getDocumentHeight();
 			var timeLapsed = 0;
diff --git a/docs/dist/smooth-scroll.min.js b/docs/dist/smooth-scroll.min.js
index 75085f2..95484c4 100755
--- a/docs/dist/smooth-scroll.min.js
+++ b/docs/dist/smooth-scroll.min.js
@@ -1,2 +1,2 @@
-/*! smooth-scroll v14.0.1 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
-!(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},n=function(){return"querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype},o=function(){for(var e={},t=0;t<arguments.length;t++)!(function(t){for(var n in t)t.hasOwnProperty(n)&&(e[n]=t[n])})(arguments[t]);return e},r=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)},a=function(t){return parseInt(e.getComputedStyle(t).height,10)},i=function(e){var t;try{t=decodeURIComponent(e)}catch(n){t=e}return t},u=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,r=-1,a="",i=n.charCodeAt(0);++r<o;){if(0===(t=n.charCodeAt(r)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===r&&t>=48&&t<=57||1===r&&t>=48&&t<=57&&45===i?a+="\\"+t.toString(16)+" ":a+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(r):"\\"+n.charAt(r)}var u;try{u=decodeURIComponent("#"+a)}catch(e){u="#"+a}return u},c=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(e,t,n){var o=0;if(e.offsetParent)do{o+=e.offsetTop,e=e.offsetParent}while(e);return o=Math.max(o-t-n,0)},f=function(e){return e?a(e)+e.offsetTop:0},d=function(t,n,o){0===t&&document.body.focus(),o||(t.focus(),document.activeElement!==t&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},m=function(e,t,n){t||history.pushState&&n.updateURL&&history.pushState({smoothScroll:JSON.stringify(n),anchor:e.id},document.title,e===document.documentElement?"#top":"#"+e.id)},h=function(t,n,o,r){if(n.emitEvents&&"function"==typeof e.CustomEvent){var a=new CustomEvent(t,{bubbles:!0,detail:{anchor:o,toggle:r}});document.dispatchEvent(a)}};return function(a,p){var g,v,y,S,E,b,O,I={};I.cancelScroll=function(e){cancelAnimationFrame(O),O=null,e||h("scrollCancel",g)},I.animateScroll=function(n,r,a){var i=o(g||t,a||{}),u="[object Number]"===Object.prototype.toString.call(n),p=u||!n.tagName?null:n;if(u||p){var v=e.pageYOffset;i.header&&!S&&(S=document.querySelector(i.header)),E||(E=f(S));var y,b,C,L=u?n:l(p,E,parseInt("function"==typeof i.offset?i.offset():i.offset,10)),w=L-v,A=s(),H=0,Q=function(t,o){var a=e.pageYOffset;if(t==o||a==o||(v<o&&e.innerHeight+a)>=A)return I.cancelScroll(!0),d(n,o,u),h("scrollStop",i,n,r),y=null,O=null,!0},q=function(t){y||(y=t),H+=t-y,b=H/parseInt(i.speed,10),b=b>1?1:b,C=v+w*c(i,b),e.scrollTo(0,Math.floor(C)),Q(C,L)||(O=e.requestAnimationFrame(q),y=t)};0===e.pageYOffset&&e.scrollTo(0,0),m(n,u,i),h("scrollStart",i,n,r),I.cancelScroll(!0),e.requestAnimationFrame(q)}};var C=function(t){if(!r()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&(y=t.target.closest(a))&&"a"===y.tagName.toLowerCase()&&!t.target.closest(g.ignore)&&y.hostname===e.location.hostname&&y.pathname===e.location.pathname&&/#/.test(y.href)){var n=u(i(y.hash)),o=g.topOnEmptyHash&&"#"===n?document.documentElement:document.querySelector(n);o=o||"#top"!==n?o:document.documentElement,o&&(t.preventDefault(),I.animateScroll(o,y))}},L=function(e){if(history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(g)&&history.state.anchor){var t=document.querySelector(u(i(history.state.anchor)));t&&I.animateScroll(t,null,{updateURL:!1})}},w=function(e){b||(b=setTimeout((function(){b=null,E=f(S)}),66))};return I.destroy=function(){g&&(document.removeEventListener("click",C,!1),e.removeEventListener("resize",w,!1),e.removeEventListener("popstate",L,!1),I.cancelScroll(),g=null,v=null,y=null,S=null,E=null,b=null,O=null)},I.init=function(r){n()&&(I.destroy(),g=o(t,r||{}),S=g.header?document.querySelector(g.header):null,E=f(S),document.addEventListener("click",C,!1),S&&e.addEventListener("resize",w,!1),g.updateURL&&g.popstate&&e.addEventListener("popstate",L,!1))},I.init(p),I}}));
\ No newline at end of file
+/*! smooth-scroll v14.1.0 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
+!(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},n=function(){return"querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype},o=function(){for(var e={},t=0;t<arguments.length;t++)!(function(t){for(var n in t)t.hasOwnProperty(n)&&(e[n]=t[n])})(arguments[t]);return e},r=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)},a=function(t){return parseInt(e.getComputedStyle(t).height,10)},i=function(e){var t;try{t=decodeURIComponent(e)}catch(n){t=e}return t},u=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,r=-1,a="",i=n.charCodeAt(0);++r<o;){if(0===(t=n.charCodeAt(r)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===r&&t>=48&&t<=57||1===r&&t>=48&&t<=57&&45===i?a+="\\"+t.toString(16)+" ":a+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(r):"\\"+n.charAt(r)}var u;try{u=decodeURIComponent("#"+a)}catch(e){u="#"+a}return u},c=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(e,t,n){var o=0;if(e.offsetParent)do{o+=e.offsetTop,e=e.offsetParent}while(e);return o=Math.max(o-t-n,0)},f=function(e){return e?a(e)+e.offsetTop:0},d=function(t,n,o){0===t&&document.body.focus(),o||(t.focus(),document.activeElement!==t&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},m=function(e,t,n){t||history.pushState&&n.updateURL&&history.pushState({smoothScroll:JSON.stringify(n),anchor:e.id},document.title,e===document.documentElement?"#top":"#"+e.id)},h=function(t,n,o,r){if(n.emitEvents&&"function"==typeof e.CustomEvent){var a=new CustomEvent(t,{bubbles:!0,detail:{anchor:o,toggle:r}});document.dispatchEvent(a)}};return function(a,p){var g,v,y,S,E,b,O,I={};I.cancelScroll=function(e){cancelAnimationFrame(O),O=null,e||h("scrollCancel",g)},I.animateScroll=function(n,r,a){var i=o(g||t,a||{}),u="[object Number]"===Object.prototype.toString.call(n),p=u||!n.tagName?null:n;if(u||p){var v=e.pageYOffset;i.header&&!S&&(S=document.querySelector(i.header)),E||(E=f(S));var y,b,C,L=u?n:l(p,E,parseInt("function"==typeof i.offset?i.offset(n,r):i.offset,10)),w=L-v,A=s(),H=0,Q=function(t,o){var a=e.pageYOffset;if(t==o||a==o||(v<o&&e.innerHeight+a)>=A)return I.cancelScroll(!0),d(n,o,u),h("scrollStop",i,n,r),y=null,O=null,!0},q=function(t){y||(y=t),H+=t-y,b=H/parseInt(i.speed,10),b=b>1?1:b,C=v+w*c(i,b),e.scrollTo(0,Math.floor(C)),Q(C,L)||(O=e.requestAnimationFrame(q),y=t)};0===e.pageYOffset&&e.scrollTo(0,0),m(n,u,i),h("scrollStart",i,n,r),I.cancelScroll(!0),e.requestAnimationFrame(q)}};var C=function(t){if(!r()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&(y=t.target.closest(a))&&"a"===y.tagName.toLowerCase()&&!t.target.closest(g.ignore)&&y.hostname===e.location.hostname&&y.pathname===e.location.pathname&&/#/.test(y.href)){var n=u(i(y.hash)),o=g.topOnEmptyHash&&"#"===n?document.documentElement:document.querySelector(n);o=o||"#top"!==n?o:document.documentElement,o&&(t.preventDefault(),I.animateScroll(o,y))}},L=function(e){if(history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(g)&&history.state.anchor){var t=document.querySelector(u(i(history.state.anchor)));t&&I.animateScroll(t,null,{updateURL:!1})}},w=function(e){b||(b=setTimeout((function(){b=null,E=f(S)}),66))};return I.destroy=function(){g&&(document.removeEventListener("click",C,!1),e.removeEventListener("resize",w,!1),e.removeEventListener("popstate",L,!1),I.cancelScroll(),g=null,v=null,y=null,S=null,E=null,b=null,O=null)},I.init=function(r){n()&&(I.destroy(),g=o(t,r||{}),S=g.header?document.querySelector(g.header):null,E=f(S),document.addEventListener("click",C,!1),S&&e.addEventListener("resize",w,!1),g.updateURL&&g.popstate&&e.addEventListener("popstate",L,!1))},I.init(p),I}}));
\ No newline at end of file
diff --git a/docs/dist/smooth-scroll.polyfills.js b/docs/dist/smooth-scroll.polyfills.js
index c7149c7..dbc365e 100755
--- a/docs/dist/smooth-scroll.polyfills.js
+++ b/docs/dist/smooth-scroll.polyfills.js
@@ -1,5 +1,5 @@
 /*!
- * smooth-scroll v14.0.1: Animate scrolling to anchor links
+ * smooth-scroll v14.1.0: Animate scrolling to anchor links
  * (c) 2018 Chris Ferdinandi
  * MIT License
  * http://github.com/cferdinandi/smooth-scroll
@@ -475,7 +475,7 @@ if (window.Element && !Element.prototype.closest) {
 				// Get the height of a fixed header if one exists and not already set
 				headerHeight = getHeaderHeight(fixedHeader);
 			}
-			var endLocation = isNum ? anchor : getEndLocation(anchorElem, headerHeight, parseInt((typeof animateSettings.offset === 'function' ? animateSettings.offset() : animateSettings.offset), 10)); // Location to scroll to
+			var endLocation = isNum ? anchor : getEndLocation(anchorElem, headerHeight, parseInt((typeof animateSettings.offset === 'function' ? animateSettings.offset(anchor, toggle) : animateSettings.offset), 10)); // Location to scroll to
 			var distance = endLocation - startLocation; // distance to travel
 			var documentHeight = getDocumentHeight();
 			var timeLapsed = 0;
diff --git a/docs/dist/smooth-scroll.polyfills.min.js b/docs/dist/smooth-scroll.polyfills.min.js
index 5a61d9d..699ad81 100755
--- a/docs/dist/smooth-scroll.polyfills.min.js
+++ b/docs/dist/smooth-scroll.polyfills.min.js
@@ -1,2 +1,2 @@
-/*! smooth-scroll v14.0.1 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
-window.Element&&!Element.prototype.closest&&(Element.prototype.closest=function(e){var t,n=(this.document||this.ownerDocument).querySelectorAll(e),o=this;do{for(t=n.length;--t>=0&&n.item(t)!==o;);}while(t<0&&(o=o.parentElement));return o}),(function(){function e(e,t){t=t||{bubbles:!1,cancelable:!1,detail:void 0};var n=document.createEvent("CustomEvent");return n.initCustomEvent(e,t.bubbles,t.cancelable,t.detail),n}if("function"==typeof window.CustomEvent)return!1;e.prototype=window.Event.prototype,window.CustomEvent=e})(),(function(){for(var e=0,t=["ms","moz","webkit","o"],n=0;n<t.length&&!window.requestAnimationFrame;++n)window.requestAnimationFrame=window[t[n]+"RequestAnimationFrame"],window.cancelAnimationFrame=window[t[n]+"CancelAnimationFrame"]||window[t[n]+"CancelRequestAnimationFrame"];window.requestAnimationFrame||(window.requestAnimationFrame=function(t,n){var o=(new Date).getTime(),i=Math.max(0,16-(o-e)),a=window.setTimeout((function(){t(o+i)}),i);return e=o+i,a}),window.cancelAnimationFrame||(window.cancelAnimationFrame=function(e){clearTimeout(e)})})(),(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},n=function(){return"querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype},o=function(){for(var e={},t=0;t<arguments.length;t++)!(function(t){for(var n in t)t.hasOwnProperty(n)&&(e[n]=t[n])})(arguments[t]);return e},i=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)},a=function(t){return parseInt(e.getComputedStyle(t).height,10)},r=function(e){var t;try{t=decodeURIComponent(e)}catch(n){t=e}return t},u=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,i=-1,a="",r=n.charCodeAt(0);++i<o;){if(0===(t=n.charCodeAt(i)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===i&&t>=48&&t<=57||1===i&&t>=48&&t<=57&&45===r?a+="\\"+t.toString(16)+" ":a+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(i):"\\"+n.charAt(i)}var u;try{u=decodeURIComponent("#"+a)}catch(e){u="#"+a}return u},c=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(e,t,n){var o=0;if(e.offsetParent)do{o+=e.offsetTop,e=e.offsetParent}while(e);return o=Math.max(o-t-n,0)},m=function(e){return e?a(e)+e.offsetTop:0},d=function(t,n,o){0===t&&document.body.focus(),o||(t.focus(),document.activeElement!==t&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},f=function(e,t,n){t||history.pushState&&n.updateURL&&history.pushState({smoothScroll:JSON.stringify(n),anchor:e.id},document.title,e===document.documentElement?"#top":"#"+e.id)},h=function(t,n,o,i){if(n.emitEvents&&"function"==typeof e.CustomEvent){var a=new CustomEvent(t,{bubbles:!0,detail:{anchor:o,toggle:i}});document.dispatchEvent(a)}};return function(a,p){var g,v,w,y,E,b,S,A={};A.cancelScroll=function(e){cancelAnimationFrame(S),S=null,e||h("scrollCancel",g)},A.animateScroll=function(n,i,a){var r=o(g||t,a||{}),u="[object Number]"===Object.prototype.toString.call(n),p=u||!n.tagName?null:n;if(u||p){var v=e.pageYOffset;r.header&&!y&&(y=document.querySelector(r.header)),E||(E=m(y));var w,b,C,O=u?n:l(p,E,parseInt("function"==typeof r.offset?r.offset():r.offset,10)),I=O-v,q=s(),F=0,L=function(t,o){var a=e.pageYOffset;if(t==o||a==o||(v<o&&e.innerHeight+a)>=q)return A.cancelScroll(!0),d(n,o,u),h("scrollStop",r,n,i),w=null,S=null,!0},H=function(t){w||(w=t),F+=t-w,b=F/parseInt(r.speed,10),b=b>1?1:b,C=v+I*c(r,b),e.scrollTo(0,Math.floor(C)),L(C,O)||(S=e.requestAnimationFrame(H),w=t)};0===e.pageYOffset&&e.scrollTo(0,0),f(n,u,r),h("scrollStart",r,n,i),A.cancelScroll(!0),e.requestAnimationFrame(H)}};var C=function(t){if(!i()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&(w=t.target.closest(a))&&"a"===w.tagName.toLowerCase()&&!t.target.closest(g.ignore)&&w.hostname===e.location.hostname&&w.pathname===e.location.pathname&&/#/.test(w.href)){var n=u(r(w.hash)),o=g.topOnEmptyHash&&"#"===n?document.documentElement:document.querySelector(n);o=o||"#top"!==n?o:document.documentElement,o&&(t.preventDefault(),A.animateScroll(o,w))}},O=function(e){if(history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(g)&&history.state.anchor){var t=document.querySelector(u(r(history.state.anchor)));t&&A.animateScroll(t,null,{updateURL:!1})}},I=function(e){b||(b=setTimeout((function(){b=null,E=m(y)}),66))};return A.destroy=function(){g&&(document.removeEventListener("click",C,!1),e.removeEventListener("resize",I,!1),e.removeEventListener("popstate",O,!1),A.cancelScroll(),g=null,v=null,w=null,y=null,E=null,b=null,S=null)},A.init=function(i){n()&&(A.destroy(),g=o(t,i||{}),y=g.header?document.querySelector(g.header):null,E=m(y),document.addEventListener("click",C,!1),y&&e.addEventListener("resize",I,!1),g.updateURL&&g.popstate&&e.addEventListener("popstate",O,!1))},A.init(p),A}}));
\ No newline at end of file
+/*! smooth-scroll v14.1.0 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
+window.Element&&!Element.prototype.closest&&(Element.prototype.closest=function(e){var t,n=(this.document||this.ownerDocument).querySelectorAll(e),o=this;do{for(t=n.length;--t>=0&&n.item(t)!==o;);}while(t<0&&(o=o.parentElement));return o}),(function(){function e(e,t){t=t||{bubbles:!1,cancelable:!1,detail:void 0};var n=document.createEvent("CustomEvent");return n.initCustomEvent(e,t.bubbles,t.cancelable,t.detail),n}if("function"==typeof window.CustomEvent)return!1;e.prototype=window.Event.prototype,window.CustomEvent=e})(),(function(){for(var e=0,t=["ms","moz","webkit","o"],n=0;n<t.length&&!window.requestAnimationFrame;++n)window.requestAnimationFrame=window[t[n]+"RequestAnimationFrame"],window.cancelAnimationFrame=window[t[n]+"CancelAnimationFrame"]||window[t[n]+"CancelRequestAnimationFrame"];window.requestAnimationFrame||(window.requestAnimationFrame=function(t,n){var o=(new Date).getTime(),i=Math.max(0,16-(o-e)),a=window.setTimeout((function(){t(o+i)}),i);return e=o+i,a}),window.cancelAnimationFrame||(window.cancelAnimationFrame=function(e){clearTimeout(e)})})(),(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},n=function(){return"querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype},o=function(){for(var e={},t=0;t<arguments.length;t++)!(function(t){for(var n in t)t.hasOwnProperty(n)&&(e[n]=t[n])})(arguments[t]);return e},i=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)},a=function(t){return parseInt(e.getComputedStyle(t).height,10)},r=function(e){var t;try{t=decodeURIComponent(e)}catch(n){t=e}return t},u=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,i=-1,a="",r=n.charCodeAt(0);++i<o;){if(0===(t=n.charCodeAt(i)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===i&&t>=48&&t<=57||1===i&&t>=48&&t<=57&&45===r?a+="\\"+t.toString(16)+" ":a+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(i):"\\"+n.charAt(i)}var u;try{u=decodeURIComponent("#"+a)}catch(e){u="#"+a}return u},c=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(e,t,n){var o=0;if(e.offsetParent)do{o+=e.offsetTop,e=e.offsetParent}while(e);return o=Math.max(o-t-n,0)},m=function(e){return e?a(e)+e.offsetTop:0},d=function(t,n,o){0===t&&document.body.focus(),o||(t.focus(),document.activeElement!==t&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},f=function(e,t,n){t||history.pushState&&n.updateURL&&history.pushState({smoothScroll:JSON.stringify(n),anchor:e.id},document.title,e===document.documentElement?"#top":"#"+e.id)},h=function(t,n,o,i){if(n.emitEvents&&"function"==typeof e.CustomEvent){var a=new CustomEvent(t,{bubbles:!0,detail:{anchor:o,toggle:i}});document.dispatchEvent(a)}};return function(a,p){var g,v,w,y,E,b,S,A={};A.cancelScroll=function(e){cancelAnimationFrame(S),S=null,e||h("scrollCancel",g)},A.animateScroll=function(n,i,a){var r=o(g||t,a||{}),u="[object Number]"===Object.prototype.toString.call(n),p=u||!n.tagName?null:n;if(u||p){var v=e.pageYOffset;r.header&&!y&&(y=document.querySelector(r.header)),E||(E=m(y));var w,b,C,O=u?n:l(p,E,parseInt("function"==typeof r.offset?r.offset(n,i):r.offset,10)),I=O-v,q=s(),F=0,L=function(t,o){var a=e.pageYOffset;if(t==o||a==o||(v<o&&e.innerHeight+a)>=q)return A.cancelScroll(!0),d(n,o,u),h("scrollStop",r,n,i),w=null,S=null,!0},H=function(t){w||(w=t),F+=t-w,b=F/parseInt(r.speed,10),b=b>1?1:b,C=v+I*c(r,b),e.scrollTo(0,Math.floor(C)),L(C,O)||(S=e.requestAnimationFrame(H),w=t)};0===e.pageYOffset&&e.scrollTo(0,0),f(n,u,r),h("scrollStart",r,n,i),A.cancelScroll(!0),e.requestAnimationFrame(H)}};var C=function(t){if(!i()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&(w=t.target.closest(a))&&"a"===w.tagName.toLowerCase()&&!t.target.closest(g.ignore)&&w.hostname===e.location.hostname&&w.pathname===e.location.pathname&&/#/.test(w.href)){var n=u(r(w.hash)),o=g.topOnEmptyHash&&"#"===n?document.documentElement:document.querySelector(n);o=o||"#top"!==n?o:document.documentElement,o&&(t.preventDefault(),A.animateScroll(o,w))}},O=function(e){if(history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(g)&&history.state.anchor){var t=document.querySelector(u(r(history.state.anchor)));t&&A.animateScroll(t,null,{updateURL:!1})}},I=function(e){b||(b=setTimeout((function(){b=null,E=m(y)}),66))};return A.destroy=function(){g&&(document.removeEventListener("click",C,!1),e.removeEventListener("resize",I,!1),e.removeEventListener("popstate",O,!1),A.cancelScroll(),g=null,v=null,w=null,y=null,E=null,b=null,S=null)},A.init=function(i){n()&&(A.destroy(),g=o(t,i||{}),y=g.header?document.querySelector(g.header):null,E=m(y),document.addEventListener("click",C,!1),y&&e.addEventListener("resize",I,!1),g.updateURL&&g.popstate&&e.addEventListener("popstate",O,!1))},A.init(p),A}}));
\ No newline at end of file
diff --git a/package.json b/package.json
index b4348a8..a513a05 100755
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
 	"name": "smooth-scroll",
-	"version": "14.0.1",
+	"version": "14.1.0",
 	"description": "Animate scrolling to anchor links",
 	"main": "./dist/smooth-scroll.min.js",
 	"author": {
diff --git a/src/js/smooth-scroll.js b/src/js/smooth-scroll.js
index cc5457e..1041667 100755
--- a/src/js/smooth-scroll.js
+++ b/src/js/smooth-scroll.js
@@ -398,7 +398,7 @@
 				// Get the height of a fixed header if one exists and not already set
 				headerHeight = getHeaderHeight(fixedHeader);
 			}
-			var endLocation = isNum ? anchor : getEndLocation(anchorElem, headerHeight, parseInt((typeof animateSettings.offset === 'function' ? animateSettings.offset() : animateSettings.offset), 10)); // Location to scroll to
+			var endLocation = isNum ? anchor : getEndLocation(anchorElem, headerHeight, parseInt((typeof animateSettings.offset === 'function' ? animateSettings.offset(anchor, toggle) : animateSettings.offset), 10)); // Location to scroll to
 			var distance = endLocation - startLocation; // distance to travel
 			var documentHeight = getDocumentHeight();
 			var timeLapsed = 0;

From 279e0f9892f3e92e7f0aaeb092866c8745a04b2f Mon Sep 17 00:00:00 2001
From: cferdinandi <chris@gomakethings.com>
Date: Fri, 18 May 2018 11:53:58 -0400
Subject: [PATCH 12/51] Check for closest() method in event.target before
 calling Fixes https://github.com/cferdinandi/smooth-scroll/pull/401/

---
 dist/smooth-scroll.js                    | 60 +++++++++++++-----------
 dist/smooth-scroll.min.js                |  4 +-
 dist/smooth-scroll.polyfills.js          | 60 +++++++++++++-----------
 dist/smooth-scroll.polyfills.min.js      |  4 +-
 docs/dist/smooth-scroll.js               | 60 +++++++++++++-----------
 docs/dist/smooth-scroll.min.js           |  4 +-
 docs/dist/smooth-scroll.polyfills.js     | 60 +++++++++++++-----------
 docs/dist/smooth-scroll.polyfills.min.js |  4 +-
 package.json                             |  2 +-
 src/js/smooth-scroll.js                  | 58 ++++++++++++-----------
 10 files changed, 168 insertions(+), 148 deletions(-)

diff --git a/dist/smooth-scroll.js b/dist/smooth-scroll.js
index cc663d5..9240325 100755
--- a/dist/smooth-scroll.js
+++ b/dist/smooth-scroll.js
@@ -1,5 +1,5 @@
 /*!
- * smooth-scroll v14.1.0: Animate scrolling to anchor links
+ * smooth-scroll v14.1.1: Animate scrolling to anchor links
  * (c) 2018 Chris Ferdinandi
  * MIT License
  * http://github.com/cferdinandi/smooth-scroll
@@ -280,6 +280,32 @@
 		return !header ? 0 : (getHeight(header) + header.offsetTop);
 	};
 
+	/**
+	 * Update the URL
+	 * @param  {Node}    anchor  The anchor that was scrolled to
+	 * @param  {Boolean} isNum   If true, anchor is a number
+	 * @param  {Object}  options Settings for Smooth Scroll
+	 */
+	var updateURL = function (anchor, isNum, options) {
+
+		// Bail if the anchor is a number
+		if (isNum) return;
+
+		// Verify that pushState is supported and the updateURL option is enabled
+		if (!history.pushState || !options.updateURL) return;
+
+		// Update URL
+		history.pushState(
+			{
+				smoothScroll: JSON.stringify(options),
+				anchor: anchor.id
+			},
+			document.title,
+			anchor === document.documentElement ? '#top' : '#' + anchor.id
+		);
+
+	};
+
 	/**
 	 * Bring the anchored element into focus
 	 * @param {Node}     anchor      The anchor element
@@ -307,32 +333,6 @@
 
 	};
 
-	/**
-	 * Update the URL
-	 * @param  {Node}    anchor  The anchor that was scrolled to
-	 * @param  {Boolean} isNum   If true, anchor is a number
-	 * @param  {Object}  options Settings for Smooth Scroll
-	 */
-	var updateURL = function (anchor, isNum, options) {
-
-		// Bail if the anchor is a number
-		if (isNum) return;
-
-		// Verify that pushState is supported and the updateURL option is enabled
-		if (!history.pushState || !options.updateURL) return;
-
-		// Update URL
-		history.pushState(
-			{
-				smoothScroll: JSON.stringify(options),
-				anchor: anchor.id
-			},
-			document.title,
-			anchor === document.documentElement ? '#top' : '#' + anchor.id
-		);
-
-	};
-
 	/**
 	 * Emit a custom event
 	 * @param  {String} type    The event type
@@ -490,6 +490,10 @@
 			// Don't run if right-click or command/control + click
 			if (event.button !== 0 || event.metaKey || event.ctrlKey) return;
 
+			// Check if event.target has closest() method
+			// By @totegi - https://github.com/cferdinandi/smooth-scroll/pull/401/
+			if(!('closest' in event.target))return;
+
 			// Check if a smooth scroll link was clicked
 			toggle = event.target.closest(selector);
 			if (!toggle || toggle.tagName.toLowerCase() !== 'a' || event.target.closest(settings.ignore)) return;
@@ -577,7 +581,7 @@
 		smoothScroll.init = function (options) {
 
 			// feature test
-			if (!supports()) return;
+			if (!supports()) throw 'Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.';
 
 			// Destroy any existing initializations
 			smoothScroll.destroy();
diff --git a/dist/smooth-scroll.min.js b/dist/smooth-scroll.min.js
index 95484c4..8f25e97 100755
--- a/dist/smooth-scroll.min.js
+++ b/dist/smooth-scroll.min.js
@@ -1,2 +1,2 @@
-/*! smooth-scroll v14.1.0 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
-!(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},n=function(){return"querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype},o=function(){for(var e={},t=0;t<arguments.length;t++)!(function(t){for(var n in t)t.hasOwnProperty(n)&&(e[n]=t[n])})(arguments[t]);return e},r=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)},a=function(t){return parseInt(e.getComputedStyle(t).height,10)},i=function(e){var t;try{t=decodeURIComponent(e)}catch(n){t=e}return t},u=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,r=-1,a="",i=n.charCodeAt(0);++r<o;){if(0===(t=n.charCodeAt(r)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===r&&t>=48&&t<=57||1===r&&t>=48&&t<=57&&45===i?a+="\\"+t.toString(16)+" ":a+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(r):"\\"+n.charAt(r)}var u;try{u=decodeURIComponent("#"+a)}catch(e){u="#"+a}return u},c=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(e,t,n){var o=0;if(e.offsetParent)do{o+=e.offsetTop,e=e.offsetParent}while(e);return o=Math.max(o-t-n,0)},f=function(e){return e?a(e)+e.offsetTop:0},d=function(t,n,o){0===t&&document.body.focus(),o||(t.focus(),document.activeElement!==t&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},m=function(e,t,n){t||history.pushState&&n.updateURL&&history.pushState({smoothScroll:JSON.stringify(n),anchor:e.id},document.title,e===document.documentElement?"#top":"#"+e.id)},h=function(t,n,o,r){if(n.emitEvents&&"function"==typeof e.CustomEvent){var a=new CustomEvent(t,{bubbles:!0,detail:{anchor:o,toggle:r}});document.dispatchEvent(a)}};return function(a,p){var g,v,y,S,E,b,O,I={};I.cancelScroll=function(e){cancelAnimationFrame(O),O=null,e||h("scrollCancel",g)},I.animateScroll=function(n,r,a){var i=o(g||t,a||{}),u="[object Number]"===Object.prototype.toString.call(n),p=u||!n.tagName?null:n;if(u||p){var v=e.pageYOffset;i.header&&!S&&(S=document.querySelector(i.header)),E||(E=f(S));var y,b,C,L=u?n:l(p,E,parseInt("function"==typeof i.offset?i.offset(n,r):i.offset,10)),w=L-v,A=s(),H=0,Q=function(t,o){var a=e.pageYOffset;if(t==o||a==o||(v<o&&e.innerHeight+a)>=A)return I.cancelScroll(!0),d(n,o,u),h("scrollStop",i,n,r),y=null,O=null,!0},q=function(t){y||(y=t),H+=t-y,b=H/parseInt(i.speed,10),b=b>1?1:b,C=v+w*c(i,b),e.scrollTo(0,Math.floor(C)),Q(C,L)||(O=e.requestAnimationFrame(q),y=t)};0===e.pageYOffset&&e.scrollTo(0,0),m(n,u,i),h("scrollStart",i,n,r),I.cancelScroll(!0),e.requestAnimationFrame(q)}};var C=function(t){if(!r()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&(y=t.target.closest(a))&&"a"===y.tagName.toLowerCase()&&!t.target.closest(g.ignore)&&y.hostname===e.location.hostname&&y.pathname===e.location.pathname&&/#/.test(y.href)){var n=u(i(y.hash)),o=g.topOnEmptyHash&&"#"===n?document.documentElement:document.querySelector(n);o=o||"#top"!==n?o:document.documentElement,o&&(t.preventDefault(),I.animateScroll(o,y))}},L=function(e){if(history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(g)&&history.state.anchor){var t=document.querySelector(u(i(history.state.anchor)));t&&I.animateScroll(t,null,{updateURL:!1})}},w=function(e){b||(b=setTimeout((function(){b=null,E=f(S)}),66))};return I.destroy=function(){g&&(document.removeEventListener("click",C,!1),e.removeEventListener("resize",w,!1),e.removeEventListener("popstate",L,!1),I.cancelScroll(),g=null,v=null,y=null,S=null,E=null,b=null,O=null)},I.init=function(r){n()&&(I.destroy(),g=o(t,r||{}),S=g.header?document.querySelector(g.header):null,E=f(S),document.addEventListener("click",C,!1),S&&e.addEventListener("resize",w,!1),g.updateURL&&g.popstate&&e.addEventListener("popstate",L,!1))},I.init(p),I}}));
\ No newline at end of file
+/*! smooth-scroll v14.1.1 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
+!(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},n=function(){return"querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype},o=function(){for(var e={},t=0;t<arguments.length;t++)!(function(t){for(var n in t)t.hasOwnProperty(n)&&(e[n]=t[n])})(arguments[t]);return e},r=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)},a=function(t){return parseInt(e.getComputedStyle(t).height,10)},i=function(e){var t;try{t=decodeURIComponent(e)}catch(n){t=e}return t},c=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,r=-1,a="",i=n.charCodeAt(0);++r<o;){if(0===(t=n.charCodeAt(r)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===r&&t>=48&&t<=57||1===r&&t>=48&&t<=57&&45===i?a+="\\"+t.toString(16)+" ":a+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(r):"\\"+n.charAt(r)}var c;try{c=decodeURIComponent("#"+a)}catch(e){c="#"+a}return c},u=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(e,t,n){var o=0;if(e.offsetParent)do{o+=e.offsetTop,e=e.offsetParent}while(e);return o=Math.max(o-t-n,0)},d=function(e){return e?a(e)+e.offsetTop:0},f=function(e,t,n){t||history.pushState&&n.updateURL&&history.pushState({smoothScroll:JSON.stringify(n),anchor:e.id},document.title,e===document.documentElement?"#top":"#"+e.id)},m=function(t,n,o){0===t&&document.body.focus(),o||(t.focus(),document.activeElement!==t&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},h=function(t,n,o,r){if(n.emitEvents&&"function"==typeof e.CustomEvent){var a=new CustomEvent(t,{bubbles:!0,detail:{anchor:o,toggle:r}});document.dispatchEvent(a)}};return function(a,p){var g,v,y,S,E,b,O,I={};I.cancelScroll=function(e){cancelAnimationFrame(O),O=null,e||h("scrollCancel",g)},I.animateScroll=function(n,r,a){var i=o(g||t,a||{}),c="[object Number]"===Object.prototype.toString.call(n),p=c||!n.tagName?null:n;if(c||p){var v=e.pageYOffset;i.header&&!S&&(S=document.querySelector(i.header)),E||(E=d(S));var y,b,C,w=c?n:l(p,E,parseInt("function"==typeof i.offset?i.offset(n,r):i.offset,10)),L=w-v,A=s(),q=0,H=function(t,o){var a=e.pageYOffset;if(t==o||a==o||(v<o&&e.innerHeight+a)>=A)return I.cancelScroll(!0),m(n,o,c),h("scrollStop",i,n,r),y=null,O=null,!0},Q=function(t){y||(y=t),q+=t-y,b=q/parseInt(i.speed,10),b=b>1?1:b,C=v+L*u(i,b),e.scrollTo(0,Math.floor(C)),H(C,w)||(O=e.requestAnimationFrame(Q),y=t)};0===e.pageYOffset&&e.scrollTo(0,0),f(n,c,i),h("scrollStart",i,n,r),I.cancelScroll(!0),e.requestAnimationFrame(Q)}};var C=function(t){if(!r()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&"closest"in t.target&&(y=t.target.closest(a))&&"a"===y.tagName.toLowerCase()&&!t.target.closest(g.ignore)&&y.hostname===e.location.hostname&&y.pathname===e.location.pathname&&/#/.test(y.href)){var n=c(i(y.hash)),o=g.topOnEmptyHash&&"#"===n?document.documentElement:document.querySelector(n);o=o||"#top"!==n?o:document.documentElement,o&&(t.preventDefault(),I.animateScroll(o,y))}},w=function(e){if(history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(g)&&history.state.anchor){var t=document.querySelector(c(i(history.state.anchor)));t&&I.animateScroll(t,null,{updateURL:!1})}},L=function(e){b||(b=setTimeout((function(){b=null,E=d(S)}),66))};return I.destroy=function(){g&&(document.removeEventListener("click",C,!1),e.removeEventListener("resize",L,!1),e.removeEventListener("popstate",w,!1),I.cancelScroll(),g=null,v=null,y=null,S=null,E=null,b=null,O=null)},I.init=function(r){if(!n())throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";I.destroy(),g=o(t,r||{}),S=g.header?document.querySelector(g.header):null,E=d(S),document.addEventListener("click",C,!1),S&&e.addEventListener("resize",L,!1),g.updateURL&&g.popstate&&e.addEventListener("popstate",w,!1)},I.init(p),I}}));
\ No newline at end of file
diff --git a/dist/smooth-scroll.polyfills.js b/dist/smooth-scroll.polyfills.js
index dbc365e..80e0969 100755
--- a/dist/smooth-scroll.polyfills.js
+++ b/dist/smooth-scroll.polyfills.js
@@ -1,5 +1,5 @@
 /*!
- * smooth-scroll v14.1.0: Animate scrolling to anchor links
+ * smooth-scroll v14.1.1: Animate scrolling to anchor links
  * (c) 2018 Chris Ferdinandi
  * MIT License
  * http://github.com/cferdinandi/smooth-scroll
@@ -350,6 +350,32 @@ if (window.Element && !Element.prototype.closest) {
 		return !header ? 0 : (getHeight(header) + header.offsetTop);
 	};
 
+	/**
+	 * Update the URL
+	 * @param  {Node}    anchor  The anchor that was scrolled to
+	 * @param  {Boolean} isNum   If true, anchor is a number
+	 * @param  {Object}  options Settings for Smooth Scroll
+	 */
+	var updateURL = function (anchor, isNum, options) {
+
+		// Bail if the anchor is a number
+		if (isNum) return;
+
+		// Verify that pushState is supported and the updateURL option is enabled
+		if (!history.pushState || !options.updateURL) return;
+
+		// Update URL
+		history.pushState(
+			{
+				smoothScroll: JSON.stringify(options),
+				anchor: anchor.id
+			},
+			document.title,
+			anchor === document.documentElement ? '#top' : '#' + anchor.id
+		);
+
+	};
+
 	/**
 	 * Bring the anchored element into focus
 	 * @param {Node}     anchor      The anchor element
@@ -377,32 +403,6 @@ if (window.Element && !Element.prototype.closest) {
 
 	};
 
-	/**
-	 * Update the URL
-	 * @param  {Node}    anchor  The anchor that was scrolled to
-	 * @param  {Boolean} isNum   If true, anchor is a number
-	 * @param  {Object}  options Settings for Smooth Scroll
-	 */
-	var updateURL = function (anchor, isNum, options) {
-
-		// Bail if the anchor is a number
-		if (isNum) return;
-
-		// Verify that pushState is supported and the updateURL option is enabled
-		if (!history.pushState || !options.updateURL) return;
-
-		// Update URL
-		history.pushState(
-			{
-				smoothScroll: JSON.stringify(options),
-				anchor: anchor.id
-			},
-			document.title,
-			anchor === document.documentElement ? '#top' : '#' + anchor.id
-		);
-
-	};
-
 	/**
 	 * Emit a custom event
 	 * @param  {String} type    The event type
@@ -560,6 +560,10 @@ if (window.Element && !Element.prototype.closest) {
 			// Don't run if right-click or command/control + click
 			if (event.button !== 0 || event.metaKey || event.ctrlKey) return;
 
+			// Check if event.target has closest() method
+			// By @totegi - https://github.com/cferdinandi/smooth-scroll/pull/401/
+			if(!('closest' in event.target))return;
+
 			// Check if a smooth scroll link was clicked
 			toggle = event.target.closest(selector);
 			if (!toggle || toggle.tagName.toLowerCase() !== 'a' || event.target.closest(settings.ignore)) return;
@@ -647,7 +651,7 @@ if (window.Element && !Element.prototype.closest) {
 		smoothScroll.init = function (options) {
 
 			// feature test
-			if (!supports()) return;
+			if (!supports()) throw 'Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.';
 
 			// Destroy any existing initializations
 			smoothScroll.destroy();
diff --git a/dist/smooth-scroll.polyfills.min.js b/dist/smooth-scroll.polyfills.min.js
index 699ad81..2f88272 100755
--- a/dist/smooth-scroll.polyfills.min.js
+++ b/dist/smooth-scroll.polyfills.min.js
@@ -1,2 +1,2 @@
-/*! smooth-scroll v14.1.0 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
-window.Element&&!Element.prototype.closest&&(Element.prototype.closest=function(e){var t,n=(this.document||this.ownerDocument).querySelectorAll(e),o=this;do{for(t=n.length;--t>=0&&n.item(t)!==o;);}while(t<0&&(o=o.parentElement));return o}),(function(){function e(e,t){t=t||{bubbles:!1,cancelable:!1,detail:void 0};var n=document.createEvent("CustomEvent");return n.initCustomEvent(e,t.bubbles,t.cancelable,t.detail),n}if("function"==typeof window.CustomEvent)return!1;e.prototype=window.Event.prototype,window.CustomEvent=e})(),(function(){for(var e=0,t=["ms","moz","webkit","o"],n=0;n<t.length&&!window.requestAnimationFrame;++n)window.requestAnimationFrame=window[t[n]+"RequestAnimationFrame"],window.cancelAnimationFrame=window[t[n]+"CancelAnimationFrame"]||window[t[n]+"CancelRequestAnimationFrame"];window.requestAnimationFrame||(window.requestAnimationFrame=function(t,n){var o=(new Date).getTime(),i=Math.max(0,16-(o-e)),a=window.setTimeout((function(){t(o+i)}),i);return e=o+i,a}),window.cancelAnimationFrame||(window.cancelAnimationFrame=function(e){clearTimeout(e)})})(),(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},n=function(){return"querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype},o=function(){for(var e={},t=0;t<arguments.length;t++)!(function(t){for(var n in t)t.hasOwnProperty(n)&&(e[n]=t[n])})(arguments[t]);return e},i=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)},a=function(t){return parseInt(e.getComputedStyle(t).height,10)},r=function(e){var t;try{t=decodeURIComponent(e)}catch(n){t=e}return t},u=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,i=-1,a="",r=n.charCodeAt(0);++i<o;){if(0===(t=n.charCodeAt(i)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===i&&t>=48&&t<=57||1===i&&t>=48&&t<=57&&45===r?a+="\\"+t.toString(16)+" ":a+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(i):"\\"+n.charAt(i)}var u;try{u=decodeURIComponent("#"+a)}catch(e){u="#"+a}return u},c=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(e,t,n){var o=0;if(e.offsetParent)do{o+=e.offsetTop,e=e.offsetParent}while(e);return o=Math.max(o-t-n,0)},m=function(e){return e?a(e)+e.offsetTop:0},d=function(t,n,o){0===t&&document.body.focus(),o||(t.focus(),document.activeElement!==t&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},f=function(e,t,n){t||history.pushState&&n.updateURL&&history.pushState({smoothScroll:JSON.stringify(n),anchor:e.id},document.title,e===document.documentElement?"#top":"#"+e.id)},h=function(t,n,o,i){if(n.emitEvents&&"function"==typeof e.CustomEvent){var a=new CustomEvent(t,{bubbles:!0,detail:{anchor:o,toggle:i}});document.dispatchEvent(a)}};return function(a,p){var g,v,w,y,E,b,S,A={};A.cancelScroll=function(e){cancelAnimationFrame(S),S=null,e||h("scrollCancel",g)},A.animateScroll=function(n,i,a){var r=o(g||t,a||{}),u="[object Number]"===Object.prototype.toString.call(n),p=u||!n.tagName?null:n;if(u||p){var v=e.pageYOffset;r.header&&!y&&(y=document.querySelector(r.header)),E||(E=m(y));var w,b,C,O=u?n:l(p,E,parseInt("function"==typeof r.offset?r.offset(n,i):r.offset,10)),I=O-v,q=s(),F=0,L=function(t,o){var a=e.pageYOffset;if(t==o||a==o||(v<o&&e.innerHeight+a)>=q)return A.cancelScroll(!0),d(n,o,u),h("scrollStop",r,n,i),w=null,S=null,!0},H=function(t){w||(w=t),F+=t-w,b=F/parseInt(r.speed,10),b=b>1?1:b,C=v+I*c(r,b),e.scrollTo(0,Math.floor(C)),L(C,O)||(S=e.requestAnimationFrame(H),w=t)};0===e.pageYOffset&&e.scrollTo(0,0),f(n,u,r),h("scrollStart",r,n,i),A.cancelScroll(!0),e.requestAnimationFrame(H)}};var C=function(t){if(!i()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&(w=t.target.closest(a))&&"a"===w.tagName.toLowerCase()&&!t.target.closest(g.ignore)&&w.hostname===e.location.hostname&&w.pathname===e.location.pathname&&/#/.test(w.href)){var n=u(r(w.hash)),o=g.topOnEmptyHash&&"#"===n?document.documentElement:document.querySelector(n);o=o||"#top"!==n?o:document.documentElement,o&&(t.preventDefault(),A.animateScroll(o,w))}},O=function(e){if(history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(g)&&history.state.anchor){var t=document.querySelector(u(r(history.state.anchor)));t&&A.animateScroll(t,null,{updateURL:!1})}},I=function(e){b||(b=setTimeout((function(){b=null,E=m(y)}),66))};return A.destroy=function(){g&&(document.removeEventListener("click",C,!1),e.removeEventListener("resize",I,!1),e.removeEventListener("popstate",O,!1),A.cancelScroll(),g=null,v=null,w=null,y=null,E=null,b=null,S=null)},A.init=function(i){n()&&(A.destroy(),g=o(t,i||{}),y=g.header?document.querySelector(g.header):null,E=m(y),document.addEventListener("click",C,!1),y&&e.addEventListener("resize",I,!1),g.updateURL&&g.popstate&&e.addEventListener("popstate",O,!1))},A.init(p),A}}));
\ No newline at end of file
+/*! smooth-scroll v14.1.1 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
+window.Element&&!Element.prototype.closest&&(Element.prototype.closest=function(e){var t,n=(this.document||this.ownerDocument).querySelectorAll(e),o=this;do{for(t=n.length;--t>=0&&n.item(t)!==o;);}while(t<0&&(o=o.parentElement));return o}),(function(){function e(e,t){t=t||{bubbles:!1,cancelable:!1,detail:void 0};var n=document.createEvent("CustomEvent");return n.initCustomEvent(e,t.bubbles,t.cancelable,t.detail),n}if("function"==typeof window.CustomEvent)return!1;e.prototype=window.Event.prototype,window.CustomEvent=e})(),(function(){for(var e=0,t=["ms","moz","webkit","o"],n=0;n<t.length&&!window.requestAnimationFrame;++n)window.requestAnimationFrame=window[t[n]+"RequestAnimationFrame"],window.cancelAnimationFrame=window[t[n]+"CancelAnimationFrame"]||window[t[n]+"CancelRequestAnimationFrame"];window.requestAnimationFrame||(window.requestAnimationFrame=function(t,n){var o=(new Date).getTime(),r=Math.max(0,16-(o-e)),i=window.setTimeout((function(){t(o+r)}),r);return e=o+r,i}),window.cancelAnimationFrame||(window.cancelAnimationFrame=function(e){clearTimeout(e)})})(),(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},n=function(){return"querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype},o=function(){for(var e={},t=0;t<arguments.length;t++)!(function(t){for(var n in t)t.hasOwnProperty(n)&&(e[n]=t[n])})(arguments[t]);return e},r=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)},i=function(t){return parseInt(e.getComputedStyle(t).height,10)},a=function(e){var t;try{t=decodeURIComponent(e)}catch(n){t=e}return t},u=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,r=-1,i="",a=n.charCodeAt(0);++r<o;){if(0===(t=n.charCodeAt(r)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===r&&t>=48&&t<=57||1===r&&t>=48&&t<=57&&45===a?i+="\\"+t.toString(16)+" ":i+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(r):"\\"+n.charAt(r)}var u;try{u=decodeURIComponent("#"+i)}catch(e){u="#"+i}return u},c=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(e,t,n){var o=0;if(e.offsetParent)do{o+=e.offsetTop,e=e.offsetParent}while(e);return o=Math.max(o-t-n,0)},m=function(e){return e?i(e)+e.offsetTop:0},d=function(e,t,n){t||history.pushState&&n.updateURL&&history.pushState({smoothScroll:JSON.stringify(n),anchor:e.id},document.title,e===document.documentElement?"#top":"#"+e.id)},f=function(t,n,o){0===t&&document.body.focus(),o||(t.focus(),document.activeElement!==t&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},h=function(t,n,o,r){if(n.emitEvents&&"function"==typeof e.CustomEvent){var i=new CustomEvent(t,{bubbles:!0,detail:{anchor:o,toggle:r}});document.dispatchEvent(i)}};return function(i,p){var g,v,w,y,E,b,S,A={};A.cancelScroll=function(e){cancelAnimationFrame(S),S=null,e||h("scrollCancel",g)},A.animateScroll=function(n,r,i){var a=o(g||t,i||{}),u="[object Number]"===Object.prototype.toString.call(n),p=u||!n.tagName?null:n;if(u||p){var v=e.pageYOffset;a.header&&!y&&(y=document.querySelector(a.header)),E||(E=m(y));var w,b,C,O=u?n:l(p,E,parseInt("function"==typeof a.offset?a.offset(n,r):a.offset,10)),I=O-v,q=s(),F=0,L=function(t,o){var i=e.pageYOffset;if(t==o||i==o||(v<o&&e.innerHeight+i)>=q)return A.cancelScroll(!0),f(n,o,u),h("scrollStop",a,n,r),w=null,S=null,!0},T=function(t){w||(w=t),F+=t-w,b=F/parseInt(a.speed,10),b=b>1?1:b,C=v+I*c(a,b),e.scrollTo(0,Math.floor(C)),L(C,O)||(S=e.requestAnimationFrame(T),w=t)};0===e.pageYOffset&&e.scrollTo(0,0),d(n,u,a),h("scrollStart",a,n,r),A.cancelScroll(!0),e.requestAnimationFrame(T)}};var C=function(t){if(!r()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&"closest"in t.target&&(w=t.target.closest(i))&&"a"===w.tagName.toLowerCase()&&!t.target.closest(g.ignore)&&w.hostname===e.location.hostname&&w.pathname===e.location.pathname&&/#/.test(w.href)){var n=u(a(w.hash)),o=g.topOnEmptyHash&&"#"===n?document.documentElement:document.querySelector(n);o=o||"#top"!==n?o:document.documentElement,o&&(t.preventDefault(),A.animateScroll(o,w))}},O=function(e){if(history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(g)&&history.state.anchor){var t=document.querySelector(u(a(history.state.anchor)));t&&A.animateScroll(t,null,{updateURL:!1})}},I=function(e){b||(b=setTimeout((function(){b=null,E=m(y)}),66))};return A.destroy=function(){g&&(document.removeEventListener("click",C,!1),e.removeEventListener("resize",I,!1),e.removeEventListener("popstate",O,!1),A.cancelScroll(),g=null,v=null,w=null,y=null,E=null,b=null,S=null)},A.init=function(r){if(!n())throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";A.destroy(),g=o(t,r||{}),y=g.header?document.querySelector(g.header):null,E=m(y),document.addEventListener("click",C,!1),y&&e.addEventListener("resize",I,!1),g.updateURL&&g.popstate&&e.addEventListener("popstate",O,!1)},A.init(p),A}}));
\ No newline at end of file
diff --git a/docs/dist/smooth-scroll.js b/docs/dist/smooth-scroll.js
index cc663d5..9240325 100755
--- a/docs/dist/smooth-scroll.js
+++ b/docs/dist/smooth-scroll.js
@@ -1,5 +1,5 @@
 /*!
- * smooth-scroll v14.1.0: Animate scrolling to anchor links
+ * smooth-scroll v14.1.1: Animate scrolling to anchor links
  * (c) 2018 Chris Ferdinandi
  * MIT License
  * http://github.com/cferdinandi/smooth-scroll
@@ -280,6 +280,32 @@
 		return !header ? 0 : (getHeight(header) + header.offsetTop);
 	};
 
+	/**
+	 * Update the URL
+	 * @param  {Node}    anchor  The anchor that was scrolled to
+	 * @param  {Boolean} isNum   If true, anchor is a number
+	 * @param  {Object}  options Settings for Smooth Scroll
+	 */
+	var updateURL = function (anchor, isNum, options) {
+
+		// Bail if the anchor is a number
+		if (isNum) return;
+
+		// Verify that pushState is supported and the updateURL option is enabled
+		if (!history.pushState || !options.updateURL) return;
+
+		// Update URL
+		history.pushState(
+			{
+				smoothScroll: JSON.stringify(options),
+				anchor: anchor.id
+			},
+			document.title,
+			anchor === document.documentElement ? '#top' : '#' + anchor.id
+		);
+
+	};
+
 	/**
 	 * Bring the anchored element into focus
 	 * @param {Node}     anchor      The anchor element
@@ -307,32 +333,6 @@
 
 	};
 
-	/**
-	 * Update the URL
-	 * @param  {Node}    anchor  The anchor that was scrolled to
-	 * @param  {Boolean} isNum   If true, anchor is a number
-	 * @param  {Object}  options Settings for Smooth Scroll
-	 */
-	var updateURL = function (anchor, isNum, options) {
-
-		// Bail if the anchor is a number
-		if (isNum) return;
-
-		// Verify that pushState is supported and the updateURL option is enabled
-		if (!history.pushState || !options.updateURL) return;
-
-		// Update URL
-		history.pushState(
-			{
-				smoothScroll: JSON.stringify(options),
-				anchor: anchor.id
-			},
-			document.title,
-			anchor === document.documentElement ? '#top' : '#' + anchor.id
-		);
-
-	};
-
 	/**
 	 * Emit a custom event
 	 * @param  {String} type    The event type
@@ -490,6 +490,10 @@
 			// Don't run if right-click or command/control + click
 			if (event.button !== 0 || event.metaKey || event.ctrlKey) return;
 
+			// Check if event.target has closest() method
+			// By @totegi - https://github.com/cferdinandi/smooth-scroll/pull/401/
+			if(!('closest' in event.target))return;
+
 			// Check if a smooth scroll link was clicked
 			toggle = event.target.closest(selector);
 			if (!toggle || toggle.tagName.toLowerCase() !== 'a' || event.target.closest(settings.ignore)) return;
@@ -577,7 +581,7 @@
 		smoothScroll.init = function (options) {
 
 			// feature test
-			if (!supports()) return;
+			if (!supports()) throw 'Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.';
 
 			// Destroy any existing initializations
 			smoothScroll.destroy();
diff --git a/docs/dist/smooth-scroll.min.js b/docs/dist/smooth-scroll.min.js
index 95484c4..8f25e97 100755
--- a/docs/dist/smooth-scroll.min.js
+++ b/docs/dist/smooth-scroll.min.js
@@ -1,2 +1,2 @@
-/*! smooth-scroll v14.1.0 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
-!(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},n=function(){return"querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype},o=function(){for(var e={},t=0;t<arguments.length;t++)!(function(t){for(var n in t)t.hasOwnProperty(n)&&(e[n]=t[n])})(arguments[t]);return e},r=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)},a=function(t){return parseInt(e.getComputedStyle(t).height,10)},i=function(e){var t;try{t=decodeURIComponent(e)}catch(n){t=e}return t},u=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,r=-1,a="",i=n.charCodeAt(0);++r<o;){if(0===(t=n.charCodeAt(r)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===r&&t>=48&&t<=57||1===r&&t>=48&&t<=57&&45===i?a+="\\"+t.toString(16)+" ":a+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(r):"\\"+n.charAt(r)}var u;try{u=decodeURIComponent("#"+a)}catch(e){u="#"+a}return u},c=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(e,t,n){var o=0;if(e.offsetParent)do{o+=e.offsetTop,e=e.offsetParent}while(e);return o=Math.max(o-t-n,0)},f=function(e){return e?a(e)+e.offsetTop:0},d=function(t,n,o){0===t&&document.body.focus(),o||(t.focus(),document.activeElement!==t&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},m=function(e,t,n){t||history.pushState&&n.updateURL&&history.pushState({smoothScroll:JSON.stringify(n),anchor:e.id},document.title,e===document.documentElement?"#top":"#"+e.id)},h=function(t,n,o,r){if(n.emitEvents&&"function"==typeof e.CustomEvent){var a=new CustomEvent(t,{bubbles:!0,detail:{anchor:o,toggle:r}});document.dispatchEvent(a)}};return function(a,p){var g,v,y,S,E,b,O,I={};I.cancelScroll=function(e){cancelAnimationFrame(O),O=null,e||h("scrollCancel",g)},I.animateScroll=function(n,r,a){var i=o(g||t,a||{}),u="[object Number]"===Object.prototype.toString.call(n),p=u||!n.tagName?null:n;if(u||p){var v=e.pageYOffset;i.header&&!S&&(S=document.querySelector(i.header)),E||(E=f(S));var y,b,C,L=u?n:l(p,E,parseInt("function"==typeof i.offset?i.offset(n,r):i.offset,10)),w=L-v,A=s(),H=0,Q=function(t,o){var a=e.pageYOffset;if(t==o||a==o||(v<o&&e.innerHeight+a)>=A)return I.cancelScroll(!0),d(n,o,u),h("scrollStop",i,n,r),y=null,O=null,!0},q=function(t){y||(y=t),H+=t-y,b=H/parseInt(i.speed,10),b=b>1?1:b,C=v+w*c(i,b),e.scrollTo(0,Math.floor(C)),Q(C,L)||(O=e.requestAnimationFrame(q),y=t)};0===e.pageYOffset&&e.scrollTo(0,0),m(n,u,i),h("scrollStart",i,n,r),I.cancelScroll(!0),e.requestAnimationFrame(q)}};var C=function(t){if(!r()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&(y=t.target.closest(a))&&"a"===y.tagName.toLowerCase()&&!t.target.closest(g.ignore)&&y.hostname===e.location.hostname&&y.pathname===e.location.pathname&&/#/.test(y.href)){var n=u(i(y.hash)),o=g.topOnEmptyHash&&"#"===n?document.documentElement:document.querySelector(n);o=o||"#top"!==n?o:document.documentElement,o&&(t.preventDefault(),I.animateScroll(o,y))}},L=function(e){if(history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(g)&&history.state.anchor){var t=document.querySelector(u(i(history.state.anchor)));t&&I.animateScroll(t,null,{updateURL:!1})}},w=function(e){b||(b=setTimeout((function(){b=null,E=f(S)}),66))};return I.destroy=function(){g&&(document.removeEventListener("click",C,!1),e.removeEventListener("resize",w,!1),e.removeEventListener("popstate",L,!1),I.cancelScroll(),g=null,v=null,y=null,S=null,E=null,b=null,O=null)},I.init=function(r){n()&&(I.destroy(),g=o(t,r||{}),S=g.header?document.querySelector(g.header):null,E=f(S),document.addEventListener("click",C,!1),S&&e.addEventListener("resize",w,!1),g.updateURL&&g.popstate&&e.addEventListener("popstate",L,!1))},I.init(p),I}}));
\ No newline at end of file
+/*! smooth-scroll v14.1.1 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
+!(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},n=function(){return"querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype},o=function(){for(var e={},t=0;t<arguments.length;t++)!(function(t){for(var n in t)t.hasOwnProperty(n)&&(e[n]=t[n])})(arguments[t]);return e},r=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)},a=function(t){return parseInt(e.getComputedStyle(t).height,10)},i=function(e){var t;try{t=decodeURIComponent(e)}catch(n){t=e}return t},c=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,r=-1,a="",i=n.charCodeAt(0);++r<o;){if(0===(t=n.charCodeAt(r)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===r&&t>=48&&t<=57||1===r&&t>=48&&t<=57&&45===i?a+="\\"+t.toString(16)+" ":a+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(r):"\\"+n.charAt(r)}var c;try{c=decodeURIComponent("#"+a)}catch(e){c="#"+a}return c},u=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(e,t,n){var o=0;if(e.offsetParent)do{o+=e.offsetTop,e=e.offsetParent}while(e);return o=Math.max(o-t-n,0)},d=function(e){return e?a(e)+e.offsetTop:0},f=function(e,t,n){t||history.pushState&&n.updateURL&&history.pushState({smoothScroll:JSON.stringify(n),anchor:e.id},document.title,e===document.documentElement?"#top":"#"+e.id)},m=function(t,n,o){0===t&&document.body.focus(),o||(t.focus(),document.activeElement!==t&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},h=function(t,n,o,r){if(n.emitEvents&&"function"==typeof e.CustomEvent){var a=new CustomEvent(t,{bubbles:!0,detail:{anchor:o,toggle:r}});document.dispatchEvent(a)}};return function(a,p){var g,v,y,S,E,b,O,I={};I.cancelScroll=function(e){cancelAnimationFrame(O),O=null,e||h("scrollCancel",g)},I.animateScroll=function(n,r,a){var i=o(g||t,a||{}),c="[object Number]"===Object.prototype.toString.call(n),p=c||!n.tagName?null:n;if(c||p){var v=e.pageYOffset;i.header&&!S&&(S=document.querySelector(i.header)),E||(E=d(S));var y,b,C,w=c?n:l(p,E,parseInt("function"==typeof i.offset?i.offset(n,r):i.offset,10)),L=w-v,A=s(),q=0,H=function(t,o){var a=e.pageYOffset;if(t==o||a==o||(v<o&&e.innerHeight+a)>=A)return I.cancelScroll(!0),m(n,o,c),h("scrollStop",i,n,r),y=null,O=null,!0},Q=function(t){y||(y=t),q+=t-y,b=q/parseInt(i.speed,10),b=b>1?1:b,C=v+L*u(i,b),e.scrollTo(0,Math.floor(C)),H(C,w)||(O=e.requestAnimationFrame(Q),y=t)};0===e.pageYOffset&&e.scrollTo(0,0),f(n,c,i),h("scrollStart",i,n,r),I.cancelScroll(!0),e.requestAnimationFrame(Q)}};var C=function(t){if(!r()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&"closest"in t.target&&(y=t.target.closest(a))&&"a"===y.tagName.toLowerCase()&&!t.target.closest(g.ignore)&&y.hostname===e.location.hostname&&y.pathname===e.location.pathname&&/#/.test(y.href)){var n=c(i(y.hash)),o=g.topOnEmptyHash&&"#"===n?document.documentElement:document.querySelector(n);o=o||"#top"!==n?o:document.documentElement,o&&(t.preventDefault(),I.animateScroll(o,y))}},w=function(e){if(history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(g)&&history.state.anchor){var t=document.querySelector(c(i(history.state.anchor)));t&&I.animateScroll(t,null,{updateURL:!1})}},L=function(e){b||(b=setTimeout((function(){b=null,E=d(S)}),66))};return I.destroy=function(){g&&(document.removeEventListener("click",C,!1),e.removeEventListener("resize",L,!1),e.removeEventListener("popstate",w,!1),I.cancelScroll(),g=null,v=null,y=null,S=null,E=null,b=null,O=null)},I.init=function(r){if(!n())throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";I.destroy(),g=o(t,r||{}),S=g.header?document.querySelector(g.header):null,E=d(S),document.addEventListener("click",C,!1),S&&e.addEventListener("resize",L,!1),g.updateURL&&g.popstate&&e.addEventListener("popstate",w,!1)},I.init(p),I}}));
\ No newline at end of file
diff --git a/docs/dist/smooth-scroll.polyfills.js b/docs/dist/smooth-scroll.polyfills.js
index dbc365e..80e0969 100755
--- a/docs/dist/smooth-scroll.polyfills.js
+++ b/docs/dist/smooth-scroll.polyfills.js
@@ -1,5 +1,5 @@
 /*!
- * smooth-scroll v14.1.0: Animate scrolling to anchor links
+ * smooth-scroll v14.1.1: Animate scrolling to anchor links
  * (c) 2018 Chris Ferdinandi
  * MIT License
  * http://github.com/cferdinandi/smooth-scroll
@@ -350,6 +350,32 @@ if (window.Element && !Element.prototype.closest) {
 		return !header ? 0 : (getHeight(header) + header.offsetTop);
 	};
 
+	/**
+	 * Update the URL
+	 * @param  {Node}    anchor  The anchor that was scrolled to
+	 * @param  {Boolean} isNum   If true, anchor is a number
+	 * @param  {Object}  options Settings for Smooth Scroll
+	 */
+	var updateURL = function (anchor, isNum, options) {
+
+		// Bail if the anchor is a number
+		if (isNum) return;
+
+		// Verify that pushState is supported and the updateURL option is enabled
+		if (!history.pushState || !options.updateURL) return;
+
+		// Update URL
+		history.pushState(
+			{
+				smoothScroll: JSON.stringify(options),
+				anchor: anchor.id
+			},
+			document.title,
+			anchor === document.documentElement ? '#top' : '#' + anchor.id
+		);
+
+	};
+
 	/**
 	 * Bring the anchored element into focus
 	 * @param {Node}     anchor      The anchor element
@@ -377,32 +403,6 @@ if (window.Element && !Element.prototype.closest) {
 
 	};
 
-	/**
-	 * Update the URL
-	 * @param  {Node}    anchor  The anchor that was scrolled to
-	 * @param  {Boolean} isNum   If true, anchor is a number
-	 * @param  {Object}  options Settings for Smooth Scroll
-	 */
-	var updateURL = function (anchor, isNum, options) {
-
-		// Bail if the anchor is a number
-		if (isNum) return;
-
-		// Verify that pushState is supported and the updateURL option is enabled
-		if (!history.pushState || !options.updateURL) return;
-
-		// Update URL
-		history.pushState(
-			{
-				smoothScroll: JSON.stringify(options),
-				anchor: anchor.id
-			},
-			document.title,
-			anchor === document.documentElement ? '#top' : '#' + anchor.id
-		);
-
-	};
-
 	/**
 	 * Emit a custom event
 	 * @param  {String} type    The event type
@@ -560,6 +560,10 @@ if (window.Element && !Element.prototype.closest) {
 			// Don't run if right-click or command/control + click
 			if (event.button !== 0 || event.metaKey || event.ctrlKey) return;
 
+			// Check if event.target has closest() method
+			// By @totegi - https://github.com/cferdinandi/smooth-scroll/pull/401/
+			if(!('closest' in event.target))return;
+
 			// Check if a smooth scroll link was clicked
 			toggle = event.target.closest(selector);
 			if (!toggle || toggle.tagName.toLowerCase() !== 'a' || event.target.closest(settings.ignore)) return;
@@ -647,7 +651,7 @@ if (window.Element && !Element.prototype.closest) {
 		smoothScroll.init = function (options) {
 
 			// feature test
-			if (!supports()) return;
+			if (!supports()) throw 'Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.';
 
 			// Destroy any existing initializations
 			smoothScroll.destroy();
diff --git a/docs/dist/smooth-scroll.polyfills.min.js b/docs/dist/smooth-scroll.polyfills.min.js
index 699ad81..2f88272 100755
--- a/docs/dist/smooth-scroll.polyfills.min.js
+++ b/docs/dist/smooth-scroll.polyfills.min.js
@@ -1,2 +1,2 @@
-/*! smooth-scroll v14.1.0 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
-window.Element&&!Element.prototype.closest&&(Element.prototype.closest=function(e){var t,n=(this.document||this.ownerDocument).querySelectorAll(e),o=this;do{for(t=n.length;--t>=0&&n.item(t)!==o;);}while(t<0&&(o=o.parentElement));return o}),(function(){function e(e,t){t=t||{bubbles:!1,cancelable:!1,detail:void 0};var n=document.createEvent("CustomEvent");return n.initCustomEvent(e,t.bubbles,t.cancelable,t.detail),n}if("function"==typeof window.CustomEvent)return!1;e.prototype=window.Event.prototype,window.CustomEvent=e})(),(function(){for(var e=0,t=["ms","moz","webkit","o"],n=0;n<t.length&&!window.requestAnimationFrame;++n)window.requestAnimationFrame=window[t[n]+"RequestAnimationFrame"],window.cancelAnimationFrame=window[t[n]+"CancelAnimationFrame"]||window[t[n]+"CancelRequestAnimationFrame"];window.requestAnimationFrame||(window.requestAnimationFrame=function(t,n){var o=(new Date).getTime(),i=Math.max(0,16-(o-e)),a=window.setTimeout((function(){t(o+i)}),i);return e=o+i,a}),window.cancelAnimationFrame||(window.cancelAnimationFrame=function(e){clearTimeout(e)})})(),(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},n=function(){return"querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype},o=function(){for(var e={},t=0;t<arguments.length;t++)!(function(t){for(var n in t)t.hasOwnProperty(n)&&(e[n]=t[n])})(arguments[t]);return e},i=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)},a=function(t){return parseInt(e.getComputedStyle(t).height,10)},r=function(e){var t;try{t=decodeURIComponent(e)}catch(n){t=e}return t},u=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,i=-1,a="",r=n.charCodeAt(0);++i<o;){if(0===(t=n.charCodeAt(i)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===i&&t>=48&&t<=57||1===i&&t>=48&&t<=57&&45===r?a+="\\"+t.toString(16)+" ":a+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(i):"\\"+n.charAt(i)}var u;try{u=decodeURIComponent("#"+a)}catch(e){u="#"+a}return u},c=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(e,t,n){var o=0;if(e.offsetParent)do{o+=e.offsetTop,e=e.offsetParent}while(e);return o=Math.max(o-t-n,0)},m=function(e){return e?a(e)+e.offsetTop:0},d=function(t,n,o){0===t&&document.body.focus(),o||(t.focus(),document.activeElement!==t&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},f=function(e,t,n){t||history.pushState&&n.updateURL&&history.pushState({smoothScroll:JSON.stringify(n),anchor:e.id},document.title,e===document.documentElement?"#top":"#"+e.id)},h=function(t,n,o,i){if(n.emitEvents&&"function"==typeof e.CustomEvent){var a=new CustomEvent(t,{bubbles:!0,detail:{anchor:o,toggle:i}});document.dispatchEvent(a)}};return function(a,p){var g,v,w,y,E,b,S,A={};A.cancelScroll=function(e){cancelAnimationFrame(S),S=null,e||h("scrollCancel",g)},A.animateScroll=function(n,i,a){var r=o(g||t,a||{}),u="[object Number]"===Object.prototype.toString.call(n),p=u||!n.tagName?null:n;if(u||p){var v=e.pageYOffset;r.header&&!y&&(y=document.querySelector(r.header)),E||(E=m(y));var w,b,C,O=u?n:l(p,E,parseInt("function"==typeof r.offset?r.offset(n,i):r.offset,10)),I=O-v,q=s(),F=0,L=function(t,o){var a=e.pageYOffset;if(t==o||a==o||(v<o&&e.innerHeight+a)>=q)return A.cancelScroll(!0),d(n,o,u),h("scrollStop",r,n,i),w=null,S=null,!0},H=function(t){w||(w=t),F+=t-w,b=F/parseInt(r.speed,10),b=b>1?1:b,C=v+I*c(r,b),e.scrollTo(0,Math.floor(C)),L(C,O)||(S=e.requestAnimationFrame(H),w=t)};0===e.pageYOffset&&e.scrollTo(0,0),f(n,u,r),h("scrollStart",r,n,i),A.cancelScroll(!0),e.requestAnimationFrame(H)}};var C=function(t){if(!i()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&(w=t.target.closest(a))&&"a"===w.tagName.toLowerCase()&&!t.target.closest(g.ignore)&&w.hostname===e.location.hostname&&w.pathname===e.location.pathname&&/#/.test(w.href)){var n=u(r(w.hash)),o=g.topOnEmptyHash&&"#"===n?document.documentElement:document.querySelector(n);o=o||"#top"!==n?o:document.documentElement,o&&(t.preventDefault(),A.animateScroll(o,w))}},O=function(e){if(history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(g)&&history.state.anchor){var t=document.querySelector(u(r(history.state.anchor)));t&&A.animateScroll(t,null,{updateURL:!1})}},I=function(e){b||(b=setTimeout((function(){b=null,E=m(y)}),66))};return A.destroy=function(){g&&(document.removeEventListener("click",C,!1),e.removeEventListener("resize",I,!1),e.removeEventListener("popstate",O,!1),A.cancelScroll(),g=null,v=null,w=null,y=null,E=null,b=null,S=null)},A.init=function(i){n()&&(A.destroy(),g=o(t,i||{}),y=g.header?document.querySelector(g.header):null,E=m(y),document.addEventListener("click",C,!1),y&&e.addEventListener("resize",I,!1),g.updateURL&&g.popstate&&e.addEventListener("popstate",O,!1))},A.init(p),A}}));
\ No newline at end of file
+/*! smooth-scroll v14.1.1 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
+window.Element&&!Element.prototype.closest&&(Element.prototype.closest=function(e){var t,n=(this.document||this.ownerDocument).querySelectorAll(e),o=this;do{for(t=n.length;--t>=0&&n.item(t)!==o;);}while(t<0&&(o=o.parentElement));return o}),(function(){function e(e,t){t=t||{bubbles:!1,cancelable:!1,detail:void 0};var n=document.createEvent("CustomEvent");return n.initCustomEvent(e,t.bubbles,t.cancelable,t.detail),n}if("function"==typeof window.CustomEvent)return!1;e.prototype=window.Event.prototype,window.CustomEvent=e})(),(function(){for(var e=0,t=["ms","moz","webkit","o"],n=0;n<t.length&&!window.requestAnimationFrame;++n)window.requestAnimationFrame=window[t[n]+"RequestAnimationFrame"],window.cancelAnimationFrame=window[t[n]+"CancelAnimationFrame"]||window[t[n]+"CancelRequestAnimationFrame"];window.requestAnimationFrame||(window.requestAnimationFrame=function(t,n){var o=(new Date).getTime(),r=Math.max(0,16-(o-e)),i=window.setTimeout((function(){t(o+r)}),r);return e=o+r,i}),window.cancelAnimationFrame||(window.cancelAnimationFrame=function(e){clearTimeout(e)})})(),(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},n=function(){return"querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype},o=function(){for(var e={},t=0;t<arguments.length;t++)!(function(t){for(var n in t)t.hasOwnProperty(n)&&(e[n]=t[n])})(arguments[t]);return e},r=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)},i=function(t){return parseInt(e.getComputedStyle(t).height,10)},a=function(e){var t;try{t=decodeURIComponent(e)}catch(n){t=e}return t},u=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,r=-1,i="",a=n.charCodeAt(0);++r<o;){if(0===(t=n.charCodeAt(r)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===r&&t>=48&&t<=57||1===r&&t>=48&&t<=57&&45===a?i+="\\"+t.toString(16)+" ":i+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(r):"\\"+n.charAt(r)}var u;try{u=decodeURIComponent("#"+i)}catch(e){u="#"+i}return u},c=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(e,t,n){var o=0;if(e.offsetParent)do{o+=e.offsetTop,e=e.offsetParent}while(e);return o=Math.max(o-t-n,0)},m=function(e){return e?i(e)+e.offsetTop:0},d=function(e,t,n){t||history.pushState&&n.updateURL&&history.pushState({smoothScroll:JSON.stringify(n),anchor:e.id},document.title,e===document.documentElement?"#top":"#"+e.id)},f=function(t,n,o){0===t&&document.body.focus(),o||(t.focus(),document.activeElement!==t&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},h=function(t,n,o,r){if(n.emitEvents&&"function"==typeof e.CustomEvent){var i=new CustomEvent(t,{bubbles:!0,detail:{anchor:o,toggle:r}});document.dispatchEvent(i)}};return function(i,p){var g,v,w,y,E,b,S,A={};A.cancelScroll=function(e){cancelAnimationFrame(S),S=null,e||h("scrollCancel",g)},A.animateScroll=function(n,r,i){var a=o(g||t,i||{}),u="[object Number]"===Object.prototype.toString.call(n),p=u||!n.tagName?null:n;if(u||p){var v=e.pageYOffset;a.header&&!y&&(y=document.querySelector(a.header)),E||(E=m(y));var w,b,C,O=u?n:l(p,E,parseInt("function"==typeof a.offset?a.offset(n,r):a.offset,10)),I=O-v,q=s(),F=0,L=function(t,o){var i=e.pageYOffset;if(t==o||i==o||(v<o&&e.innerHeight+i)>=q)return A.cancelScroll(!0),f(n,o,u),h("scrollStop",a,n,r),w=null,S=null,!0},T=function(t){w||(w=t),F+=t-w,b=F/parseInt(a.speed,10),b=b>1?1:b,C=v+I*c(a,b),e.scrollTo(0,Math.floor(C)),L(C,O)||(S=e.requestAnimationFrame(T),w=t)};0===e.pageYOffset&&e.scrollTo(0,0),d(n,u,a),h("scrollStart",a,n,r),A.cancelScroll(!0),e.requestAnimationFrame(T)}};var C=function(t){if(!r()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&"closest"in t.target&&(w=t.target.closest(i))&&"a"===w.tagName.toLowerCase()&&!t.target.closest(g.ignore)&&w.hostname===e.location.hostname&&w.pathname===e.location.pathname&&/#/.test(w.href)){var n=u(a(w.hash)),o=g.topOnEmptyHash&&"#"===n?document.documentElement:document.querySelector(n);o=o||"#top"!==n?o:document.documentElement,o&&(t.preventDefault(),A.animateScroll(o,w))}},O=function(e){if(history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(g)&&history.state.anchor){var t=document.querySelector(u(a(history.state.anchor)));t&&A.animateScroll(t,null,{updateURL:!1})}},I=function(e){b||(b=setTimeout((function(){b=null,E=m(y)}),66))};return A.destroy=function(){g&&(document.removeEventListener("click",C,!1),e.removeEventListener("resize",I,!1),e.removeEventListener("popstate",O,!1),A.cancelScroll(),g=null,v=null,w=null,y=null,E=null,b=null,S=null)},A.init=function(r){if(!n())throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";A.destroy(),g=o(t,r||{}),y=g.header?document.querySelector(g.header):null,E=m(y),document.addEventListener("click",C,!1),y&&e.addEventListener("resize",I,!1),g.updateURL&&g.popstate&&e.addEventListener("popstate",O,!1)},A.init(p),A}}));
\ No newline at end of file
diff --git a/package.json b/package.json
index a513a05..ebbe655 100755
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
 	"name": "smooth-scroll",
-	"version": "14.1.0",
+	"version": "14.1.1",
 	"description": "Animate scrolling to anchor links",
 	"main": "./dist/smooth-scroll.min.js",
 	"author": {
diff --git a/src/js/smooth-scroll.js b/src/js/smooth-scroll.js
index 1041667..f424fe2 100755
--- a/src/js/smooth-scroll.js
+++ b/src/js/smooth-scroll.js
@@ -273,6 +273,32 @@
 		return !header ? 0 : (getHeight(header) + header.offsetTop);
 	};
 
+	/**
+	 * Update the URL
+	 * @param  {Node}    anchor  The anchor that was scrolled to
+	 * @param  {Boolean} isNum   If true, anchor is a number
+	 * @param  {Object}  options Settings for Smooth Scroll
+	 */
+	var updateURL = function (anchor, isNum, options) {
+
+		// Bail if the anchor is a number
+		if (isNum) return;
+
+		// Verify that pushState is supported and the updateURL option is enabled
+		if (!history.pushState || !options.updateURL) return;
+
+		// Update URL
+		history.pushState(
+			{
+				smoothScroll: JSON.stringify(options),
+				anchor: anchor.id
+			},
+			document.title,
+			anchor === document.documentElement ? '#top' : '#' + anchor.id
+		);
+
+	};
+
 	/**
 	 * Bring the anchored element into focus
 	 * @param {Node}     anchor      The anchor element
@@ -300,32 +326,6 @@
 
 	};
 
-	/**
-	 * Update the URL
-	 * @param  {Node}    anchor  The anchor that was scrolled to
-	 * @param  {Boolean} isNum   If true, anchor is a number
-	 * @param  {Object}  options Settings for Smooth Scroll
-	 */
-	var updateURL = function (anchor, isNum, options) {
-
-		// Bail if the anchor is a number
-		if (isNum) return;
-
-		// Verify that pushState is supported and the updateURL option is enabled
-		if (!history.pushState || !options.updateURL) return;
-
-		// Update URL
-		history.pushState(
-			{
-				smoothScroll: JSON.stringify(options),
-				anchor: anchor.id
-			},
-			document.title,
-			anchor === document.documentElement ? '#top' : '#' + anchor.id
-		);
-
-	};
-
 	/**
 	 * Emit a custom event
 	 * @param  {String} type    The event type
@@ -483,6 +483,10 @@
 			// Don't run if right-click or command/control + click
 			if (event.button !== 0 || event.metaKey || event.ctrlKey) return;
 
+			// Check if event.target has closest() method
+			// By @totegi - https://github.com/cferdinandi/smooth-scroll/pull/401/
+			if(!('closest' in event.target))return;
+
 			// Check if a smooth scroll link was clicked
 			toggle = event.target.closest(selector);
 			if (!toggle || toggle.tagName.toLowerCase() !== 'a' || event.target.closest(settings.ignore)) return;
@@ -570,7 +574,7 @@
 		smoothScroll.init = function (options) {
 
 			// feature test
-			if (!supports()) return;
+			if (!supports()) throw 'Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.';
 
 			// Destroy any existing initializations
 			smoothScroll.destroy();

From 85c395c8abd2d283cfa3b398dbb8c5b851ea4fe4 Mon Sep 17 00:00:00 2001
From: cferdinandi <chris@gomakethings.com>
Date: Fri, 18 May 2018 12:13:56 -0400
Subject: [PATCH 13/51] Added clipped scrolling support Adds an option to
 adjust scroll distance to prevent abrupt stops near the bottom of the page

---
 README.md                                |  1 +
 dist/smooth-scroll.js                    | 20 +++++++++++++-------
 dist/smooth-scroll.min.js                |  4 ++--
 dist/smooth-scroll.polyfills.js          | 20 +++++++++++++-------
 dist/smooth-scroll.polyfills.min.js      |  4 ++--
 docs/dist/smooth-scroll.js               | 20 +++++++++++++-------
 docs/dist/smooth-scroll.min.js           |  4 ++--
 docs/dist/smooth-scroll.polyfills.js     | 20 +++++++++++++-------
 docs/dist/smooth-scroll.polyfills.min.js |  4 ++--
 package.json                             |  2 +-
 src/js/smooth-scroll.js                  | 18 ++++++++++++------
 11 files changed, 74 insertions(+), 43 deletions(-)

diff --git a/README.md b/README.md
index 783e19a..9211a28 100755
--- a/README.md
+++ b/README.md
@@ -127,6 +127,7 @@ var scroll = new SmoothScroll('a[href*="#"]', {
 
 	// Speed & Easing
 	speed: 500, // Integer. How fast to complete the scroll in milliseconds
+	clip: true, // If true, adjust scroll distance to prevent abrupt stops near the bottom of the page
 	offset: function (anchor, toggle) {
 
 		// Integer or Function returning an integer. How far to offset the scrolling anchor location in pixels
diff --git a/dist/smooth-scroll.js b/dist/smooth-scroll.js
index 9240325..424dd67 100755
--- a/dist/smooth-scroll.js
+++ b/dist/smooth-scroll.js
@@ -1,5 +1,5 @@
 /*!
- * smooth-scroll v14.1.1: Animate scrolling to anchor links
+ * smooth-scroll v14.2.0: Animate scrolling to anchor links
  * (c) 2018 Chris Ferdinandi
  * MIT License
  * http://github.com/cferdinandi/smooth-scroll
@@ -31,6 +31,7 @@
 
 		// Speed & Easing
 		speed: 500,
+		clip: true,
 		offset: 0,
 		easing: 'easeInOutCubic',
 		customEasing: null,
@@ -254,12 +255,14 @@
 
 	/**
 	 * Calculate how far to scroll
-	 * @param {Element} anchor The anchor element to scroll to
-	 * @param {Number} headerHeight Height of a fixed header, if any
-	 * @param {Number} offset Number of pixels by which to offset scroll
+	 * Clip support added by robjtede - https://github.com/cferdinandi/smooth-scroll/issues/405
+	 * @param {Element} anchor       The anchor element to scroll to
+	 * @param {Number}  headerHeight Height of a fixed header, if any
+	 * @param {Number}  offset       Number of pixels by which to offset scroll
+	 * @param {Boolean} clip         If true, adjust scroll distance to prevent abrupt stops near the bottom of the page
 	 * @returns {Number}
 	 */
-	var getEndLocation = function (anchor, headerHeight, offset) {
+	var getEndLocation = function (anchor, headerHeight, offset, clip) {
 		var location = 0;
 		if (anchor.offsetParent) {
 			do {
@@ -268,7 +271,10 @@
 			} while (anchor);
 		}
 		location = Math.max(location - headerHeight - offset, 0);
-		return location;
+		if (clip) {
+			location = Math.min(location, getDocumentHeight() - window.innerHeight);
+		}
+ 		return location;
 	};
 
 	/**
@@ -405,7 +411,7 @@
 				// Get the height of a fixed header if one exists and not already set
 				headerHeight = getHeaderHeight(fixedHeader);
 			}
-			var endLocation = isNum ? anchor : getEndLocation(anchorElem, headerHeight, parseInt((typeof animateSettings.offset === 'function' ? animateSettings.offset(anchor, toggle) : animateSettings.offset), 10)); // Location to scroll to
+			var endLocation = isNum ? anchor : getEndLocation(anchorElem, headerHeight, parseInt((typeof animateSettings.offset === 'function' ? animateSettings.offset(anchor, toggle) : animateSettings.offset), 10), animateSettings.clip); // Location to scroll to
 			var distance = endLocation - startLocation; // distance to travel
 			var documentHeight = getDocumentHeight();
 			var timeLapsed = 0;
diff --git a/dist/smooth-scroll.min.js b/dist/smooth-scroll.min.js
index 8f25e97..e9a766d 100755
--- a/dist/smooth-scroll.min.js
+++ b/dist/smooth-scroll.min.js
@@ -1,2 +1,2 @@
-/*! smooth-scroll v14.1.1 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
-!(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},n=function(){return"querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype},o=function(){for(var e={},t=0;t<arguments.length;t++)!(function(t){for(var n in t)t.hasOwnProperty(n)&&(e[n]=t[n])})(arguments[t]);return e},r=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)},a=function(t){return parseInt(e.getComputedStyle(t).height,10)},i=function(e){var t;try{t=decodeURIComponent(e)}catch(n){t=e}return t},c=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,r=-1,a="",i=n.charCodeAt(0);++r<o;){if(0===(t=n.charCodeAt(r)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===r&&t>=48&&t<=57||1===r&&t>=48&&t<=57&&45===i?a+="\\"+t.toString(16)+" ":a+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(r):"\\"+n.charAt(r)}var c;try{c=decodeURIComponent("#"+a)}catch(e){c="#"+a}return c},u=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(e,t,n){var o=0;if(e.offsetParent)do{o+=e.offsetTop,e=e.offsetParent}while(e);return o=Math.max(o-t-n,0)},d=function(e){return e?a(e)+e.offsetTop:0},f=function(e,t,n){t||history.pushState&&n.updateURL&&history.pushState({smoothScroll:JSON.stringify(n),anchor:e.id},document.title,e===document.documentElement?"#top":"#"+e.id)},m=function(t,n,o){0===t&&document.body.focus(),o||(t.focus(),document.activeElement!==t&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},h=function(t,n,o,r){if(n.emitEvents&&"function"==typeof e.CustomEvent){var a=new CustomEvent(t,{bubbles:!0,detail:{anchor:o,toggle:r}});document.dispatchEvent(a)}};return function(a,p){var g,v,y,S,E,b,O,I={};I.cancelScroll=function(e){cancelAnimationFrame(O),O=null,e||h("scrollCancel",g)},I.animateScroll=function(n,r,a){var i=o(g||t,a||{}),c="[object Number]"===Object.prototype.toString.call(n),p=c||!n.tagName?null:n;if(c||p){var v=e.pageYOffset;i.header&&!S&&(S=document.querySelector(i.header)),E||(E=d(S));var y,b,C,w=c?n:l(p,E,parseInt("function"==typeof i.offset?i.offset(n,r):i.offset,10)),L=w-v,A=s(),q=0,H=function(t,o){var a=e.pageYOffset;if(t==o||a==o||(v<o&&e.innerHeight+a)>=A)return I.cancelScroll(!0),m(n,o,c),h("scrollStop",i,n,r),y=null,O=null,!0},Q=function(t){y||(y=t),q+=t-y,b=q/parseInt(i.speed,10),b=b>1?1:b,C=v+L*u(i,b),e.scrollTo(0,Math.floor(C)),H(C,w)||(O=e.requestAnimationFrame(Q),y=t)};0===e.pageYOffset&&e.scrollTo(0,0),f(n,c,i),h("scrollStart",i,n,r),I.cancelScroll(!0),e.requestAnimationFrame(Q)}};var C=function(t){if(!r()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&"closest"in t.target&&(y=t.target.closest(a))&&"a"===y.tagName.toLowerCase()&&!t.target.closest(g.ignore)&&y.hostname===e.location.hostname&&y.pathname===e.location.pathname&&/#/.test(y.href)){var n=c(i(y.hash)),o=g.topOnEmptyHash&&"#"===n?document.documentElement:document.querySelector(n);o=o||"#top"!==n?o:document.documentElement,o&&(t.preventDefault(),I.animateScroll(o,y))}},w=function(e){if(history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(g)&&history.state.anchor){var t=document.querySelector(c(i(history.state.anchor)));t&&I.animateScroll(t,null,{updateURL:!1})}},L=function(e){b||(b=setTimeout((function(){b=null,E=d(S)}),66))};return I.destroy=function(){g&&(document.removeEventListener("click",C,!1),e.removeEventListener("resize",L,!1),e.removeEventListener("popstate",w,!1),I.cancelScroll(),g=null,v=null,y=null,S=null,E=null,b=null,O=null)},I.init=function(r){if(!n())throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";I.destroy(),g=o(t,r||{}),S=g.header?document.querySelector(g.header):null,E=d(S),document.addEventListener("click",C,!1),S&&e.addEventListener("resize",L,!1),g.updateURL&&g.popstate&&e.addEventListener("popstate",w,!1)},I.init(p),I}}));
\ No newline at end of file
+/*! smooth-scroll v14.2.0 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
+!(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},n=function(){return"querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype},o=function(){for(var e={},t=0;t<arguments.length;t++)!(function(t){for(var n in t)t.hasOwnProperty(n)&&(e[n]=t[n])})(arguments[t]);return e},r=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)},a=function(t){return parseInt(e.getComputedStyle(t).height,10)},i=function(e){var t;try{t=decodeURIComponent(e)}catch(n){t=e}return t},c=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,r=-1,a="",i=n.charCodeAt(0);++r<o;){if(0===(t=n.charCodeAt(r)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===r&&t>=48&&t<=57||1===r&&t>=48&&t<=57&&45===i?a+="\\"+t.toString(16)+" ":a+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(r):"\\"+n.charAt(r)}var c;try{c=decodeURIComponent("#"+a)}catch(e){c="#"+a}return c},u=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(t,n,o,r){var a=0;if(t.offsetParent)do{a+=t.offsetTop,t=t.offsetParent}while(t);return a=Math.max(a-n-o,0),r&&(a=Math.min(a,s()-e.innerHeight)),a},d=function(e){return e?a(e)+e.offsetTop:0},f=function(e,t,n){t||history.pushState&&n.updateURL&&history.pushState({smoothScroll:JSON.stringify(n),anchor:e.id},document.title,e===document.documentElement?"#top":"#"+e.id)},m=function(t,n,o){0===t&&document.body.focus(),o||(t.focus(),document.activeElement!==t&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},h=function(t,n,o,r){if(n.emitEvents&&"function"==typeof e.CustomEvent){var a=new CustomEvent(t,{bubbles:!0,detail:{anchor:o,toggle:r}});document.dispatchEvent(a)}};return function(a,p){var g,v,y,S,E,b,O,I={};I.cancelScroll=function(e){cancelAnimationFrame(O),O=null,e||h("scrollCancel",g)},I.animateScroll=function(n,r,a){var i=o(g||t,a||{}),c="[object Number]"===Object.prototype.toString.call(n),p=c||!n.tagName?null:n;if(c||p){var v=e.pageYOffset;i.header&&!S&&(S=document.querySelector(i.header)),E||(E=d(S));var y,b,C,w=c?n:l(p,E,parseInt("function"==typeof i.offset?i.offset(n,r):i.offset,10),i.clip),L=w-v,A=s(),H=0,q=function(t,o){var a=e.pageYOffset;if(t==o||a==o||(v<o&&e.innerHeight+a)>=A)return I.cancelScroll(!0),m(n,o,c),h("scrollStop",i,n,r),y=null,O=null,!0},Q=function(t){y||(y=t),H+=t-y,b=H/parseInt(i.speed,10),b=b>1?1:b,C=v+L*u(i,b),e.scrollTo(0,Math.floor(C)),q(C,w)||(O=e.requestAnimationFrame(Q),y=t)};0===e.pageYOffset&&e.scrollTo(0,0),f(n,c,i),h("scrollStart",i,n,r),I.cancelScroll(!0),e.requestAnimationFrame(Q)}};var C=function(t){if(!r()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&"closest"in t.target&&(y=t.target.closest(a))&&"a"===y.tagName.toLowerCase()&&!t.target.closest(g.ignore)&&y.hostname===e.location.hostname&&y.pathname===e.location.pathname&&/#/.test(y.href)){var n=c(i(y.hash)),o=g.topOnEmptyHash&&"#"===n?document.documentElement:document.querySelector(n);o=o||"#top"!==n?o:document.documentElement,o&&(t.preventDefault(),I.animateScroll(o,y))}},w=function(e){if(history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(g)&&history.state.anchor){var t=document.querySelector(c(i(history.state.anchor)));t&&I.animateScroll(t,null,{updateURL:!1})}},L=function(e){b||(b=setTimeout((function(){b=null,E=d(S)}),66))};return I.destroy=function(){g&&(document.removeEventListener("click",C,!1),e.removeEventListener("resize",L,!1),e.removeEventListener("popstate",w,!1),I.cancelScroll(),g=null,v=null,y=null,S=null,E=null,b=null,O=null)},I.init=function(r){if(!n())throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";I.destroy(),g=o(t,r||{}),S=g.header?document.querySelector(g.header):null,E=d(S),document.addEventListener("click",C,!1),S&&e.addEventListener("resize",L,!1),g.updateURL&&g.popstate&&e.addEventListener("popstate",w,!1)},I.init(p),I}}));
\ No newline at end of file
diff --git a/dist/smooth-scroll.polyfills.js b/dist/smooth-scroll.polyfills.js
index 80e0969..5cf7e77 100755
--- a/dist/smooth-scroll.polyfills.js
+++ b/dist/smooth-scroll.polyfills.js
@@ -1,5 +1,5 @@
 /*!
- * smooth-scroll v14.1.1: Animate scrolling to anchor links
+ * smooth-scroll v14.2.0: Animate scrolling to anchor links
  * (c) 2018 Chris Ferdinandi
  * MIT License
  * http://github.com/cferdinandi/smooth-scroll
@@ -101,6 +101,7 @@ if (window.Element && !Element.prototype.closest) {
 
 		// Speed & Easing
 		speed: 500,
+		clip: true,
 		offset: 0,
 		easing: 'easeInOutCubic',
 		customEasing: null,
@@ -324,12 +325,14 @@ if (window.Element && !Element.prototype.closest) {
 
 	/**
 	 * Calculate how far to scroll
-	 * @param {Element} anchor The anchor element to scroll to
-	 * @param {Number} headerHeight Height of a fixed header, if any
-	 * @param {Number} offset Number of pixels by which to offset scroll
+	 * Clip support added by robjtede - https://github.com/cferdinandi/smooth-scroll/issues/405
+	 * @param {Element} anchor       The anchor element to scroll to
+	 * @param {Number}  headerHeight Height of a fixed header, if any
+	 * @param {Number}  offset       Number of pixels by which to offset scroll
+	 * @param {Boolean} clip         If true, adjust scroll distance to prevent abrupt stops near the bottom of the page
 	 * @returns {Number}
 	 */
-	var getEndLocation = function (anchor, headerHeight, offset) {
+	var getEndLocation = function (anchor, headerHeight, offset, clip) {
 		var location = 0;
 		if (anchor.offsetParent) {
 			do {
@@ -338,7 +341,10 @@ if (window.Element && !Element.prototype.closest) {
 			} while (anchor);
 		}
 		location = Math.max(location - headerHeight - offset, 0);
-		return location;
+		if (clip) {
+			location = Math.min(location, getDocumentHeight() - window.innerHeight);
+		}
+ 		return location;
 	};
 
 	/**
@@ -475,7 +481,7 @@ if (window.Element && !Element.prototype.closest) {
 				// Get the height of a fixed header if one exists and not already set
 				headerHeight = getHeaderHeight(fixedHeader);
 			}
-			var endLocation = isNum ? anchor : getEndLocation(anchorElem, headerHeight, parseInt((typeof animateSettings.offset === 'function' ? animateSettings.offset(anchor, toggle) : animateSettings.offset), 10)); // Location to scroll to
+			var endLocation = isNum ? anchor : getEndLocation(anchorElem, headerHeight, parseInt((typeof animateSettings.offset === 'function' ? animateSettings.offset(anchor, toggle) : animateSettings.offset), 10), animateSettings.clip); // Location to scroll to
 			var distance = endLocation - startLocation; // distance to travel
 			var documentHeight = getDocumentHeight();
 			var timeLapsed = 0;
diff --git a/dist/smooth-scroll.polyfills.min.js b/dist/smooth-scroll.polyfills.min.js
index 2f88272..e871ac2 100755
--- a/dist/smooth-scroll.polyfills.min.js
+++ b/dist/smooth-scroll.polyfills.min.js
@@ -1,2 +1,2 @@
-/*! smooth-scroll v14.1.1 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
-window.Element&&!Element.prototype.closest&&(Element.prototype.closest=function(e){var t,n=(this.document||this.ownerDocument).querySelectorAll(e),o=this;do{for(t=n.length;--t>=0&&n.item(t)!==o;);}while(t<0&&(o=o.parentElement));return o}),(function(){function e(e,t){t=t||{bubbles:!1,cancelable:!1,detail:void 0};var n=document.createEvent("CustomEvent");return n.initCustomEvent(e,t.bubbles,t.cancelable,t.detail),n}if("function"==typeof window.CustomEvent)return!1;e.prototype=window.Event.prototype,window.CustomEvent=e})(),(function(){for(var e=0,t=["ms","moz","webkit","o"],n=0;n<t.length&&!window.requestAnimationFrame;++n)window.requestAnimationFrame=window[t[n]+"RequestAnimationFrame"],window.cancelAnimationFrame=window[t[n]+"CancelAnimationFrame"]||window[t[n]+"CancelRequestAnimationFrame"];window.requestAnimationFrame||(window.requestAnimationFrame=function(t,n){var o=(new Date).getTime(),r=Math.max(0,16-(o-e)),i=window.setTimeout((function(){t(o+r)}),r);return e=o+r,i}),window.cancelAnimationFrame||(window.cancelAnimationFrame=function(e){clearTimeout(e)})})(),(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},n=function(){return"querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype},o=function(){for(var e={},t=0;t<arguments.length;t++)!(function(t){for(var n in t)t.hasOwnProperty(n)&&(e[n]=t[n])})(arguments[t]);return e},r=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)},i=function(t){return parseInt(e.getComputedStyle(t).height,10)},a=function(e){var t;try{t=decodeURIComponent(e)}catch(n){t=e}return t},u=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,r=-1,i="",a=n.charCodeAt(0);++r<o;){if(0===(t=n.charCodeAt(r)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===r&&t>=48&&t<=57||1===r&&t>=48&&t<=57&&45===a?i+="\\"+t.toString(16)+" ":i+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(r):"\\"+n.charAt(r)}var u;try{u=decodeURIComponent("#"+i)}catch(e){u="#"+i}return u},c=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(e,t,n){var o=0;if(e.offsetParent)do{o+=e.offsetTop,e=e.offsetParent}while(e);return o=Math.max(o-t-n,0)},m=function(e){return e?i(e)+e.offsetTop:0},d=function(e,t,n){t||history.pushState&&n.updateURL&&history.pushState({smoothScroll:JSON.stringify(n),anchor:e.id},document.title,e===document.documentElement?"#top":"#"+e.id)},f=function(t,n,o){0===t&&document.body.focus(),o||(t.focus(),document.activeElement!==t&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},h=function(t,n,o,r){if(n.emitEvents&&"function"==typeof e.CustomEvent){var i=new CustomEvent(t,{bubbles:!0,detail:{anchor:o,toggle:r}});document.dispatchEvent(i)}};return function(i,p){var g,v,w,y,E,b,S,A={};A.cancelScroll=function(e){cancelAnimationFrame(S),S=null,e||h("scrollCancel",g)},A.animateScroll=function(n,r,i){var a=o(g||t,i||{}),u="[object Number]"===Object.prototype.toString.call(n),p=u||!n.tagName?null:n;if(u||p){var v=e.pageYOffset;a.header&&!y&&(y=document.querySelector(a.header)),E||(E=m(y));var w,b,C,O=u?n:l(p,E,parseInt("function"==typeof a.offset?a.offset(n,r):a.offset,10)),I=O-v,q=s(),F=0,L=function(t,o){var i=e.pageYOffset;if(t==o||i==o||(v<o&&e.innerHeight+i)>=q)return A.cancelScroll(!0),f(n,o,u),h("scrollStop",a,n,r),w=null,S=null,!0},T=function(t){w||(w=t),F+=t-w,b=F/parseInt(a.speed,10),b=b>1?1:b,C=v+I*c(a,b),e.scrollTo(0,Math.floor(C)),L(C,O)||(S=e.requestAnimationFrame(T),w=t)};0===e.pageYOffset&&e.scrollTo(0,0),d(n,u,a),h("scrollStart",a,n,r),A.cancelScroll(!0),e.requestAnimationFrame(T)}};var C=function(t){if(!r()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&"closest"in t.target&&(w=t.target.closest(i))&&"a"===w.tagName.toLowerCase()&&!t.target.closest(g.ignore)&&w.hostname===e.location.hostname&&w.pathname===e.location.pathname&&/#/.test(w.href)){var n=u(a(w.hash)),o=g.topOnEmptyHash&&"#"===n?document.documentElement:document.querySelector(n);o=o||"#top"!==n?o:document.documentElement,o&&(t.preventDefault(),A.animateScroll(o,w))}},O=function(e){if(history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(g)&&history.state.anchor){var t=document.querySelector(u(a(history.state.anchor)));t&&A.animateScroll(t,null,{updateURL:!1})}},I=function(e){b||(b=setTimeout((function(){b=null,E=m(y)}),66))};return A.destroy=function(){g&&(document.removeEventListener("click",C,!1),e.removeEventListener("resize",I,!1),e.removeEventListener("popstate",O,!1),A.cancelScroll(),g=null,v=null,w=null,y=null,E=null,b=null,S=null)},A.init=function(r){if(!n())throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";A.destroy(),g=o(t,r||{}),y=g.header?document.querySelector(g.header):null,E=m(y),document.addEventListener("click",C,!1),y&&e.addEventListener("resize",I,!1),g.updateURL&&g.popstate&&e.addEventListener("popstate",O,!1)},A.init(p),A}}));
\ No newline at end of file
+/*! smooth-scroll v14.2.0 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
+window.Element&&!Element.prototype.closest&&(Element.prototype.closest=function(e){var t,n=(this.document||this.ownerDocument).querySelectorAll(e),o=this;do{for(t=n.length;--t>=0&&n.item(t)!==o;);}while(t<0&&(o=o.parentElement));return o}),(function(){function e(e,t){t=t||{bubbles:!1,cancelable:!1,detail:void 0};var n=document.createEvent("CustomEvent");return n.initCustomEvent(e,t.bubbles,t.cancelable,t.detail),n}if("function"==typeof window.CustomEvent)return!1;e.prototype=window.Event.prototype,window.CustomEvent=e})(),(function(){for(var e=0,t=["ms","moz","webkit","o"],n=0;n<t.length&&!window.requestAnimationFrame;++n)window.requestAnimationFrame=window[t[n]+"RequestAnimationFrame"],window.cancelAnimationFrame=window[t[n]+"CancelAnimationFrame"]||window[t[n]+"CancelRequestAnimationFrame"];window.requestAnimationFrame||(window.requestAnimationFrame=function(t,n){var o=(new Date).getTime(),i=Math.max(0,16-(o-e)),r=window.setTimeout((function(){t(o+i)}),i);return e=o+i,r}),window.cancelAnimationFrame||(window.cancelAnimationFrame=function(e){clearTimeout(e)})})(),(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},n=function(){return"querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype},o=function(){for(var e={},t=0;t<arguments.length;t++)!(function(t){for(var n in t)t.hasOwnProperty(n)&&(e[n]=t[n])})(arguments[t]);return e},i=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)},r=function(t){return parseInt(e.getComputedStyle(t).height,10)},a=function(e){var t;try{t=decodeURIComponent(e)}catch(n){t=e}return t},c=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,i=-1,r="",a=n.charCodeAt(0);++i<o;){if(0===(t=n.charCodeAt(i)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===i&&t>=48&&t<=57||1===i&&t>=48&&t<=57&&45===a?r+="\\"+t.toString(16)+" ":r+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(i):"\\"+n.charAt(i)}var c;try{c=decodeURIComponent("#"+r)}catch(e){c="#"+r}return c},u=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(t,n,o,i){var r=0;if(t.offsetParent)do{r+=t.offsetTop,t=t.offsetParent}while(t);return r=Math.max(r-n-o,0),i&&(r=Math.min(r,s()-e.innerHeight)),r},m=function(e){return e?r(e)+e.offsetTop:0},d=function(e,t,n){t||history.pushState&&n.updateURL&&history.pushState({smoothScroll:JSON.stringify(n),anchor:e.id},document.title,e===document.documentElement?"#top":"#"+e.id)},f=function(t,n,o){0===t&&document.body.focus(),o||(t.focus(),document.activeElement!==t&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},h=function(t,n,o,i){if(n.emitEvents&&"function"==typeof e.CustomEvent){var r=new CustomEvent(t,{bubbles:!0,detail:{anchor:o,toggle:i}});document.dispatchEvent(r)}};return function(r,p){var g,v,w,y,E,b,S,A={};A.cancelScroll=function(e){cancelAnimationFrame(S),S=null,e||h("scrollCancel",g)},A.animateScroll=function(n,i,r){var a=o(g||t,r||{}),c="[object Number]"===Object.prototype.toString.call(n),p=c||!n.tagName?null:n;if(c||p){var v=e.pageYOffset;a.header&&!y&&(y=document.querySelector(a.header)),E||(E=m(y));var w,b,C,O=c?n:l(p,E,parseInt("function"==typeof a.offset?a.offset(n,i):a.offset,10),a.clip),I=O-v,q=s(),F=0,L=function(t,o){var r=e.pageYOffset;if(t==o||r==o||(v<o&&e.innerHeight+r)>=q)return A.cancelScroll(!0),f(n,o,c),h("scrollStop",a,n,i),w=null,S=null,!0},H=function(t){w||(w=t),F+=t-w,b=F/parseInt(a.speed,10),b=b>1?1:b,C=v+I*u(a,b),e.scrollTo(0,Math.floor(C)),L(C,O)||(S=e.requestAnimationFrame(H),w=t)};0===e.pageYOffset&&e.scrollTo(0,0),d(n,c,a),h("scrollStart",a,n,i),A.cancelScroll(!0),e.requestAnimationFrame(H)}};var C=function(t){if(!i()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&"closest"in t.target&&(w=t.target.closest(r))&&"a"===w.tagName.toLowerCase()&&!t.target.closest(g.ignore)&&w.hostname===e.location.hostname&&w.pathname===e.location.pathname&&/#/.test(w.href)){var n=c(a(w.hash)),o=g.topOnEmptyHash&&"#"===n?document.documentElement:document.querySelector(n);o=o||"#top"!==n?o:document.documentElement,o&&(t.preventDefault(),A.animateScroll(o,w))}},O=function(e){if(history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(g)&&history.state.anchor){var t=document.querySelector(c(a(history.state.anchor)));t&&A.animateScroll(t,null,{updateURL:!1})}},I=function(e){b||(b=setTimeout((function(){b=null,E=m(y)}),66))};return A.destroy=function(){g&&(document.removeEventListener("click",C,!1),e.removeEventListener("resize",I,!1),e.removeEventListener("popstate",O,!1),A.cancelScroll(),g=null,v=null,w=null,y=null,E=null,b=null,S=null)},A.init=function(i){if(!n())throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";A.destroy(),g=o(t,i||{}),y=g.header?document.querySelector(g.header):null,E=m(y),document.addEventListener("click",C,!1),y&&e.addEventListener("resize",I,!1),g.updateURL&&g.popstate&&e.addEventListener("popstate",O,!1)},A.init(p),A}}));
\ No newline at end of file
diff --git a/docs/dist/smooth-scroll.js b/docs/dist/smooth-scroll.js
index 9240325..424dd67 100755
--- a/docs/dist/smooth-scroll.js
+++ b/docs/dist/smooth-scroll.js
@@ -1,5 +1,5 @@
 /*!
- * smooth-scroll v14.1.1: Animate scrolling to anchor links
+ * smooth-scroll v14.2.0: Animate scrolling to anchor links
  * (c) 2018 Chris Ferdinandi
  * MIT License
  * http://github.com/cferdinandi/smooth-scroll
@@ -31,6 +31,7 @@
 
 		// Speed & Easing
 		speed: 500,
+		clip: true,
 		offset: 0,
 		easing: 'easeInOutCubic',
 		customEasing: null,
@@ -254,12 +255,14 @@
 
 	/**
 	 * Calculate how far to scroll
-	 * @param {Element} anchor The anchor element to scroll to
-	 * @param {Number} headerHeight Height of a fixed header, if any
-	 * @param {Number} offset Number of pixels by which to offset scroll
+	 * Clip support added by robjtede - https://github.com/cferdinandi/smooth-scroll/issues/405
+	 * @param {Element} anchor       The anchor element to scroll to
+	 * @param {Number}  headerHeight Height of a fixed header, if any
+	 * @param {Number}  offset       Number of pixels by which to offset scroll
+	 * @param {Boolean} clip         If true, adjust scroll distance to prevent abrupt stops near the bottom of the page
 	 * @returns {Number}
 	 */
-	var getEndLocation = function (anchor, headerHeight, offset) {
+	var getEndLocation = function (anchor, headerHeight, offset, clip) {
 		var location = 0;
 		if (anchor.offsetParent) {
 			do {
@@ -268,7 +271,10 @@
 			} while (anchor);
 		}
 		location = Math.max(location - headerHeight - offset, 0);
-		return location;
+		if (clip) {
+			location = Math.min(location, getDocumentHeight() - window.innerHeight);
+		}
+ 		return location;
 	};
 
 	/**
@@ -405,7 +411,7 @@
 				// Get the height of a fixed header if one exists and not already set
 				headerHeight = getHeaderHeight(fixedHeader);
 			}
-			var endLocation = isNum ? anchor : getEndLocation(anchorElem, headerHeight, parseInt((typeof animateSettings.offset === 'function' ? animateSettings.offset(anchor, toggle) : animateSettings.offset), 10)); // Location to scroll to
+			var endLocation = isNum ? anchor : getEndLocation(anchorElem, headerHeight, parseInt((typeof animateSettings.offset === 'function' ? animateSettings.offset(anchor, toggle) : animateSettings.offset), 10), animateSettings.clip); // Location to scroll to
 			var distance = endLocation - startLocation; // distance to travel
 			var documentHeight = getDocumentHeight();
 			var timeLapsed = 0;
diff --git a/docs/dist/smooth-scroll.min.js b/docs/dist/smooth-scroll.min.js
index 8f25e97..e9a766d 100755
--- a/docs/dist/smooth-scroll.min.js
+++ b/docs/dist/smooth-scroll.min.js
@@ -1,2 +1,2 @@
-/*! smooth-scroll v14.1.1 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
-!(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},n=function(){return"querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype},o=function(){for(var e={},t=0;t<arguments.length;t++)!(function(t){for(var n in t)t.hasOwnProperty(n)&&(e[n]=t[n])})(arguments[t]);return e},r=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)},a=function(t){return parseInt(e.getComputedStyle(t).height,10)},i=function(e){var t;try{t=decodeURIComponent(e)}catch(n){t=e}return t},c=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,r=-1,a="",i=n.charCodeAt(0);++r<o;){if(0===(t=n.charCodeAt(r)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===r&&t>=48&&t<=57||1===r&&t>=48&&t<=57&&45===i?a+="\\"+t.toString(16)+" ":a+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(r):"\\"+n.charAt(r)}var c;try{c=decodeURIComponent("#"+a)}catch(e){c="#"+a}return c},u=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(e,t,n){var o=0;if(e.offsetParent)do{o+=e.offsetTop,e=e.offsetParent}while(e);return o=Math.max(o-t-n,0)},d=function(e){return e?a(e)+e.offsetTop:0},f=function(e,t,n){t||history.pushState&&n.updateURL&&history.pushState({smoothScroll:JSON.stringify(n),anchor:e.id},document.title,e===document.documentElement?"#top":"#"+e.id)},m=function(t,n,o){0===t&&document.body.focus(),o||(t.focus(),document.activeElement!==t&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},h=function(t,n,o,r){if(n.emitEvents&&"function"==typeof e.CustomEvent){var a=new CustomEvent(t,{bubbles:!0,detail:{anchor:o,toggle:r}});document.dispatchEvent(a)}};return function(a,p){var g,v,y,S,E,b,O,I={};I.cancelScroll=function(e){cancelAnimationFrame(O),O=null,e||h("scrollCancel",g)},I.animateScroll=function(n,r,a){var i=o(g||t,a||{}),c="[object Number]"===Object.prototype.toString.call(n),p=c||!n.tagName?null:n;if(c||p){var v=e.pageYOffset;i.header&&!S&&(S=document.querySelector(i.header)),E||(E=d(S));var y,b,C,w=c?n:l(p,E,parseInt("function"==typeof i.offset?i.offset(n,r):i.offset,10)),L=w-v,A=s(),q=0,H=function(t,o){var a=e.pageYOffset;if(t==o||a==o||(v<o&&e.innerHeight+a)>=A)return I.cancelScroll(!0),m(n,o,c),h("scrollStop",i,n,r),y=null,O=null,!0},Q=function(t){y||(y=t),q+=t-y,b=q/parseInt(i.speed,10),b=b>1?1:b,C=v+L*u(i,b),e.scrollTo(0,Math.floor(C)),H(C,w)||(O=e.requestAnimationFrame(Q),y=t)};0===e.pageYOffset&&e.scrollTo(0,0),f(n,c,i),h("scrollStart",i,n,r),I.cancelScroll(!0),e.requestAnimationFrame(Q)}};var C=function(t){if(!r()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&"closest"in t.target&&(y=t.target.closest(a))&&"a"===y.tagName.toLowerCase()&&!t.target.closest(g.ignore)&&y.hostname===e.location.hostname&&y.pathname===e.location.pathname&&/#/.test(y.href)){var n=c(i(y.hash)),o=g.topOnEmptyHash&&"#"===n?document.documentElement:document.querySelector(n);o=o||"#top"!==n?o:document.documentElement,o&&(t.preventDefault(),I.animateScroll(o,y))}},w=function(e){if(history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(g)&&history.state.anchor){var t=document.querySelector(c(i(history.state.anchor)));t&&I.animateScroll(t,null,{updateURL:!1})}},L=function(e){b||(b=setTimeout((function(){b=null,E=d(S)}),66))};return I.destroy=function(){g&&(document.removeEventListener("click",C,!1),e.removeEventListener("resize",L,!1),e.removeEventListener("popstate",w,!1),I.cancelScroll(),g=null,v=null,y=null,S=null,E=null,b=null,O=null)},I.init=function(r){if(!n())throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";I.destroy(),g=o(t,r||{}),S=g.header?document.querySelector(g.header):null,E=d(S),document.addEventListener("click",C,!1),S&&e.addEventListener("resize",L,!1),g.updateURL&&g.popstate&&e.addEventListener("popstate",w,!1)},I.init(p),I}}));
\ No newline at end of file
+/*! smooth-scroll v14.2.0 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
+!(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},n=function(){return"querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype},o=function(){for(var e={},t=0;t<arguments.length;t++)!(function(t){for(var n in t)t.hasOwnProperty(n)&&(e[n]=t[n])})(arguments[t]);return e},r=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)},a=function(t){return parseInt(e.getComputedStyle(t).height,10)},i=function(e){var t;try{t=decodeURIComponent(e)}catch(n){t=e}return t},c=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,r=-1,a="",i=n.charCodeAt(0);++r<o;){if(0===(t=n.charCodeAt(r)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===r&&t>=48&&t<=57||1===r&&t>=48&&t<=57&&45===i?a+="\\"+t.toString(16)+" ":a+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(r):"\\"+n.charAt(r)}var c;try{c=decodeURIComponent("#"+a)}catch(e){c="#"+a}return c},u=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(t,n,o,r){var a=0;if(t.offsetParent)do{a+=t.offsetTop,t=t.offsetParent}while(t);return a=Math.max(a-n-o,0),r&&(a=Math.min(a,s()-e.innerHeight)),a},d=function(e){return e?a(e)+e.offsetTop:0},f=function(e,t,n){t||history.pushState&&n.updateURL&&history.pushState({smoothScroll:JSON.stringify(n),anchor:e.id},document.title,e===document.documentElement?"#top":"#"+e.id)},m=function(t,n,o){0===t&&document.body.focus(),o||(t.focus(),document.activeElement!==t&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},h=function(t,n,o,r){if(n.emitEvents&&"function"==typeof e.CustomEvent){var a=new CustomEvent(t,{bubbles:!0,detail:{anchor:o,toggle:r}});document.dispatchEvent(a)}};return function(a,p){var g,v,y,S,E,b,O,I={};I.cancelScroll=function(e){cancelAnimationFrame(O),O=null,e||h("scrollCancel",g)},I.animateScroll=function(n,r,a){var i=o(g||t,a||{}),c="[object Number]"===Object.prototype.toString.call(n),p=c||!n.tagName?null:n;if(c||p){var v=e.pageYOffset;i.header&&!S&&(S=document.querySelector(i.header)),E||(E=d(S));var y,b,C,w=c?n:l(p,E,parseInt("function"==typeof i.offset?i.offset(n,r):i.offset,10),i.clip),L=w-v,A=s(),H=0,q=function(t,o){var a=e.pageYOffset;if(t==o||a==o||(v<o&&e.innerHeight+a)>=A)return I.cancelScroll(!0),m(n,o,c),h("scrollStop",i,n,r),y=null,O=null,!0},Q=function(t){y||(y=t),H+=t-y,b=H/parseInt(i.speed,10),b=b>1?1:b,C=v+L*u(i,b),e.scrollTo(0,Math.floor(C)),q(C,w)||(O=e.requestAnimationFrame(Q),y=t)};0===e.pageYOffset&&e.scrollTo(0,0),f(n,c,i),h("scrollStart",i,n,r),I.cancelScroll(!0),e.requestAnimationFrame(Q)}};var C=function(t){if(!r()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&"closest"in t.target&&(y=t.target.closest(a))&&"a"===y.tagName.toLowerCase()&&!t.target.closest(g.ignore)&&y.hostname===e.location.hostname&&y.pathname===e.location.pathname&&/#/.test(y.href)){var n=c(i(y.hash)),o=g.topOnEmptyHash&&"#"===n?document.documentElement:document.querySelector(n);o=o||"#top"!==n?o:document.documentElement,o&&(t.preventDefault(),I.animateScroll(o,y))}},w=function(e){if(history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(g)&&history.state.anchor){var t=document.querySelector(c(i(history.state.anchor)));t&&I.animateScroll(t,null,{updateURL:!1})}},L=function(e){b||(b=setTimeout((function(){b=null,E=d(S)}),66))};return I.destroy=function(){g&&(document.removeEventListener("click",C,!1),e.removeEventListener("resize",L,!1),e.removeEventListener("popstate",w,!1),I.cancelScroll(),g=null,v=null,y=null,S=null,E=null,b=null,O=null)},I.init=function(r){if(!n())throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";I.destroy(),g=o(t,r||{}),S=g.header?document.querySelector(g.header):null,E=d(S),document.addEventListener("click",C,!1),S&&e.addEventListener("resize",L,!1),g.updateURL&&g.popstate&&e.addEventListener("popstate",w,!1)},I.init(p),I}}));
\ No newline at end of file
diff --git a/docs/dist/smooth-scroll.polyfills.js b/docs/dist/smooth-scroll.polyfills.js
index 80e0969..5cf7e77 100755
--- a/docs/dist/smooth-scroll.polyfills.js
+++ b/docs/dist/smooth-scroll.polyfills.js
@@ -1,5 +1,5 @@
 /*!
- * smooth-scroll v14.1.1: Animate scrolling to anchor links
+ * smooth-scroll v14.2.0: Animate scrolling to anchor links
  * (c) 2018 Chris Ferdinandi
  * MIT License
  * http://github.com/cferdinandi/smooth-scroll
@@ -101,6 +101,7 @@ if (window.Element && !Element.prototype.closest) {
 
 		// Speed & Easing
 		speed: 500,
+		clip: true,
 		offset: 0,
 		easing: 'easeInOutCubic',
 		customEasing: null,
@@ -324,12 +325,14 @@ if (window.Element && !Element.prototype.closest) {
 
 	/**
 	 * Calculate how far to scroll
-	 * @param {Element} anchor The anchor element to scroll to
-	 * @param {Number} headerHeight Height of a fixed header, if any
-	 * @param {Number} offset Number of pixels by which to offset scroll
+	 * Clip support added by robjtede - https://github.com/cferdinandi/smooth-scroll/issues/405
+	 * @param {Element} anchor       The anchor element to scroll to
+	 * @param {Number}  headerHeight Height of a fixed header, if any
+	 * @param {Number}  offset       Number of pixels by which to offset scroll
+	 * @param {Boolean} clip         If true, adjust scroll distance to prevent abrupt stops near the bottom of the page
 	 * @returns {Number}
 	 */
-	var getEndLocation = function (anchor, headerHeight, offset) {
+	var getEndLocation = function (anchor, headerHeight, offset, clip) {
 		var location = 0;
 		if (anchor.offsetParent) {
 			do {
@@ -338,7 +341,10 @@ if (window.Element && !Element.prototype.closest) {
 			} while (anchor);
 		}
 		location = Math.max(location - headerHeight - offset, 0);
-		return location;
+		if (clip) {
+			location = Math.min(location, getDocumentHeight() - window.innerHeight);
+		}
+ 		return location;
 	};
 
 	/**
@@ -475,7 +481,7 @@ if (window.Element && !Element.prototype.closest) {
 				// Get the height of a fixed header if one exists and not already set
 				headerHeight = getHeaderHeight(fixedHeader);
 			}
-			var endLocation = isNum ? anchor : getEndLocation(anchorElem, headerHeight, parseInt((typeof animateSettings.offset === 'function' ? animateSettings.offset(anchor, toggle) : animateSettings.offset), 10)); // Location to scroll to
+			var endLocation = isNum ? anchor : getEndLocation(anchorElem, headerHeight, parseInt((typeof animateSettings.offset === 'function' ? animateSettings.offset(anchor, toggle) : animateSettings.offset), 10), animateSettings.clip); // Location to scroll to
 			var distance = endLocation - startLocation; // distance to travel
 			var documentHeight = getDocumentHeight();
 			var timeLapsed = 0;
diff --git a/docs/dist/smooth-scroll.polyfills.min.js b/docs/dist/smooth-scroll.polyfills.min.js
index 2f88272..e871ac2 100755
--- a/docs/dist/smooth-scroll.polyfills.min.js
+++ b/docs/dist/smooth-scroll.polyfills.min.js
@@ -1,2 +1,2 @@
-/*! smooth-scroll v14.1.1 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
-window.Element&&!Element.prototype.closest&&(Element.prototype.closest=function(e){var t,n=(this.document||this.ownerDocument).querySelectorAll(e),o=this;do{for(t=n.length;--t>=0&&n.item(t)!==o;);}while(t<0&&(o=o.parentElement));return o}),(function(){function e(e,t){t=t||{bubbles:!1,cancelable:!1,detail:void 0};var n=document.createEvent("CustomEvent");return n.initCustomEvent(e,t.bubbles,t.cancelable,t.detail),n}if("function"==typeof window.CustomEvent)return!1;e.prototype=window.Event.prototype,window.CustomEvent=e})(),(function(){for(var e=0,t=["ms","moz","webkit","o"],n=0;n<t.length&&!window.requestAnimationFrame;++n)window.requestAnimationFrame=window[t[n]+"RequestAnimationFrame"],window.cancelAnimationFrame=window[t[n]+"CancelAnimationFrame"]||window[t[n]+"CancelRequestAnimationFrame"];window.requestAnimationFrame||(window.requestAnimationFrame=function(t,n){var o=(new Date).getTime(),r=Math.max(0,16-(o-e)),i=window.setTimeout((function(){t(o+r)}),r);return e=o+r,i}),window.cancelAnimationFrame||(window.cancelAnimationFrame=function(e){clearTimeout(e)})})(),(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},n=function(){return"querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype},o=function(){for(var e={},t=0;t<arguments.length;t++)!(function(t){for(var n in t)t.hasOwnProperty(n)&&(e[n]=t[n])})(arguments[t]);return e},r=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)},i=function(t){return parseInt(e.getComputedStyle(t).height,10)},a=function(e){var t;try{t=decodeURIComponent(e)}catch(n){t=e}return t},u=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,r=-1,i="",a=n.charCodeAt(0);++r<o;){if(0===(t=n.charCodeAt(r)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===r&&t>=48&&t<=57||1===r&&t>=48&&t<=57&&45===a?i+="\\"+t.toString(16)+" ":i+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(r):"\\"+n.charAt(r)}var u;try{u=decodeURIComponent("#"+i)}catch(e){u="#"+i}return u},c=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(e,t,n){var o=0;if(e.offsetParent)do{o+=e.offsetTop,e=e.offsetParent}while(e);return o=Math.max(o-t-n,0)},m=function(e){return e?i(e)+e.offsetTop:0},d=function(e,t,n){t||history.pushState&&n.updateURL&&history.pushState({smoothScroll:JSON.stringify(n),anchor:e.id},document.title,e===document.documentElement?"#top":"#"+e.id)},f=function(t,n,o){0===t&&document.body.focus(),o||(t.focus(),document.activeElement!==t&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},h=function(t,n,o,r){if(n.emitEvents&&"function"==typeof e.CustomEvent){var i=new CustomEvent(t,{bubbles:!0,detail:{anchor:o,toggle:r}});document.dispatchEvent(i)}};return function(i,p){var g,v,w,y,E,b,S,A={};A.cancelScroll=function(e){cancelAnimationFrame(S),S=null,e||h("scrollCancel",g)},A.animateScroll=function(n,r,i){var a=o(g||t,i||{}),u="[object Number]"===Object.prototype.toString.call(n),p=u||!n.tagName?null:n;if(u||p){var v=e.pageYOffset;a.header&&!y&&(y=document.querySelector(a.header)),E||(E=m(y));var w,b,C,O=u?n:l(p,E,parseInt("function"==typeof a.offset?a.offset(n,r):a.offset,10)),I=O-v,q=s(),F=0,L=function(t,o){var i=e.pageYOffset;if(t==o||i==o||(v<o&&e.innerHeight+i)>=q)return A.cancelScroll(!0),f(n,o,u),h("scrollStop",a,n,r),w=null,S=null,!0},T=function(t){w||(w=t),F+=t-w,b=F/parseInt(a.speed,10),b=b>1?1:b,C=v+I*c(a,b),e.scrollTo(0,Math.floor(C)),L(C,O)||(S=e.requestAnimationFrame(T),w=t)};0===e.pageYOffset&&e.scrollTo(0,0),d(n,u,a),h("scrollStart",a,n,r),A.cancelScroll(!0),e.requestAnimationFrame(T)}};var C=function(t){if(!r()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&"closest"in t.target&&(w=t.target.closest(i))&&"a"===w.tagName.toLowerCase()&&!t.target.closest(g.ignore)&&w.hostname===e.location.hostname&&w.pathname===e.location.pathname&&/#/.test(w.href)){var n=u(a(w.hash)),o=g.topOnEmptyHash&&"#"===n?document.documentElement:document.querySelector(n);o=o||"#top"!==n?o:document.documentElement,o&&(t.preventDefault(),A.animateScroll(o,w))}},O=function(e){if(history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(g)&&history.state.anchor){var t=document.querySelector(u(a(history.state.anchor)));t&&A.animateScroll(t,null,{updateURL:!1})}},I=function(e){b||(b=setTimeout((function(){b=null,E=m(y)}),66))};return A.destroy=function(){g&&(document.removeEventListener("click",C,!1),e.removeEventListener("resize",I,!1),e.removeEventListener("popstate",O,!1),A.cancelScroll(),g=null,v=null,w=null,y=null,E=null,b=null,S=null)},A.init=function(r){if(!n())throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";A.destroy(),g=o(t,r||{}),y=g.header?document.querySelector(g.header):null,E=m(y),document.addEventListener("click",C,!1),y&&e.addEventListener("resize",I,!1),g.updateURL&&g.popstate&&e.addEventListener("popstate",O,!1)},A.init(p),A}}));
\ No newline at end of file
+/*! smooth-scroll v14.2.0 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
+window.Element&&!Element.prototype.closest&&(Element.prototype.closest=function(e){var t,n=(this.document||this.ownerDocument).querySelectorAll(e),o=this;do{for(t=n.length;--t>=0&&n.item(t)!==o;);}while(t<0&&(o=o.parentElement));return o}),(function(){function e(e,t){t=t||{bubbles:!1,cancelable:!1,detail:void 0};var n=document.createEvent("CustomEvent");return n.initCustomEvent(e,t.bubbles,t.cancelable,t.detail),n}if("function"==typeof window.CustomEvent)return!1;e.prototype=window.Event.prototype,window.CustomEvent=e})(),(function(){for(var e=0,t=["ms","moz","webkit","o"],n=0;n<t.length&&!window.requestAnimationFrame;++n)window.requestAnimationFrame=window[t[n]+"RequestAnimationFrame"],window.cancelAnimationFrame=window[t[n]+"CancelAnimationFrame"]||window[t[n]+"CancelRequestAnimationFrame"];window.requestAnimationFrame||(window.requestAnimationFrame=function(t,n){var o=(new Date).getTime(),i=Math.max(0,16-(o-e)),r=window.setTimeout((function(){t(o+i)}),i);return e=o+i,r}),window.cancelAnimationFrame||(window.cancelAnimationFrame=function(e){clearTimeout(e)})})(),(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},n=function(){return"querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype},o=function(){for(var e={},t=0;t<arguments.length;t++)!(function(t){for(var n in t)t.hasOwnProperty(n)&&(e[n]=t[n])})(arguments[t]);return e},i=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)},r=function(t){return parseInt(e.getComputedStyle(t).height,10)},a=function(e){var t;try{t=decodeURIComponent(e)}catch(n){t=e}return t},c=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,i=-1,r="",a=n.charCodeAt(0);++i<o;){if(0===(t=n.charCodeAt(i)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===i&&t>=48&&t<=57||1===i&&t>=48&&t<=57&&45===a?r+="\\"+t.toString(16)+" ":r+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(i):"\\"+n.charAt(i)}var c;try{c=decodeURIComponent("#"+r)}catch(e){c="#"+r}return c},u=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(t,n,o,i){var r=0;if(t.offsetParent)do{r+=t.offsetTop,t=t.offsetParent}while(t);return r=Math.max(r-n-o,0),i&&(r=Math.min(r,s()-e.innerHeight)),r},m=function(e){return e?r(e)+e.offsetTop:0},d=function(e,t,n){t||history.pushState&&n.updateURL&&history.pushState({smoothScroll:JSON.stringify(n),anchor:e.id},document.title,e===document.documentElement?"#top":"#"+e.id)},f=function(t,n,o){0===t&&document.body.focus(),o||(t.focus(),document.activeElement!==t&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},h=function(t,n,o,i){if(n.emitEvents&&"function"==typeof e.CustomEvent){var r=new CustomEvent(t,{bubbles:!0,detail:{anchor:o,toggle:i}});document.dispatchEvent(r)}};return function(r,p){var g,v,w,y,E,b,S,A={};A.cancelScroll=function(e){cancelAnimationFrame(S),S=null,e||h("scrollCancel",g)},A.animateScroll=function(n,i,r){var a=o(g||t,r||{}),c="[object Number]"===Object.prototype.toString.call(n),p=c||!n.tagName?null:n;if(c||p){var v=e.pageYOffset;a.header&&!y&&(y=document.querySelector(a.header)),E||(E=m(y));var w,b,C,O=c?n:l(p,E,parseInt("function"==typeof a.offset?a.offset(n,i):a.offset,10),a.clip),I=O-v,q=s(),F=0,L=function(t,o){var r=e.pageYOffset;if(t==o||r==o||(v<o&&e.innerHeight+r)>=q)return A.cancelScroll(!0),f(n,o,c),h("scrollStop",a,n,i),w=null,S=null,!0},H=function(t){w||(w=t),F+=t-w,b=F/parseInt(a.speed,10),b=b>1?1:b,C=v+I*u(a,b),e.scrollTo(0,Math.floor(C)),L(C,O)||(S=e.requestAnimationFrame(H),w=t)};0===e.pageYOffset&&e.scrollTo(0,0),d(n,c,a),h("scrollStart",a,n,i),A.cancelScroll(!0),e.requestAnimationFrame(H)}};var C=function(t){if(!i()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&"closest"in t.target&&(w=t.target.closest(r))&&"a"===w.tagName.toLowerCase()&&!t.target.closest(g.ignore)&&w.hostname===e.location.hostname&&w.pathname===e.location.pathname&&/#/.test(w.href)){var n=c(a(w.hash)),o=g.topOnEmptyHash&&"#"===n?document.documentElement:document.querySelector(n);o=o||"#top"!==n?o:document.documentElement,o&&(t.preventDefault(),A.animateScroll(o,w))}},O=function(e){if(history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(g)&&history.state.anchor){var t=document.querySelector(c(a(history.state.anchor)));t&&A.animateScroll(t,null,{updateURL:!1})}},I=function(e){b||(b=setTimeout((function(){b=null,E=m(y)}),66))};return A.destroy=function(){g&&(document.removeEventListener("click",C,!1),e.removeEventListener("resize",I,!1),e.removeEventListener("popstate",O,!1),A.cancelScroll(),g=null,v=null,w=null,y=null,E=null,b=null,S=null)},A.init=function(i){if(!n())throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";A.destroy(),g=o(t,i||{}),y=g.header?document.querySelector(g.header):null,E=m(y),document.addEventListener("click",C,!1),y&&e.addEventListener("resize",I,!1),g.updateURL&&g.popstate&&e.addEventListener("popstate",O,!1)},A.init(p),A}}));
\ No newline at end of file
diff --git a/package.json b/package.json
index ebbe655..ea2ef2d 100755
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
 	"name": "smooth-scroll",
-	"version": "14.1.1",
+	"version": "14.2.0",
 	"description": "Animate scrolling to anchor links",
 	"main": "./dist/smooth-scroll.min.js",
 	"author": {
diff --git a/src/js/smooth-scroll.js b/src/js/smooth-scroll.js
index f424fe2..dd61943 100755
--- a/src/js/smooth-scroll.js
+++ b/src/js/smooth-scroll.js
@@ -24,6 +24,7 @@
 
 		// Speed & Easing
 		speed: 500,
+		clip: true,
 		offset: 0,
 		easing: 'easeInOutCubic',
 		customEasing: null,
@@ -247,12 +248,14 @@
 
 	/**
 	 * Calculate how far to scroll
-	 * @param {Element} anchor The anchor element to scroll to
-	 * @param {Number} headerHeight Height of a fixed header, if any
-	 * @param {Number} offset Number of pixels by which to offset scroll
+	 * Clip support added by robjtede - https://github.com/cferdinandi/smooth-scroll/issues/405
+	 * @param {Element} anchor       The anchor element to scroll to
+	 * @param {Number}  headerHeight Height of a fixed header, if any
+	 * @param {Number}  offset       Number of pixels by which to offset scroll
+	 * @param {Boolean} clip         If true, adjust scroll distance to prevent abrupt stops near the bottom of the page
 	 * @returns {Number}
 	 */
-	var getEndLocation = function (anchor, headerHeight, offset) {
+	var getEndLocation = function (anchor, headerHeight, offset, clip) {
 		var location = 0;
 		if (anchor.offsetParent) {
 			do {
@@ -261,7 +264,10 @@
 			} while (anchor);
 		}
 		location = Math.max(location - headerHeight - offset, 0);
-		return location;
+		if (clip) {
+			location = Math.min(location, getDocumentHeight() - window.innerHeight);
+		}
+ 		return location;
 	};
 
 	/**
@@ -398,7 +404,7 @@
 				// Get the height of a fixed header if one exists and not already set
 				headerHeight = getHeaderHeight(fixedHeader);
 			}
-			var endLocation = isNum ? anchor : getEndLocation(anchorElem, headerHeight, parseInt((typeof animateSettings.offset === 'function' ? animateSettings.offset(anchor, toggle) : animateSettings.offset), 10)); // Location to scroll to
+			var endLocation = isNum ? anchor : getEndLocation(anchorElem, headerHeight, parseInt((typeof animateSettings.offset === 'function' ? animateSettings.offset(anchor, toggle) : animateSettings.offset), 10), animateSettings.clip); // Location to scroll to
 			var distance = endLocation - startLocation; // distance to travel
 			var documentHeight = getDocumentHeight();
 			var timeLapsed = 0;

From b89161c9c8cb05cb2d01985a78cd4fccab35578f Mon Sep 17 00:00:00 2001
From: cferdinandi <chris@gomakethings.com>
Date: Mon, 21 May 2018 10:32:40 -0400
Subject: [PATCH 14/51] Updated package.json dist path

---
 package.json | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/package.json b/package.json
index ea2ef2d..8ebf7ad 100755
--- a/package.json
+++ b/package.json
@@ -2,7 +2,7 @@
 	"name": "smooth-scroll",
 	"version": "14.2.0",
 	"description": "Animate scrolling to anchor links",
-	"main": "./dist/smooth-scroll.min.js",
+	"main": "./dist/smooth-scroll.polyfills.min.js",
 	"author": {
 		"name": "Chris Ferdinandi",
 		"url": "http://gomakethings.com/"

From 38e3d344ac546473a09717901bb0ab9ca0588445 Mon Sep 17 00:00:00 2001
From: Salem Ghoweri <me@salemghoweri.com>
Date: Fri, 15 Jun 2018 12:23:35 -0400
Subject: [PATCH 15/51] fix: make sure history.state exists to avoid JS error

---
 src/js/smooth-scroll.js | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/js/smooth-scroll.js b/src/js/smooth-scroll.js
index dd61943..34459aa 100755
--- a/src/js/smooth-scroll.js
+++ b/src/js/smooth-scroll.js
@@ -518,6 +518,9 @@
 		 * Animate scroll on popstate events
 		 */
 		var popstateHandler = function (event) {
+			// Stop if history.state doesn't exist (ex. if clicking on a broken anchor link).
+			// fixes `Cannot read property 'smoothScroll' of null` error getting thrown.
+			if (history.state === null) return; 
 
 			// Only run if state is a popstate record for this instantiation
 			if (!history.state.smoothScroll || history.state.smoothScroll !== JSON.stringify(settings)) return;
@@ -623,4 +626,4 @@
 
 	return SmoothScroll;
 
-});
\ No newline at end of file
+});

From e1ef66c0590ac43964f371b24499ec15148e4db1 Mon Sep 17 00:00:00 2001
From: cferdinandi <chris@gomakethings.com>
Date: Wed, 11 Jul 2018 11:30:09 -0400
Subject: [PATCH 16/51] v14.2.1 Fixed history state error
 https://github.com/cferdinandi/smooth-scroll/pull/443

---
 dist/smooth-scroll.js                    | 7 +++++--
 dist/smooth-scroll.min.js                | 4 ++--
 dist/smooth-scroll.polyfills.js          | 7 +++++--
 dist/smooth-scroll.polyfills.min.js      | 4 ++--
 docs/dist/smooth-scroll.js               | 7 +++++--
 docs/dist/smooth-scroll.min.js           | 4 ++--
 docs/dist/smooth-scroll.polyfills.js     | 7 +++++--
 docs/dist/smooth-scroll.polyfills.min.js | 4 ++--
 package.json                             | 2 +-
 9 files changed, 29 insertions(+), 17 deletions(-)
 mode change 100755 => 100644 dist/smooth-scroll.polyfills.js
 mode change 100755 => 100644 dist/smooth-scroll.polyfills.min.js
 mode change 100755 => 100644 docs/dist/smooth-scroll.polyfills.js
 mode change 100755 => 100644 docs/dist/smooth-scroll.polyfills.min.js

diff --git a/dist/smooth-scroll.js b/dist/smooth-scroll.js
index 424dd67..74ce7cc 100755
--- a/dist/smooth-scroll.js
+++ b/dist/smooth-scroll.js
@@ -1,5 +1,5 @@
 /*!
- * smooth-scroll v14.2.0: Animate scrolling to anchor links
+ * smooth-scroll v14.2.1: Animate scrolling to anchor links
  * (c) 2018 Chris Ferdinandi
  * MIT License
  * http://github.com/cferdinandi/smooth-scroll
@@ -525,6 +525,9 @@
 		 * Animate scroll on popstate events
 		 */
 		var popstateHandler = function (event) {
+			// Stop if history.state doesn't exist (ex. if clicking on a broken anchor link).
+			// fixes `Cannot read property 'smoothScroll' of null` error getting thrown.
+			if (history.state === null) return; 
 
 			// Only run if state is a popstate record for this instantiation
 			if (!history.state.smoothScroll || history.state.smoothScroll !== JSON.stringify(settings)) return;
@@ -630,4 +633,4 @@
 
 	return SmoothScroll;
 
-}));
\ No newline at end of file
+}));
diff --git a/dist/smooth-scroll.min.js b/dist/smooth-scroll.min.js
index e9a766d..f4ba547 100755
--- a/dist/smooth-scroll.min.js
+++ b/dist/smooth-scroll.min.js
@@ -1,2 +1,2 @@
-/*! smooth-scroll v14.2.0 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
-!(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},n=function(){return"querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype},o=function(){for(var e={},t=0;t<arguments.length;t++)!(function(t){for(var n in t)t.hasOwnProperty(n)&&(e[n]=t[n])})(arguments[t]);return e},r=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)},a=function(t){return parseInt(e.getComputedStyle(t).height,10)},i=function(e){var t;try{t=decodeURIComponent(e)}catch(n){t=e}return t},c=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,r=-1,a="",i=n.charCodeAt(0);++r<o;){if(0===(t=n.charCodeAt(r)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===r&&t>=48&&t<=57||1===r&&t>=48&&t<=57&&45===i?a+="\\"+t.toString(16)+" ":a+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(r):"\\"+n.charAt(r)}var c;try{c=decodeURIComponent("#"+a)}catch(e){c="#"+a}return c},u=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(t,n,o,r){var a=0;if(t.offsetParent)do{a+=t.offsetTop,t=t.offsetParent}while(t);return a=Math.max(a-n-o,0),r&&(a=Math.min(a,s()-e.innerHeight)),a},d=function(e){return e?a(e)+e.offsetTop:0},f=function(e,t,n){t||history.pushState&&n.updateURL&&history.pushState({smoothScroll:JSON.stringify(n),anchor:e.id},document.title,e===document.documentElement?"#top":"#"+e.id)},m=function(t,n,o){0===t&&document.body.focus(),o||(t.focus(),document.activeElement!==t&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},h=function(t,n,o,r){if(n.emitEvents&&"function"==typeof e.CustomEvent){var a=new CustomEvent(t,{bubbles:!0,detail:{anchor:o,toggle:r}});document.dispatchEvent(a)}};return function(a,p){var g,v,y,S,E,b,O,I={};I.cancelScroll=function(e){cancelAnimationFrame(O),O=null,e||h("scrollCancel",g)},I.animateScroll=function(n,r,a){var i=o(g||t,a||{}),c="[object Number]"===Object.prototype.toString.call(n),p=c||!n.tagName?null:n;if(c||p){var v=e.pageYOffset;i.header&&!S&&(S=document.querySelector(i.header)),E||(E=d(S));var y,b,C,w=c?n:l(p,E,parseInt("function"==typeof i.offset?i.offset(n,r):i.offset,10),i.clip),L=w-v,A=s(),H=0,q=function(t,o){var a=e.pageYOffset;if(t==o||a==o||(v<o&&e.innerHeight+a)>=A)return I.cancelScroll(!0),m(n,o,c),h("scrollStop",i,n,r),y=null,O=null,!0},Q=function(t){y||(y=t),H+=t-y,b=H/parseInt(i.speed,10),b=b>1?1:b,C=v+L*u(i,b),e.scrollTo(0,Math.floor(C)),q(C,w)||(O=e.requestAnimationFrame(Q),y=t)};0===e.pageYOffset&&e.scrollTo(0,0),f(n,c,i),h("scrollStart",i,n,r),I.cancelScroll(!0),e.requestAnimationFrame(Q)}};var C=function(t){if(!r()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&"closest"in t.target&&(y=t.target.closest(a))&&"a"===y.tagName.toLowerCase()&&!t.target.closest(g.ignore)&&y.hostname===e.location.hostname&&y.pathname===e.location.pathname&&/#/.test(y.href)){var n=c(i(y.hash)),o=g.topOnEmptyHash&&"#"===n?document.documentElement:document.querySelector(n);o=o||"#top"!==n?o:document.documentElement,o&&(t.preventDefault(),I.animateScroll(o,y))}},w=function(e){if(history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(g)&&history.state.anchor){var t=document.querySelector(c(i(history.state.anchor)));t&&I.animateScroll(t,null,{updateURL:!1})}},L=function(e){b||(b=setTimeout((function(){b=null,E=d(S)}),66))};return I.destroy=function(){g&&(document.removeEventListener("click",C,!1),e.removeEventListener("resize",L,!1),e.removeEventListener("popstate",w,!1),I.cancelScroll(),g=null,v=null,y=null,S=null,E=null,b=null,O=null)},I.init=function(r){if(!n())throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser 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\ No newline at end of file
+/*! smooth-scroll v14.2.1 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
+!(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},n=function(){return"querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype},o=function(){for(var e={},t=0;t<arguments.length;t++)!(function(t){for(var n in t)t.hasOwnProperty(n)&&(e[n]=t[n])})(arguments[t]);return e},r=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)},a=function(t){return parseInt(e.getComputedStyle(t).height,10)},i=function(e){var t;try{t=decodeURIComponent(e)}catch(n){t=e}return t},c=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,r=-1,a="",i=n.charCodeAt(0);++r<o;){if(0===(t=n.charCodeAt(r)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===r&&t>=48&&t<=57||1===r&&t>=48&&t<=57&&45===i?a+="\\"+t.toString(16)+" ":a+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(r):"\\"+n.charAt(r)}var c;try{c=decodeURIComponent("#"+a)}catch(e){c="#"+a}return c},u=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(t,n,o,r){var a=0;if(t.offsetParent)do{a+=t.offsetTop,t=t.offsetParent}while(t);return a=Math.max(a-n-o,0),r&&(a=Math.min(a,s()-e.innerHeight)),a},d=function(e){return e?a(e)+e.offsetTop:0},f=function(e,t,n){t||history.pushState&&n.updateURL&&history.pushState({smoothScroll:JSON.stringify(n),anchor:e.id},document.title,e===document.documentElement?"#top":"#"+e.id)},m=function(t,n,o){0===t&&document.body.focus(),o||(t.focus(),document.activeElement!==t&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},h=function(t,n,o,r){if(n.emitEvents&&"function"==typeof e.CustomEvent){var a=new CustomEvent(t,{bubbles:!0,detail:{anchor:o,toggle:r}});document.dispatchEvent(a)}};return function(a,p){var g,v,y,S,E,b,O,I={};I.cancelScroll=function(e){cancelAnimationFrame(O),O=null,e||h("scrollCancel",g)},I.animateScroll=function(n,r,a){var i=o(g||t,a||{}),c="[object Number]"===Object.prototype.toString.call(n),p=c||!n.tagName?null:n;if(c||p){var v=e.pageYOffset;i.header&&!S&&(S=document.querySelector(i.header)),E||(E=d(S));var y,b,C,w=c?n:l(p,E,parseInt("function"==typeof i.offset?i.offset(n,r):i.offset,10),i.clip),L=w-v,A=s(),H=0,q=function(t,o){var a=e.pageYOffset;if(t==o||a==o||(v<o&&e.innerHeight+a)>=A)return I.cancelScroll(!0),m(n,o,c),h("scrollStop",i,n,r),y=null,O=null,!0},Q=function(t){y||(y=t),H+=t-y,b=H/parseInt(i.speed,10),b=b>1?1:b,C=v+L*u(i,b),e.scrollTo(0,Math.floor(C)),q(C,w)||(O=e.requestAnimationFrame(Q),y=t)};0===e.pageYOffset&&e.scrollTo(0,0),f(n,c,i),h("scrollStart",i,n,r),I.cancelScroll(!0),e.requestAnimationFrame(Q)}};var C=function(t){if(!r()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&"closest"in t.target&&(y=t.target.closest(a))&&"a"===y.tagName.toLowerCase()&&!t.target.closest(g.ignore)&&y.hostname===e.location.hostname&&y.pathname===e.location.pathname&&/#/.test(y.href)){var n=c(i(y.hash)),o=g.topOnEmptyHash&&"#"===n?document.documentElement:document.querySelector(n);o=o||"#top"!==n?o:document.documentElement,o&&(t.preventDefault(),I.animateScroll(o,y))}},w=function(e){if(null!==history.state&&history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(g)&&history.state.anchor){var t=document.querySelector(c(i(history.state.anchor)));t&&I.animateScroll(t,null,{updateURL:!1})}},L=function(e){b||(b=setTimeout((function(){b=null,E=d(S)}),66))};return I.destroy=function(){g&&(document.removeEventListener("click",C,!1),e.removeEventListener("resize",L,!1),e.removeEventListener("popstate",w,!1),I.cancelScroll(),g=null,v=null,y=null,S=null,E=null,b=null,O=null)},I.init=function(r){if(!n())throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";I.destroy(),g=o(t,r||{}),S=g.header?document.querySelector(g.header):null,E=d(S),document.addEventListener("click",C,!1),S&&e.addEventListener("resize",L,!1),g.updateURL&&g.popstate&&e.addEventListener("popstate",w,!1)},I.init(p),I}}));
\ No newline at end of file
diff --git a/dist/smooth-scroll.polyfills.js b/dist/smooth-scroll.polyfills.js
old mode 100755
new mode 100644
index 5cf7e77..553531a
--- a/dist/smooth-scroll.polyfills.js
+++ b/dist/smooth-scroll.polyfills.js
@@ -1,5 +1,5 @@
 /*!
- * smooth-scroll v14.2.0: Animate scrolling to anchor links
+ * smooth-scroll v14.2.1: Animate scrolling to anchor links
  * (c) 2018 Chris Ferdinandi
  * MIT License
  * http://github.com/cferdinandi/smooth-scroll
@@ -595,6 +595,9 @@ if (window.Element && !Element.prototype.closest) {
 		 * Animate scroll on popstate events
 		 */
 		var popstateHandler = function (event) {
+			// Stop if history.state doesn't exist (ex. if clicking on a broken anchor link).
+			// fixes `Cannot read property 'smoothScroll' of null` error getting thrown.
+			if (history.state === null) return; 
 
 			// Only run if state is a popstate record for this instantiation
 			if (!history.state.smoothScroll || history.state.smoothScroll !== JSON.stringify(settings)) return;
@@ -700,4 +703,4 @@ if (window.Element && !Element.prototype.closest) {
 
 	return SmoothScroll;
 
-}));
\ No newline at end of file
+}));
diff --git a/dist/smooth-scroll.polyfills.min.js b/dist/smooth-scroll.polyfills.min.js
old mode 100755
new mode 100644
index e871ac2..4ba1334
--- a/dist/smooth-scroll.polyfills.min.js
+++ b/dist/smooth-scroll.polyfills.min.js
@@ -1,2 +1,2 @@
-/*! smooth-scroll v14.2.0 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
-window.Element&&!Element.prototype.closest&&(Element.prototype.closest=function(e){var t,n=(this.document||this.ownerDocument).querySelectorAll(e),o=this;do{for(t=n.length;--t>=0&&n.item(t)!==o;);}while(t<0&&(o=o.parentElement));return o}),(function(){function e(e,t){t=t||{bubbles:!1,cancelable:!1,detail:void 0};var n=document.createEvent("CustomEvent");return n.initCustomEvent(e,t.bubbles,t.cancelable,t.detail),n}if("function"==typeof window.CustomEvent)return!1;e.prototype=window.Event.prototype,window.CustomEvent=e})(),(function(){for(var e=0,t=["ms","moz","webkit","o"],n=0;n<t.length&&!window.requestAnimationFrame;++n)window.requestAnimationFrame=window[t[n]+"RequestAnimationFrame"],window.cancelAnimationFrame=window[t[n]+"CancelAnimationFrame"]||window[t[n]+"CancelRequestAnimationFrame"];window.requestAnimationFrame||(window.requestAnimationFrame=function(t,n){var o=(new Date).getTime(),i=Math.max(0,16-(o-e)),r=window.setTimeout((function(){t(o+i)}),i);return e=o+i,r}),window.cancelAnimationFrame||(window.cancelAnimationFrame=function(e){clearTimeout(e)})})(),(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},n=function(){return"querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype},o=function(){for(var e={},t=0;t<arguments.length;t++)!(function(t){for(var n in t)t.hasOwnProperty(n)&&(e[n]=t[n])})(arguments[t]);return e},i=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)},r=function(t){return parseInt(e.getComputedStyle(t).height,10)},a=function(e){var t;try{t=decodeURIComponent(e)}catch(n){t=e}return t},c=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,i=-1,r="",a=n.charCodeAt(0);++i<o;){if(0===(t=n.charCodeAt(i)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===i&&t>=48&&t<=57||1===i&&t>=48&&t<=57&&45===a?r+="\\"+t.toString(16)+" ":r+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(i):"\\"+n.charAt(i)}var c;try{c=decodeURIComponent("#"+r)}catch(e){c="#"+r}return c},u=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(t,n,o,i){var r=0;if(t.offsetParent)do{r+=t.offsetTop,t=t.offsetParent}while(t);return r=Math.max(r-n-o,0),i&&(r=Math.min(r,s()-e.innerHeight)),r},m=function(e){return e?r(e)+e.offsetTop:0},d=function(e,t,n){t||history.pushState&&n.updateURL&&history.pushState({smoothScroll:JSON.stringify(n),anchor:e.id},document.title,e===document.documentElement?"#top":"#"+e.id)},f=function(t,n,o){0===t&&document.body.focus(),o||(t.focus(),document.activeElement!==t&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},h=function(t,n,o,i){if(n.emitEvents&&"function"==typeof e.CustomEvent){var r=new CustomEvent(t,{bubbles:!0,detail:{anchor:o,toggle:i}});document.dispatchEvent(r)}};return function(r,p){var g,v,w,y,E,b,S,A={};A.cancelScroll=function(e){cancelAnimationFrame(S),S=null,e||h("scrollCancel",g)},A.animateScroll=function(n,i,r){var a=o(g||t,r||{}),c="[object Number]"===Object.prototype.toString.call(n),p=c||!n.tagName?null:n;if(c||p){var v=e.pageYOffset;a.header&&!y&&(y=document.querySelector(a.header)),E||(E=m(y));var w,b,C,O=c?n:l(p,E,parseInt("function"==typeof a.offset?a.offset(n,i):a.offset,10),a.clip),I=O-v,q=s(),F=0,L=function(t,o){var r=e.pageYOffset;if(t==o||r==o||(v<o&&e.innerHeight+r)>=q)return A.cancelScroll(!0),f(n,o,c),h("scrollStop",a,n,i),w=null,S=null,!0},H=function(t){w||(w=t),F+=t-w,b=F/parseInt(a.speed,10),b=b>1?1:b,C=v+I*u(a,b),e.scrollTo(0,Math.floor(C)),L(C,O)||(S=e.requestAnimationFrame(H),w=t)};0===e.pageYOffset&&e.scrollTo(0,0),d(n,c,a),h("scrollStart",a,n,i),A.cancelScroll(!0),e.requestAnimationFrame(H)}};var C=function(t){if(!i()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&"closest"in t.target&&(w=t.target.closest(r))&&"a"===w.tagName.toLowerCase()&&!t.target.closest(g.ignore)&&w.hostname===e.location.hostname&&w.pathname===e.location.pathname&&/#/.test(w.href)){var n=c(a(w.hash)),o=g.topOnEmptyHash&&"#"===n?document.documentElement:document.querySelector(n);o=o||"#top"!==n?o:document.documentElement,o&&(t.preventDefault(),A.animateScroll(o,w))}},O=function(e){if(history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(g)&&history.state.anchor){var t=document.querySelector(c(a(history.state.anchor)));t&&A.animateScroll(t,null,{updateURL:!1})}},I=function(e){b||(b=setTimeout((function(){b=null,E=m(y)}),66))};return A.destroy=function(){g&&(document.removeEventListener("click",C,!1),e.removeEventListener("resize",I,!1),e.removeEventListener("popstate",O,!1),A.cancelScroll(),g=null,v=null,w=null,y=null,E=null,b=null,S=null)},A.init=function(i){if(!n())throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";A.destroy(),g=o(t,i||{}),y=g.header?document.querySelector(g.header):null,E=m(y),document.addEventListener("click",C,!1),y&&e.addEventListener("resize",I,!1),g.updateURL&&g.popstate&&e.addEventListener("popstate",O,!1)},A.init(p),A}}));
\ No newline at end of file
+/*! smooth-scroll v14.2.1 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
+window.Element&&!Element.prototype.closest&&(Element.prototype.closest=function(e){var t,n=(this.document||this.ownerDocument).querySelectorAll(e),o=this;do{for(t=n.length;--t>=0&&n.item(t)!==o;);}while(t<0&&(o=o.parentElement));return o}),(function(){function e(e,t){t=t||{bubbles:!1,cancelable:!1,detail:void 0};var n=document.createEvent("CustomEvent");return n.initCustomEvent(e,t.bubbles,t.cancelable,t.detail),n}if("function"==typeof window.CustomEvent)return!1;e.prototype=window.Event.prototype,window.CustomEvent=e})(),(function(){for(var e=0,t=["ms","moz","webkit","o"],n=0;n<t.length&&!window.requestAnimationFrame;++n)window.requestAnimationFrame=window[t[n]+"RequestAnimationFrame"],window.cancelAnimationFrame=window[t[n]+"CancelAnimationFrame"]||window[t[n]+"CancelRequestAnimationFrame"];window.requestAnimationFrame||(window.requestAnimationFrame=function(t,n){var o=(new Date).getTime(),i=Math.max(0,16-(o-e)),r=window.setTimeout((function(){t(o+i)}),i);return e=o+i,r}),window.cancelAnimationFrame||(window.cancelAnimationFrame=function(e){clearTimeout(e)})})(),(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},n=function(){return"querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype},o=function(){for(var e={},t=0;t<arguments.length;t++)!(function(t){for(var n in t)t.hasOwnProperty(n)&&(e[n]=t[n])})(arguments[t]);return e},i=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)},r=function(t){return parseInt(e.getComputedStyle(t).height,10)},a=function(e){var t;try{t=decodeURIComponent(e)}catch(n){t=e}return t},u=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,i=-1,r="",a=n.charCodeAt(0);++i<o;){if(0===(t=n.charCodeAt(i)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===i&&t>=48&&t<=57||1===i&&t>=48&&t<=57&&45===a?r+="\\"+t.toString(16)+" ":r+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(i):"\\"+n.charAt(i)}var u;try{u=decodeURIComponent("#"+r)}catch(e){u="#"+r}return u},c=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(t,n,o,i){var r=0;if(t.offsetParent)do{r+=t.offsetTop,t=t.offsetParent}while(t);return r=Math.max(r-n-o,0),i&&(r=Math.min(r,s()-e.innerHeight)),r},m=function(e){return e?r(e)+e.offsetTop:0},d=function(e,t,n){t||history.pushState&&n.updateURL&&history.pushState({smoothScroll:JSON.stringify(n),anchor:e.id},document.title,e===document.documentElement?"#top":"#"+e.id)},f=function(t,n,o){0===t&&document.body.focus(),o||(t.focus(),document.activeElement!==t&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},h=function(t,n,o,i){if(n.emitEvents&&"function"==typeof e.CustomEvent){var r=new CustomEvent(t,{bubbles:!0,detail:{anchor:o,toggle:i}});document.dispatchEvent(r)}};return function(r,p){var g,v,w,y,E,b,S,A={};A.cancelScroll=function(e){cancelAnimationFrame(S),S=null,e||h("scrollCancel",g)},A.animateScroll=function(n,i,r){var a=o(g||t,r||{}),u="[object Number]"===Object.prototype.toString.call(n),p=u||!n.tagName?null:n;if(u||p){var v=e.pageYOffset;a.header&&!y&&(y=document.querySelector(a.header)),E||(E=m(y));var w,b,C,O=u?n:l(p,E,parseInt("function"==typeof a.offset?a.offset(n,i):a.offset,10),a.clip),I=O-v,q=s(),F=0,L=function(t,o){var r=e.pageYOffset;if(t==o||r==o||(v<o&&e.innerHeight+r)>=q)return A.cancelScroll(!0),f(n,o,u),h("scrollStop",a,n,i),w=null,S=null,!0},H=function(t){w||(w=t),F+=t-w,b=F/parseInt(a.speed,10),b=b>1?1:b,C=v+I*c(a,b),e.scrollTo(0,Math.floor(C)),L(C,O)||(S=e.requestAnimationFrame(H),w=t)};0===e.pageYOffset&&e.scrollTo(0,0),d(n,u,a),h("scrollStart",a,n,i),A.cancelScroll(!0),e.requestAnimationFrame(H)}};var C=function(t){if(!i()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&"closest"in t.target&&(w=t.target.closest(r))&&"a"===w.tagName.toLowerCase()&&!t.target.closest(g.ignore)&&w.hostname===e.location.hostname&&w.pathname===e.location.pathname&&/#/.test(w.href)){var n=u(a(w.hash)),o=g.topOnEmptyHash&&"#"===n?document.documentElement:document.querySelector(n);o=o||"#top"!==n?o:document.documentElement,o&&(t.preventDefault(),A.animateScroll(o,w))}},O=function(e){if(null!==history.state&&history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(g)&&history.state.anchor){var t=document.querySelector(u(a(history.state.anchor)));t&&A.animateScroll(t,null,{updateURL:!1})}},I=function(e){b||(b=setTimeout((function(){b=null,E=m(y)}),66))};return A.destroy=function(){g&&(document.removeEventListener("click",C,!1),e.removeEventListener("resize",I,!1),e.removeEventListener("popstate",O,!1),A.cancelScroll(),g=null,v=null,w=null,y=null,E=null,b=null,S=null)},A.init=function(i){if(!n())throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";A.destroy(),g=o(t,i||{}),y=g.header?document.querySelector(g.header):null,E=m(y),document.addEventListener("click",C,!1),y&&e.addEventListener("resize",I,!1),g.updateURL&&g.popstate&&e.addEventListener("popstate",O,!1)},A.init(p),A}}));
\ No newline at end of file
diff --git a/docs/dist/smooth-scroll.js b/docs/dist/smooth-scroll.js
index 424dd67..74ce7cc 100755
--- a/docs/dist/smooth-scroll.js
+++ b/docs/dist/smooth-scroll.js
@@ -1,5 +1,5 @@
 /*!
- * smooth-scroll v14.2.0: Animate scrolling to anchor links
+ * smooth-scroll v14.2.1: Animate scrolling to anchor links
  * (c) 2018 Chris Ferdinandi
  * MIT License
  * http://github.com/cferdinandi/smooth-scroll
@@ -525,6 +525,9 @@
 		 * Animate scroll on popstate events
 		 */
 		var popstateHandler = function (event) {
+			// Stop if history.state doesn't exist (ex. if clicking on a broken anchor link).
+			// fixes `Cannot read property 'smoothScroll' of null` error getting thrown.
+			if (history.state === null) return; 
 
 			// Only run if state is a popstate record for this instantiation
 			if (!history.state.smoothScroll || history.state.smoothScroll !== JSON.stringify(settings)) return;
@@ -630,4 +633,4 @@
 
 	return SmoothScroll;
 
-}));
\ No newline at end of file
+}));
diff --git a/docs/dist/smooth-scroll.min.js b/docs/dist/smooth-scroll.min.js
index e9a766d..f4ba547 100755
--- a/docs/dist/smooth-scroll.min.js
+++ b/docs/dist/smooth-scroll.min.js
@@ -1,2 +1,2 @@
-/*! smooth-scroll v14.2.0 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
-!(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},n=function(){return"querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype},o=function(){for(var e={},t=0;t<arguments.length;t++)!(function(t){for(var n in t)t.hasOwnProperty(n)&&(e[n]=t[n])})(arguments[t]);return e},r=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)},a=function(t){return parseInt(e.getComputedStyle(t).height,10)},i=function(e){var t;try{t=decodeURIComponent(e)}catch(n){t=e}return t},c=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,r=-1,a="",i=n.charCodeAt(0);++r<o;){if(0===(t=n.charCodeAt(r)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===r&&t>=48&&t<=57||1===r&&t>=48&&t<=57&&45===i?a+="\\"+t.toString(16)+" ":a+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(r):"\\"+n.charAt(r)}var c;try{c=decodeURIComponent("#"+a)}catch(e){c="#"+a}return c},u=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(t,n,o,r){var a=0;if(t.offsetParent)do{a+=t.offsetTop,t=t.offsetParent}while(t);return a=Math.max(a-n-o,0),r&&(a=Math.min(a,s()-e.innerHeight)),a},d=function(e){return e?a(e)+e.offsetTop:0},f=function(e,t,n){t||history.pushState&&n.updateURL&&history.pushState({smoothScroll:JSON.stringify(n),anchor:e.id},document.title,e===document.documentElement?"#top":"#"+e.id)},m=function(t,n,o){0===t&&document.body.focus(),o||(t.focus(),document.activeElement!==t&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},h=function(t,n,o,r){if(n.emitEvents&&"function"==typeof e.CustomEvent){var a=new CustomEvent(t,{bubbles:!0,detail:{anchor:o,toggle:r}});document.dispatchEvent(a)}};return function(a,p){var g,v,y,S,E,b,O,I={};I.cancelScroll=function(e){cancelAnimationFrame(O),O=null,e||h("scrollCancel",g)},I.animateScroll=function(n,r,a){var i=o(g||t,a||{}),c="[object Number]"===Object.prototype.toString.call(n),p=c||!n.tagName?null:n;if(c||p){var v=e.pageYOffset;i.header&&!S&&(S=document.querySelector(i.header)),E||(E=d(S));var y,b,C,w=c?n:l(p,E,parseInt("function"==typeof i.offset?i.offset(n,r):i.offset,10),i.clip),L=w-v,A=s(),H=0,q=function(t,o){var a=e.pageYOffset;if(t==o||a==o||(v<o&&e.innerHeight+a)>=A)return I.cancelScroll(!0),m(n,o,c),h("scrollStop",i,n,r),y=null,O=null,!0},Q=function(t){y||(y=t),H+=t-y,b=H/parseInt(i.speed,10),b=b>1?1:b,C=v+L*u(i,b),e.scrollTo(0,Math.floor(C)),q(C,w)||(O=e.requestAnimationFrame(Q),y=t)};0===e.pageYOffset&&e.scrollTo(0,0),f(n,c,i),h("scrollStart",i,n,r),I.cancelScroll(!0),e.requestAnimationFrame(Q)}};var C=function(t){if(!r()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&"closest"in t.target&&(y=t.target.closest(a))&&"a"===y.tagName.toLowerCase()&&!t.target.closest(g.ignore)&&y.hostname===e.location.hostname&&y.pathname===e.location.pathname&&/#/.test(y.href)){var n=c(i(y.hash)),o=g.topOnEmptyHash&&"#"===n?document.documentElement:document.querySelector(n);o=o||"#top"!==n?o:document.documentElement,o&&(t.preventDefault(),I.animateScroll(o,y))}},w=function(e){if(history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(g)&&history.state.anchor){var t=document.querySelector(c(i(history.state.anchor)));t&&I.animateScroll(t,null,{updateURL:!1})}},L=function(e){b||(b=setTimeout((function(){b=null,E=d(S)}),66))};return I.destroy=function(){g&&(document.removeEventListener("click",C,!1),e.removeEventListener("resize",L,!1),e.removeEventListener("popstate",w,!1),I.cancelScroll(),g=null,v=null,y=null,S=null,E=null,b=null,O=null)},I.init=function(r){if(!n())throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";I.destroy(),g=o(t,r||{}),S=g.header?document.querySelector(g.header):null,E=d(S),document.addEventListener("click",C,!1),S&&e.addEventListener("resize",L,!1),g.updateURL&&g.popstate&&e.addEventListener("popstate",w,!1)},I.init(p),I}}));
\ No newline at end of file
+/*! smooth-scroll v14.2.1 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
+!(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},n=function(){return"querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype},o=function(){for(var e={},t=0;t<arguments.length;t++)!(function(t){for(var n in t)t.hasOwnProperty(n)&&(e[n]=t[n])})(arguments[t]);return e},r=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)},a=function(t){return parseInt(e.getComputedStyle(t).height,10)},i=function(e){var t;try{t=decodeURIComponent(e)}catch(n){t=e}return t},c=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,r=-1,a="",i=n.charCodeAt(0);++r<o;){if(0===(t=n.charCodeAt(r)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===r&&t>=48&&t<=57||1===r&&t>=48&&t<=57&&45===i?a+="\\"+t.toString(16)+" ":a+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(r):"\\"+n.charAt(r)}var c;try{c=decodeURIComponent("#"+a)}catch(e){c="#"+a}return c},u=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(t,n,o,r){var a=0;if(t.offsetParent)do{a+=t.offsetTop,t=t.offsetParent}while(t);return a=Math.max(a-n-o,0),r&&(a=Math.min(a,s()-e.innerHeight)),a},d=function(e){return e?a(e)+e.offsetTop:0},f=function(e,t,n){t||history.pushState&&n.updateURL&&history.pushState({smoothScroll:JSON.stringify(n),anchor:e.id},document.title,e===document.documentElement?"#top":"#"+e.id)},m=function(t,n,o){0===t&&document.body.focus(),o||(t.focus(),document.activeElement!==t&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},h=function(t,n,o,r){if(n.emitEvents&&"function"==typeof e.CustomEvent){var a=new CustomEvent(t,{bubbles:!0,detail:{anchor:o,toggle:r}});document.dispatchEvent(a)}};return function(a,p){var g,v,y,S,E,b,O,I={};I.cancelScroll=function(e){cancelAnimationFrame(O),O=null,e||h("scrollCancel",g)},I.animateScroll=function(n,r,a){var i=o(g||t,a||{}),c="[object Number]"===Object.prototype.toString.call(n),p=c||!n.tagName?null:n;if(c||p){var v=e.pageYOffset;i.header&&!S&&(S=document.querySelector(i.header)),E||(E=d(S));var y,b,C,w=c?n:l(p,E,parseInt("function"==typeof i.offset?i.offset(n,r):i.offset,10),i.clip),L=w-v,A=s(),H=0,q=function(t,o){var a=e.pageYOffset;if(t==o||a==o||(v<o&&e.innerHeight+a)>=A)return I.cancelScroll(!0),m(n,o,c),h("scrollStop",i,n,r),y=null,O=null,!0},Q=function(t){y||(y=t),H+=t-y,b=H/parseInt(i.speed,10),b=b>1?1:b,C=v+L*u(i,b),e.scrollTo(0,Math.floor(C)),q(C,w)||(O=e.requestAnimationFrame(Q),y=t)};0===e.pageYOffset&&e.scrollTo(0,0),f(n,c,i),h("scrollStart",i,n,r),I.cancelScroll(!0),e.requestAnimationFrame(Q)}};var C=function(t){if(!r()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&"closest"in t.target&&(y=t.target.closest(a))&&"a"===y.tagName.toLowerCase()&&!t.target.closest(g.ignore)&&y.hostname===e.location.hostname&&y.pathname===e.location.pathname&&/#/.test(y.href)){var n=c(i(y.hash)),o=g.topOnEmptyHash&&"#"===n?document.documentElement:document.querySelector(n);o=o||"#top"!==n?o:document.documentElement,o&&(t.preventDefault(),I.animateScroll(o,y))}},w=function(e){if(null!==history.state&&history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(g)&&history.state.anchor){var t=document.querySelector(c(i(history.state.anchor)));t&&I.animateScroll(t,null,{updateURL:!1})}},L=function(e){b||(b=setTimeout((function(){b=null,E=d(S)}),66))};return I.destroy=function(){g&&(document.removeEventListener("click",C,!1),e.removeEventListener("resize",L,!1),e.removeEventListener("popstate",w,!1),I.cancelScroll(),g=null,v=null,y=null,S=null,E=null,b=null,O=null)},I.init=function(r){if(!n())throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";I.destroy(),g=o(t,r||{}),S=g.header?document.querySelector(g.header):null,E=d(S),document.addEventListener("click",C,!1),S&&e.addEventListener("resize",L,!1),g.updateURL&&g.popstate&&e.addEventListener("popstate",w,!1)},I.init(p),I}}));
\ No newline at end of file
diff --git a/docs/dist/smooth-scroll.polyfills.js b/docs/dist/smooth-scroll.polyfills.js
old mode 100755
new mode 100644
index 5cf7e77..553531a
--- a/docs/dist/smooth-scroll.polyfills.js
+++ b/docs/dist/smooth-scroll.polyfills.js
@@ -1,5 +1,5 @@
 /*!
- * smooth-scroll v14.2.0: Animate scrolling to anchor links
+ * smooth-scroll v14.2.1: Animate scrolling to anchor links
  * (c) 2018 Chris Ferdinandi
  * MIT License
  * http://github.com/cferdinandi/smooth-scroll
@@ -595,6 +595,9 @@ if (window.Element && !Element.prototype.closest) {
 		 * Animate scroll on popstate events
 		 */
 		var popstateHandler = function (event) {
+			// Stop if history.state doesn't exist (ex. if clicking on a broken anchor link).
+			// fixes `Cannot read property 'smoothScroll' of null` error getting thrown.
+			if (history.state === null) return; 
 
 			// Only run if state is a popstate record for this instantiation
 			if (!history.state.smoothScroll || history.state.smoothScroll !== JSON.stringify(settings)) return;
@@ -700,4 +703,4 @@ if (window.Element && !Element.prototype.closest) {
 
 	return SmoothScroll;
 
-}));
\ No newline at end of file
+}));
diff --git a/docs/dist/smooth-scroll.polyfills.min.js b/docs/dist/smooth-scroll.polyfills.min.js
old mode 100755
new mode 100644
index e871ac2..4ba1334
--- a/docs/dist/smooth-scroll.polyfills.min.js
+++ b/docs/dist/smooth-scroll.polyfills.min.js
@@ -1,2 +1,2 @@
-/*! smooth-scroll v14.2.0 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
-window.Element&&!Element.prototype.closest&&(Element.prototype.closest=function(e){var t,n=(this.document||this.ownerDocument).querySelectorAll(e),o=this;do{for(t=n.length;--t>=0&&n.item(t)!==o;);}while(t<0&&(o=o.parentElement));return o}),(function(){function e(e,t){t=t||{bubbles:!1,cancelable:!1,detail:void 0};var n=document.createEvent("CustomEvent");return n.initCustomEvent(e,t.bubbles,t.cancelable,t.detail),n}if("function"==typeof window.CustomEvent)return!1;e.prototype=window.Event.prototype,window.CustomEvent=e})(),(function(){for(var e=0,t=["ms","moz","webkit","o"],n=0;n<t.length&&!window.requestAnimationFrame;++n)window.requestAnimationFrame=window[t[n]+"RequestAnimationFrame"],window.cancelAnimationFrame=window[t[n]+"CancelAnimationFrame"]||window[t[n]+"CancelRequestAnimationFrame"];window.requestAnimationFrame||(window.requestAnimationFrame=function(t,n){var o=(new Date).getTime(),i=Math.max(0,16-(o-e)),r=window.setTimeout((function(){t(o+i)}),i);return e=o+i,r}),window.cancelAnimationFrame||(window.cancelAnimationFrame=function(e){clearTimeout(e)})})(),(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},n=function(){return"querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype},o=function(){for(var e={},t=0;t<arguments.length;t++)!(function(t){for(var n in t)t.hasOwnProperty(n)&&(e[n]=t[n])})(arguments[t]);return e},i=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)},r=function(t){return parseInt(e.getComputedStyle(t).height,10)},a=function(e){var t;try{t=decodeURIComponent(e)}catch(n){t=e}return t},c=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,i=-1,r="",a=n.charCodeAt(0);++i<o;){if(0===(t=n.charCodeAt(i)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===i&&t>=48&&t<=57||1===i&&t>=48&&t<=57&&45===a?r+="\\"+t.toString(16)+" ":r+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(i):"\\"+n.charAt(i)}var c;try{c=decodeURIComponent("#"+r)}catch(e){c="#"+r}return c},u=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(t,n,o,i){var r=0;if(t.offsetParent)do{r+=t.offsetTop,t=t.offsetParent}while(t);return r=Math.max(r-n-o,0),i&&(r=Math.min(r,s()-e.innerHeight)),r},m=function(e){return e?r(e)+e.offsetTop:0},d=function(e,t,n){t||history.pushState&&n.updateURL&&history.pushState({smoothScroll:JSON.stringify(n),anchor:e.id},document.title,e===document.documentElement?"#top":"#"+e.id)},f=function(t,n,o){0===t&&document.body.focus(),o||(t.focus(),document.activeElement!==t&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},h=function(t,n,o,i){if(n.emitEvents&&"function"==typeof e.CustomEvent){var r=new CustomEvent(t,{bubbles:!0,detail:{anchor:o,toggle:i}});document.dispatchEvent(r)}};return function(r,p){var g,v,w,y,E,b,S,A={};A.cancelScroll=function(e){cancelAnimationFrame(S),S=null,e||h("scrollCancel",g)},A.animateScroll=function(n,i,r){var a=o(g||t,r||{}),c="[object Number]"===Object.prototype.toString.call(n),p=c||!n.tagName?null:n;if(c||p){var v=e.pageYOffset;a.header&&!y&&(y=document.querySelector(a.header)),E||(E=m(y));var w,b,C,O=c?n:l(p,E,parseInt("function"==typeof a.offset?a.offset(n,i):a.offset,10),a.clip),I=O-v,q=s(),F=0,L=function(t,o){var r=e.pageYOffset;if(t==o||r==o||(v<o&&e.innerHeight+r)>=q)return A.cancelScroll(!0),f(n,o,c),h("scrollStop",a,n,i),w=null,S=null,!0},H=function(t){w||(w=t),F+=t-w,b=F/parseInt(a.speed,10),b=b>1?1:b,C=v+I*u(a,b),e.scrollTo(0,Math.floor(C)),L(C,O)||(S=e.requestAnimationFrame(H),w=t)};0===e.pageYOffset&&e.scrollTo(0,0),d(n,c,a),h("scrollStart",a,n,i),A.cancelScroll(!0),e.requestAnimationFrame(H)}};var C=function(t){if(!i()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&"closest"in t.target&&(w=t.target.closest(r))&&"a"===w.tagName.toLowerCase()&&!t.target.closest(g.ignore)&&w.hostname===e.location.hostname&&w.pathname===e.location.pathname&&/#/.test(w.href)){var n=c(a(w.hash)),o=g.topOnEmptyHash&&"#"===n?document.documentElement:document.querySelector(n);o=o||"#top"!==n?o:document.documentElement,o&&(t.preventDefault(),A.animateScroll(o,w))}},O=function(e){if(history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(g)&&history.state.anchor){var t=document.querySelector(c(a(history.state.anchor)));t&&A.animateScroll(t,null,{updateURL:!1})}},I=function(e){b||(b=setTimeout((function(){b=null,E=m(y)}),66))};return A.destroy=function(){g&&(document.removeEventListener("click",C,!1),e.removeEventListener("resize",I,!1),e.removeEventListener("popstate",O,!1),A.cancelScroll(),g=null,v=null,w=null,y=null,E=null,b=null,S=null)},A.init=function(i){if(!n())throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";A.destroy(),g=o(t,i||{}),y=g.header?document.querySelector(g.header):null,E=m(y),document.addEventListener("click",C,!1),y&&e.addEventListener("resize",I,!1),g.updateURL&&g.popstate&&e.addEventListener("popstate",O,!1)},A.init(p),A}}));
\ No newline at end of file
+/*! smooth-scroll v14.2.1 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
+window.Element&&!Element.prototype.closest&&(Element.prototype.closest=function(e){var t,n=(this.document||this.ownerDocument).querySelectorAll(e),o=this;do{for(t=n.length;--t>=0&&n.item(t)!==o;);}while(t<0&&(o=o.parentElement));return o}),(function(){function e(e,t){t=t||{bubbles:!1,cancelable:!1,detail:void 0};var n=document.createEvent("CustomEvent");return n.initCustomEvent(e,t.bubbles,t.cancelable,t.detail),n}if("function"==typeof window.CustomEvent)return!1;e.prototype=window.Event.prototype,window.CustomEvent=e})(),(function(){for(var e=0,t=["ms","moz","webkit","o"],n=0;n<t.length&&!window.requestAnimationFrame;++n)window.requestAnimationFrame=window[t[n]+"RequestAnimationFrame"],window.cancelAnimationFrame=window[t[n]+"CancelAnimationFrame"]||window[t[n]+"CancelRequestAnimationFrame"];window.requestAnimationFrame||(window.requestAnimationFrame=function(t,n){var o=(new Date).getTime(),i=Math.max(0,16-(o-e)),r=window.setTimeout((function(){t(o+i)}),i);return e=o+i,r}),window.cancelAnimationFrame||(window.cancelAnimationFrame=function(e){clearTimeout(e)})})(),(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},n=function(){return"querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype},o=function(){for(var e={},t=0;t<arguments.length;t++)!(function(t){for(var n in t)t.hasOwnProperty(n)&&(e[n]=t[n])})(arguments[t]);return e},i=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)},r=function(t){return parseInt(e.getComputedStyle(t).height,10)},a=function(e){var t;try{t=decodeURIComponent(e)}catch(n){t=e}return t},u=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,i=-1,r="",a=n.charCodeAt(0);++i<o;){if(0===(t=n.charCodeAt(i)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===i&&t>=48&&t<=57||1===i&&t>=48&&t<=57&&45===a?r+="\\"+t.toString(16)+" ":r+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(i):"\\"+n.charAt(i)}var u;try{u=decodeURIComponent("#"+r)}catch(e){u="#"+r}return u},c=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(t,n,o,i){var r=0;if(t.offsetParent)do{r+=t.offsetTop,t=t.offsetParent}while(t);return r=Math.max(r-n-o,0),i&&(r=Math.min(r,s()-e.innerHeight)),r},m=function(e){return e?r(e)+e.offsetTop:0},d=function(e,t,n){t||history.pushState&&n.updateURL&&history.pushState({smoothScroll:JSON.stringify(n),anchor:e.id},document.title,e===document.documentElement?"#top":"#"+e.id)},f=function(t,n,o){0===t&&document.body.focus(),o||(t.focus(),document.activeElement!==t&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},h=function(t,n,o,i){if(n.emitEvents&&"function"==typeof e.CustomEvent){var r=new CustomEvent(t,{bubbles:!0,detail:{anchor:o,toggle:i}});document.dispatchEvent(r)}};return function(r,p){var g,v,w,y,E,b,S,A={};A.cancelScroll=function(e){cancelAnimationFrame(S),S=null,e||h("scrollCancel",g)},A.animateScroll=function(n,i,r){var a=o(g||t,r||{}),u="[object Number]"===Object.prototype.toString.call(n),p=u||!n.tagName?null:n;if(u||p){var v=e.pageYOffset;a.header&&!y&&(y=document.querySelector(a.header)),E||(E=m(y));var w,b,C,O=u?n:l(p,E,parseInt("function"==typeof a.offset?a.offset(n,i):a.offset,10),a.clip),I=O-v,q=s(),F=0,L=function(t,o){var r=e.pageYOffset;if(t==o||r==o||(v<o&&e.innerHeight+r)>=q)return A.cancelScroll(!0),f(n,o,u),h("scrollStop",a,n,i),w=null,S=null,!0},H=function(t){w||(w=t),F+=t-w,b=F/parseInt(a.speed,10),b=b>1?1:b,C=v+I*c(a,b),e.scrollTo(0,Math.floor(C)),L(C,O)||(S=e.requestAnimationFrame(H),w=t)};0===e.pageYOffset&&e.scrollTo(0,0),d(n,u,a),h("scrollStart",a,n,i),A.cancelScroll(!0),e.requestAnimationFrame(H)}};var C=function(t){if(!i()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&"closest"in t.target&&(w=t.target.closest(r))&&"a"===w.tagName.toLowerCase()&&!t.target.closest(g.ignore)&&w.hostname===e.location.hostname&&w.pathname===e.location.pathname&&/#/.test(w.href)){var n=u(a(w.hash)),o=g.topOnEmptyHash&&"#"===n?document.documentElement:document.querySelector(n);o=o||"#top"!==n?o:document.documentElement,o&&(t.preventDefault(),A.animateScroll(o,w))}},O=function(e){if(null!==history.state&&history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(g)&&history.state.anchor){var t=document.querySelector(u(a(history.state.anchor)));t&&A.animateScroll(t,null,{updateURL:!1})}},I=function(e){b||(b=setTimeout((function(){b=null,E=m(y)}),66))};return A.destroy=function(){g&&(document.removeEventListener("click",C,!1),e.removeEventListener("resize",I,!1),e.removeEventListener("popstate",O,!1),A.cancelScroll(),g=null,v=null,w=null,y=null,E=null,b=null,S=null)},A.init=function(i){if(!n())throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";A.destroy(),g=o(t,i||{}),y=g.header?document.querySelector(g.header):null,E=m(y),document.addEventListener("click",C,!1),y&&e.addEventListener("resize",I,!1),g.updateURL&&g.popstate&&e.addEventListener("popstate",O,!1)},A.init(p),A}}));
\ No newline at end of file
diff --git a/package.json b/package.json
index 8ebf7ad..542e980 100755
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
 	"name": "smooth-scroll",
-	"version": "14.2.0",
+	"version": "14.2.1",
 	"description": "Animate scrolling to anchor links",
 	"main": "./dist/smooth-scroll.polyfills.min.js",
 	"author": {

From 5159523e4bf5ea457fd620e5cafcf833466b2b35 Mon Sep 17 00:00:00 2001
From: cferdinandi <chris@gomakethings.com>
Date: Sun, 11 Nov 2018 07:35:58 -0500
Subject: [PATCH 17/51] Changed the way speed and duration are calculated

---
 .github/contributing.md                  |   2 +-
 .github/issue_template.md                |   4 +-
 README.md                                | 180 +++++++++++++----------
 dist/smooth-scroll.js                    |  78 +++++-----
 dist/smooth-scroll.min.js                |   4 +-
 dist/smooth-scroll.polyfills.js          |  78 +++++-----
 dist/smooth-scroll.polyfills.min.js      |   4 +-
 docs/dist/smooth-scroll.js               |  78 +++++-----
 docs/dist/smooth-scroll.min.js           |   4 +-
 docs/dist/smooth-scroll.polyfills.js     |  78 +++++-----
 docs/dist/smooth-scroll.polyfills.min.js |   4 +-
 docs/index.html                          |  54 +++----
 docs/speed.html                          | 100 +++++++++++++
 package.json                             |   2 +-
 src/docs/_templates/_footer.html         |  54 +++----
 src/docs/speed.md                        |  25 ++++
 src/js/smooth-scroll.js                  |  76 +++++-----
 17 files changed, 513 insertions(+), 312 deletions(-)
 mode change 100644 => 100755 dist/smooth-scroll.polyfills.js
 mode change 100644 => 100755 dist/smooth-scroll.polyfills.min.js
 mode change 100644 => 100755 docs/dist/smooth-scroll.polyfills.js
 mode change 100644 => 100755 docs/dist/smooth-scroll.polyfills.min.js
 create mode 100644 docs/speed.html
 create mode 100644 src/docs/speed.md

diff --git a/.github/contributing.md b/.github/contributing.md
index a9e4594..6cf9168 100644
--- a/.github/contributing.md
+++ b/.github/contributing.md
@@ -11,7 +11,7 @@ Report bugs, ask questions, and request features using [GitHub Issues](https://g
 	- Clearly demonstrate the bug or issue.
 	- Include the bare minimum HTML, CSS, and JavaScript required to demonstrate the bug.
 	- A link to your production site is **not** a reduced test case.
-	- You can create one by [forking this JSFiddle](https://jsfiddle.net/cferdinandi/87v3pqp0/).
+	- You can create one by [forking this CodePen](https://codepen.io/cferdinandi/pen/RqGLpz).
 3. The browser and OS that you're using.
 
 Duplicates and issues without a reduced test case may be closed without comment.
\ No newline at end of file
diff --git a/.github/issue_template.md b/.github/issue_template.md
index e92cc83..664bfaa 100755
--- a/.github/issue_template.md
+++ b/.github/issue_template.md
@@ -1,3 +1,3 @@
-<!-- Thanks for submitting an issue! All bug reports and problem issues require a **reduced test case**. Create one forking the JSFiddle linked below. See the guidelines link above for more details. -->
+<!-- Thanks for submitting an issue! All bug reports and problem issues require a **reduced test case**. Create one forking the CodePen linked below. See the guidelines link above for more details. -->
 
-**Test case:** https://jsfiddle.net/cferdinandi/87v3pqp0/
\ No newline at end of file
+**Test case:** https://codepen.io/cferdinandi/pen/RqGLpz
\ No newline at end of file
diff --git a/README.md b/README.md
index 9211a28..516ff16 100755
--- a/README.md
+++ b/README.md
@@ -1,7 +1,7 @@
 # Smooth Scroll [![Build Status](https://travis-ci.org/cferdinandi/smooth-scroll.svg)](https://travis-ci.org/cferdinandi/smooth-scroll)
 A lightweight script to animate scrolling to anchor links. Smooth Scroll works great with [Gumshoe](https://github.com/cferdinandi/gumshoe).
 
-[Demo](http://cferdinandi.github.io/smooth-scroll/)
+[View the Demo](https://codepen.io/cferdinandi/pen/wQzrdM)
 
 
 <hr>
@@ -11,7 +11,6 @@ A lightweight script to animate scrolling to anchor links. Smooth Scroll works g
 <hr>
 
 
-
 ## Getting Started
 
 Compiled and production-ready code can be found in the `dist` directory. The `src` directory contains development code.
@@ -74,38 +73,83 @@ In the footer of your page, after the content, initialize Smooth Scroll by passi
 ***Note:*** *The `a[href*="#"]` selector will apply Smooth Scroll to all anchor links. You can selectively target links using any other selector(s) you'd like. Smooth Scroll accepts multiple selectors as a comma separated list. Example: `'.js-scroll, [data-scroll], #some-link'`.*
 
 
-## ES6 Modules
 
-Smooth Scroll does not have a default export, but does support CommonJS and can be used with native ES6 module imports.
+## Scroll Speed
+
+Smooth Scroll allows you to adjust the speed of your animations with the `speed` option.
+
+This a number representing the amount of time in milliseconds that it should take to scroll 1000px. Scroll distances shorter than that will take less time, and scroll distances longer than that will take more time. The default is 300ms.
 
 ```js
-import('/path/to/smooth-scroll.polyfills.min.js')
-	.then(function () {
-		var scroll = new SmoothScroll('a[href*="#"]');
-	});
+var scroll = new SmoothScroll('a[href*="#"]', {
+	speed: 300
+});
 ```
 
-It uses a UMD pattern, and should also work in most major module bundlers and package managers.
+If you want all of your animations to take exactly the same amount of time (the value you set for `speed`), set the `speedAsDuration` option to `true`.
 
+```js
+// All animations will take exactly 500ms
+var scroll = new SmoothScroll('a[href*="#"]', {
+	speed: 500,
+	speedAsDuration: true
+});
+```
 
 
-## Working with the Source Files
+## Easing Options
 
-If you would prefer, you can work with the development code in the `src` directory using the included [Gulp build system](http://gulpjs.com/). This compiles, lints, and minifies code.
+Smooth Scroll comes with about a dozen common easing patterns. [Here's a demo of the different patterns.](https://codepen.io/cferdinandi/pen/jQMGaB)
 
-### Dependencies
-Make sure these are installed first.
+**Linear**
+*Moves at the same speed from start to finish.*
 
-* [Node.js](http://nodejs.org)
-* [Gulp](http://gulpjs.com) `sudo npm install -g gulp`
+- `Linear`
 
-### Quick Start
 
-1. In bash/terminal/command line, `cd` into your project directory.
-2. Run `npm install` to install required files.
-3. When it's done installing, run one of the task runners to get going:
-	* `gulp` manually compiles files.
-	* `gulp watch` automatically compiles files when changes are made and applies changes using [LiveReload](http://livereload.com/).
+**Ease-In**
+*Gradually increases in speed.*
+
+- `easeInQuad`
+- `easeInCubic`
+- `easeInQuart`
+- `easeInQuint`
+
+
+**Ease-In-Out**
+*Gradually increases in speed, peaks, and then gradually slows down.*
+
+- `easeInOutQuad`
+- `easeInOutCubic`
+- `easeInOutQuart`
+- `easeInOutQuint`
+
+
+**Ease-Out**
+*Gradually decreases in speed.*
+
+- `easeOutQuad`
+- `easeOutCubic`
+- `easeOutQuart`
+- `easeOutQuint`
+
+
+You can also pass in your own custom easing pattern [using the `customEasing` option](#global-settings).
+
+```js
+var scroll = new SmoothScroll('a[href*="#"]', {
+	// Function. Custom easing pattern
+	// If this is set to anything other than null, will override the easing option above
+	customEasing: function (time) {
+
+		// return <your formulate with time as a multiplier>
+
+		// Example: easeInOut Quad
+		return time < 0.5 ? 2 * time * time : -1 + (4 - 2 * time) * time;
+
+	}
+});
+```
 
 
 
@@ -125,8 +169,11 @@ var scroll = new SmoothScroll('a[href*="#"]', {
 	header: null, // Selector for fixed headers (must be a valid CSS selector)
 	topOnEmptyHash: true, // Scroll to the top of the page for links with href="#"
 
-	// Speed & Easing
-	speed: 500, // Integer. How fast to complete the scroll in milliseconds
+	// Speed & Duration
+	speed: 500, // Integer. Amount of time in milliseconds it should take to scroll 1000px
+	speedAsDuration: false, // If true, use speed as the total duration of the scroll animation
+	durationMax: null, // Integer. The maximum amount of time the scroll animation should take
+	durationMin: null, // Integer. The minimum amount of time the scroll animation should take
 	clip: true, // If true, adjust scroll distance to prevent abrupt stops near the bottom of the page
 	offset: function (anchor, toggle) {
 
@@ -141,6 +188,8 @@ var scroll = new SmoothScroll('a[href*="#"]', {
 		}
 
 	},
+
+	// Easing
 	easing: 'easeInOutCubic', // Easing pattern to use
 	customEasing: function (time) {
 
@@ -164,44 +213,6 @@ var scroll = new SmoothScroll('a[href*="#"]', {
 });
 ```
 
-#### Easing Options
-
-Some common easing patterns are included by default, but you can also pass in your own custom easing pattern using the `customEasing` option noted above.
-
-**Linear**
-*Moves at the same speed from start to finish.*
-
-* `Linear`
-
-
-**Ease-In**
-*Gradually increases in speed.*
-
-* `easeInQuad`
-* `easeInCubic`
-* `easeInQuart`
-* `easeInQuint`
-
-
-**Ease-In-Out**
-*Gradually increases in speed, peaks, and then gradually slows down.*
-
-* `easeInOutQuad`
-* `easeInOutCubic`
-* `easeInOutQuart`
-* `easeInOutQuint`
-
-
-**Ease-Out**
-*Gradually decreases in speed.*
-
-* `easeOutQuad`
-* `easeOutCubic`
-* `easeOutQuart`
-* `easeOutQuint`
-
-Learn more about the different easing patterns and what they do at [easings.net](http://easings.net/).
-
 ### Custom Events
 
 Smooth Scroll emits three custom events:
@@ -233,7 +244,7 @@ document.addEventListener('scrollStop', logScrollEvent, false);
 document.addEventListener('scrollCancel', logScrollEvent, false);
 ```
 
-### Use Smooth Scroll events in your own scripts
+### Methods
 
 You can also call Smooth Scroll's methods in your own scripts.
 
@@ -321,34 +332,31 @@ If you have multiple fixed headers, pass in the last one in the markup.
 ```
 
 
-## Migrating to Smooth Scroll 14 from Older Versions
-
-### New Features
 
-- You can now choose not to update the URL as a native feature. No more hacks using the API.
-- You can choose not to scroll to top on `href="#"`, providing more flexibility for some CMS implementations.
-- Custom events let you more easily hook into Smooth Scroll from other scripts.
-- The feature test is scoped to a function, allowing for server-side implementations.
-- The loss of styling with IDs experienced in earlier versions has been eliminated.
-- The `anchor` and `toggle` elements are now passed into the `offset()` function, allowing for more customization [v14.1.0 and up].
+## Working with the Source Files
 
-### Breaking Changes
+If you would prefer, you can work with the development code in the `src` directory using the included [Gulp build system](http://gulpjs.com/). This compiles, lints, and minifies code.
 
-- Callback methods have been removed in favor of events.
+### Dependencies
+Make sure these are installed first.
 
+* [Node.js](http://nodejs.org)
+* [Gulp](http://gulpjs.com) `sudo npm install -g gulp`
 
+### Quick Start
 
-## Browser Compatibility
+1. In bash/terminal/command line, `cd` into your project directory.
+2. Run `npm install` to install required files.
+3. When it's done installing, run one of the task runners to get going:
+	* `gulp` manually compiles files.
+	* `gulp watch` automatically compiles files when changes are made and applies changes using [LiveReload](http://livereload.com/).
 
-Smooth Scroll works in all modern browsers, and IE 9 and above.
 
-Smooth Scroll is built with modern JavaScript APIs, and uses progressive enhancement. If the JavaScript file fails to load, or if your site is viewed on older and less capable browsers, anchor links will jump the way they normally would.
 
-### Polyfills
 
-Support back to IE9 requires polyfills for `closest()`, `requestAnimationFrame()`, and `CustomEvent()`. Without them, support starts with Edge.
+## Migrating to Smooth Scroll 15 from Older Versions
 
-Use the included polyfills version of Smooth Scroll, or include your own.
+Scroll duration now varies based on distance traveled. If you want to maintain the old scroll animation duration behavior, set the `speedAsDuration` option to `true`.
 
 
 
@@ -370,6 +378,20 @@ Most browsers instantly jump you to the anchor location when you load a page. Yo
 
 
 
+## Browser Compatibility
+
+Smooth Scroll works in all modern browsers, and IE 9 and above.
+
+Smooth Scroll is built with modern JavaScript APIs, and uses progressive enhancement. If the JavaScript file fails to load, or if your site is viewed on older and less capable browsers, anchor links will jump the way they normally would.
+
+### Polyfills
+
+Support back to IE9 requires polyfills for `closest()`, `requestAnimationFrame()`, and `CustomEvent()`. Without them, support starts with Edge.
+
+Use the included polyfills version of Smooth Scroll, or include your own.
+
+
+
 ## License
 
 The code is available under the [MIT License](LICENSE.md).
\ No newline at end of file
diff --git a/dist/smooth-scroll.js b/dist/smooth-scroll.js
index 74ce7cc..958f66e 100755
--- a/dist/smooth-scroll.js
+++ b/dist/smooth-scroll.js
@@ -1,5 +1,5 @@
 /*!
- * smooth-scroll v14.2.1: Animate scrolling to anchor links
+ * smooth-scroll v15.0.0: Animate scrolling to anchor links
  * (c) 2018 Chris Ferdinandi
  * MIT License
  * http://github.com/cferdinandi/smooth-scroll
@@ -24,15 +24,21 @@
 	//
 
 	var defaults = {
+
 		// Selectors
 		ignore: '[data-scroll-ignore]',
 		header: null,
 		topOnEmptyHash: true,
 
-		// Speed & Easing
+		// Speed & Duration
 		speed: 500,
+		speedAsDuration: false,
+		durationMax: null,
+		durationMin: null,
 		clip: true,
 		offset: 0,
+
+		// Easing
 		easing: 'easeInOutCubic',
 		customEasing: null,
 
@@ -42,6 +48,7 @@
 
 		// Custom Events
 		emitEvents: true
+
 	};
 
 
@@ -63,31 +70,19 @@
 	};
 
 	/**
-	 * Merge two or more objects. Returns a new object.
-	 * @param {Object}   objects  The objects to merge together
-	 * @returns {Object}          Merged values of defaults and options
+	 * Merge two or more objects together.
+	 * @param   {Object}   objects  The objects to merge together
+	 * @returns {Object}            Merged values of defaults and options
 	 */
 	var extend = function () {
-
-		// Variables
-		var extended = {};
-
-		// Merge the object into the extended object
-		var merge = function (obj) {
-			for (var prop in obj) {
-				if (obj.hasOwnProperty(prop)) {
-					extended[prop] = obj[prop];
-				}
+		var merged = {};
+		Array.prototype.forEach.call(arguments, (function (obj) {
+			for (var key in obj) {
+				if (!obj.hasOwnProperty(key)) return;
+				merged[key] = obj[key];
 			}
-		};
-
-		// Loop through each object and conduct a merge
-		for (var i = 0; i < arguments.length; i++) {
-			merge(arguments[i]);
-		}
-
-		return extended;
-
+		}));
+		return merged;
 	};
 
 	/**
@@ -286,6 +281,19 @@
 		return !header ? 0 : (getHeight(header) + header.offsetTop);
 	};
 
+	/**
+	 * Calculate the speed to use for the animation
+	 * @param  {Number} distance The distance to travel
+	 * @param  {Object} settings The plugin settings
+	 * @return {Number}          How fast to animate
+	 */
+	var getSpeed = function (distance, settings) {
+		var speed = settings.speedAsDuration ? settings.speed : Math.abs(distance / 1000 * settings.speed);
+		if (settings.durationMax && speed > settings.durationMax) return settings.durationMax;
+		if (settings.durationMin && speed < settings.durationMin) return settings.durationMin;
+		return speed;
+	};
+
 	/**
 	 * Update the URL
 	 * @param  {Node}    anchor  The anchor that was scrolled to
@@ -396,25 +404,26 @@
 		smoothScroll.animateScroll = function (anchor, toggle, options) {
 
 			// Local settings
-			var animateSettings = extend(settings || defaults, options || {}); // Merge user options with defaults
+			var _settings = extend(settings || defaults, options || {}); // Merge user options with defaults
 
 			// Selectors and variables
 			var isNum = Object.prototype.toString.call(anchor) === '[object Number]' ? true : false;
 			var anchorElem = isNum || !anchor.tagName ? null : anchor;
 			if (!isNum && !anchorElem) return;
 			var startLocation = window.pageYOffset; // Current location on the page
-			if (animateSettings.header && !fixedHeader) {
+			if (_settings.header && !fixedHeader) {
 				// Get the fixed header if not already set
-				fixedHeader = document.querySelector(animateSettings.header);
+				fixedHeader = document.querySelector(_settings.header);
 			}
 			if (!headerHeight) {
 				// Get the height of a fixed header if one exists and not already set
 				headerHeight = getHeaderHeight(fixedHeader);
 			}
-			var endLocation = isNum ? anchor : getEndLocation(anchorElem, headerHeight, parseInt((typeof animateSettings.offset === 'function' ? animateSettings.offset(anchor, toggle) : animateSettings.offset), 10), animateSettings.clip); // Location to scroll to
+			var endLocation = isNum ? anchor : getEndLocation(anchorElem, headerHeight, parseInt((typeof _settings.offset === 'function' ? _settings.offset(anchor, toggle) : _settings.offset), 10), _settings.clip); // Location to scroll to
 			var distance = endLocation - startLocation; // distance to travel
 			var documentHeight = getDocumentHeight();
 			var timeLapsed = 0;
+			var speed = getSpeed(distance, _settings);
 			var start, percentage, position;
 
 			/**
@@ -438,7 +447,7 @@
 					adjustFocus(anchor, endLocation, isNum);
 
 					// Emit a custom event
-					emitEvent('scrollStop', animateSettings, anchor, toggle);
+					emitEvent('scrollStop', _settings, anchor, toggle);
 
 					// Reset start
 					start = null;
@@ -455,9 +464,9 @@
 			var loopAnimateScroll = function (timestamp) {
 				if (!start) { start = timestamp; }
 				timeLapsed += timestamp - start;
-				percentage = (timeLapsed / parseInt(animateSettings.speed, 10));
+				percentage = (timeLapsed / parseInt(speed, 10));
 				percentage = (percentage > 1) ? 1 : percentage;
-				position = startLocation + (distance * easingPattern(animateSettings, percentage));
+				position = startLocation + (distance * easingPattern(_settings, percentage));
 				window.scrollTo(0, Math.floor(position));
 				if (!stopAnimateScroll(position, endLocation)) {
 					animationInterval = window.requestAnimationFrame(loopAnimateScroll);
@@ -474,10 +483,10 @@
 			}
 
 			// Update the URL
-			updateURL(anchor, isNum, animateSettings);
+			updateURL(anchor, isNum, _settings);
 
 			// Emit a custom event
-			emitEvent('scrollStart', animateSettings, anchor, toggle);
+			emitEvent('scrollStart', _settings, anchor, toggle);
 
 			// Start scrolling animation
 			smoothScroll.cancelScroll(true);
@@ -525,9 +534,10 @@
 		 * Animate scroll on popstate events
 		 */
 		var popstateHandler = function (event) {
+
 			// Stop if history.state doesn't exist (ex. if clicking on a broken anchor link).
 			// fixes `Cannot read property 'smoothScroll' of null` error getting thrown.
-			if (history.state === null) return; 
+			if (history.state === null) return;
 
 			// Only run if state is a popstate record for this instantiation
 			if (!history.state.smoothScroll || history.state.smoothScroll !== JSON.stringify(settings)) return;
diff --git a/dist/smooth-scroll.min.js b/dist/smooth-scroll.min.js
index f4ba547..c38b100 100755
--- a/dist/smooth-scroll.min.js
+++ b/dist/smooth-scroll.min.js
@@ -1,2 +1,2 @@
-/*! smooth-scroll v14.2.1 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
-!(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},n=function(){return"querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype},o=function(){for(var e={},t=0;t<arguments.length;t++)!(function(t){for(var n in t)t.hasOwnProperty(n)&&(e[n]=t[n])})(arguments[t]);return e},r=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)},a=function(t){return parseInt(e.getComputedStyle(t).height,10)},i=function(e){var t;try{t=decodeURIComponent(e)}catch(n){t=e}return t},c=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,r=-1,a="",i=n.charCodeAt(0);++r<o;){if(0===(t=n.charCodeAt(r)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===r&&t>=48&&t<=57||1===r&&t>=48&&t<=57&&45===i?a+="\\"+t.toString(16)+" ":a+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(r):"\\"+n.charAt(r)}var c;try{c=decodeURIComponent("#"+a)}catch(e){c="#"+a}return c},u=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(t,n,o,r){var a=0;if(t.offsetParent)do{a+=t.offsetTop,t=t.offsetParent}while(t);return a=Math.max(a-n-o,0),r&&(a=Math.min(a,s()-e.innerHeight)),a},d=function(e){return e?a(e)+e.offsetTop:0},f=function(e,t,n){t||history.pushState&&n.updateURL&&history.pushState({smoothScroll:JSON.stringify(n),anchor:e.id},document.title,e===document.documentElement?"#top":"#"+e.id)},m=function(t,n,o){0===t&&document.body.focus(),o||(t.focus(),document.activeElement!==t&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},h=function(t,n,o,r){if(n.emitEvents&&"function"==typeof e.CustomEvent){var a=new CustomEvent(t,{bubbles:!0,detail:{anchor:o,toggle:r}});document.dispatchEvent(a)}};return function(a,p){var g,v,y,S,E,b,O,I={};I.cancelScroll=function(e){cancelAnimationFrame(O),O=null,e||h("scrollCancel",g)},I.animateScroll=function(n,r,a){var i=o(g||t,a||{}),c="[object Number]"===Object.prototype.toString.call(n),p=c||!n.tagName?null:n;if(c||p){var v=e.pageYOffset;i.header&&!S&&(S=document.querySelector(i.header)),E||(E=d(S));var y,b,C,w=c?n:l(p,E,parseInt("function"==typeof i.offset?i.offset(n,r):i.offset,10),i.clip),L=w-v,A=s(),H=0,q=function(t,o){var a=e.pageYOffset;if(t==o||a==o||(v<o&&e.innerHeight+a)>=A)return I.cancelScroll(!0),m(n,o,c),h("scrollStop",i,n,r),y=null,O=null,!0},Q=function(t){y||(y=t),H+=t-y,b=H/parseInt(i.speed,10),b=b>1?1:b,C=v+L*u(i,b),e.scrollTo(0,Math.floor(C)),q(C,w)||(O=e.requestAnimationFrame(Q),y=t)};0===e.pageYOffset&&e.scrollTo(0,0),f(n,c,i),h("scrollStart",i,n,r),I.cancelScroll(!0),e.requestAnimationFrame(Q)}};var C=function(t){if(!r()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&"closest"in t.target&&(y=t.target.closest(a))&&"a"===y.tagName.toLowerCase()&&!t.target.closest(g.ignore)&&y.hostname===e.location.hostname&&y.pathname===e.location.pathname&&/#/.test(y.href)){var n=c(i(y.hash)),o=g.topOnEmptyHash&&"#"===n?document.documentElement:document.querySelector(n);o=o||"#top"!==n?o:document.documentElement,o&&(t.preventDefault(),I.animateScroll(o,y))}},w=function(e){if(null!==history.state&&history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(g)&&history.state.anchor){var t=document.querySelector(c(i(history.state.anchor)));t&&I.animateScroll(t,null,{updateURL:!1})}},L=function(e){b||(b=setTimeout((function(){b=null,E=d(S)}),66))};return I.destroy=function(){g&&(document.removeEventListener("click",C,!1),e.removeEventListener("resize",L,!1),e.removeEventListener("popstate",w,!1),I.cancelScroll(),g=null,v=null,y=null,S=null,E=null,b=null,O=null)},I.init=function(r){if(!n())throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";I.destroy(),g=o(t,r||{}),S=g.header?document.querySelector(g.header):null,E=d(S),document.addEventListener("click",C,!1),S&&e.addEventListener("resize",L,!1),g.updateURL&&g.popstate&&e.addEventListener("popstate",w,!1)},I.init(p),I}}));
\ No newline at end of file
+/*! smooth-scroll v15.0.0 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
+!(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,speedAsDuration:!1,durationMax:null,durationMin:null,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},n=function(){return"querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype},o=function(){var e={};return Array.prototype.forEach.call(arguments,(function(t){for(var n in t){if(!t.hasOwnProperty(n))return;e[n]=t[n]}})),e},r=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)},a=function(t){return parseInt(e.getComputedStyle(t).height,10)},i=function(e){var t;try{t=decodeURIComponent(e)}catch(n){t=e}return t},u=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,r=-1,a="",i=n.charCodeAt(0);++r<o;){if(0===(t=n.charCodeAt(r)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===r&&t>=48&&t<=57||1===r&&t>=48&&t<=57&&45===i?a+="\\"+t.toString(16)+" ":a+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(r):"\\"+n.charAt(r)}var u;try{u=decodeURIComponent("#"+a)}catch(e){u="#"+a}return u},c=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(t,n,o,r){var a=0;if(t.offsetParent)do{a+=t.offsetTop,t=t.offsetParent}while(t);return a=Math.max(a-n-o,0),r&&(a=Math.min(a,s()-e.innerHeight)),a},d=function(e){return e?a(e)+e.offsetTop:0},f=function(e,t){var n=t.speedAsDuration?t.speed:Math.abs(e/1e3*t.speed);return t.durationMax&&n>t.durationMax?t.durationMax:t.durationMin&&n<t.durationMin?t.durationMin:n},m=function(e,t,n){t||history.pushState&&n.updateURL&&history.pushState({smoothScroll:JSON.stringify(n),anchor:e.id},document.title,e===document.documentElement?"#top":"#"+e.id)},h=function(t,n,o){0===t&&document.body.focus(),o||(t.focus(),document.activeElement!==t&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},p=function(t,n,o,r){if(n.emitEvents&&"function"==typeof e.CustomEvent){var a=new CustomEvent(t,{bubbles:!0,detail:{anchor:o,toggle:r}});document.dispatchEvent(a)}};return function(a,g){var y,v,S,E,b,O,I,M={};M.cancelScroll=function(e){cancelAnimationFrame(I),I=null,e||p("scrollCancel",y)},M.animateScroll=function(n,r,a){var i=o(y||t,a||{}),u="[object Number]"===Object.prototype.toString.call(n),g=u||!n.tagName?null:n;if(u||g){var v=e.pageYOffset;i.header&&!E&&(E=document.querySelector(i.header)),b||(b=d(E));var S,O,A,C=u?n:l(g,b,parseInt("function"==typeof i.offset?i.offset(n,r):i.offset,10),i.clip),w=C-v,L=s(),H=0,q=f(w,i),x=function(t,o){var a=e.pageYOffset;if(t==o||a==o||(v<o&&e.innerHeight+a)>=L)return M.cancelScroll(!0),h(n,o,u),p("scrollStop",i,n,r),S=null,I=null,!0},Q=function(t){S||(S=t),H+=t-S,O=H/parseInt(q,10),O=O>1?1:O,A=v+w*c(i,O),e.scrollTo(0,Math.floor(A)),x(A,C)||(I=e.requestAnimationFrame(Q),S=t)};0===e.pageYOffset&&e.scrollTo(0,0),m(n,u,i),p("scrollStart",i,n,r),M.cancelScroll(!0),e.requestAnimationFrame(Q)}};var A=function(t){if(!r()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&"closest"in t.target&&(S=t.target.closest(a))&&"a"===S.tagName.toLowerCase()&&!t.target.closest(y.ignore)&&S.hostname===e.location.hostname&&S.pathname===e.location.pathname&&/#/.test(S.href)){var n=u(i(S.hash)),o=y.topOnEmptyHash&&"#"===n?document.documentElement:document.querySelector(n);o=o||"#top"!==n?o:document.documentElement,o&&(t.preventDefault(),M.animateScroll(o,S))}},C=function(e){if(null!==history.state&&history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(y)&&history.state.anchor){var t=document.querySelector(u(i(history.state.anchor)));t&&M.animateScroll(t,null,{updateURL:!1})}},w=function(e){O||(O=setTimeout((function(){O=null,b=d(E)}),66))};return M.destroy=function(){y&&(document.removeEventListener("click",A,!1),e.removeEventListener("resize",w,!1),e.removeEventListener("popstate",C,!1),M.cancelScroll(),y=null,v=null,S=null,E=null,b=null,O=null,I=null)},M.init=function(r){if(!n())throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";M.destroy(),y=o(t,r||{}),E=y.header?document.querySelector(y.header):null,b=d(E),document.addEventListener("click",A,!1),E&&e.addEventListener("resize",w,!1),y.updateURL&&y.popstate&&e.addEventListener("popstate",C,!1)},M.init(g),M}}));
\ No newline at end of file
diff --git a/dist/smooth-scroll.polyfills.js b/dist/smooth-scroll.polyfills.js
old mode 100644
new mode 100755
index 553531a..98262ed
--- a/dist/smooth-scroll.polyfills.js
+++ b/dist/smooth-scroll.polyfills.js
@@ -1,5 +1,5 @@
 /*!
- * smooth-scroll v14.2.1: Animate scrolling to anchor links
+ * smooth-scroll v15.0.0: Animate scrolling to anchor links
  * (c) 2018 Chris Ferdinandi
  * MIT License
  * http://github.com/cferdinandi/smooth-scroll
@@ -94,15 +94,21 @@ if (window.Element && !Element.prototype.closest) {
 	//
 
 	var defaults = {
+
 		// Selectors
 		ignore: '[data-scroll-ignore]',
 		header: null,
 		topOnEmptyHash: true,
 
-		// Speed & Easing
+		// Speed & Duration
 		speed: 500,
+		speedAsDuration: false,
+		durationMax: null,
+		durationMin: null,
 		clip: true,
 		offset: 0,
+
+		// Easing
 		easing: 'easeInOutCubic',
 		customEasing: null,
 
@@ -112,6 +118,7 @@ if (window.Element && !Element.prototype.closest) {
 
 		// Custom Events
 		emitEvents: true
+
 	};
 
 
@@ -133,31 +140,19 @@ if (window.Element && !Element.prototype.closest) {
 	};
 
 	/**
-	 * Merge two or more objects. Returns a new object.
-	 * @param {Object}   objects  The objects to merge together
-	 * @returns {Object}          Merged values of defaults and options
+	 * Merge two or more objects together.
+	 * @param   {Object}   objects  The objects to merge together
+	 * @returns {Object}            Merged values of defaults and options
 	 */
 	var extend = function () {
-
-		// Variables
-		var extended = {};
-
-		// Merge the object into the extended object
-		var merge = function (obj) {
-			for (var prop in obj) {
-				if (obj.hasOwnProperty(prop)) {
-					extended[prop] = obj[prop];
-				}
+		var merged = {};
+		Array.prototype.forEach.call(arguments, (function (obj) {
+			for (var key in obj) {
+				if (!obj.hasOwnProperty(key)) return;
+				merged[key] = obj[key];
 			}
-		};
-
-		// Loop through each object and conduct a merge
-		for (var i = 0; i < arguments.length; i++) {
-			merge(arguments[i]);
-		}
-
-		return extended;
-
+		}));
+		return merged;
 	};
 
 	/**
@@ -356,6 +351,19 @@ if (window.Element && !Element.prototype.closest) {
 		return !header ? 0 : (getHeight(header) + header.offsetTop);
 	};
 
+	/**
+	 * Calculate the speed to use for the animation
+	 * @param  {Number} distance The distance to travel
+	 * @param  {Object} settings The plugin settings
+	 * @return {Number}          How fast to animate
+	 */
+	var getSpeed = function (distance, settings) {
+		var speed = settings.speedAsDuration ? settings.speed : Math.abs(distance / 1000 * settings.speed);
+		if (settings.durationMax && speed > settings.durationMax) return settings.durationMax;
+		if (settings.durationMin && speed < settings.durationMin) return settings.durationMin;
+		return speed;
+	};
+
 	/**
 	 * Update the URL
 	 * @param  {Node}    anchor  The anchor that was scrolled to
@@ -466,25 +474,26 @@ if (window.Element && !Element.prototype.closest) {
 		smoothScroll.animateScroll = function (anchor, toggle, options) {
 
 			// Local settings
-			var animateSettings = extend(settings || defaults, options || {}); // Merge user options with defaults
+			var _settings = extend(settings || defaults, options || {}); // Merge user options with defaults
 
 			// Selectors and variables
 			var isNum = Object.prototype.toString.call(anchor) === '[object Number]' ? true : false;
 			var anchorElem = isNum || !anchor.tagName ? null : anchor;
 			if (!isNum && !anchorElem) return;
 			var startLocation = window.pageYOffset; // Current location on the page
-			if (animateSettings.header && !fixedHeader) {
+			if (_settings.header && !fixedHeader) {
 				// Get the fixed header if not already set
-				fixedHeader = document.querySelector(animateSettings.header);
+				fixedHeader = document.querySelector(_settings.header);
 			}
 			if (!headerHeight) {
 				// Get the height of a fixed header if one exists and not already set
 				headerHeight = getHeaderHeight(fixedHeader);
 			}
-			var endLocation = isNum ? anchor : getEndLocation(anchorElem, headerHeight, parseInt((typeof animateSettings.offset === 'function' ? animateSettings.offset(anchor, toggle) : animateSettings.offset), 10), animateSettings.clip); // Location to scroll to
+			var endLocation = isNum ? anchor : getEndLocation(anchorElem, headerHeight, parseInt((typeof _settings.offset === 'function' ? _settings.offset(anchor, toggle) : _settings.offset), 10), _settings.clip); // Location to scroll to
 			var distance = endLocation - startLocation; // distance to travel
 			var documentHeight = getDocumentHeight();
 			var timeLapsed = 0;
+			var speed = getSpeed(distance, _settings);
 			var start, percentage, position;
 
 			/**
@@ -508,7 +517,7 @@ if (window.Element && !Element.prototype.closest) {
 					adjustFocus(anchor, endLocation, isNum);
 
 					// Emit a custom event
-					emitEvent('scrollStop', animateSettings, anchor, toggle);
+					emitEvent('scrollStop', _settings, anchor, toggle);
 
 					// Reset start
 					start = null;
@@ -525,9 +534,9 @@ if (window.Element && !Element.prototype.closest) {
 			var loopAnimateScroll = function (timestamp) {
 				if (!start) { start = timestamp; }
 				timeLapsed += timestamp - start;
-				percentage = (timeLapsed / parseInt(animateSettings.speed, 10));
+				percentage = (timeLapsed / parseInt(speed, 10));
 				percentage = (percentage > 1) ? 1 : percentage;
-				position = startLocation + (distance * easingPattern(animateSettings, percentage));
+				position = startLocation + (distance * easingPattern(_settings, percentage));
 				window.scrollTo(0, Math.floor(position));
 				if (!stopAnimateScroll(position, endLocation)) {
 					animationInterval = window.requestAnimationFrame(loopAnimateScroll);
@@ -544,10 +553,10 @@ if (window.Element && !Element.prototype.closest) {
 			}
 
 			// Update the URL
-			updateURL(anchor, isNum, animateSettings);
+			updateURL(anchor, isNum, _settings);
 
 			// Emit a custom event
-			emitEvent('scrollStart', animateSettings, anchor, toggle);
+			emitEvent('scrollStart', _settings, anchor, toggle);
 
 			// Start scrolling animation
 			smoothScroll.cancelScroll(true);
@@ -595,9 +604,10 @@ if (window.Element && !Element.prototype.closest) {
 		 * Animate scroll on popstate events
 		 */
 		var popstateHandler = function (event) {
+
 			// Stop if history.state doesn't exist (ex. if clicking on a broken anchor link).
 			// fixes `Cannot read property 'smoothScroll' of null` error getting thrown.
-			if (history.state === null) return; 
+			if (history.state === null) return;
 
 			// Only run if state is a popstate record for this instantiation
 			if (!history.state.smoothScroll || history.state.smoothScroll !== JSON.stringify(settings)) return;
diff --git a/dist/smooth-scroll.polyfills.min.js b/dist/smooth-scroll.polyfills.min.js
old mode 100644
new mode 100755
index 4ba1334..cefa87e
--- a/dist/smooth-scroll.polyfills.min.js
+++ b/dist/smooth-scroll.polyfills.min.js
@@ -1,2 +1,2 @@
-/*! smooth-scroll v14.2.1 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
-window.Element&&!Element.prototype.closest&&(Element.prototype.closest=function(e){var t,n=(this.document||this.ownerDocument).querySelectorAll(e),o=this;do{for(t=n.length;--t>=0&&n.item(t)!==o;);}while(t<0&&(o=o.parentElement));return o}),(function(){function e(e,t){t=t||{bubbles:!1,cancelable:!1,detail:void 0};var n=document.createEvent("CustomEvent");return n.initCustomEvent(e,t.bubbles,t.cancelable,t.detail),n}if("function"==typeof window.CustomEvent)return!1;e.prototype=window.Event.prototype,window.CustomEvent=e})(),(function(){for(var e=0,t=["ms","moz","webkit","o"],n=0;n<t.length&&!window.requestAnimationFrame;++n)window.requestAnimationFrame=window[t[n]+"RequestAnimationFrame"],window.cancelAnimationFrame=window[t[n]+"CancelAnimationFrame"]||window[t[n]+"CancelRequestAnimationFrame"];window.requestAnimationFrame||(window.requestAnimationFrame=function(t,n){var o=(new Date).getTime(),i=Math.max(0,16-(o-e)),r=window.setTimeout((function(){t(o+i)}),i);return e=o+i,r}),window.cancelAnimationFrame||(window.cancelAnimationFrame=function(e){clearTimeout(e)})})(),(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},n=function(){return"querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype},o=function(){for(var e={},t=0;t<arguments.length;t++)!(function(t){for(var n in t)t.hasOwnProperty(n)&&(e[n]=t[n])})(arguments[t]);return e},i=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)},r=function(t){return parseInt(e.getComputedStyle(t).height,10)},a=function(e){var t;try{t=decodeURIComponent(e)}catch(n){t=e}return t},u=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,i=-1,r="",a=n.charCodeAt(0);++i<o;){if(0===(t=n.charCodeAt(i)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===i&&t>=48&&t<=57||1===i&&t>=48&&t<=57&&45===a?r+="\\"+t.toString(16)+" ":r+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(i):"\\"+n.charAt(i)}var u;try{u=decodeURIComponent("#"+r)}catch(e){u="#"+r}return u},c=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(t,n,o,i){var r=0;if(t.offsetParent)do{r+=t.offsetTop,t=t.offsetParent}while(t);return r=Math.max(r-n-o,0),i&&(r=Math.min(r,s()-e.innerHeight)),r},m=function(e){return e?r(e)+e.offsetTop:0},d=function(e,t,n){t||history.pushState&&n.updateURL&&history.pushState({smoothScroll:JSON.stringify(n),anchor:e.id},document.title,e===document.documentElement?"#top":"#"+e.id)},f=function(t,n,o){0===t&&document.body.focus(),o||(t.focus(),document.activeElement!==t&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},h=function(t,n,o,i){if(n.emitEvents&&"function"==typeof e.CustomEvent){var r=new CustomEvent(t,{bubbles:!0,detail:{anchor:o,toggle:i}});document.dispatchEvent(r)}};return function(r,p){var g,v,w,y,E,b,S,A={};A.cancelScroll=function(e){cancelAnimationFrame(S),S=null,e||h("scrollCancel",g)},A.animateScroll=function(n,i,r){var a=o(g||t,r||{}),u="[object Number]"===Object.prototype.toString.call(n),p=u||!n.tagName?null:n;if(u||p){var v=e.pageYOffset;a.header&&!y&&(y=document.querySelector(a.header)),E||(E=m(y));var w,b,C,O=u?n:l(p,E,parseInt("function"==typeof a.offset?a.offset(n,i):a.offset,10),a.clip),I=O-v,q=s(),F=0,L=function(t,o){var r=e.pageYOffset;if(t==o||r==o||(v<o&&e.innerHeight+r)>=q)return A.cancelScroll(!0),f(n,o,u),h("scrollStop",a,n,i),w=null,S=null,!0},H=function(t){w||(w=t),F+=t-w,b=F/parseInt(a.speed,10),b=b>1?1:b,C=v+I*c(a,b),e.scrollTo(0,Math.floor(C)),L(C,O)||(S=e.requestAnimationFrame(H),w=t)};0===e.pageYOffset&&e.scrollTo(0,0),d(n,u,a),h("scrollStart",a,n,i),A.cancelScroll(!0),e.requestAnimationFrame(H)}};var C=function(t){if(!i()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&"closest"in t.target&&(w=t.target.closest(r))&&"a"===w.tagName.toLowerCase()&&!t.target.closest(g.ignore)&&w.hostname===e.location.hostname&&w.pathname===e.location.pathname&&/#/.test(w.href)){var n=u(a(w.hash)),o=g.topOnEmptyHash&&"#"===n?document.documentElement:document.querySelector(n);o=o||"#top"!==n?o:document.documentElement,o&&(t.preventDefault(),A.animateScroll(o,w))}},O=function(e){if(null!==history.state&&history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(g)&&history.state.anchor){var t=document.querySelector(u(a(history.state.anchor)));t&&A.animateScroll(t,null,{updateURL:!1})}},I=function(e){b||(b=setTimeout((function(){b=null,E=m(y)}),66))};return A.destroy=function(){g&&(document.removeEventListener("click",C,!1),e.removeEventListener("resize",I,!1),e.removeEventListener("popstate",O,!1),A.cancelScroll(),g=null,v=null,w=null,y=null,E=null,b=null,S=null)},A.init=function(i){if(!n())throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";A.destroy(),g=o(t,i||{}),y=g.header?document.querySelector(g.header):null,E=m(y),document.addEventListener("click",C,!1),y&&e.addEventListener("resize",I,!1),g.updateURL&&g.popstate&&e.addEventListener("popstate",O,!1)},A.init(p),A}}));
\ No newline at end of file
+/*! smooth-scroll v15.0.0 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
+window.Element&&!Element.prototype.closest&&(Element.prototype.closest=function(e){var t,n=(this.document||this.ownerDocument).querySelectorAll(e),o=this;do{for(t=n.length;--t>=0&&n.item(t)!==o;);}while(t<0&&(o=o.parentElement));return o}),(function(){function e(e,t){t=t||{bubbles:!1,cancelable:!1,detail:void 0};var n=document.createEvent("CustomEvent");return n.initCustomEvent(e,t.bubbles,t.cancelable,t.detail),n}if("function"==typeof window.CustomEvent)return!1;e.prototype=window.Event.prototype,window.CustomEvent=e})(),(function(){for(var e=0,t=["ms","moz","webkit","o"],n=0;n<t.length&&!window.requestAnimationFrame;++n)window.requestAnimationFrame=window[t[n]+"RequestAnimationFrame"],window.cancelAnimationFrame=window[t[n]+"CancelAnimationFrame"]||window[t[n]+"CancelRequestAnimationFrame"];window.requestAnimationFrame||(window.requestAnimationFrame=function(t,n){var o=(new Date).getTime(),i=Math.max(0,16-(o-e)),r=window.setTimeout((function(){t(o+i)}),i);return e=o+i,r}),window.cancelAnimationFrame||(window.cancelAnimationFrame=function(e){clearTimeout(e)})})(),(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,speedAsDuration:!1,durationMax:null,durationMin:null,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},n=function(){return"querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype},o=function(){var e={};return Array.prototype.forEach.call(arguments,(function(t){for(var n in t){if(!t.hasOwnProperty(n))return;e[n]=t[n]}})),e},i=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)},r=function(t){return parseInt(e.getComputedStyle(t).height,10)},a=function(e){var t;try{t=decodeURIComponent(e)}catch(n){t=e}return t},u=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,i=-1,r="",a=n.charCodeAt(0);++i<o;){if(0===(t=n.charCodeAt(i)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===i&&t>=48&&t<=57||1===i&&t>=48&&t<=57&&45===a?r+="\\"+t.toString(16)+" ":r+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(i):"\\"+n.charAt(i)}var u;try{u=decodeURIComponent("#"+r)}catch(e){u="#"+r}return u},c=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(t,n,o,i){var r=0;if(t.offsetParent)do{r+=t.offsetTop,t=t.offsetParent}while(t);return r=Math.max(r-n-o,0),i&&(r=Math.min(r,s()-e.innerHeight)),r},m=function(e){return e?r(e)+e.offsetTop:0},d=function(e,t){var n=t.speedAsDuration?t.speed:Math.abs(e/1e3*t.speed);return t.durationMax&&n>t.durationMax?t.durationMax:t.durationMin&&n<t.durationMin?t.durationMin:n},f=function(e,t,n){t||history.pushState&&n.updateURL&&history.pushState({smoothScroll:JSON.stringify(n),anchor:e.id},document.title,e===document.documentElement?"#top":"#"+e.id)},h=function(t,n,o){0===t&&document.body.focus(),o||(t.focus(),document.activeElement!==t&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},p=function(t,n,o,i){if(n.emitEvents&&"function"==typeof e.CustomEvent){var r=new CustomEvent(t,{bubbles:!0,detail:{anchor:o,toggle:i}});document.dispatchEvent(r)}};return function(r,g){var v,w,y,E,b,S,A,C={};C.cancelScroll=function(e){cancelAnimationFrame(A),A=null,e||p("scrollCancel",v)},C.animateScroll=function(n,i,r){var a=o(v||t,r||{}),u="[object Number]"===Object.prototype.toString.call(n),g=u||!n.tagName?null:n;if(u||g){var w=e.pageYOffset;a.header&&!E&&(E=document.querySelector(a.header)),b||(b=m(E));var y,S,O,I=u?n:l(g,b,parseInt("function"==typeof a.offset?a.offset(n,i):a.offset,10),a.clip),q=I-w,M=s(),F=0,L=d(q,a),x=function(t,o){var r=e.pageYOffset;if(t==o||r==o||(w<o&&e.innerHeight+r)>=M)return C.cancelScroll(!0),h(n,o,u),p("scrollStop",a,n,i),y=null,A=null,!0},H=function(t){y||(y=t),F+=t-y,S=F/parseInt(L,10),S=S>1?1:S,O=w+q*c(a,S),e.scrollTo(0,Math.floor(O)),x(O,I)||(A=e.requestAnimationFrame(H),y=t)};0===e.pageYOffset&&e.scrollTo(0,0),f(n,u,a),p("scrollStart",a,n,i),C.cancelScroll(!0),e.requestAnimationFrame(H)}};var O=function(t){if(!i()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&"closest"in t.target&&(y=t.target.closest(r))&&"a"===y.tagName.toLowerCase()&&!t.target.closest(v.ignore)&&y.hostname===e.location.hostname&&y.pathname===e.location.pathname&&/#/.test(y.href)){var n=u(a(y.hash)),o=v.topOnEmptyHash&&"#"===n?document.documentElement:document.querySelector(n);o=o||"#top"!==n?o:document.documentElement,o&&(t.preventDefault(),C.animateScroll(o,y))}},I=function(e){if(null!==history.state&&history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(v)&&history.state.anchor){var t=document.querySelector(u(a(history.state.anchor)));t&&C.animateScroll(t,null,{updateURL:!1})}},q=function(e){S||(S=setTimeout((function(){S=null,b=m(E)}),66))};return C.destroy=function(){v&&(document.removeEventListener("click",O,!1),e.removeEventListener("resize",q,!1),e.removeEventListener("popstate",I,!1),C.cancelScroll(),v=null,w=null,y=null,E=null,b=null,S=null,A=null)},C.init=function(i){if(!n())throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";C.destroy(),v=o(t,i||{}),E=v.header?document.querySelector(v.header):null,b=m(E),document.addEventListener("click",O,!1),E&&e.addEventListener("resize",q,!1),v.updateURL&&v.popstate&&e.addEventListener("popstate",I,!1)},C.init(g),C}}));
\ No newline at end of file
diff --git a/docs/dist/smooth-scroll.js b/docs/dist/smooth-scroll.js
index 74ce7cc..958f66e 100755
--- a/docs/dist/smooth-scroll.js
+++ b/docs/dist/smooth-scroll.js
@@ -1,5 +1,5 @@
 /*!
- * smooth-scroll v14.2.1: Animate scrolling to anchor links
+ * smooth-scroll v15.0.0: Animate scrolling to anchor links
  * (c) 2018 Chris Ferdinandi
  * MIT License
  * http://github.com/cferdinandi/smooth-scroll
@@ -24,15 +24,21 @@
 	//
 
 	var defaults = {
+
 		// Selectors
 		ignore: '[data-scroll-ignore]',
 		header: null,
 		topOnEmptyHash: true,
 
-		// Speed & Easing
+		// Speed & Duration
 		speed: 500,
+		speedAsDuration: false,
+		durationMax: null,
+		durationMin: null,
 		clip: true,
 		offset: 0,
+
+		// Easing
 		easing: 'easeInOutCubic',
 		customEasing: null,
 
@@ -42,6 +48,7 @@
 
 		// Custom Events
 		emitEvents: true
+
 	};
 
 
@@ -63,31 +70,19 @@
 	};
 
 	/**
-	 * Merge two or more objects. Returns a new object.
-	 * @param {Object}   objects  The objects to merge together
-	 * @returns {Object}          Merged values of defaults and options
+	 * Merge two or more objects together.
+	 * @param   {Object}   objects  The objects to merge together
+	 * @returns {Object}            Merged values of defaults and options
 	 */
 	var extend = function () {
-
-		// Variables
-		var extended = {};
-
-		// Merge the object into the extended object
-		var merge = function (obj) {
-			for (var prop in obj) {
-				if (obj.hasOwnProperty(prop)) {
-					extended[prop] = obj[prop];
-				}
+		var merged = {};
+		Array.prototype.forEach.call(arguments, (function (obj) {
+			for (var key in obj) {
+				if (!obj.hasOwnProperty(key)) return;
+				merged[key] = obj[key];
 			}
-		};
-
-		// Loop through each object and conduct a merge
-		for (var i = 0; i < arguments.length; i++) {
-			merge(arguments[i]);
-		}
-
-		return extended;
-
+		}));
+		return merged;
 	};
 
 	/**
@@ -286,6 +281,19 @@
 		return !header ? 0 : (getHeight(header) + header.offsetTop);
 	};
 
+	/**
+	 * Calculate the speed to use for the animation
+	 * @param  {Number} distance The distance to travel
+	 * @param  {Object} settings The plugin settings
+	 * @return {Number}          How fast to animate
+	 */
+	var getSpeed = function (distance, settings) {
+		var speed = settings.speedAsDuration ? settings.speed : Math.abs(distance / 1000 * settings.speed);
+		if (settings.durationMax && speed > settings.durationMax) return settings.durationMax;
+		if (settings.durationMin && speed < settings.durationMin) return settings.durationMin;
+		return speed;
+	};
+
 	/**
 	 * Update the URL
 	 * @param  {Node}    anchor  The anchor that was scrolled to
@@ -396,25 +404,26 @@
 		smoothScroll.animateScroll = function (anchor, toggle, options) {
 
 			// Local settings
-			var animateSettings = extend(settings || defaults, options || {}); // Merge user options with defaults
+			var _settings = extend(settings || defaults, options || {}); // Merge user options with defaults
 
 			// Selectors and variables
 			var isNum = Object.prototype.toString.call(anchor) === '[object Number]' ? true : false;
 			var anchorElem = isNum || !anchor.tagName ? null : anchor;
 			if (!isNum && !anchorElem) return;
 			var startLocation = window.pageYOffset; // Current location on the page
-			if (animateSettings.header && !fixedHeader) {
+			if (_settings.header && !fixedHeader) {
 				// Get the fixed header if not already set
-				fixedHeader = document.querySelector(animateSettings.header);
+				fixedHeader = document.querySelector(_settings.header);
 			}
 			if (!headerHeight) {
 				// Get the height of a fixed header if one exists and not already set
 				headerHeight = getHeaderHeight(fixedHeader);
 			}
-			var endLocation = isNum ? anchor : getEndLocation(anchorElem, headerHeight, parseInt((typeof animateSettings.offset === 'function' ? animateSettings.offset(anchor, toggle) : animateSettings.offset), 10), animateSettings.clip); // Location to scroll to
+			var endLocation = isNum ? anchor : getEndLocation(anchorElem, headerHeight, parseInt((typeof _settings.offset === 'function' ? _settings.offset(anchor, toggle) : _settings.offset), 10), _settings.clip); // Location to scroll to
 			var distance = endLocation - startLocation; // distance to travel
 			var documentHeight = getDocumentHeight();
 			var timeLapsed = 0;
+			var speed = getSpeed(distance, _settings);
 			var start, percentage, position;
 
 			/**
@@ -438,7 +447,7 @@
 					adjustFocus(anchor, endLocation, isNum);
 
 					// Emit a custom event
-					emitEvent('scrollStop', animateSettings, anchor, toggle);
+					emitEvent('scrollStop', _settings, anchor, toggle);
 
 					// Reset start
 					start = null;
@@ -455,9 +464,9 @@
 			var loopAnimateScroll = function (timestamp) {
 				if (!start) { start = timestamp; }
 				timeLapsed += timestamp - start;
-				percentage = (timeLapsed / parseInt(animateSettings.speed, 10));
+				percentage = (timeLapsed / parseInt(speed, 10));
 				percentage = (percentage > 1) ? 1 : percentage;
-				position = startLocation + (distance * easingPattern(animateSettings, percentage));
+				position = startLocation + (distance * easingPattern(_settings, percentage));
 				window.scrollTo(0, Math.floor(position));
 				if (!stopAnimateScroll(position, endLocation)) {
 					animationInterval = window.requestAnimationFrame(loopAnimateScroll);
@@ -474,10 +483,10 @@
 			}
 
 			// Update the URL
-			updateURL(anchor, isNum, animateSettings);
+			updateURL(anchor, isNum, _settings);
 
 			// Emit a custom event
-			emitEvent('scrollStart', animateSettings, anchor, toggle);
+			emitEvent('scrollStart', _settings, anchor, toggle);
 
 			// Start scrolling animation
 			smoothScroll.cancelScroll(true);
@@ -525,9 +534,10 @@
 		 * Animate scroll on popstate events
 		 */
 		var popstateHandler = function (event) {
+
 			// Stop if history.state doesn't exist (ex. if clicking on a broken anchor link).
 			// fixes `Cannot read property 'smoothScroll' of null` error getting thrown.
-			if (history.state === null) return; 
+			if (history.state === null) return;
 
 			// Only run if state is a popstate record for this instantiation
 			if (!history.state.smoothScroll || history.state.smoothScroll !== JSON.stringify(settings)) return;
diff --git a/docs/dist/smooth-scroll.min.js b/docs/dist/smooth-scroll.min.js
index f4ba547..c38b100 100755
--- a/docs/dist/smooth-scroll.min.js
+++ b/docs/dist/smooth-scroll.min.js
@@ -1,2 +1,2 @@
-/*! smooth-scroll v14.2.1 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
-!(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},n=function(){return"querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype},o=function(){for(var e={},t=0;t<arguments.length;t++)!(function(t){for(var n in t)t.hasOwnProperty(n)&&(e[n]=t[n])})(arguments[t]);return e},r=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)},a=function(t){return parseInt(e.getComputedStyle(t).height,10)},i=function(e){var t;try{t=decodeURIComponent(e)}catch(n){t=e}return t},c=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,r=-1,a="",i=n.charCodeAt(0);++r<o;){if(0===(t=n.charCodeAt(r)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===r&&t>=48&&t<=57||1===r&&t>=48&&t<=57&&45===i?a+="\\"+t.toString(16)+" ":a+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(r):"\\"+n.charAt(r)}var c;try{c=decodeURIComponent("#"+a)}catch(e){c="#"+a}return c},u=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(t,n,o,r){var a=0;if(t.offsetParent)do{a+=t.offsetTop,t=t.offsetParent}while(t);return a=Math.max(a-n-o,0),r&&(a=Math.min(a,s()-e.innerHeight)),a},d=function(e){return e?a(e)+e.offsetTop:0},f=function(e,t,n){t||history.pushState&&n.updateURL&&history.pushState({smoothScroll:JSON.stringify(n),anchor:e.id},document.title,e===document.documentElement?"#top":"#"+e.id)},m=function(t,n,o){0===t&&document.body.focus(),o||(t.focus(),document.activeElement!==t&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},h=function(t,n,o,r){if(n.emitEvents&&"function"==typeof e.CustomEvent){var a=new CustomEvent(t,{bubbles:!0,detail:{anchor:o,toggle:r}});document.dispatchEvent(a)}};return function(a,p){var g,v,y,S,E,b,O,I={};I.cancelScroll=function(e){cancelAnimationFrame(O),O=null,e||h("scrollCancel",g)},I.animateScroll=function(n,r,a){var i=o(g||t,a||{}),c="[object Number]"===Object.prototype.toString.call(n),p=c||!n.tagName?null:n;if(c||p){var v=e.pageYOffset;i.header&&!S&&(S=document.querySelector(i.header)),E||(E=d(S));var y,b,C,w=c?n:l(p,E,parseInt("function"==typeof i.offset?i.offset(n,r):i.offset,10),i.clip),L=w-v,A=s(),H=0,q=function(t,o){var a=e.pageYOffset;if(t==o||a==o||(v<o&&e.innerHeight+a)>=A)return I.cancelScroll(!0),m(n,o,c),h("scrollStop",i,n,r),y=null,O=null,!0},Q=function(t){y||(y=t),H+=t-y,b=H/parseInt(i.speed,10),b=b>1?1:b,C=v+L*u(i,b),e.scrollTo(0,Math.floor(C)),q(C,w)||(O=e.requestAnimationFrame(Q),y=t)};0===e.pageYOffset&&e.scrollTo(0,0),f(n,c,i),h("scrollStart",i,n,r),I.cancelScroll(!0),e.requestAnimationFrame(Q)}};var C=function(t){if(!r()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&"closest"in t.target&&(y=t.target.closest(a))&&"a"===y.tagName.toLowerCase()&&!t.target.closest(g.ignore)&&y.hostname===e.location.hostname&&y.pathname===e.location.pathname&&/#/.test(y.href)){var n=c(i(y.hash)),o=g.topOnEmptyHash&&"#"===n?document.documentElement:document.querySelector(n);o=o||"#top"!==n?o:document.documentElement,o&&(t.preventDefault(),I.animateScroll(o,y))}},w=function(e){if(null!==history.state&&history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(g)&&history.state.anchor){var t=document.querySelector(c(i(history.state.anchor)));t&&I.animateScroll(t,null,{updateURL:!1})}},L=function(e){b||(b=setTimeout((function(){b=null,E=d(S)}),66))};return I.destroy=function(){g&&(document.removeEventListener("click",C,!1),e.removeEventListener("resize",L,!1),e.removeEventListener("popstate",w,!1),I.cancelScroll(),g=null,v=null,y=null,S=null,E=null,b=null,O=null)},I.init=function(r){if(!n())throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";I.destroy(),g=o(t,r||{}),S=g.header?document.querySelector(g.header):null,E=d(S),document.addEventListener("click",C,!1),S&&e.addEventListener("resize",L,!1),g.updateURL&&g.popstate&&e.addEventListener("popstate",w,!1)},I.init(p),I}}));
\ No newline at end of file
+/*! smooth-scroll v15.0.0 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
+!(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,speedAsDuration:!1,durationMax:null,durationMin:null,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},n=function(){return"querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype},o=function(){var e={};return Array.prototype.forEach.call(arguments,(function(t){for(var n in t){if(!t.hasOwnProperty(n))return;e[n]=t[n]}})),e},r=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)},a=function(t){return parseInt(e.getComputedStyle(t).height,10)},i=function(e){var t;try{t=decodeURIComponent(e)}catch(n){t=e}return t},u=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,r=-1,a="",i=n.charCodeAt(0);++r<o;){if(0===(t=n.charCodeAt(r)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===r&&t>=48&&t<=57||1===r&&t>=48&&t<=57&&45===i?a+="\\"+t.toString(16)+" ":a+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(r):"\\"+n.charAt(r)}var u;try{u=decodeURIComponent("#"+a)}catch(e){u="#"+a}return u},c=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(t,n,o,r){var a=0;if(t.offsetParent)do{a+=t.offsetTop,t=t.offsetParent}while(t);return a=Math.max(a-n-o,0),r&&(a=Math.min(a,s()-e.innerHeight)),a},d=function(e){return e?a(e)+e.offsetTop:0},f=function(e,t){var n=t.speedAsDuration?t.speed:Math.abs(e/1e3*t.speed);return t.durationMax&&n>t.durationMax?t.durationMax:t.durationMin&&n<t.durationMin?t.durationMin:n},m=function(e,t,n){t||history.pushState&&n.updateURL&&history.pushState({smoothScroll:JSON.stringify(n),anchor:e.id},document.title,e===document.documentElement?"#top":"#"+e.id)},h=function(t,n,o){0===t&&document.body.focus(),o||(t.focus(),document.activeElement!==t&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},p=function(t,n,o,r){if(n.emitEvents&&"function"==typeof e.CustomEvent){var a=new CustomEvent(t,{bubbles:!0,detail:{anchor:o,toggle:r}});document.dispatchEvent(a)}};return function(a,g){var y,v,S,E,b,O,I,M={};M.cancelScroll=function(e){cancelAnimationFrame(I),I=null,e||p("scrollCancel",y)},M.animateScroll=function(n,r,a){var i=o(y||t,a||{}),u="[object Number]"===Object.prototype.toString.call(n),g=u||!n.tagName?null:n;if(u||g){var v=e.pageYOffset;i.header&&!E&&(E=document.querySelector(i.header)),b||(b=d(E));var S,O,A,C=u?n:l(g,b,parseInt("function"==typeof i.offset?i.offset(n,r):i.offset,10),i.clip),w=C-v,L=s(),H=0,q=f(w,i),x=function(t,o){var a=e.pageYOffset;if(t==o||a==o||(v<o&&e.innerHeight+a)>=L)return M.cancelScroll(!0),h(n,o,u),p("scrollStop",i,n,r),S=null,I=null,!0},Q=function(t){S||(S=t),H+=t-S,O=H/parseInt(q,10),O=O>1?1:O,A=v+w*c(i,O),e.scrollTo(0,Math.floor(A)),x(A,C)||(I=e.requestAnimationFrame(Q),S=t)};0===e.pageYOffset&&e.scrollTo(0,0),m(n,u,i),p("scrollStart",i,n,r),M.cancelScroll(!0),e.requestAnimationFrame(Q)}};var A=function(t){if(!r()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&"closest"in t.target&&(S=t.target.closest(a))&&"a"===S.tagName.toLowerCase()&&!t.target.closest(y.ignore)&&S.hostname===e.location.hostname&&S.pathname===e.location.pathname&&/#/.test(S.href)){var n=u(i(S.hash)),o=y.topOnEmptyHash&&"#"===n?document.documentElement:document.querySelector(n);o=o||"#top"!==n?o:document.documentElement,o&&(t.preventDefault(),M.animateScroll(o,S))}},C=function(e){if(null!==history.state&&history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(y)&&history.state.anchor){var t=document.querySelector(u(i(history.state.anchor)));t&&M.animateScroll(t,null,{updateURL:!1})}},w=function(e){O||(O=setTimeout((function(){O=null,b=d(E)}),66))};return M.destroy=function(){y&&(document.removeEventListener("click",A,!1),e.removeEventListener("resize",w,!1),e.removeEventListener("popstate",C,!1),M.cancelScroll(),y=null,v=null,S=null,E=null,b=null,O=null,I=null)},M.init=function(r){if(!n())throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";M.destroy(),y=o(t,r||{}),E=y.header?document.querySelector(y.header):null,b=d(E),document.addEventListener("click",A,!1),E&&e.addEventListener("resize",w,!1),y.updateURL&&y.popstate&&e.addEventListener("popstate",C,!1)},M.init(g),M}}));
\ No newline at end of file
diff --git a/docs/dist/smooth-scroll.polyfills.js b/docs/dist/smooth-scroll.polyfills.js
old mode 100644
new mode 100755
index 553531a..98262ed
--- a/docs/dist/smooth-scroll.polyfills.js
+++ b/docs/dist/smooth-scroll.polyfills.js
@@ -1,5 +1,5 @@
 /*!
- * smooth-scroll v14.2.1: Animate scrolling to anchor links
+ * smooth-scroll v15.0.0: Animate scrolling to anchor links
  * (c) 2018 Chris Ferdinandi
  * MIT License
  * http://github.com/cferdinandi/smooth-scroll
@@ -94,15 +94,21 @@ if (window.Element && !Element.prototype.closest) {
 	//
 
 	var defaults = {
+
 		// Selectors
 		ignore: '[data-scroll-ignore]',
 		header: null,
 		topOnEmptyHash: true,
 
-		// Speed & Easing
+		// Speed & Duration
 		speed: 500,
+		speedAsDuration: false,
+		durationMax: null,
+		durationMin: null,
 		clip: true,
 		offset: 0,
+
+		// Easing
 		easing: 'easeInOutCubic',
 		customEasing: null,
 
@@ -112,6 +118,7 @@ if (window.Element && !Element.prototype.closest) {
 
 		// Custom Events
 		emitEvents: true
+
 	};
 
 
@@ -133,31 +140,19 @@ if (window.Element && !Element.prototype.closest) {
 	};
 
 	/**
-	 * Merge two or more objects. Returns a new object.
-	 * @param {Object}   objects  The objects to merge together
-	 * @returns {Object}          Merged values of defaults and options
+	 * Merge two or more objects together.
+	 * @param   {Object}   objects  The objects to merge together
+	 * @returns {Object}            Merged values of defaults and options
 	 */
 	var extend = function () {
-
-		// Variables
-		var extended = {};
-
-		// Merge the object into the extended object
-		var merge = function (obj) {
-			for (var prop in obj) {
-				if (obj.hasOwnProperty(prop)) {
-					extended[prop] = obj[prop];
-				}
+		var merged = {};
+		Array.prototype.forEach.call(arguments, (function (obj) {
+			for (var key in obj) {
+				if (!obj.hasOwnProperty(key)) return;
+				merged[key] = obj[key];
 			}
-		};
-
-		// Loop through each object and conduct a merge
-		for (var i = 0; i < arguments.length; i++) {
-			merge(arguments[i]);
-		}
-
-		return extended;
-
+		}));
+		return merged;
 	};
 
 	/**
@@ -356,6 +351,19 @@ if (window.Element && !Element.prototype.closest) {
 		return !header ? 0 : (getHeight(header) + header.offsetTop);
 	};
 
+	/**
+	 * Calculate the speed to use for the animation
+	 * @param  {Number} distance The distance to travel
+	 * @param  {Object} settings The plugin settings
+	 * @return {Number}          How fast to animate
+	 */
+	var getSpeed = function (distance, settings) {
+		var speed = settings.speedAsDuration ? settings.speed : Math.abs(distance / 1000 * settings.speed);
+		if (settings.durationMax && speed > settings.durationMax) return settings.durationMax;
+		if (settings.durationMin && speed < settings.durationMin) return settings.durationMin;
+		return speed;
+	};
+
 	/**
 	 * Update the URL
 	 * @param  {Node}    anchor  The anchor that was scrolled to
@@ -466,25 +474,26 @@ if (window.Element && !Element.prototype.closest) {
 		smoothScroll.animateScroll = function (anchor, toggle, options) {
 
 			// Local settings
-			var animateSettings = extend(settings || defaults, options || {}); // Merge user options with defaults
+			var _settings = extend(settings || defaults, options || {}); // Merge user options with defaults
 
 			// Selectors and variables
 			var isNum = Object.prototype.toString.call(anchor) === '[object Number]' ? true : false;
 			var anchorElem = isNum || !anchor.tagName ? null : anchor;
 			if (!isNum && !anchorElem) return;
 			var startLocation = window.pageYOffset; // Current location on the page
-			if (animateSettings.header && !fixedHeader) {
+			if (_settings.header && !fixedHeader) {
 				// Get the fixed header if not already set
-				fixedHeader = document.querySelector(animateSettings.header);
+				fixedHeader = document.querySelector(_settings.header);
 			}
 			if (!headerHeight) {
 				// Get the height of a fixed header if one exists and not already set
 				headerHeight = getHeaderHeight(fixedHeader);
 			}
-			var endLocation = isNum ? anchor : getEndLocation(anchorElem, headerHeight, parseInt((typeof animateSettings.offset === 'function' ? animateSettings.offset(anchor, toggle) : animateSettings.offset), 10), animateSettings.clip); // Location to scroll to
+			var endLocation = isNum ? anchor : getEndLocation(anchorElem, headerHeight, parseInt((typeof _settings.offset === 'function' ? _settings.offset(anchor, toggle) : _settings.offset), 10), _settings.clip); // Location to scroll to
 			var distance = endLocation - startLocation; // distance to travel
 			var documentHeight = getDocumentHeight();
 			var timeLapsed = 0;
+			var speed = getSpeed(distance, _settings);
 			var start, percentage, position;
 
 			/**
@@ -508,7 +517,7 @@ if (window.Element && !Element.prototype.closest) {
 					adjustFocus(anchor, endLocation, isNum);
 
 					// Emit a custom event
-					emitEvent('scrollStop', animateSettings, anchor, toggle);
+					emitEvent('scrollStop', _settings, anchor, toggle);
 
 					// Reset start
 					start = null;
@@ -525,9 +534,9 @@ if (window.Element && !Element.prototype.closest) {
 			var loopAnimateScroll = function (timestamp) {
 				if (!start) { start = timestamp; }
 				timeLapsed += timestamp - start;
-				percentage = (timeLapsed / parseInt(animateSettings.speed, 10));
+				percentage = (timeLapsed / parseInt(speed, 10));
 				percentage = (percentage > 1) ? 1 : percentage;
-				position = startLocation + (distance * easingPattern(animateSettings, percentage));
+				position = startLocation + (distance * easingPattern(_settings, percentage));
 				window.scrollTo(0, Math.floor(position));
 				if (!stopAnimateScroll(position, endLocation)) {
 					animationInterval = window.requestAnimationFrame(loopAnimateScroll);
@@ -544,10 +553,10 @@ if (window.Element && !Element.prototype.closest) {
 			}
 
 			// Update the URL
-			updateURL(anchor, isNum, animateSettings);
+			updateURL(anchor, isNum, _settings);
 
 			// Emit a custom event
-			emitEvent('scrollStart', animateSettings, anchor, toggle);
+			emitEvent('scrollStart', _settings, anchor, toggle);
 
 			// Start scrolling animation
 			smoothScroll.cancelScroll(true);
@@ -595,9 +604,10 @@ if (window.Element && !Element.prototype.closest) {
 		 * Animate scroll on popstate events
 		 */
 		var popstateHandler = function (event) {
+
 			// Stop if history.state doesn't exist (ex. if clicking on a broken anchor link).
 			// fixes `Cannot read property 'smoothScroll' of null` error getting thrown.
-			if (history.state === null) return; 
+			if (history.state === null) return;
 
 			// Only run if state is a popstate record for this instantiation
 			if (!history.state.smoothScroll || history.state.smoothScroll !== JSON.stringify(settings)) return;
diff --git a/docs/dist/smooth-scroll.polyfills.min.js b/docs/dist/smooth-scroll.polyfills.min.js
old mode 100644
new mode 100755
index 4ba1334..cefa87e
--- a/docs/dist/smooth-scroll.polyfills.min.js
+++ b/docs/dist/smooth-scroll.polyfills.min.js
@@ -1,2 +1,2 @@
-/*! smooth-scroll v14.2.1 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
-window.Element&&!Element.prototype.closest&&(Element.prototype.closest=function(e){var t,n=(this.document||this.ownerDocument).querySelectorAll(e),o=this;do{for(t=n.length;--t>=0&&n.item(t)!==o;);}while(t<0&&(o=o.parentElement));return o}),(function(){function e(e,t){t=t||{bubbles:!1,cancelable:!1,detail:void 0};var n=document.createEvent("CustomEvent");return n.initCustomEvent(e,t.bubbles,t.cancelable,t.detail),n}if("function"==typeof window.CustomEvent)return!1;e.prototype=window.Event.prototype,window.CustomEvent=e})(),(function(){for(var e=0,t=["ms","moz","webkit","o"],n=0;n<t.length&&!window.requestAnimationFrame;++n)window.requestAnimationFrame=window[t[n]+"RequestAnimationFrame"],window.cancelAnimationFrame=window[t[n]+"CancelAnimationFrame"]||window[t[n]+"CancelRequestAnimationFrame"];window.requestAnimationFrame||(window.requestAnimationFrame=function(t,n){var o=(new Date).getTime(),i=Math.max(0,16-(o-e)),r=window.setTimeout((function(){t(o+i)}),i);return e=o+i,r}),window.cancelAnimationFrame||(window.cancelAnimationFrame=function(e){clearTimeout(e)})})(),(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},n=function(){return"querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype},o=function(){for(var e={},t=0;t<arguments.length;t++)!(function(t){for(var n in t)t.hasOwnProperty(n)&&(e[n]=t[n])})(arguments[t]);return e},i=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)},r=function(t){return parseInt(e.getComputedStyle(t).height,10)},a=function(e){var t;try{t=decodeURIComponent(e)}catch(n){t=e}return t},u=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,i=-1,r="",a=n.charCodeAt(0);++i<o;){if(0===(t=n.charCodeAt(i)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===i&&t>=48&&t<=57||1===i&&t>=48&&t<=57&&45===a?r+="\\"+t.toString(16)+" ":r+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(i):"\\"+n.charAt(i)}var u;try{u=decodeURIComponent("#"+r)}catch(e){u="#"+r}return u},c=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(t,n,o,i){var r=0;if(t.offsetParent)do{r+=t.offsetTop,t=t.offsetParent}while(t);return r=Math.max(r-n-o,0),i&&(r=Math.min(r,s()-e.innerHeight)),r},m=function(e){return e?r(e)+e.offsetTop:0},d=function(e,t,n){t||history.pushState&&n.updateURL&&history.pushState({smoothScroll:JSON.stringify(n),anchor:e.id},document.title,e===document.documentElement?"#top":"#"+e.id)},f=function(t,n,o){0===t&&document.body.focus(),o||(t.focus(),document.activeElement!==t&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},h=function(t,n,o,i){if(n.emitEvents&&"function"==typeof e.CustomEvent){var r=new CustomEvent(t,{bubbles:!0,detail:{anchor:o,toggle:i}});document.dispatchEvent(r)}};return function(r,p){var g,v,w,y,E,b,S,A={};A.cancelScroll=function(e){cancelAnimationFrame(S),S=null,e||h("scrollCancel",g)},A.animateScroll=function(n,i,r){var a=o(g||t,r||{}),u="[object Number]"===Object.prototype.toString.call(n),p=u||!n.tagName?null:n;if(u||p){var v=e.pageYOffset;a.header&&!y&&(y=document.querySelector(a.header)),E||(E=m(y));var w,b,C,O=u?n:l(p,E,parseInt("function"==typeof a.offset?a.offset(n,i):a.offset,10),a.clip),I=O-v,q=s(),F=0,L=function(t,o){var r=e.pageYOffset;if(t==o||r==o||(v<o&&e.innerHeight+r)>=q)return A.cancelScroll(!0),f(n,o,u),h("scrollStop",a,n,i),w=null,S=null,!0},H=function(t){w||(w=t),F+=t-w,b=F/parseInt(a.speed,10),b=b>1?1:b,C=v+I*c(a,b),e.scrollTo(0,Math.floor(C)),L(C,O)||(S=e.requestAnimationFrame(H),w=t)};0===e.pageYOffset&&e.scrollTo(0,0),d(n,u,a),h("scrollStart",a,n,i),A.cancelScroll(!0),e.requestAnimationFrame(H)}};var C=function(t){if(!i()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&"closest"in t.target&&(w=t.target.closest(r))&&"a"===w.tagName.toLowerCase()&&!t.target.closest(g.ignore)&&w.hostname===e.location.hostname&&w.pathname===e.location.pathname&&/#/.test(w.href)){var n=u(a(w.hash)),o=g.topOnEmptyHash&&"#"===n?document.documentElement:document.querySelector(n);o=o||"#top"!==n?o:document.documentElement,o&&(t.preventDefault(),A.animateScroll(o,w))}},O=function(e){if(null!==history.state&&history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(g)&&history.state.anchor){var t=document.querySelector(u(a(history.state.anchor)));t&&A.animateScroll(t,null,{updateURL:!1})}},I=function(e){b||(b=setTimeout((function(){b=null,E=m(y)}),66))};return A.destroy=function(){g&&(document.removeEventListener("click",C,!1),e.removeEventListener("resize",I,!1),e.removeEventListener("popstate",O,!1),A.cancelScroll(),g=null,v=null,w=null,y=null,E=null,b=null,S=null)},A.init=function(i){if(!n())throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";A.destroy(),g=o(t,i||{}),y=g.header?document.querySelector(g.header):null,E=m(y),document.addEventListener("click",C,!1),y&&e.addEventListener("resize",I,!1),g.updateURL&&g.popstate&&e.addEventListener("popstate",O,!1)},A.init(p),A}}));
\ No newline at end of file
+/*! smooth-scroll v15.0.0 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
+window.Element&&!Element.prototype.closest&&(Element.prototype.closest=function(e){var t,n=(this.document||this.ownerDocument).querySelectorAll(e),o=this;do{for(t=n.length;--t>=0&&n.item(t)!==o;);}while(t<0&&(o=o.parentElement));return o}),(function(){function e(e,t){t=t||{bubbles:!1,cancelable:!1,detail:void 0};var n=document.createEvent("CustomEvent");return n.initCustomEvent(e,t.bubbles,t.cancelable,t.detail),n}if("function"==typeof window.CustomEvent)return!1;e.prototype=window.Event.prototype,window.CustomEvent=e})(),(function(){for(var e=0,t=["ms","moz","webkit","o"],n=0;n<t.length&&!window.requestAnimationFrame;++n)window.requestAnimationFrame=window[t[n]+"RequestAnimationFrame"],window.cancelAnimationFrame=window[t[n]+"CancelAnimationFrame"]||window[t[n]+"CancelRequestAnimationFrame"];window.requestAnimationFrame||(window.requestAnimationFrame=function(t,n){var o=(new Date).getTime(),i=Math.max(0,16-(o-e)),r=window.setTimeout((function(){t(o+i)}),i);return e=o+i,r}),window.cancelAnimationFrame||(window.cancelAnimationFrame=function(e){clearTimeout(e)})})(),(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,speedAsDuration:!1,durationMax:null,durationMin:null,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},n=function(){return"querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype},o=function(){var e={};return Array.prototype.forEach.call(arguments,(function(t){for(var n in t){if(!t.hasOwnProperty(n))return;e[n]=t[n]}})),e},i=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)},r=function(t){return parseInt(e.getComputedStyle(t).height,10)},a=function(e){var t;try{t=decodeURIComponent(e)}catch(n){t=e}return t},u=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,i=-1,r="",a=n.charCodeAt(0);++i<o;){if(0===(t=n.charCodeAt(i)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===i&&t>=48&&t<=57||1===i&&t>=48&&t<=57&&45===a?r+="\\"+t.toString(16)+" ":r+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(i):"\\"+n.charAt(i)}var u;try{u=decodeURIComponent("#"+r)}catch(e){u="#"+r}return u},c=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(t,n,o,i){var r=0;if(t.offsetParent)do{r+=t.offsetTop,t=t.offsetParent}while(t);return r=Math.max(r-n-o,0),i&&(r=Math.min(r,s()-e.innerHeight)),r},m=function(e){return e?r(e)+e.offsetTop:0},d=function(e,t){var n=t.speedAsDuration?t.speed:Math.abs(e/1e3*t.speed);return t.durationMax&&n>t.durationMax?t.durationMax:t.durationMin&&n<t.durationMin?t.durationMin:n},f=function(e,t,n){t||history.pushState&&n.updateURL&&history.pushState({smoothScroll:JSON.stringify(n),anchor:e.id},document.title,e===document.documentElement?"#top":"#"+e.id)},h=function(t,n,o){0===t&&document.body.focus(),o||(t.focus(),document.activeElement!==t&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},p=function(t,n,o,i){if(n.emitEvents&&"function"==typeof e.CustomEvent){var r=new CustomEvent(t,{bubbles:!0,detail:{anchor:o,toggle:i}});document.dispatchEvent(r)}};return function(r,g){var v,w,y,E,b,S,A,C={};C.cancelScroll=function(e){cancelAnimationFrame(A),A=null,e||p("scrollCancel",v)},C.animateScroll=function(n,i,r){var a=o(v||t,r||{}),u="[object Number]"===Object.prototype.toString.call(n),g=u||!n.tagName?null:n;if(u||g){var w=e.pageYOffset;a.header&&!E&&(E=document.querySelector(a.header)),b||(b=m(E));var y,S,O,I=u?n:l(g,b,parseInt("function"==typeof a.offset?a.offset(n,i):a.offset,10),a.clip),q=I-w,M=s(),F=0,L=d(q,a),x=function(t,o){var r=e.pageYOffset;if(t==o||r==o||(w<o&&e.innerHeight+r)>=M)return C.cancelScroll(!0),h(n,o,u),p("scrollStop",a,n,i),y=null,A=null,!0},H=function(t){y||(y=t),F+=t-y,S=F/parseInt(L,10),S=S>1?1:S,O=w+q*c(a,S),e.scrollTo(0,Math.floor(O)),x(O,I)||(A=e.requestAnimationFrame(H),y=t)};0===e.pageYOffset&&e.scrollTo(0,0),f(n,u,a),p("scrollStart",a,n,i),C.cancelScroll(!0),e.requestAnimationFrame(H)}};var O=function(t){if(!i()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&"closest"in t.target&&(y=t.target.closest(r))&&"a"===y.tagName.toLowerCase()&&!t.target.closest(v.ignore)&&y.hostname===e.location.hostname&&y.pathname===e.location.pathname&&/#/.test(y.href)){var n=u(a(y.hash)),o=v.topOnEmptyHash&&"#"===n?document.documentElement:document.querySelector(n);o=o||"#top"!==n?o:document.documentElement,o&&(t.preventDefault(),C.animateScroll(o,y))}},I=function(e){if(null!==history.state&&history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(v)&&history.state.anchor){var t=document.querySelector(u(a(history.state.anchor)));t&&C.animateScroll(t,null,{updateURL:!1})}},q=function(e){S||(S=setTimeout((function(){S=null,b=m(E)}),66))};return C.destroy=function(){v&&(document.removeEventListener("click",O,!1),e.removeEventListener("resize",q,!1),e.removeEventListener("popstate",I,!1),C.cancelScroll(),v=null,w=null,y=null,E=null,b=null,S=null,A=null)},C.init=function(i){if(!n())throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";C.destroy(),v=o(t,i||{}),E=v.header?document.querySelector(v.header):null,b=m(E),document.addEventListener("click",O,!1),E&&e.addEventListener("resize",q,!1),v.updateURL&&v.popstate&&e.addEventListener("popstate",I,!1)},C.init(g),C}}));
\ No newline at end of file
diff --git a/docs/index.html b/docs/index.html
index 8d01595..0527ea0 100755
--- a/docs/index.html
+++ b/docs/index.html
@@ -97,32 +97,34 @@ <h1>Smooth Scroll</h1>
 			// Instantiate Scrolls
 			var scroll = new SmoothScroll('a[href*="#"]:not([data-easing])');
 
-			var linear = new SmoothScroll('[data-easing="linear"]', {easing: 'linear'});
-
-			var easeInQuad = new SmoothScroll('[data-easing="easeInQuad"]', {easing: 'easeInQuad'});
-			var easeInCubic = new SmoothScroll('[data-easing="easeInCubic"]', {easing: 'easeInCubic'});
-			var easeInQuart = new SmoothScroll('[data-easing="easeInQuart"]', {easing: 'easeInQuart'});
-			var easeInQuint = new SmoothScroll('[data-easing="easeInQuint"]', {easing: 'easeInQuint'});
-
-			var easeInOutQuad = new SmoothScroll('[data-easing="easeInOutQuad"]', {easing: 'easeInOutQuad'});
-			var easeInOutCubic = new SmoothScroll('[data-easing="easeInOutCubic"]', {easing: 'easeInOutCubic'});
-			var easeInOutQuart = new SmoothScroll('[data-easing="easeInOutQuart"]', {easing: 'easeInOutQuart'});
-			var easeInOutQuint = new SmoothScroll('[data-easing="easeInOutQuint"]', {easing: 'easeInOutQuint'});
-
-			var easeOutQuad = new SmoothScroll('[data-easing="easeOutQuad"]', {easing: 'easeOutQuad'});
-			var easeOutCubic = new SmoothScroll('[data-easing="easeOutCubic"]', {easing: 'easeOutCubic'});
-			var easeOutQuart = new SmoothScroll('[data-easing="easeOutQuart"]', {easing: 'easeOutQuart'});
-			var easeOutQuint = new SmoothScroll('[data-easing="easeOutQuint"]', {easing: 'easeOutQuint'});
-
-			// Log scroll events
-			var logScrollEvent = function (event) {
-				console.log('type:', event.type);
-				console.log('anchor:', event.detail.anchor);
-				console.log('toggle:', event.detail.toggle);
-			};
-			document.addEventListener('scrollStart', logScrollEvent, false);
-			document.addEventListener('scrollStop', logScrollEvent, false);
-			document.addEventListener('scrollCancel', logScrollEvent, false);
+			if (document.querySelector('[data-easing]')) {
+				var linear = new SmoothScroll('[data-easing="linear"]', {easing: 'linear'});
+
+				var easeInQuad = new SmoothScroll('[data-easing="easeInQuad"]', {easing: 'easeInQuad'});
+				var easeInCubic = new SmoothScroll('[data-easing="easeInCubic"]', {easing: 'easeInCubic'});
+				var easeInQuart = new SmoothScroll('[data-easing="easeInQuart"]', {easing: 'easeInQuart'});
+				var easeInQuint = new SmoothScroll('[data-easing="easeInQuint"]', {easing: 'easeInQuint'});
+
+				var easeInOutQuad = new SmoothScroll('[data-easing="easeInOutQuad"]', {easing: 'easeInOutQuad'});
+				var easeInOutCubic = new SmoothScroll('[data-easing="easeInOutCubic"]', {easing: 'easeInOutCubic'});
+				var easeInOutQuart = new SmoothScroll('[data-easing="easeInOutQuart"]', {easing: 'easeInOutQuart'});
+				var easeInOutQuint = new SmoothScroll('[data-easing="easeInOutQuint"]', {easing: 'easeInOutQuint'});
+
+				var easeOutQuad = new SmoothScroll('[data-easing="easeOutQuad"]', {easing: 'easeOutQuad'});
+				var easeOutCubic = new SmoothScroll('[data-easing="easeOutCubic"]', {easing: 'easeOutCubic'});
+				var easeOutQuart = new SmoothScroll('[data-easing="easeOutQuart"]', {easing: 'easeOutQuart'});
+				var easeOutQuint = new SmoothScroll('[data-easing="easeOutQuint"]', {easing: 'easeOutQuint'});
+			}
+
+			// // Log scroll events
+			// var logScrollEvent = function (event) {
+			// 	console.log('type:', event.type);
+			// 	console.log('anchor:', event.detail.anchor);
+			// 	console.log('toggle:', event.detail.toggle);
+			// };
+			// document.addEventListener('scrollStart', logScrollEvent, false);
+			// document.addEventListener('scrollStop', logScrollEvent, false);
+			// document.addEventListener('scrollCancel', logScrollEvent, false);
 		</script>
 
 
diff --git a/docs/speed.html b/docs/speed.html
new file mode 100644
index 0000000..f14b955
--- /dev/null
+++ b/docs/speed.html
@@ -0,0 +1,100 @@
+<!DOCTYPE html>
+<html lang="en">
+
+	<head>
+		<meta charset="utf-8">
+		<title>Smooth Scroll</title>
+		<meta name="viewport" content="width=device-width, initial-scale=1.0">
+
+		<!-- stylesheets -->
+		<style type="text/css">
+			body {
+				font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Roboto", "Oxygen", "Ubuntu", "Cantarell", "Fira Sans", "Droid Sans", "Helvetica Neue", sans-serif;
+				font-size: 112.5%;
+				margin-left: auto;
+				margin-right: auto;
+				max-width: 40em;
+				width: 88%;
+			}
+		</style>
+	</head>
+
+	<body>
+
+		<main id="top">
+
+			<nav>
+				<h1>Smooth Scroll</h1>
+				<p><a href="https://github.com/cferdinandi/smooth-scroll">GitHub</a></p>
+				<hr>
+			</nav>
+
+			<section>
+<p>
+    <a href="#bazinga">Click Me</a><br>
+    <a href="#1@#%^-bottom">Or me</a>
+</p>
+
+<p>
+    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
+    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
+    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.
+</p>
+
+<p id="bazinga"><a href="#1@#%^-bottom">Bazinga!</a></p>
+
+<p>
+    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
+    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
+    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.
+    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
+    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
+    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.
+</p>
+
+<p id="1@#%^-bottom"><a href="#top">Back to the top</a></p>
+
+<p>.<br>.<br>.<br>.<br>.</p>
+			</section>
+		</main>
+
+		<!-- Javascript -->
+		<script src="http://github.com/dist/smooth-scroll.polyfills.min.js"></script>
+		<script>
+
+			// Instantiate Scrolls
+			var scroll = new SmoothScroll('a[href*="#"]:not([data-easing])');
+
+			if (document.querySelector('[data-easing]')) {
+				var linear = new SmoothScroll('[data-easing="linear"]', {easing: 'linear'});
+
+				var easeInQuad = new SmoothScroll('[data-easing="easeInQuad"]', {easing: 'easeInQuad'});
+				var easeInCubic = new SmoothScroll('[data-easing="easeInCubic"]', {easing: 'easeInCubic'});
+				var easeInQuart = new SmoothScroll('[data-easing="easeInQuart"]', {easing: 'easeInQuart'});
+				var easeInQuint = new SmoothScroll('[data-easing="easeInQuint"]', {easing: 'easeInQuint'});
+
+				var easeInOutQuad = new SmoothScroll('[data-easing="easeInOutQuad"]', {easing: 'easeInOutQuad'});
+				var easeInOutCubic = new SmoothScroll('[data-easing="easeInOutCubic"]', {easing: 'easeInOutCubic'});
+				var easeInOutQuart = new SmoothScroll('[data-easing="easeInOutQuart"]', {easing: 'easeInOutQuart'});
+				var easeInOutQuint = new SmoothScroll('[data-easing="easeInOutQuint"]', {easing: 'easeInOutQuint'});
+
+				var easeOutQuad = new SmoothScroll('[data-easing="easeOutQuad"]', {easing: 'easeOutQuad'});
+				var easeOutCubic = new SmoothScroll('[data-easing="easeOutCubic"]', {easing: 'easeOutCubic'});
+				var easeOutQuart = new SmoothScroll('[data-easing="easeOutQuart"]', {easing: 'easeOutQuart'});
+				var easeOutQuint = new SmoothScroll('[data-easing="easeOutQuint"]', {easing: 'easeOutQuint'});
+			}
+
+			// // Log scroll events
+			// var logScrollEvent = function (event) {
+			// 	console.log('type:', event.type);
+			// 	console.log('anchor:', event.detail.anchor);
+			// 	console.log('toggle:', event.detail.toggle);
+			// };
+			// document.addEventListener('scrollStart', logScrollEvent, false);
+			// document.addEventListener('scrollStop', logScrollEvent, false);
+			// document.addEventListener('scrollCancel', logScrollEvent, false);
+		</script>
+
+
+	</body>
+</html>
\ No newline at end of file
diff --git a/package.json b/package.json
index 542e980..ab37d3d 100755
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
 	"name": "smooth-scroll",
-	"version": "14.2.1",
+	"version": "15.0.0",
 	"description": "Animate scrolling to anchor links",
 	"main": "./dist/smooth-scroll.polyfills.min.js",
 	"author": {
diff --git a/src/docs/_templates/_footer.html b/src/docs/_templates/_footer.html
index 4fdbf41..78dba3a 100755
--- a/src/docs/_templates/_footer.html
+++ b/src/docs/_templates/_footer.html
@@ -9,32 +9,34 @@
 			// Instantiate Scrolls
 			var scroll = new SmoothScroll('a[href*="#"]:not([data-easing])');
 
-			var linear = new SmoothScroll('[data-easing="linear"]', {easing: 'linear'});
-
-			var easeInQuad = new SmoothScroll('[data-easing="easeInQuad"]', {easing: 'easeInQuad'});
-			var easeInCubic = new SmoothScroll('[data-easing="easeInCubic"]', {easing: 'easeInCubic'});
-			var easeInQuart = new SmoothScroll('[data-easing="easeInQuart"]', {easing: 'easeInQuart'});
-			var easeInQuint = new SmoothScroll('[data-easing="easeInQuint"]', {easing: 'easeInQuint'});
-
-			var easeInOutQuad = new SmoothScroll('[data-easing="easeInOutQuad"]', {easing: 'easeInOutQuad'});
-			var easeInOutCubic = new SmoothScroll('[data-easing="easeInOutCubic"]', {easing: 'easeInOutCubic'});
-			var easeInOutQuart = new SmoothScroll('[data-easing="easeInOutQuart"]', {easing: 'easeInOutQuart'});
-			var easeInOutQuint = new SmoothScroll('[data-easing="easeInOutQuint"]', {easing: 'easeInOutQuint'});
-
-			var easeOutQuad = new SmoothScroll('[data-easing="easeOutQuad"]', {easing: 'easeOutQuad'});
-			var easeOutCubic = new SmoothScroll('[data-easing="easeOutCubic"]', {easing: 'easeOutCubic'});
-			var easeOutQuart = new SmoothScroll('[data-easing="easeOutQuart"]', {easing: 'easeOutQuart'});
-			var easeOutQuint = new SmoothScroll('[data-easing="easeOutQuint"]', {easing: 'easeOutQuint'});
-
-			// Log scroll events
-			var logScrollEvent = function (event) {
-				console.log('type:', event.type);
-				console.log('anchor:', event.detail.anchor);
-				console.log('toggle:', event.detail.toggle);
-			};
-			document.addEventListener('scrollStart', logScrollEvent, false);
-			document.addEventListener('scrollStop', logScrollEvent, false);
-			document.addEventListener('scrollCancel', logScrollEvent, false);
+			if (document.querySelector('[data-easing]')) {
+				var linear = new SmoothScroll('[data-easing="linear"]', {easing: 'linear'});
+
+				var easeInQuad = new SmoothScroll('[data-easing="easeInQuad"]', {easing: 'easeInQuad'});
+				var easeInCubic = new SmoothScroll('[data-easing="easeInCubic"]', {easing: 'easeInCubic'});
+				var easeInQuart = new SmoothScroll('[data-easing="easeInQuart"]', {easing: 'easeInQuart'});
+				var easeInQuint = new SmoothScroll('[data-easing="easeInQuint"]', {easing: 'easeInQuint'});
+
+				var easeInOutQuad = new SmoothScroll('[data-easing="easeInOutQuad"]', {easing: 'easeInOutQuad'});
+				var easeInOutCubic = new SmoothScroll('[data-easing="easeInOutCubic"]', {easing: 'easeInOutCubic'});
+				var easeInOutQuart = new SmoothScroll('[data-easing="easeInOutQuart"]', {easing: 'easeInOutQuart'});
+				var easeInOutQuint = new SmoothScroll('[data-easing="easeInOutQuint"]', {easing: 'easeInOutQuint'});
+
+				var easeOutQuad = new SmoothScroll('[data-easing="easeOutQuad"]', {easing: 'easeOutQuad'});
+				var easeOutCubic = new SmoothScroll('[data-easing="easeOutCubic"]', {easing: 'easeOutCubic'});
+				var easeOutQuart = new SmoothScroll('[data-easing="easeOutQuart"]', {easing: 'easeOutQuart'});
+				var easeOutQuint = new SmoothScroll('[data-easing="easeOutQuint"]', {easing: 'easeOutQuint'});
+			}
+
+			// // Log scroll events
+			// var logScrollEvent = function (event) {
+			// 	console.log('type:', event.type);
+			// 	console.log('anchor:', event.detail.anchor);
+			// 	console.log('toggle:', event.detail.toggle);
+			// };
+			// document.addEventListener('scrollStart', logScrollEvent, false);
+			// document.addEventListener('scrollStop', logScrollEvent, false);
+			// document.addEventListener('scrollCancel', logScrollEvent, false);
 		</script>
 
 
diff --git a/src/docs/speed.md b/src/docs/speed.md
new file mode 100644
index 0000000..93b9620
--- /dev/null
+++ b/src/docs/speed.md
@@ -0,0 +1,25 @@
+<p>
+	<a href="#bazinga">Click Me</a><br>
+	<a href="#1@#%^-bottom">Or me</a>
+</p>
+
+<p>
+	.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
+	.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
+	.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.
+</p>
+
+<p id="bazinga"><a href="#1@#%^-bottom">Bazinga!</a></p>
+
+<p>
+	.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
+	.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
+	.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.
+	.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
+	.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
+	.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.
+</p>
+
+<p id="1@#%^-bottom"><a href="#top">Back to the top</a></p>
+
+<p>.<br>.<br>.<br>.<br>.</p>
\ No newline at end of file
diff --git a/src/js/smooth-scroll.js b/src/js/smooth-scroll.js
index 34459aa..8c96e0a 100755
--- a/src/js/smooth-scroll.js
+++ b/src/js/smooth-scroll.js
@@ -17,15 +17,21 @@
 	//
 
 	var defaults = {
+
 		// Selectors
 		ignore: '[data-scroll-ignore]',
 		header: null,
 		topOnEmptyHash: true,
 
-		// Speed & Easing
+		// Speed & Duration
 		speed: 500,
+		speedAsDuration: false,
+		durationMax: null,
+		durationMin: null,
 		clip: true,
 		offset: 0,
+
+		// Easing
 		easing: 'easeInOutCubic',
 		customEasing: null,
 
@@ -35,6 +41,7 @@
 
 		// Custom Events
 		emitEvents: true
+
 	};
 
 
@@ -56,31 +63,19 @@
 	};
 
 	/**
-	 * Merge two or more objects. Returns a new object.
-	 * @param {Object}   objects  The objects to merge together
-	 * @returns {Object}          Merged values of defaults and options
+	 * Merge two or more objects together.
+	 * @param   {Object}   objects  The objects to merge together
+	 * @returns {Object}            Merged values of defaults and options
 	 */
 	var extend = function () {
-
-		// Variables
-		var extended = {};
-
-		// Merge the object into the extended object
-		var merge = function (obj) {
-			for (var prop in obj) {
-				if (obj.hasOwnProperty(prop)) {
-					extended[prop] = obj[prop];
-				}
+		var merged = {};
+		Array.prototype.forEach.call(arguments, function (obj) {
+			for (var key in obj) {
+				if (!obj.hasOwnProperty(key)) return;
+				merged[key] = obj[key];
 			}
-		};
-
-		// Loop through each object and conduct a merge
-		for (var i = 0; i < arguments.length; i++) {
-			merge(arguments[i]);
-		}
-
-		return extended;
-
+		});
+		return merged;
 	};
 
 	/**
@@ -279,6 +274,19 @@
 		return !header ? 0 : (getHeight(header) + header.offsetTop);
 	};
 
+	/**
+	 * Calculate the speed to use for the animation
+	 * @param  {Number} distance The distance to travel
+	 * @param  {Object} settings The plugin settings
+	 * @return {Number}          How fast to animate
+	 */
+	var getSpeed = function (distance, settings) {
+		var speed = settings.speedAsDuration ? settings.speed : Math.abs(distance / 1000 * settings.speed);
+		if (settings.durationMax && speed > settings.durationMax) return settings.durationMax;
+		if (settings.durationMin && speed < settings.durationMin) return settings.durationMin;
+		return speed;
+	};
+
 	/**
 	 * Update the URL
 	 * @param  {Node}    anchor  The anchor that was scrolled to
@@ -389,25 +397,26 @@
 		smoothScroll.animateScroll = function (anchor, toggle, options) {
 
 			// Local settings
-			var animateSettings = extend(settings || defaults, options || {}); // Merge user options with defaults
+			var _settings = extend(settings || defaults, options || {}); // Merge user options with defaults
 
 			// Selectors and variables
 			var isNum = Object.prototype.toString.call(anchor) === '[object Number]' ? true : false;
 			var anchorElem = isNum || !anchor.tagName ? null : anchor;
 			if (!isNum && !anchorElem) return;
 			var startLocation = window.pageYOffset; // Current location on the page
-			if (animateSettings.header && !fixedHeader) {
+			if (_settings.header && !fixedHeader) {
 				// Get the fixed header if not already set
-				fixedHeader = document.querySelector(animateSettings.header);
+				fixedHeader = document.querySelector(_settings.header);
 			}
 			if (!headerHeight) {
 				// Get the height of a fixed header if one exists and not already set
 				headerHeight = getHeaderHeight(fixedHeader);
 			}
-			var endLocation = isNum ? anchor : getEndLocation(anchorElem, headerHeight, parseInt((typeof animateSettings.offset === 'function' ? animateSettings.offset(anchor, toggle) : animateSettings.offset), 10), animateSettings.clip); // Location to scroll to
+			var endLocation = isNum ? anchor : getEndLocation(anchorElem, headerHeight, parseInt((typeof _settings.offset === 'function' ? _settings.offset(anchor, toggle) : _settings.offset), 10), _settings.clip); // Location to scroll to
 			var distance = endLocation - startLocation; // distance to travel
 			var documentHeight = getDocumentHeight();
 			var timeLapsed = 0;
+			var speed = getSpeed(distance, _settings);
 			var start, percentage, position;
 
 			/**
@@ -431,7 +440,7 @@
 					adjustFocus(anchor, endLocation, isNum);
 
 					// Emit a custom event
-					emitEvent('scrollStop', animateSettings, anchor, toggle);
+					emitEvent('scrollStop', _settings, anchor, toggle);
 
 					// Reset start
 					start = null;
@@ -448,9 +457,9 @@
 			var loopAnimateScroll = function (timestamp) {
 				if (!start) { start = timestamp; }
 				timeLapsed += timestamp - start;
-				percentage = (timeLapsed / parseInt(animateSettings.speed, 10));
+				percentage = (timeLapsed / parseInt(speed, 10));
 				percentage = (percentage > 1) ? 1 : percentage;
-				position = startLocation + (distance * easingPattern(animateSettings, percentage));
+				position = startLocation + (distance * easingPattern(_settings, percentage));
 				window.scrollTo(0, Math.floor(position));
 				if (!stopAnimateScroll(position, endLocation)) {
 					animationInterval = window.requestAnimationFrame(loopAnimateScroll);
@@ -467,10 +476,10 @@
 			}
 
 			// Update the URL
-			updateURL(anchor, isNum, animateSettings);
+			updateURL(anchor, isNum, _settings);
 
 			// Emit a custom event
-			emitEvent('scrollStart', animateSettings, anchor, toggle);
+			emitEvent('scrollStart', _settings, anchor, toggle);
 
 			// Start scrolling animation
 			smoothScroll.cancelScroll(true);
@@ -518,9 +527,10 @@
 		 * Animate scroll on popstate events
 		 */
 		var popstateHandler = function (event) {
+
 			// Stop if history.state doesn't exist (ex. if clicking on a broken anchor link).
 			// fixes `Cannot read property 'smoothScroll' of null` error getting thrown.
-			if (history.state === null) return; 
+			if (history.state === null) return;
 
 			// Only run if state is a popstate record for this instantiation
 			if (!history.state.smoothScroll || history.state.smoothScroll !== JSON.stringify(settings)) return;

From ab611a1395029f869d5eab17db784ff39dc72726 Mon Sep 17 00:00:00 2001
From: cferdinandi <chris@gomakethings.com>
Date: Mon, 19 Nov 2018 16:31:53 -0500
Subject: [PATCH 18/51] Fix jump when no history.state
 https://github.com/cferdinandi/smooth-scroll/issues/441

---
 dist/smooth-scroll.js                    | 34 +++++++++++++++++++++---
 dist/smooth-scroll.min.js                |  4 +--
 dist/smooth-scroll.polyfills.js          | 34 +++++++++++++++++++++---
 dist/smooth-scroll.polyfills.min.js      |  4 +--
 docs/dist/smooth-scroll.js               | 34 +++++++++++++++++++++---
 docs/dist/smooth-scroll.min.js           |  4 +--
 docs/dist/smooth-scroll.polyfills.js     | 34 +++++++++++++++++++++---
 docs/dist/smooth-scroll.polyfills.min.js |  4 +--
 docs/index.html                          |  2 +-
 docs/speed.html                          |  2 +-
 package.json                             |  2 +-
 src/docs/_templates/_footer.html         |  2 +-
 src/js/smooth-scroll.js                  | 32 +++++++++++++++++++---
 13 files changed, 161 insertions(+), 31 deletions(-)

diff --git a/dist/smooth-scroll.js b/dist/smooth-scroll.js
index 958f66e..c0d21ec 100755
--- a/dist/smooth-scroll.js
+++ b/dist/smooth-scroll.js
@@ -1,5 +1,5 @@
 /*!
- * smooth-scroll v15.0.0: Animate scrolling to anchor links
+ * smooth-scroll v15.0.1: Animate scrolling to anchor links
  * (c) 2018 Chris Ferdinandi
  * MIT License
  * http://github.com/cferdinandi/smooth-scroll
@@ -294,6 +294,27 @@
 		return speed;
 	};
 
+	var setHistory = function (options) {
+
+		// Make sure this should run
+		if (!history.replaceState || !options.updateURL || history.state) return;
+
+		// Get the hash to use
+		var hash = window.location.hash;
+		hash = hash ? hash : window.pageYOffset;
+
+		// Set a default history
+		history.replaceState(
+			{
+				smoothScroll: JSON.stringify(options),
+				anchor: hash ? hash : window.pageYOffset
+			},
+			document.title,
+			hash ? hash : window.location.href
+		);
+
+	};
+
 	/**
 	 * Update the URL
 	 * @param  {Node}    anchor  The anchor that was scrolled to
@@ -526,6 +547,7 @@
 			// If anchored element exists, scroll to it
 			if (!anchor) return;
 			event.preventDefault();
+			setHistory(settings);
 			smoothScroll.animateScroll(anchor, toggle);
 
 		};
@@ -543,11 +565,15 @@
 			if (!history.state.smoothScroll || history.state.smoothScroll !== JSON.stringify(settings)) return;
 
 			// Only run if state includes an anchor
-			if (!history.state.anchor) return;
+
+			// if (!history.state.anchor && history.state.anchor !== 0) return;
 
 			// Get the anchor
-			var anchor = document.querySelector(escapeCharacters(decode(history.state.anchor)));
-			if (!anchor) return;
+			var anchor = history.state.anchor;
+			if (anchor && anchor !== 0) {
+				anchor = document.querySelector(escapeCharacters(decode(history.state.anchor)));
+				if (!anchor) return;
+			}
 
 			// Animate scroll to anchor link
 			smoothScroll.animateScroll(anchor, null, {updateURL: false});
diff --git a/dist/smooth-scroll.min.js b/dist/smooth-scroll.min.js
index c38b100..3d3aa1d 100755
--- a/dist/smooth-scroll.min.js
+++ b/dist/smooth-scroll.min.js
@@ -1,2 +1,2 @@
-/*! smooth-scroll v15.0.0 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
-!(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,speedAsDuration:!1,durationMax:null,durationMin:null,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},n=function(){return"querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype},o=function(){var e={};return Array.prototype.forEach.call(arguments,(function(t){for(var n in t){if(!t.hasOwnProperty(n))return;e[n]=t[n]}})),e},r=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)},a=function(t){return parseInt(e.getComputedStyle(t).height,10)},i=function(e){var t;try{t=decodeURIComponent(e)}catch(n){t=e}return t},u=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,r=-1,a="",i=n.charCodeAt(0);++r<o;){if(0===(t=n.charCodeAt(r)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===r&&t>=48&&t<=57||1===r&&t>=48&&t<=57&&45===i?a+="\\"+t.toString(16)+" ":a+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(r):"\\"+n.charAt(r)}var u;try{u=decodeURIComponent("#"+a)}catch(e){u="#"+a}return u},c=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(t,n,o,r){var a=0;if(t.offsetParent)do{a+=t.offsetTop,t=t.offsetParent}while(t);return a=Math.max(a-n-o,0),r&&(a=Math.min(a,s()-e.innerHeight)),a},d=function(e){return e?a(e)+e.offsetTop:0},f=function(e,t){var n=t.speedAsDuration?t.speed:Math.abs(e/1e3*t.speed);return t.durationMax&&n>t.durationMax?t.durationMax:t.durationMin&&n<t.durationMin?t.durationMin:n},m=function(e,t,n){t||history.pushState&&n.updateURL&&history.pushState({smoothScroll:JSON.stringify(n),anchor:e.id},document.title,e===document.documentElement?"#top":"#"+e.id)},h=function(t,n,o){0===t&&document.body.focus(),o||(t.focus(),document.activeElement!==t&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},p=function(t,n,o,r){if(n.emitEvents&&"function"==typeof e.CustomEvent){var a=new CustomEvent(t,{bubbles:!0,detail:{anchor:o,toggle:r}});document.dispatchEvent(a)}};return function(a,g){var y,v,S,E,b,O,I,M={};M.cancelScroll=function(e){cancelAnimationFrame(I),I=null,e||p("scrollCancel",y)},M.animateScroll=function(n,r,a){var i=o(y||t,a||{}),u="[object Number]"===Object.prototype.toString.call(n),g=u||!n.tagName?null:n;if(u||g){var v=e.pageYOffset;i.header&&!E&&(E=document.querySelector(i.header)),b||(b=d(E));var S,O,A,C=u?n:l(g,b,parseInt("function"==typeof i.offset?i.offset(n,r):i.offset,10),i.clip),w=C-v,L=s(),H=0,q=f(w,i),x=function(t,o){var a=e.pageYOffset;if(t==o||a==o||(v<o&&e.innerHeight+a)>=L)return M.cancelScroll(!0),h(n,o,u),p("scrollStop",i,n,r),S=null,I=null,!0},Q=function(t){S||(S=t),H+=t-S,O=H/parseInt(q,10),O=O>1?1:O,A=v+w*c(i,O),e.scrollTo(0,Math.floor(A)),x(A,C)||(I=e.requestAnimationFrame(Q),S=t)};0===e.pageYOffset&&e.scrollTo(0,0),m(n,u,i),p("scrollStart",i,n,r),M.cancelScroll(!0),e.requestAnimationFrame(Q)}};var A=function(t){if(!r()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&"closest"in t.target&&(S=t.target.closest(a))&&"a"===S.tagName.toLowerCase()&&!t.target.closest(y.ignore)&&S.hostname===e.location.hostname&&S.pathname===e.location.pathname&&/#/.test(S.href)){var n=u(i(S.hash)),o=y.topOnEmptyHash&&"#"===n?document.documentElement:document.querySelector(n);o=o||"#top"!==n?o:document.documentElement,o&&(t.preventDefault(),M.animateScroll(o,S))}},C=function(e){if(null!==history.state&&history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(y)&&history.state.anchor){var t=document.querySelector(u(i(history.state.anchor)));t&&M.animateScroll(t,null,{updateURL:!1})}},w=function(e){O||(O=setTimeout((function(){O=null,b=d(E)}),66))};return M.destroy=function(){y&&(document.removeEventListener("click",A,!1),e.removeEventListener("resize",w,!1),e.removeEventListener("popstate",C,!1),M.cancelScroll(),y=null,v=null,S=null,E=null,b=null,O=null,I=null)},M.init=function(r){if(!n())throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";M.destroy(),y=o(t,r||{}),E=y.header?document.querySelector(y.header):null,b=d(E),document.addEventListener("click",A,!1),E&&e.addEventListener("resize",w,!1),y.updateURL&&y.popstate&&e.addEventListener("popstate",C,!1)},M.init(g),M}}));
\ No newline at end of file
+/*! smooth-scroll v15.0.1 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
+!(function(t,e){"function"==typeof define&&define.amd?define([],(function(){return e(t)})):"object"==typeof exports?module.exports=e(t):t.SmoothScroll=e(t)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(t){"use strict";var e={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,speedAsDuration:!1,durationMax:null,durationMin:null,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},n=function(){return"querySelector"in document&&"addEventListener"in t&&"requestAnimationFrame"in t&&"closest"in t.Element.prototype},o=function(){var t={};return Array.prototype.forEach.call(arguments,(function(e){for(var n in e){if(!e.hasOwnProperty(n))return;t[n]=e[n]}})),t},r=function(e){return!!("matchMedia"in t&&t.matchMedia("(prefers-reduced-motion)").matches)},a=function(e){return parseInt(t.getComputedStyle(e).height,10)},i=function(t){var e;try{e=decodeURIComponent(t)}catch(n){e=t}return e},u=function(t){"#"===t.charAt(0)&&(t=t.substr(1));for(var e,n=String(t),o=n.length,r=-1,a="",i=n.charCodeAt(0);++r<o;){if(0===(e=n.charCodeAt(r)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");e>=1&&e<=31||127==e||0===r&&e>=48&&e<=57||1===r&&e>=48&&e<=57&&45===i?a+="\\"+e.toString(16)+" ":a+=e>=128||45===e||95===e||e>=48&&e<=57||e>=65&&e<=90||e>=97&&e<=122?n.charAt(r):"\\"+n.charAt(r)}var u;try{u=decodeURIComponent("#"+a)}catch(t){u="#"+a}return u},c=function(t,e){var n;return"easeInQuad"===t.easing&&(n=e*e),"easeOutQuad"===t.easing&&(n=e*(2-e)),"easeInOutQuad"===t.easing&&(n=e<.5?2*e*e:(4-2*e)*e-1),"easeInCubic"===t.easing&&(n=e*e*e),"easeOutCubic"===t.easing&&(n=--e*e*e+1),"easeInOutCubic"===t.easing&&(n=e<.5?4*e*e*e:(e-1)*(2*e-2)*(2*e-2)+1),"easeInQuart"===t.easing&&(n=e*e*e*e),"easeOutQuart"===t.easing&&(n=1- --e*e*e*e),"easeInOutQuart"===t.easing&&(n=e<.5?8*e*e*e*e:1-8*--e*e*e*e),"easeInQuint"===t.easing&&(n=e*e*e*e*e),"easeOutQuint"===t.easing&&(n=1+--e*e*e*e*e),"easeInOutQuint"===t.easing&&(n=e<.5?16*e*e*e*e*e:1+16*--e*e*e*e*e),t.customEasing&&(n=t.customEasing(e)),n||e},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(e,n,o,r){var a=0;if(e.offsetParent)do{a+=e.offsetTop,e=e.offsetParent}while(e);return a=Math.max(a-n-o,0),r&&(a=Math.min(a,s()-t.innerHeight)),a},d=function(t){return t?a(t)+t.offsetTop:0},f=function(t,e){var n=e.speedAsDuration?e.speed:Math.abs(t/1e3*e.speed);return e.durationMax&&n>e.durationMax?e.durationMax:e.durationMin&&n<e.durationMin?e.durationMin:n},m=function(e){if(history.replaceState&&e.updateURL&&!history.state){var n=t.location.hash;n=n||t.pageYOffset,history.replaceState({smoothScroll:JSON.stringify(e),anchor:n||t.pageYOffset},document.title,n||t.location.href)}},h=function(t,e,n){e||history.pushState&&n.updateURL&&history.pushState({smoothScroll:JSON.stringify(n),anchor:t.id},document.title,t===document.documentElement?"#top":"#"+t.id)},p=function(e,n,o){0===e&&document.body.focus(),o||(e.focus(),document.activeElement!==e&&(e.setAttribute("tabindex","-1"),e.focus(),e.style.outline="none"),t.scrollTo(0,n))},g=function(e,n,o,r){if(n.emitEvents&&"function"==typeof t.CustomEvent){var a=new CustomEvent(e,{bubbles:!0,detail:{anchor:o,toggle:r}});document.dispatchEvent(a)}};return function(a,y){var v,S,E,b,O,I,M,A={};A.cancelScroll=function(t){cancelAnimationFrame(M),M=null,t||g("scrollCancel",v)},A.animateScroll=function(n,r,a){var i=o(v||e,a||{}),u="[object Number]"===Object.prototype.toString.call(n),m=u||!n.tagName?null:n;if(u||m){var y=t.pageYOffset;i.header&&!b&&(b=document.querySelector(i.header)),O||(O=d(b));var S,E,I,C=u?n:l(m,O,parseInt("function"==typeof i.offset?i.offset(n,r):i.offset,10),i.clip),w=C-y,L=s(),H=0,q=f(w,i),x=function(e,o){var a=t.pageYOffset;if(e==o||a==o||(y<o&&t.innerHeight+a)>=L)return A.cancelScroll(!0),p(n,o,u),g("scrollStop",i,n,r),S=null,M=null,!0},Q=function(e){S||(S=e),H+=e-S,E=H/parseInt(q,10),E=E>1?1:E,I=y+w*c(i,E),t.scrollTo(0,Math.floor(I)),x(I,C)||(M=t.requestAnimationFrame(Q),S=e)};0===t.pageYOffset&&t.scrollTo(0,0),h(n,u,i),g("scrollStart",i,n,r),A.cancelScroll(!0),t.requestAnimationFrame(Q)}};var C=function(e){if(!r()&&0===e.button&&!e.metaKey&&!e.ctrlKey&&"closest"in e.target&&(E=e.target.closest(a))&&"a"===E.tagName.toLowerCase()&&!e.target.closest(v.ignore)&&E.hostname===t.location.hostname&&E.pathname===t.location.pathname&&/#/.test(E.href)){var n=u(i(E.hash)),o=v.topOnEmptyHash&&"#"===n?document.documentElement:document.querySelector(n);o=o||"#top"!==n?o:document.documentElement,o&&(e.preventDefault(),m(v),A.animateScroll(o,E))}},w=function(t){if(null!==history.state&&history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(v)){var e=history.state.anchor;e&&0!==e&&!(e=document.querySelector(u(i(history.state.anchor))))||A.animateScroll(e,null,{updateURL:!1})}},L=function(t){I||(I=setTimeout((function(){I=null,O=d(b)}),66))};return A.destroy=function(){v&&(document.removeEventListener("click",C,!1),t.removeEventListener("resize",L,!1),t.removeEventListener("popstate",w,!1),A.cancelScroll(),v=null,S=null,E=null,b=null,O=null,I=null,M=null)},A.init=function(r){if(!n())throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";A.destroy(),v=o(e,r||{}),b=v.header?document.querySelector(v.header):null,O=d(b),document.addEventListener("click",C,!1),b&&t.addEventListener("resize",L,!1),v.updateURL&&v.popstate&&t.addEventListener("popstate",w,!1)},A.init(y),A}}));
\ No newline at end of file
diff --git a/dist/smooth-scroll.polyfills.js b/dist/smooth-scroll.polyfills.js
index 98262ed..9cc4a19 100755
--- a/dist/smooth-scroll.polyfills.js
+++ b/dist/smooth-scroll.polyfills.js
@@ -1,5 +1,5 @@
 /*!
- * smooth-scroll v15.0.0: Animate scrolling to anchor links
+ * smooth-scroll v15.0.1: Animate scrolling to anchor links
  * (c) 2018 Chris Ferdinandi
  * MIT License
  * http://github.com/cferdinandi/smooth-scroll
@@ -364,6 +364,27 @@ if (window.Element && !Element.prototype.closest) {
 		return speed;
 	};
 
+	var setHistory = function (options) {
+
+		// Make sure this should run
+		if (!history.replaceState || !options.updateURL || history.state) return;
+
+		// Get the hash to use
+		var hash = window.location.hash;
+		hash = hash ? hash : window.pageYOffset;
+
+		// Set a default history
+		history.replaceState(
+			{
+				smoothScroll: JSON.stringify(options),
+				anchor: hash ? hash : window.pageYOffset
+			},
+			document.title,
+			hash ? hash : window.location.href
+		);
+
+	};
+
 	/**
 	 * Update the URL
 	 * @param  {Node}    anchor  The anchor that was scrolled to
@@ -596,6 +617,7 @@ if (window.Element && !Element.prototype.closest) {
 			// If anchored element exists, scroll to it
 			if (!anchor) return;
 			event.preventDefault();
+			setHistory(settings);
 			smoothScroll.animateScroll(anchor, toggle);
 
 		};
@@ -613,11 +635,15 @@ if (window.Element && !Element.prototype.closest) {
 			if (!history.state.smoothScroll || history.state.smoothScroll !== JSON.stringify(settings)) return;
 
 			// Only run if state includes an anchor
-			if (!history.state.anchor) return;
+
+			// if (!history.state.anchor && history.state.anchor !== 0) return;
 
 			// Get the anchor
-			var anchor = document.querySelector(escapeCharacters(decode(history.state.anchor)));
-			if (!anchor) return;
+			var anchor = history.state.anchor;
+			if (anchor && anchor !== 0) {
+				anchor = document.querySelector(escapeCharacters(decode(history.state.anchor)));
+				if (!anchor) return;
+			}
 
 			// Animate scroll to anchor link
 			smoothScroll.animateScroll(anchor, null, {updateURL: false});
diff --git a/dist/smooth-scroll.polyfills.min.js b/dist/smooth-scroll.polyfills.min.js
index cefa87e..7287b54 100755
--- a/dist/smooth-scroll.polyfills.min.js
+++ b/dist/smooth-scroll.polyfills.min.js
@@ -1,2 +1,2 @@
-/*! smooth-scroll v15.0.0 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
-window.Element&&!Element.prototype.closest&&(Element.prototype.closest=function(e){var t,n=(this.document||this.ownerDocument).querySelectorAll(e),o=this;do{for(t=n.length;--t>=0&&n.item(t)!==o;);}while(t<0&&(o=o.parentElement));return o}),(function(){function e(e,t){t=t||{bubbles:!1,cancelable:!1,detail:void 0};var n=document.createEvent("CustomEvent");return n.initCustomEvent(e,t.bubbles,t.cancelable,t.detail),n}if("function"==typeof window.CustomEvent)return!1;e.prototype=window.Event.prototype,window.CustomEvent=e})(),(function(){for(var e=0,t=["ms","moz","webkit","o"],n=0;n<t.length&&!window.requestAnimationFrame;++n)window.requestAnimationFrame=window[t[n]+"RequestAnimationFrame"],window.cancelAnimationFrame=window[t[n]+"CancelAnimationFrame"]||window[t[n]+"CancelRequestAnimationFrame"];window.requestAnimationFrame||(window.requestAnimationFrame=function(t,n){var o=(new Date).getTime(),i=Math.max(0,16-(o-e)),r=window.setTimeout((function(){t(o+i)}),i);return e=o+i,r}),window.cancelAnimationFrame||(window.cancelAnimationFrame=function(e){clearTimeout(e)})})(),(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,speedAsDuration:!1,durationMax:null,durationMin:null,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},n=function(){return"querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype},o=function(){var e={};return Array.prototype.forEach.call(arguments,(function(t){for(var n in t){if(!t.hasOwnProperty(n))return;e[n]=t[n]}})),e},i=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)},r=function(t){return parseInt(e.getComputedStyle(t).height,10)},a=function(e){var t;try{t=decodeURIComponent(e)}catch(n){t=e}return t},u=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,i=-1,r="",a=n.charCodeAt(0);++i<o;){if(0===(t=n.charCodeAt(i)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===i&&t>=48&&t<=57||1===i&&t>=48&&t<=57&&45===a?r+="\\"+t.toString(16)+" ":r+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(i):"\\"+n.charAt(i)}var u;try{u=decodeURIComponent("#"+r)}catch(e){u="#"+r}return u},c=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(t,n,o,i){var r=0;if(t.offsetParent)do{r+=t.offsetTop,t=t.offsetParent}while(t);return r=Math.max(r-n-o,0),i&&(r=Math.min(r,s()-e.innerHeight)),r},m=function(e){return e?r(e)+e.offsetTop:0},d=function(e,t){var n=t.speedAsDuration?t.speed:Math.abs(e/1e3*t.speed);return t.durationMax&&n>t.durationMax?t.durationMax:t.durationMin&&n<t.durationMin?t.durationMin:n},f=function(e,t,n){t||history.pushState&&n.updateURL&&history.pushState({smoothScroll:JSON.stringify(n),anchor:e.id},document.title,e===document.documentElement?"#top":"#"+e.id)},h=function(t,n,o){0===t&&document.body.focus(),o||(t.focus(),document.activeElement!==t&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},p=function(t,n,o,i){if(n.emitEvents&&"function"==typeof e.CustomEvent){var r=new CustomEvent(t,{bubbles:!0,detail:{anchor:o,toggle:i}});document.dispatchEvent(r)}};return function(r,g){var v,w,y,E,b,S,A,C={};C.cancelScroll=function(e){cancelAnimationFrame(A),A=null,e||p("scrollCancel",v)},C.animateScroll=function(n,i,r){var a=o(v||t,r||{}),u="[object Number]"===Object.prototype.toString.call(n),g=u||!n.tagName?null:n;if(u||g){var w=e.pageYOffset;a.header&&!E&&(E=document.querySelector(a.header)),b||(b=m(E));var y,S,O,I=u?n:l(g,b,parseInt("function"==typeof a.offset?a.offset(n,i):a.offset,10),a.clip),q=I-w,M=s(),F=0,L=d(q,a),x=function(t,o){var r=e.pageYOffset;if(t==o||r==o||(w<o&&e.innerHeight+r)>=M)return C.cancelScroll(!0),h(n,o,u),p("scrollStop",a,n,i),y=null,A=null,!0},H=function(t){y||(y=t),F+=t-y,S=F/parseInt(L,10),S=S>1?1:S,O=w+q*c(a,S),e.scrollTo(0,Math.floor(O)),x(O,I)||(A=e.requestAnimationFrame(H),y=t)};0===e.pageYOffset&&e.scrollTo(0,0),f(n,u,a),p("scrollStart",a,n,i),C.cancelScroll(!0),e.requestAnimationFrame(H)}};var O=function(t){if(!i()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&"closest"in t.target&&(y=t.target.closest(r))&&"a"===y.tagName.toLowerCase()&&!t.target.closest(v.ignore)&&y.hostname===e.location.hostname&&y.pathname===e.location.pathname&&/#/.test(y.href)){var n=u(a(y.hash)),o=v.topOnEmptyHash&&"#"===n?document.documentElement:document.querySelector(n);o=o||"#top"!==n?o:document.documentElement,o&&(t.preventDefault(),C.animateScroll(o,y))}},I=function(e){if(null!==history.state&&history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(v)&&history.state.anchor){var t=document.querySelector(u(a(history.state.anchor)));t&&C.animateScroll(t,null,{updateURL:!1})}},q=function(e){S||(S=setTimeout((function(){S=null,b=m(E)}),66))};return C.destroy=function(){v&&(document.removeEventListener("click",O,!1),e.removeEventListener("resize",q,!1),e.removeEventListener("popstate",I,!1),C.cancelScroll(),v=null,w=null,y=null,E=null,b=null,S=null,A=null)},C.init=function(i){if(!n())throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";C.destroy(),v=o(t,i||{}),E=v.header?document.querySelector(v.header):null,b=m(E),document.addEventListener("click",O,!1),E&&e.addEventListener("resize",q,!1),v.updateURL&&v.popstate&&e.addEventListener("popstate",I,!1)},C.init(g),C}}));
\ No newline at end of file
+/*! smooth-scroll v15.0.1 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
+window.Element&&!Element.prototype.closest&&(Element.prototype.closest=function(e){var t,n=(this.document||this.ownerDocument).querySelectorAll(e),o=this;do{for(t=n.length;--t>=0&&n.item(t)!==o;);}while(t<0&&(o=o.parentElement));return o}),(function(){function e(e,t){t=t||{bubbles:!1,cancelable:!1,detail:void 0};var n=document.createEvent("CustomEvent");return n.initCustomEvent(e,t.bubbles,t.cancelable,t.detail),n}if("function"==typeof window.CustomEvent)return!1;e.prototype=window.Event.prototype,window.CustomEvent=e})(),(function(){for(var e=0,t=["ms","moz","webkit","o"],n=0;n<t.length&&!window.requestAnimationFrame;++n)window.requestAnimationFrame=window[t[n]+"RequestAnimationFrame"],window.cancelAnimationFrame=window[t[n]+"CancelAnimationFrame"]||window[t[n]+"CancelRequestAnimationFrame"];window.requestAnimationFrame||(window.requestAnimationFrame=function(t,n){var o=(new Date).getTime(),i=Math.max(0,16-(o-e)),r=window.setTimeout((function(){t(o+i)}),i);return e=o+i,r}),window.cancelAnimationFrame||(window.cancelAnimationFrame=function(e){clearTimeout(e)})})(),(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,speedAsDuration:!1,durationMax:null,durationMin:null,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},n=function(){return"querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype},o=function(){var e={};return Array.prototype.forEach.call(arguments,(function(t){for(var n in t){if(!t.hasOwnProperty(n))return;e[n]=t[n]}})),e},i=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)},r=function(t){return parseInt(e.getComputedStyle(t).height,10)},a=function(e){var t;try{t=decodeURIComponent(e)}catch(n){t=e}return t},u=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,i=-1,r="",a=n.charCodeAt(0);++i<o;){if(0===(t=n.charCodeAt(i)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===i&&t>=48&&t<=57||1===i&&t>=48&&t<=57&&45===a?r+="\\"+t.toString(16)+" ":r+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(i):"\\"+n.charAt(i)}var u;try{u=decodeURIComponent("#"+r)}catch(e){u="#"+r}return u},c=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(t,n,o,i){var r=0;if(t.offsetParent)do{r+=t.offsetTop,t=t.offsetParent}while(t);return r=Math.max(r-n-o,0),i&&(r=Math.min(r,s()-e.innerHeight)),r},m=function(e){return e?r(e)+e.offsetTop:0},d=function(e,t){var n=t.speedAsDuration?t.speed:Math.abs(e/1e3*t.speed);return t.durationMax&&n>t.durationMax?t.durationMax:t.durationMin&&n<t.durationMin?t.durationMin:n},f=function(t){if(history.replaceState&&t.updateURL&&!history.state){var n=e.location.hash;n=n||e.pageYOffset,history.replaceState({smoothScroll:JSON.stringify(t),anchor:n||e.pageYOffset},document.title,n||e.location.href)}},h=function(e,t,n){t||history.pushState&&n.updateURL&&history.pushState({smoothScroll:JSON.stringify(n),anchor:e.id},document.title,e===document.documentElement?"#top":"#"+e.id)},p=function(t,n,o){0===t&&document.body.focus(),o||(t.focus(),document.activeElement!==t&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},g=function(t,n,o,i){if(n.emitEvents&&"function"==typeof e.CustomEvent){var r=new CustomEvent(t,{bubbles:!0,detail:{anchor:o,toggle:i}});document.dispatchEvent(r)}};return function(r,v){var y,w,E,S,b,A,O,C={};C.cancelScroll=function(e){cancelAnimationFrame(O),O=null,e||g("scrollCancel",y)},C.animateScroll=function(n,i,r){var a=o(y||t,r||{}),u="[object Number]"===Object.prototype.toString.call(n),f=u||!n.tagName?null:n;if(u||f){var v=e.pageYOffset;a.header&&!S&&(S=document.querySelector(a.header)),b||(b=m(S));var w,E,A,I=u?n:l(f,b,parseInt("function"==typeof a.offset?a.offset(n,i):a.offset,10),a.clip),q=I-v,M=s(),F=0,L=d(q,a),x=function(t,o){var r=e.pageYOffset;if(t==o||r==o||(v<o&&e.innerHeight+r)>=M)return C.cancelScroll(!0),p(n,o,u),g("scrollStop",a,n,i),w=null,O=null,!0},H=function(t){w||(w=t),F+=t-w,E=F/parseInt(L,10),E=E>1?1:E,A=v+q*c(a,E),e.scrollTo(0,Math.floor(A)),x(A,I)||(O=e.requestAnimationFrame(H),w=t)};0===e.pageYOffset&&e.scrollTo(0,0),h(n,u,a),g("scrollStart",a,n,i),C.cancelScroll(!0),e.requestAnimationFrame(H)}};var I=function(t){if(!i()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&"closest"in t.target&&(E=t.target.closest(r))&&"a"===E.tagName.toLowerCase()&&!t.target.closest(y.ignore)&&E.hostname===e.location.hostname&&E.pathname===e.location.pathname&&/#/.test(E.href)){var n=u(a(E.hash)),o=y.topOnEmptyHash&&"#"===n?document.documentElement:document.querySelector(n);o=o||"#top"!==n?o:document.documentElement,o&&(t.preventDefault(),f(y),C.animateScroll(o,E))}},q=function(e){if(null!==history.state&&history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(y)){var t=history.state.anchor;t&&0!==t&&!(t=document.querySelector(u(a(history.state.anchor))))||C.animateScroll(t,null,{updateURL:!1})}},M=function(e){A||(A=setTimeout((function(){A=null,b=m(S)}),66))};return C.destroy=function(){y&&(document.removeEventListener("click",I,!1),e.removeEventListener("resize",M,!1),e.removeEventListener("popstate",q,!1),C.cancelScroll(),y=null,w=null,E=null,S=null,b=null,A=null,O=null)},C.init=function(i){if(!n())throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";C.destroy(),y=o(t,i||{}),S=y.header?document.querySelector(y.header):null,b=m(S),document.addEventListener("click",I,!1),S&&e.addEventListener("resize",M,!1),y.updateURL&&y.popstate&&e.addEventListener("popstate",q,!1)},C.init(v),C}}));
\ No newline at end of file
diff --git a/docs/dist/smooth-scroll.js b/docs/dist/smooth-scroll.js
index 958f66e..c0d21ec 100755
--- a/docs/dist/smooth-scroll.js
+++ b/docs/dist/smooth-scroll.js
@@ -1,5 +1,5 @@
 /*!
- * smooth-scroll v15.0.0: Animate scrolling to anchor links
+ * smooth-scroll v15.0.1: Animate scrolling to anchor links
  * (c) 2018 Chris Ferdinandi
  * MIT License
  * http://github.com/cferdinandi/smooth-scroll
@@ -294,6 +294,27 @@
 		return speed;
 	};
 
+	var setHistory = function (options) {
+
+		// Make sure this should run
+		if (!history.replaceState || !options.updateURL || history.state) return;
+
+		// Get the hash to use
+		var hash = window.location.hash;
+		hash = hash ? hash : window.pageYOffset;
+
+		// Set a default history
+		history.replaceState(
+			{
+				smoothScroll: JSON.stringify(options),
+				anchor: hash ? hash : window.pageYOffset
+			},
+			document.title,
+			hash ? hash : window.location.href
+		);
+
+	};
+
 	/**
 	 * Update the URL
 	 * @param  {Node}    anchor  The anchor that was scrolled to
@@ -526,6 +547,7 @@
 			// If anchored element exists, scroll to it
 			if (!anchor) return;
 			event.preventDefault();
+			setHistory(settings);
 			smoothScroll.animateScroll(anchor, toggle);
 
 		};
@@ -543,11 +565,15 @@
 			if (!history.state.smoothScroll || history.state.smoothScroll !== JSON.stringify(settings)) return;
 
 			// Only run if state includes an anchor
-			if (!history.state.anchor) return;
+
+			// if (!history.state.anchor && history.state.anchor !== 0) return;
 
 			// Get the anchor
-			var anchor = document.querySelector(escapeCharacters(decode(history.state.anchor)));
-			if (!anchor) return;
+			var anchor = history.state.anchor;
+			if (anchor && anchor !== 0) {
+				anchor = document.querySelector(escapeCharacters(decode(history.state.anchor)));
+				if (!anchor) return;
+			}
 
 			// Animate scroll to anchor link
 			smoothScroll.animateScroll(anchor, null, {updateURL: false});
diff --git a/docs/dist/smooth-scroll.min.js b/docs/dist/smooth-scroll.min.js
index c38b100..3d3aa1d 100755
--- a/docs/dist/smooth-scroll.min.js
+++ b/docs/dist/smooth-scroll.min.js
@@ -1,2 +1,2 @@
-/*! smooth-scroll v15.0.0 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
-!(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,speedAsDuration:!1,durationMax:null,durationMin:null,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},n=function(){return"querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype},o=function(){var e={};return Array.prototype.forEach.call(arguments,(function(t){for(var n in t){if(!t.hasOwnProperty(n))return;e[n]=t[n]}})),e},r=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)},a=function(t){return parseInt(e.getComputedStyle(t).height,10)},i=function(e){var t;try{t=decodeURIComponent(e)}catch(n){t=e}return t},u=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,r=-1,a="",i=n.charCodeAt(0);++r<o;){if(0===(t=n.charCodeAt(r)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===r&&t>=48&&t<=57||1===r&&t>=48&&t<=57&&45===i?a+="\\"+t.toString(16)+" ":a+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(r):"\\"+n.charAt(r)}var u;try{u=decodeURIComponent("#"+a)}catch(e){u="#"+a}return u},c=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(t,n,o,r){var a=0;if(t.offsetParent)do{a+=t.offsetTop,t=t.offsetParent}while(t);return a=Math.max(a-n-o,0),r&&(a=Math.min(a,s()-e.innerHeight)),a},d=function(e){return e?a(e)+e.offsetTop:0},f=function(e,t){var n=t.speedAsDuration?t.speed:Math.abs(e/1e3*t.speed);return t.durationMax&&n>t.durationMax?t.durationMax:t.durationMin&&n<t.durationMin?t.durationMin:n},m=function(e,t,n){t||history.pushState&&n.updateURL&&history.pushState({smoothScroll:JSON.stringify(n),anchor:e.id},document.title,e===document.documentElement?"#top":"#"+e.id)},h=function(t,n,o){0===t&&document.body.focus(),o||(t.focus(),document.activeElement!==t&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},p=function(t,n,o,r){if(n.emitEvents&&"function"==typeof e.CustomEvent){var a=new CustomEvent(t,{bubbles:!0,detail:{anchor:o,toggle:r}});document.dispatchEvent(a)}};return function(a,g){var y,v,S,E,b,O,I,M={};M.cancelScroll=function(e){cancelAnimationFrame(I),I=null,e||p("scrollCancel",y)},M.animateScroll=function(n,r,a){var i=o(y||t,a||{}),u="[object Number]"===Object.prototype.toString.call(n),g=u||!n.tagName?null:n;if(u||g){var v=e.pageYOffset;i.header&&!E&&(E=document.querySelector(i.header)),b||(b=d(E));var S,O,A,C=u?n:l(g,b,parseInt("function"==typeof i.offset?i.offset(n,r):i.offset,10),i.clip),w=C-v,L=s(),H=0,q=f(w,i),x=function(t,o){var a=e.pageYOffset;if(t==o||a==o||(v<o&&e.innerHeight+a)>=L)return M.cancelScroll(!0),h(n,o,u),p("scrollStop",i,n,r),S=null,I=null,!0},Q=function(t){S||(S=t),H+=t-S,O=H/parseInt(q,10),O=O>1?1:O,A=v+w*c(i,O),e.scrollTo(0,Math.floor(A)),x(A,C)||(I=e.requestAnimationFrame(Q),S=t)};0===e.pageYOffset&&e.scrollTo(0,0),m(n,u,i),p("scrollStart",i,n,r),M.cancelScroll(!0),e.requestAnimationFrame(Q)}};var A=function(t){if(!r()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&"closest"in t.target&&(S=t.target.closest(a))&&"a"===S.tagName.toLowerCase()&&!t.target.closest(y.ignore)&&S.hostname===e.location.hostname&&S.pathname===e.location.pathname&&/#/.test(S.href)){var n=u(i(S.hash)),o=y.topOnEmptyHash&&"#"===n?document.documentElement:document.querySelector(n);o=o||"#top"!==n?o:document.documentElement,o&&(t.preventDefault(),M.animateScroll(o,S))}},C=function(e){if(null!==history.state&&history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(y)&&history.state.anchor){var t=document.querySelector(u(i(history.state.anchor)));t&&M.animateScroll(t,null,{updateURL:!1})}},w=function(e){O||(O=setTimeout((function(){O=null,b=d(E)}),66))};return M.destroy=function(){y&&(document.removeEventListener("click",A,!1),e.removeEventListener("resize",w,!1),e.removeEventListener("popstate",C,!1),M.cancelScroll(),y=null,v=null,S=null,E=null,b=null,O=null,I=null)},M.init=function(r){if(!n())throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";M.destroy(),y=o(t,r||{}),E=y.header?document.querySelector(y.header):null,b=d(E),document.addEventListener("click",A,!1),E&&e.addEventListener("resize",w,!1),y.updateURL&&y.popstate&&e.addEventListener("popstate",C,!1)},M.init(g),M}}));
\ No newline at end of file
+/*! smooth-scroll v15.0.1 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
+!(function(t,e){"function"==typeof define&&define.amd?define([],(function(){return e(t)})):"object"==typeof exports?module.exports=e(t):t.SmoothScroll=e(t)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(t){"use strict";var e={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,speedAsDuration:!1,durationMax:null,durationMin:null,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},n=function(){return"querySelector"in document&&"addEventListener"in t&&"requestAnimationFrame"in t&&"closest"in t.Element.prototype},o=function(){var t={};return Array.prototype.forEach.call(arguments,(function(e){for(var n in e){if(!e.hasOwnProperty(n))return;t[n]=e[n]}})),t},r=function(e){return!!("matchMedia"in t&&t.matchMedia("(prefers-reduced-motion)").matches)},a=function(e){return parseInt(t.getComputedStyle(e).height,10)},i=function(t){var e;try{e=decodeURIComponent(t)}catch(n){e=t}return e},u=function(t){"#"===t.charAt(0)&&(t=t.substr(1));for(var e,n=String(t),o=n.length,r=-1,a="",i=n.charCodeAt(0);++r<o;){if(0===(e=n.charCodeAt(r)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");e>=1&&e<=31||127==e||0===r&&e>=48&&e<=57||1===r&&e>=48&&e<=57&&45===i?a+="\\"+e.toString(16)+" ":a+=e>=128||45===e||95===e||e>=48&&e<=57||e>=65&&e<=90||e>=97&&e<=122?n.charAt(r):"\\"+n.charAt(r)}var u;try{u=decodeURIComponent("#"+a)}catch(t){u="#"+a}return u},c=function(t,e){var n;return"easeInQuad"===t.easing&&(n=e*e),"easeOutQuad"===t.easing&&(n=e*(2-e)),"easeInOutQuad"===t.easing&&(n=e<.5?2*e*e:(4-2*e)*e-1),"easeInCubic"===t.easing&&(n=e*e*e),"easeOutCubic"===t.easing&&(n=--e*e*e+1),"easeInOutCubic"===t.easing&&(n=e<.5?4*e*e*e:(e-1)*(2*e-2)*(2*e-2)+1),"easeInQuart"===t.easing&&(n=e*e*e*e),"easeOutQuart"===t.easing&&(n=1- --e*e*e*e),"easeInOutQuart"===t.easing&&(n=e<.5?8*e*e*e*e:1-8*--e*e*e*e),"easeInQuint"===t.easing&&(n=e*e*e*e*e),"easeOutQuint"===t.easing&&(n=1+--e*e*e*e*e),"easeInOutQuint"===t.easing&&(n=e<.5?16*e*e*e*e*e:1+16*--e*e*e*e*e),t.customEasing&&(n=t.customEasing(e)),n||e},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(e,n,o,r){var a=0;if(e.offsetParent)do{a+=e.offsetTop,e=e.offsetParent}while(e);return a=Math.max(a-n-o,0),r&&(a=Math.min(a,s()-t.innerHeight)),a},d=function(t){return t?a(t)+t.offsetTop:0},f=function(t,e){var n=e.speedAsDuration?e.speed:Math.abs(t/1e3*e.speed);return e.durationMax&&n>e.durationMax?e.durationMax:e.durationMin&&n<e.durationMin?e.durationMin:n},m=function(e){if(history.replaceState&&e.updateURL&&!history.state){var n=t.location.hash;n=n||t.pageYOffset,history.replaceState({smoothScroll:JSON.stringify(e),anchor:n||t.pageYOffset},document.title,n||t.location.href)}},h=function(t,e,n){e||history.pushState&&n.updateURL&&history.pushState({smoothScroll:JSON.stringify(n),anchor:t.id},document.title,t===document.documentElement?"#top":"#"+t.id)},p=function(e,n,o){0===e&&document.body.focus(),o||(e.focus(),document.activeElement!==e&&(e.setAttribute("tabindex","-1"),e.focus(),e.style.outline="none"),t.scrollTo(0,n))},g=function(e,n,o,r){if(n.emitEvents&&"function"==typeof t.CustomEvent){var a=new CustomEvent(e,{bubbles:!0,detail:{anchor:o,toggle:r}});document.dispatchEvent(a)}};return function(a,y){var v,S,E,b,O,I,M,A={};A.cancelScroll=function(t){cancelAnimationFrame(M),M=null,t||g("scrollCancel",v)},A.animateScroll=function(n,r,a){var i=o(v||e,a||{}),u="[object Number]"===Object.prototype.toString.call(n),m=u||!n.tagName?null:n;if(u||m){var y=t.pageYOffset;i.header&&!b&&(b=document.querySelector(i.header)),O||(O=d(b));var S,E,I,C=u?n:l(m,O,parseInt("function"==typeof i.offset?i.offset(n,r):i.offset,10),i.clip),w=C-y,L=s(),H=0,q=f(w,i),x=function(e,o){var a=t.pageYOffset;if(e==o||a==o||(y<o&&t.innerHeight+a)>=L)return A.cancelScroll(!0),p(n,o,u),g("scrollStop",i,n,r),S=null,M=null,!0},Q=function(e){S||(S=e),H+=e-S,E=H/parseInt(q,10),E=E>1?1:E,I=y+w*c(i,E),t.scrollTo(0,Math.floor(I)),x(I,C)||(M=t.requestAnimationFrame(Q),S=e)};0===t.pageYOffset&&t.scrollTo(0,0),h(n,u,i),g("scrollStart",i,n,r),A.cancelScroll(!0),t.requestAnimationFrame(Q)}};var C=function(e){if(!r()&&0===e.button&&!e.metaKey&&!e.ctrlKey&&"closest"in e.target&&(E=e.target.closest(a))&&"a"===E.tagName.toLowerCase()&&!e.target.closest(v.ignore)&&E.hostname===t.location.hostname&&E.pathname===t.location.pathname&&/#/.test(E.href)){var n=u(i(E.hash)),o=v.topOnEmptyHash&&"#"===n?document.documentElement:document.querySelector(n);o=o||"#top"!==n?o:document.documentElement,o&&(e.preventDefault(),m(v),A.animateScroll(o,E))}},w=function(t){if(null!==history.state&&history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(v)){var e=history.state.anchor;e&&0!==e&&!(e=document.querySelector(u(i(history.state.anchor))))||A.animateScroll(e,null,{updateURL:!1})}},L=function(t){I||(I=setTimeout((function(){I=null,O=d(b)}),66))};return A.destroy=function(){v&&(document.removeEventListener("click",C,!1),t.removeEventListener("resize",L,!1),t.removeEventListener("popstate",w,!1),A.cancelScroll(),v=null,S=null,E=null,b=null,O=null,I=null,M=null)},A.init=function(r){if(!n())throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";A.destroy(),v=o(e,r||{}),b=v.header?document.querySelector(v.header):null,O=d(b),document.addEventListener("click",C,!1),b&&t.addEventListener("resize",L,!1),v.updateURL&&v.popstate&&t.addEventListener("popstate",w,!1)},A.init(y),A}}));
\ No newline at end of file
diff --git a/docs/dist/smooth-scroll.polyfills.js b/docs/dist/smooth-scroll.polyfills.js
index 98262ed..9cc4a19 100755
--- a/docs/dist/smooth-scroll.polyfills.js
+++ b/docs/dist/smooth-scroll.polyfills.js
@@ -1,5 +1,5 @@
 /*!
- * smooth-scroll v15.0.0: Animate scrolling to anchor links
+ * smooth-scroll v15.0.1: Animate scrolling to anchor links
  * (c) 2018 Chris Ferdinandi
  * MIT License
  * http://github.com/cferdinandi/smooth-scroll
@@ -364,6 +364,27 @@ if (window.Element && !Element.prototype.closest) {
 		return speed;
 	};
 
+	var setHistory = function (options) {
+
+		// Make sure this should run
+		if (!history.replaceState || !options.updateURL || history.state) return;
+
+		// Get the hash to use
+		var hash = window.location.hash;
+		hash = hash ? hash : window.pageYOffset;
+
+		// Set a default history
+		history.replaceState(
+			{
+				smoothScroll: JSON.stringify(options),
+				anchor: hash ? hash : window.pageYOffset
+			},
+			document.title,
+			hash ? hash : window.location.href
+		);
+
+	};
+
 	/**
 	 * Update the URL
 	 * @param  {Node}    anchor  The anchor that was scrolled to
@@ -596,6 +617,7 @@ if (window.Element && !Element.prototype.closest) {
 			// If anchored element exists, scroll to it
 			if (!anchor) return;
 			event.preventDefault();
+			setHistory(settings);
 			smoothScroll.animateScroll(anchor, toggle);
 
 		};
@@ -613,11 +635,15 @@ if (window.Element && !Element.prototype.closest) {
 			if (!history.state.smoothScroll || history.state.smoothScroll !== JSON.stringify(settings)) return;
 
 			// Only run if state includes an anchor
-			if (!history.state.anchor) return;
+
+			// if (!history.state.anchor && history.state.anchor !== 0) return;
 
 			// Get the anchor
-			var anchor = document.querySelector(escapeCharacters(decode(history.state.anchor)));
-			if (!anchor) return;
+			var anchor = history.state.anchor;
+			if (anchor && anchor !== 0) {
+				anchor = document.querySelector(escapeCharacters(decode(history.state.anchor)));
+				if (!anchor) return;
+			}
 
 			// Animate scroll to anchor link
 			smoothScroll.animateScroll(anchor, null, {updateURL: false});
diff --git a/docs/dist/smooth-scroll.polyfills.min.js b/docs/dist/smooth-scroll.polyfills.min.js
index cefa87e..7287b54 100755
--- a/docs/dist/smooth-scroll.polyfills.min.js
+++ b/docs/dist/smooth-scroll.polyfills.min.js
@@ -1,2 +1,2 @@
-/*! smooth-scroll v15.0.0 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
-window.Element&&!Element.prototype.closest&&(Element.prototype.closest=function(e){var t,n=(this.document||this.ownerDocument).querySelectorAll(e),o=this;do{for(t=n.length;--t>=0&&n.item(t)!==o;);}while(t<0&&(o=o.parentElement));return o}),(function(){function e(e,t){t=t||{bubbles:!1,cancelable:!1,detail:void 0};var n=document.createEvent("CustomEvent");return n.initCustomEvent(e,t.bubbles,t.cancelable,t.detail),n}if("function"==typeof window.CustomEvent)return!1;e.prototype=window.Event.prototype,window.CustomEvent=e})(),(function(){for(var e=0,t=["ms","moz","webkit","o"],n=0;n<t.length&&!window.requestAnimationFrame;++n)window.requestAnimationFrame=window[t[n]+"RequestAnimationFrame"],window.cancelAnimationFrame=window[t[n]+"CancelAnimationFrame"]||window[t[n]+"CancelRequestAnimationFrame"];window.requestAnimationFrame||(window.requestAnimationFrame=function(t,n){var o=(new Date).getTime(),i=Math.max(0,16-(o-e)),r=window.setTimeout((function(){t(o+i)}),i);return e=o+i,r}),window.cancelAnimationFrame||(window.cancelAnimationFrame=function(e){clearTimeout(e)})})(),(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,speedAsDuration:!1,durationMax:null,durationMin:null,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},n=function(){return"querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype},o=function(){var e={};return Array.prototype.forEach.call(arguments,(function(t){for(var n in t){if(!t.hasOwnProperty(n))return;e[n]=t[n]}})),e},i=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)},r=function(t){return parseInt(e.getComputedStyle(t).height,10)},a=function(e){var t;try{t=decodeURIComponent(e)}catch(n){t=e}return t},u=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,i=-1,r="",a=n.charCodeAt(0);++i<o;){if(0===(t=n.charCodeAt(i)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===i&&t>=48&&t<=57||1===i&&t>=48&&t<=57&&45===a?r+="\\"+t.toString(16)+" ":r+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(i):"\\"+n.charAt(i)}var u;try{u=decodeURIComponent("#"+r)}catch(e){u="#"+r}return u},c=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(t,n,o,i){var r=0;if(t.offsetParent)do{r+=t.offsetTop,t=t.offsetParent}while(t);return r=Math.max(r-n-o,0),i&&(r=Math.min(r,s()-e.innerHeight)),r},m=function(e){return e?r(e)+e.offsetTop:0},d=function(e,t){var n=t.speedAsDuration?t.speed:Math.abs(e/1e3*t.speed);return t.durationMax&&n>t.durationMax?t.durationMax:t.durationMin&&n<t.durationMin?t.durationMin:n},f=function(e,t,n){t||history.pushState&&n.updateURL&&history.pushState({smoothScroll:JSON.stringify(n),anchor:e.id},document.title,e===document.documentElement?"#top":"#"+e.id)},h=function(t,n,o){0===t&&document.body.focus(),o||(t.focus(),document.activeElement!==t&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},p=function(t,n,o,i){if(n.emitEvents&&"function"==typeof e.CustomEvent){var r=new CustomEvent(t,{bubbles:!0,detail:{anchor:o,toggle:i}});document.dispatchEvent(r)}};return function(r,g){var v,w,y,E,b,S,A,C={};C.cancelScroll=function(e){cancelAnimationFrame(A),A=null,e||p("scrollCancel",v)},C.animateScroll=function(n,i,r){var a=o(v||t,r||{}),u="[object Number]"===Object.prototype.toString.call(n),g=u||!n.tagName?null:n;if(u||g){var w=e.pageYOffset;a.header&&!E&&(E=document.querySelector(a.header)),b||(b=m(E));var y,S,O,I=u?n:l(g,b,parseInt("function"==typeof a.offset?a.offset(n,i):a.offset,10),a.clip),q=I-w,M=s(),F=0,L=d(q,a),x=function(t,o){var r=e.pageYOffset;if(t==o||r==o||(w<o&&e.innerHeight+r)>=M)return C.cancelScroll(!0),h(n,o,u),p("scrollStop",a,n,i),y=null,A=null,!0},H=function(t){y||(y=t),F+=t-y,S=F/parseInt(L,10),S=S>1?1:S,O=w+q*c(a,S),e.scrollTo(0,Math.floor(O)),x(O,I)||(A=e.requestAnimationFrame(H),y=t)};0===e.pageYOffset&&e.scrollTo(0,0),f(n,u,a),p("scrollStart",a,n,i),C.cancelScroll(!0),e.requestAnimationFrame(H)}};var O=function(t){if(!i()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&"closest"in t.target&&(y=t.target.closest(r))&&"a"===y.tagName.toLowerCase()&&!t.target.closest(v.ignore)&&y.hostname===e.location.hostname&&y.pathname===e.location.pathname&&/#/.test(y.href)){var n=u(a(y.hash)),o=v.topOnEmptyHash&&"#"===n?document.documentElement:document.querySelector(n);o=o||"#top"!==n?o:document.documentElement,o&&(t.preventDefault(),C.animateScroll(o,y))}},I=function(e){if(null!==history.state&&history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(v)&&history.state.anchor){var t=document.querySelector(u(a(history.state.anchor)));t&&C.animateScroll(t,null,{updateURL:!1})}},q=function(e){S||(S=setTimeout((function(){S=null,b=m(E)}),66))};return C.destroy=function(){v&&(document.removeEventListener("click",O,!1),e.removeEventListener("resize",q,!1),e.removeEventListener("popstate",I,!1),C.cancelScroll(),v=null,w=null,y=null,E=null,b=null,S=null,A=null)},C.init=function(i){if(!n())throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";C.destroy(),v=o(t,i||{}),E=v.header?document.querySelector(v.header):null,b=m(E),document.addEventListener("click",O,!1),E&&e.addEventListener("resize",q,!1),v.updateURL&&v.popstate&&e.addEventListener("popstate",I,!1)},C.init(g),C}}));
\ No newline at end of file
+/*! smooth-scroll v15.0.1 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
+window.Element&&!Element.prototype.closest&&(Element.prototype.closest=function(e){var t,n=(this.document||this.ownerDocument).querySelectorAll(e),o=this;do{for(t=n.length;--t>=0&&n.item(t)!==o;);}while(t<0&&(o=o.parentElement));return o}),(function(){function e(e,t){t=t||{bubbles:!1,cancelable:!1,detail:void 0};var n=document.createEvent("CustomEvent");return n.initCustomEvent(e,t.bubbles,t.cancelable,t.detail),n}if("function"==typeof window.CustomEvent)return!1;e.prototype=window.Event.prototype,window.CustomEvent=e})(),(function(){for(var e=0,t=["ms","moz","webkit","o"],n=0;n<t.length&&!window.requestAnimationFrame;++n)window.requestAnimationFrame=window[t[n]+"RequestAnimationFrame"],window.cancelAnimationFrame=window[t[n]+"CancelAnimationFrame"]||window[t[n]+"CancelRequestAnimationFrame"];window.requestAnimationFrame||(window.requestAnimationFrame=function(t,n){var o=(new Date).getTime(),i=Math.max(0,16-(o-e)),r=window.setTimeout((function(){t(o+i)}),i);return e=o+i,r}),window.cancelAnimationFrame||(window.cancelAnimationFrame=function(e){clearTimeout(e)})})(),(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,speedAsDuration:!1,durationMax:null,durationMin:null,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},n=function(){return"querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype},o=function(){var e={};return Array.prototype.forEach.call(arguments,(function(t){for(var n in t){if(!t.hasOwnProperty(n))return;e[n]=t[n]}})),e},i=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)},r=function(t){return parseInt(e.getComputedStyle(t).height,10)},a=function(e){var t;try{t=decodeURIComponent(e)}catch(n){t=e}return t},u=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,i=-1,r="",a=n.charCodeAt(0);++i<o;){if(0===(t=n.charCodeAt(i)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===i&&t>=48&&t<=57||1===i&&t>=48&&t<=57&&45===a?r+="\\"+t.toString(16)+" ":r+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(i):"\\"+n.charAt(i)}var u;try{u=decodeURIComponent("#"+r)}catch(e){u="#"+r}return u},c=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(t,n,o,i){var r=0;if(t.offsetParent)do{r+=t.offsetTop,t=t.offsetParent}while(t);return r=Math.max(r-n-o,0),i&&(r=Math.min(r,s()-e.innerHeight)),r},m=function(e){return e?r(e)+e.offsetTop:0},d=function(e,t){var n=t.speedAsDuration?t.speed:Math.abs(e/1e3*t.speed);return t.durationMax&&n>t.durationMax?t.durationMax:t.durationMin&&n<t.durationMin?t.durationMin:n},f=function(t){if(history.replaceState&&t.updateURL&&!history.state){var n=e.location.hash;n=n||e.pageYOffset,history.replaceState({smoothScroll:JSON.stringify(t),anchor:n||e.pageYOffset},document.title,n||e.location.href)}},h=function(e,t,n){t||history.pushState&&n.updateURL&&history.pushState({smoothScroll:JSON.stringify(n),anchor:e.id},document.title,e===document.documentElement?"#top":"#"+e.id)},p=function(t,n,o){0===t&&document.body.focus(),o||(t.focus(),document.activeElement!==t&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},g=function(t,n,o,i){if(n.emitEvents&&"function"==typeof e.CustomEvent){var r=new CustomEvent(t,{bubbles:!0,detail:{anchor:o,toggle:i}});document.dispatchEvent(r)}};return function(r,v){var y,w,E,S,b,A,O,C={};C.cancelScroll=function(e){cancelAnimationFrame(O),O=null,e||g("scrollCancel",y)},C.animateScroll=function(n,i,r){var a=o(y||t,r||{}),u="[object Number]"===Object.prototype.toString.call(n),f=u||!n.tagName?null:n;if(u||f){var v=e.pageYOffset;a.header&&!S&&(S=document.querySelector(a.header)),b||(b=m(S));var w,E,A,I=u?n:l(f,b,parseInt("function"==typeof a.offset?a.offset(n,i):a.offset,10),a.clip),q=I-v,M=s(),F=0,L=d(q,a),x=function(t,o){var r=e.pageYOffset;if(t==o||r==o||(v<o&&e.innerHeight+r)>=M)return C.cancelScroll(!0),p(n,o,u),g("scrollStop",a,n,i),w=null,O=null,!0},H=function(t){w||(w=t),F+=t-w,E=F/parseInt(L,10),E=E>1?1:E,A=v+q*c(a,E),e.scrollTo(0,Math.floor(A)),x(A,I)||(O=e.requestAnimationFrame(H),w=t)};0===e.pageYOffset&&e.scrollTo(0,0),h(n,u,a),g("scrollStart",a,n,i),C.cancelScroll(!0),e.requestAnimationFrame(H)}};var I=function(t){if(!i()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&"closest"in t.target&&(E=t.target.closest(r))&&"a"===E.tagName.toLowerCase()&&!t.target.closest(y.ignore)&&E.hostname===e.location.hostname&&E.pathname===e.location.pathname&&/#/.test(E.href)){var n=u(a(E.hash)),o=y.topOnEmptyHash&&"#"===n?document.documentElement:document.querySelector(n);o=o||"#top"!==n?o:document.documentElement,o&&(t.preventDefault(),f(y),C.animateScroll(o,E))}},q=function(e){if(null!==history.state&&history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(y)){var t=history.state.anchor;t&&0!==t&&!(t=document.querySelector(u(a(history.state.anchor))))||C.animateScroll(t,null,{updateURL:!1})}},M=function(e){A||(A=setTimeout((function(){A=null,b=m(S)}),66))};return C.destroy=function(){y&&(document.removeEventListener("click",I,!1),e.removeEventListener("resize",M,!1),e.removeEventListener("popstate",q,!1),C.cancelScroll(),y=null,w=null,E=null,S=null,b=null,A=null,O=null)},C.init=function(i){if(!n())throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";C.destroy(),y=o(t,i||{}),S=y.header?document.querySelector(y.header):null,b=m(S),document.addEventListener("click",I,!1),S&&e.addEventListener("resize",M,!1),y.updateURL&&y.popstate&&e.addEventListener("popstate",q,!1)},C.init(v),C}}));
\ No newline at end of file
diff --git a/docs/index.html b/docs/index.html
index 0527ea0..9670549 100755
--- a/docs/index.html
+++ b/docs/index.html
@@ -91,7 +91,7 @@ <h1>Smooth Scroll</h1>
 		</main>
 
 		<!-- Javascript -->
-		<script src="http://github.com/dist/smooth-scroll.polyfills.min.js"></script>
+		<script src="http://github.com/dist/smooth-scroll.polyfills.js"></script>
 		<script>
 
 			// Instantiate Scrolls
diff --git a/docs/speed.html b/docs/speed.html
index f14b955..b3b6adf 100644
--- a/docs/speed.html
+++ b/docs/speed.html
@@ -59,7 +59,7 @@ <h1>Smooth Scroll</h1>
 		</main>
 
 		<!-- Javascript -->
-		<script src="http://github.com/dist/smooth-scroll.polyfills.min.js"></script>
+		<script src="http://github.com/dist/smooth-scroll.polyfills.js"></script>
 		<script>
 
 			// Instantiate Scrolls
diff --git a/package.json b/package.json
index ab37d3d..356e5cd 100755
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
 	"name": "smooth-scroll",
-	"version": "15.0.0",
+	"version": "15.0.1",
 	"description": "Animate scrolling to anchor links",
 	"main": "./dist/smooth-scroll.polyfills.min.js",
 	"author": {
diff --git a/src/docs/_templates/_footer.html b/src/docs/_templates/_footer.html
index 78dba3a..9cbe3d3 100755
--- a/src/docs/_templates/_footer.html
+++ b/src/docs/_templates/_footer.html
@@ -3,7 +3,7 @@
 		</main>
 
 		<!-- Javascript -->
-		<script src="http://github.com/dist/smooth-scroll.polyfills.min.js"></script>
+		<script src="http://github.com/dist/smooth-scroll.polyfills.js"></script>
 		<script>
 
 			// Instantiate Scrolls
diff --git a/src/js/smooth-scroll.js b/src/js/smooth-scroll.js
index 8c96e0a..482e940 100755
--- a/src/js/smooth-scroll.js
+++ b/src/js/smooth-scroll.js
@@ -287,6 +287,27 @@
 		return speed;
 	};
 
+	var setHistory = function (options) {
+
+		// Make sure this should run
+		if (!history.replaceState || !options.updateURL || history.state) return;
+
+		// Get the hash to use
+		var hash = window.location.hash;
+		hash = hash ? hash : window.pageYOffset;
+
+		// Set a default history
+		history.replaceState(
+			{
+				smoothScroll: JSON.stringify(options),
+				anchor: hash ? hash : window.pageYOffset
+			},
+			document.title,
+			hash ? hash : window.location.href
+		);
+
+	};
+
 	/**
 	 * Update the URL
 	 * @param  {Node}    anchor  The anchor that was scrolled to
@@ -519,6 +540,7 @@
 			// If anchored element exists, scroll to it
 			if (!anchor) return;
 			event.preventDefault();
+			setHistory(settings);
 			smoothScroll.animateScroll(anchor, toggle);
 
 		};
@@ -536,11 +558,15 @@
 			if (!history.state.smoothScroll || history.state.smoothScroll !== JSON.stringify(settings)) return;
 
 			// Only run if state includes an anchor
-			if (!history.state.anchor) return;
+
+			// if (!history.state.anchor && history.state.anchor !== 0) return;
 
 			// Get the anchor
-			var anchor = document.querySelector(escapeCharacters(decode(history.state.anchor)));
-			if (!anchor) return;
+			var anchor = history.state.anchor;
+			if (anchor && anchor !== 0) {
+				anchor = document.querySelector(escapeCharacters(decode(history.state.anchor)));
+				if (!anchor) return;
+			}
 
 			// Animate scroll to anchor link
 			smoothScroll.animateScroll(anchor, null, {updateURL: false});

From c320152e66beed097450b584ae8ac3b8dff5957d Mon Sep 17 00:00:00 2001
From: cferdinandi <chris@gomakethings.com>
Date: Mon, 19 Nov 2018 16:33:28 -0500
Subject: [PATCH 19/51] Removed check for URL setting

---
 dist/smooth-scroll.js                    | 4 ++--
 dist/smooth-scroll.min.js                | 4 ++--
 dist/smooth-scroll.polyfills.js          | 4 ++--
 dist/smooth-scroll.polyfills.min.js      | 4 ++--
 docs/dist/smooth-scroll.js               | 4 ++--
 docs/dist/smooth-scroll.min.js           | 4 ++--
 docs/dist/smooth-scroll.polyfills.js     | 4 ++--
 docs/dist/smooth-scroll.polyfills.min.js | 4 ++--
 package.json                             | 2 +-
 src/js/smooth-scroll.js                  | 2 +-
 10 files changed, 18 insertions(+), 18 deletions(-)

diff --git a/dist/smooth-scroll.js b/dist/smooth-scroll.js
index c0d21ec..267f6f1 100755
--- a/dist/smooth-scroll.js
+++ b/dist/smooth-scroll.js
@@ -1,5 +1,5 @@
 /*!
- * smooth-scroll v15.0.1: Animate scrolling to anchor links
+ * smooth-scroll v15.0.2: Animate scrolling to anchor links
  * (c) 2018 Chris Ferdinandi
  * MIT License
  * http://github.com/cferdinandi/smooth-scroll
@@ -297,7 +297,7 @@
 	var setHistory = function (options) {
 
 		// Make sure this should run
-		if (!history.replaceState || !options.updateURL || history.state) return;
+		if (!history.replaceState || history.state) return;
 
 		// Get the hash to use
 		var hash = window.location.hash;
diff --git a/dist/smooth-scroll.min.js b/dist/smooth-scroll.min.js
index 3d3aa1d..abf9489 100755
--- a/dist/smooth-scroll.min.js
+++ b/dist/smooth-scroll.min.js
@@ -1,2 +1,2 @@
-/*! smooth-scroll v15.0.1 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
-!(function(t,e){"function"==typeof define&&define.amd?define([],(function(){return e(t)})):"object"==typeof exports?module.exports=e(t):t.SmoothScroll=e(t)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(t){"use strict";var e={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,speedAsDuration:!1,durationMax:null,durationMin:null,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},n=function(){return"querySelector"in document&&"addEventListener"in t&&"requestAnimationFrame"in t&&"closest"in t.Element.prototype},o=function(){var t={};return Array.prototype.forEach.call(arguments,(function(e){for(var n in e){if(!e.hasOwnProperty(n))return;t[n]=e[n]}})),t},r=function(e){return!!("matchMedia"in t&&t.matchMedia("(prefers-reduced-motion)").matches)},a=function(e){return parseInt(t.getComputedStyle(e).height,10)},i=function(t){var e;try{e=decodeURIComponent(t)}catch(n){e=t}return e},u=function(t){"#"===t.charAt(0)&&(t=t.substr(1));for(var e,n=String(t),o=n.length,r=-1,a="",i=n.charCodeAt(0);++r<o;){if(0===(e=n.charCodeAt(r)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");e>=1&&e<=31||127==e||0===r&&e>=48&&e<=57||1===r&&e>=48&&e<=57&&45===i?a+="\\"+e.toString(16)+" ":a+=e>=128||45===e||95===e||e>=48&&e<=57||e>=65&&e<=90||e>=97&&e<=122?n.charAt(r):"\\"+n.charAt(r)}var u;try{u=decodeURIComponent("#"+a)}catch(t){u="#"+a}return u},c=function(t,e){var n;return"easeInQuad"===t.easing&&(n=e*e),"easeOutQuad"===t.easing&&(n=e*(2-e)),"easeInOutQuad"===t.easing&&(n=e<.5?2*e*e:(4-2*e)*e-1),"easeInCubic"===t.easing&&(n=e*e*e),"easeOutCubic"===t.easing&&(n=--e*e*e+1),"easeInOutCubic"===t.easing&&(n=e<.5?4*e*e*e:(e-1)*(2*e-2)*(2*e-2)+1),"easeInQuart"===t.easing&&(n=e*e*e*e),"easeOutQuart"===t.easing&&(n=1- --e*e*e*e),"easeInOutQuart"===t.easing&&(n=e<.5?8*e*e*e*e:1-8*--e*e*e*e),"easeInQuint"===t.easing&&(n=e*e*e*e*e),"easeOutQuint"===t.easing&&(n=1+--e*e*e*e*e),"easeInOutQuint"===t.easing&&(n=e<.5?16*e*e*e*e*e:1+16*--e*e*e*e*e),t.customEasing&&(n=t.customEasing(e)),n||e},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(e,n,o,r){var a=0;if(e.offsetParent)do{a+=e.offsetTop,e=e.offsetParent}while(e);return a=Math.max(a-n-o,0),r&&(a=Math.min(a,s()-t.innerHeight)),a},d=function(t){return t?a(t)+t.offsetTop:0},f=function(t,e){var n=e.speedAsDuration?e.speed:Math.abs(t/1e3*e.speed);return e.durationMax&&n>e.durationMax?e.durationMax:e.durationMin&&n<e.durationMin?e.durationMin:n},m=function(e){if(history.replaceState&&e.updateURL&&!history.state){var n=t.location.hash;n=n||t.pageYOffset,history.replaceState({smoothScroll:JSON.stringify(e),anchor:n||t.pageYOffset},document.title,n||t.location.href)}},h=function(t,e,n){e||history.pushState&&n.updateURL&&history.pushState({smoothScroll:JSON.stringify(n),anchor:t.id},document.title,t===document.documentElement?"#top":"#"+t.id)},p=function(e,n,o){0===e&&document.body.focus(),o||(e.focus(),document.activeElement!==e&&(e.setAttribute("tabindex","-1"),e.focus(),e.style.outline="none"),t.scrollTo(0,n))},g=function(e,n,o,r){if(n.emitEvents&&"function"==typeof t.CustomEvent){var a=new CustomEvent(e,{bubbles:!0,detail:{anchor:o,toggle:r}});document.dispatchEvent(a)}};return function(a,y){var v,S,E,b,O,I,M,A={};A.cancelScroll=function(t){cancelAnimationFrame(M),M=null,t||g("scrollCancel",v)},A.animateScroll=function(n,r,a){var i=o(v||e,a||{}),u="[object Number]"===Object.prototype.toString.call(n),m=u||!n.tagName?null:n;if(u||m){var y=t.pageYOffset;i.header&&!b&&(b=document.querySelector(i.header)),O||(O=d(b));var S,E,I,C=u?n:l(m,O,parseInt("function"==typeof i.offset?i.offset(n,r):i.offset,10),i.clip),w=C-y,L=s(),H=0,q=f(w,i),x=function(e,o){var a=t.pageYOffset;if(e==o||a==o||(y<o&&t.innerHeight+a)>=L)return A.cancelScroll(!0),p(n,o,u),g("scrollStop",i,n,r),S=null,M=null,!0},Q=function(e){S||(S=e),H+=e-S,E=H/parseInt(q,10),E=E>1?1:E,I=y+w*c(i,E),t.scrollTo(0,Math.floor(I)),x(I,C)||(M=t.requestAnimationFrame(Q),S=e)};0===t.pageYOffset&&t.scrollTo(0,0),h(n,u,i),g("scrollStart",i,n,r),A.cancelScroll(!0),t.requestAnimationFrame(Q)}};var C=function(e){if(!r()&&0===e.button&&!e.metaKey&&!e.ctrlKey&&"closest"in e.target&&(E=e.target.closest(a))&&"a"===E.tagName.toLowerCase()&&!e.target.closest(v.ignore)&&E.hostname===t.location.hostname&&E.pathname===t.location.pathname&&/#/.test(E.href)){var n=u(i(E.hash)),o=v.topOnEmptyHash&&"#"===n?document.documentElement:document.querySelector(n);o=o||"#top"!==n?o:document.documentElement,o&&(e.preventDefault(),m(v),A.animateScroll(o,E))}},w=function(t){if(null!==history.state&&history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(v)){var e=history.state.anchor;e&&0!==e&&!(e=document.querySelector(u(i(history.state.anchor))))||A.animateScroll(e,null,{updateURL:!1})}},L=function(t){I||(I=setTimeout((function(){I=null,O=d(b)}),66))};return A.destroy=function(){v&&(document.removeEventListener("click",C,!1),t.removeEventListener("resize",L,!1),t.removeEventListener("popstate",w,!1),A.cancelScroll(),v=null,S=null,E=null,b=null,O=null,I=null,M=null)},A.init=function(r){if(!n())throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";A.destroy(),v=o(e,r||{}),b=v.header?document.querySelector(v.header):null,O=d(b),document.addEventListener("click",C,!1),b&&t.addEventListener("resize",L,!1),v.updateURL&&v.popstate&&t.addEventListener("popstate",w,!1)},A.init(y),A}}));
\ No newline at end of file
+/*! smooth-scroll v15.0.2 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
+!(function(t,e){"function"==typeof define&&define.amd?define([],(function(){return e(t)})):"object"==typeof exports?module.exports=e(t):t.SmoothScroll=e(t)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(t){"use strict";var e={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,speedAsDuration:!1,durationMax:null,durationMin:null,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},n=function(){return"querySelector"in document&&"addEventListener"in t&&"requestAnimationFrame"in t&&"closest"in t.Element.prototype},o=function(){var t={};return Array.prototype.forEach.call(arguments,(function(e){for(var n in e){if(!e.hasOwnProperty(n))return;t[n]=e[n]}})),t},r=function(e){return!!("matchMedia"in t&&t.matchMedia("(prefers-reduced-motion)").matches)},a=function(e){return parseInt(t.getComputedStyle(e).height,10)},i=function(t){var e;try{e=decodeURIComponent(t)}catch(n){e=t}return e},u=function(t){"#"===t.charAt(0)&&(t=t.substr(1));for(var e,n=String(t),o=n.length,r=-1,a="",i=n.charCodeAt(0);++r<o;){if(0===(e=n.charCodeAt(r)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");e>=1&&e<=31||127==e||0===r&&e>=48&&e<=57||1===r&&e>=48&&e<=57&&45===i?a+="\\"+e.toString(16)+" ":a+=e>=128||45===e||95===e||e>=48&&e<=57||e>=65&&e<=90||e>=97&&e<=122?n.charAt(r):"\\"+n.charAt(r)}var u;try{u=decodeURIComponent("#"+a)}catch(t){u="#"+a}return u},c=function(t,e){var n;return"easeInQuad"===t.easing&&(n=e*e),"easeOutQuad"===t.easing&&(n=e*(2-e)),"easeInOutQuad"===t.easing&&(n=e<.5?2*e*e:(4-2*e)*e-1),"easeInCubic"===t.easing&&(n=e*e*e),"easeOutCubic"===t.easing&&(n=--e*e*e+1),"easeInOutCubic"===t.easing&&(n=e<.5?4*e*e*e:(e-1)*(2*e-2)*(2*e-2)+1),"easeInQuart"===t.easing&&(n=e*e*e*e),"easeOutQuart"===t.easing&&(n=1- --e*e*e*e),"easeInOutQuart"===t.easing&&(n=e<.5?8*e*e*e*e:1-8*--e*e*e*e),"easeInQuint"===t.easing&&(n=e*e*e*e*e),"easeOutQuint"===t.easing&&(n=1+--e*e*e*e*e),"easeInOutQuint"===t.easing&&(n=e<.5?16*e*e*e*e*e:1+16*--e*e*e*e*e),t.customEasing&&(n=t.customEasing(e)),n||e},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(e,n,o,r){var a=0;if(e.offsetParent)do{a+=e.offsetTop,e=e.offsetParent}while(e);return a=Math.max(a-n-o,0),r&&(a=Math.min(a,s()-t.innerHeight)),a},d=function(t){return t?a(t)+t.offsetTop:0},f=function(t,e){var n=e.speedAsDuration?e.speed:Math.abs(t/1e3*e.speed);return e.durationMax&&n>e.durationMax?e.durationMax:e.durationMin&&n<e.durationMin?e.durationMin:n},m=function(e){if(history.replaceState&&!history.state){var n=t.location.hash;n=n||t.pageYOffset,history.replaceState({smoothScroll:JSON.stringify(e),anchor:n||t.pageYOffset},document.title,n||t.location.href)}},h=function(t,e,n){e||history.pushState&&n.updateURL&&history.pushState({smoothScroll:JSON.stringify(n),anchor:t.id},document.title,t===document.documentElement?"#top":"#"+t.id)},p=function(e,n,o){0===e&&document.body.focus(),o||(e.focus(),document.activeElement!==e&&(e.setAttribute("tabindex","-1"),e.focus(),e.style.outline="none"),t.scrollTo(0,n))},g=function(e,n,o,r){if(n.emitEvents&&"function"==typeof t.CustomEvent){var a=new CustomEvent(e,{bubbles:!0,detail:{anchor:o,toggle:r}});document.dispatchEvent(a)}};return function(a,y){var v,S,E,b,O,I,M,A={};A.cancelScroll=function(t){cancelAnimationFrame(M),M=null,t||g("scrollCancel",v)},A.animateScroll=function(n,r,a){var i=o(v||e,a||{}),u="[object Number]"===Object.prototype.toString.call(n),m=u||!n.tagName?null:n;if(u||m){var y=t.pageYOffset;i.header&&!b&&(b=document.querySelector(i.header)),O||(O=d(b));var S,E,I,C=u?n:l(m,O,parseInt("function"==typeof i.offset?i.offset(n,r):i.offset,10),i.clip),w=C-y,L=s(),H=0,q=f(w,i),x=function(e,o){var a=t.pageYOffset;if(e==o||a==o||(y<o&&t.innerHeight+a)>=L)return A.cancelScroll(!0),p(n,o,u),g("scrollStop",i,n,r),S=null,M=null,!0},Q=function(e){S||(S=e),H+=e-S,E=H/parseInt(q,10),E=E>1?1:E,I=y+w*c(i,E),t.scrollTo(0,Math.floor(I)),x(I,C)||(M=t.requestAnimationFrame(Q),S=e)};0===t.pageYOffset&&t.scrollTo(0,0),h(n,u,i),g("scrollStart",i,n,r),A.cancelScroll(!0),t.requestAnimationFrame(Q)}};var C=function(e){if(!r()&&0===e.button&&!e.metaKey&&!e.ctrlKey&&"closest"in e.target&&(E=e.target.closest(a))&&"a"===E.tagName.toLowerCase()&&!e.target.closest(v.ignore)&&E.hostname===t.location.hostname&&E.pathname===t.location.pathname&&/#/.test(E.href)){var n=u(i(E.hash)),o=v.topOnEmptyHash&&"#"===n?document.documentElement:document.querySelector(n);o=o||"#top"!==n?o:document.documentElement,o&&(e.preventDefault(),m(v),A.animateScroll(o,E))}},w=function(t){if(null!==history.state&&history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(v)){var e=history.state.anchor;e&&0!==e&&!(e=document.querySelector(u(i(history.state.anchor))))||A.animateScroll(e,null,{updateURL:!1})}},L=function(t){I||(I=setTimeout((function(){I=null,O=d(b)}),66))};return A.destroy=function(){v&&(document.removeEventListener("click",C,!1),t.removeEventListener("resize",L,!1),t.removeEventListener("popstate",w,!1),A.cancelScroll(),v=null,S=null,E=null,b=null,O=null,I=null,M=null)},A.init=function(r){if(!n())throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";A.destroy(),v=o(e,r||{}),b=v.header?document.querySelector(v.header):null,O=d(b),document.addEventListener("click",C,!1),b&&t.addEventListener("resize",L,!1),v.updateURL&&v.popstate&&t.addEventListener("popstate",w,!1)},A.init(y),A}}));
\ No newline at end of file
diff --git a/dist/smooth-scroll.polyfills.js b/dist/smooth-scroll.polyfills.js
index 9cc4a19..66a97f7 100755
--- a/dist/smooth-scroll.polyfills.js
+++ b/dist/smooth-scroll.polyfills.js
@@ -1,5 +1,5 @@
 /*!
- * smooth-scroll v15.0.1: Animate scrolling to anchor links
+ * smooth-scroll v15.0.2: Animate scrolling to anchor links
  * (c) 2018 Chris Ferdinandi
  * MIT License
  * http://github.com/cferdinandi/smooth-scroll
@@ -367,7 +367,7 @@ if (window.Element && !Element.prototype.closest) {
 	var setHistory = function (options) {
 
 		// Make sure this should run
-		if (!history.replaceState || !options.updateURL || history.state) return;
+		if (!history.replaceState || history.state) return;
 
 		// Get the hash to use
 		var hash = window.location.hash;
diff --git a/dist/smooth-scroll.polyfills.min.js b/dist/smooth-scroll.polyfills.min.js
index 7287b54..6fff7f7 100755
--- a/dist/smooth-scroll.polyfills.min.js
+++ b/dist/smooth-scroll.polyfills.min.js
@@ -1,2 +1,2 @@
-/*! smooth-scroll v15.0.1 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
-window.Element&&!Element.prototype.closest&&(Element.prototype.closest=function(e){var t,n=(this.document||this.ownerDocument).querySelectorAll(e),o=this;do{for(t=n.length;--t>=0&&n.item(t)!==o;);}while(t<0&&(o=o.parentElement));return o}),(function(){function e(e,t){t=t||{bubbles:!1,cancelable:!1,detail:void 0};var n=document.createEvent("CustomEvent");return n.initCustomEvent(e,t.bubbles,t.cancelable,t.detail),n}if("function"==typeof window.CustomEvent)return!1;e.prototype=window.Event.prototype,window.CustomEvent=e})(),(function(){for(var e=0,t=["ms","moz","webkit","o"],n=0;n<t.length&&!window.requestAnimationFrame;++n)window.requestAnimationFrame=window[t[n]+"RequestAnimationFrame"],window.cancelAnimationFrame=window[t[n]+"CancelAnimationFrame"]||window[t[n]+"CancelRequestAnimationFrame"];window.requestAnimationFrame||(window.requestAnimationFrame=function(t,n){var o=(new Date).getTime(),i=Math.max(0,16-(o-e)),r=window.setTimeout((function(){t(o+i)}),i);return e=o+i,r}),window.cancelAnimationFrame||(window.cancelAnimationFrame=function(e){clearTimeout(e)})})(),(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,speedAsDuration:!1,durationMax:null,durationMin:null,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},n=function(){return"querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype},o=function(){var e={};return Array.prototype.forEach.call(arguments,(function(t){for(var n in t){if(!t.hasOwnProperty(n))return;e[n]=t[n]}})),e},i=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)},r=function(t){return parseInt(e.getComputedStyle(t).height,10)},a=function(e){var t;try{t=decodeURIComponent(e)}catch(n){t=e}return t},u=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,i=-1,r="",a=n.charCodeAt(0);++i<o;){if(0===(t=n.charCodeAt(i)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===i&&t>=48&&t<=57||1===i&&t>=48&&t<=57&&45===a?r+="\\"+t.toString(16)+" ":r+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(i):"\\"+n.charAt(i)}var u;try{u=decodeURIComponent("#"+r)}catch(e){u="#"+r}return u},c=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(t,n,o,i){var r=0;if(t.offsetParent)do{r+=t.offsetTop,t=t.offsetParent}while(t);return r=Math.max(r-n-o,0),i&&(r=Math.min(r,s()-e.innerHeight)),r},m=function(e){return e?r(e)+e.offsetTop:0},d=function(e,t){var n=t.speedAsDuration?t.speed:Math.abs(e/1e3*t.speed);return t.durationMax&&n>t.durationMax?t.durationMax:t.durationMin&&n<t.durationMin?t.durationMin:n},f=function(t){if(history.replaceState&&t.updateURL&&!history.state){var n=e.location.hash;n=n||e.pageYOffset,history.replaceState({smoothScroll:JSON.stringify(t),anchor:n||e.pageYOffset},document.title,n||e.location.href)}},h=function(e,t,n){t||history.pushState&&n.updateURL&&history.pushState({smoothScroll:JSON.stringify(n),anchor:e.id},document.title,e===document.documentElement?"#top":"#"+e.id)},p=function(t,n,o){0===t&&document.body.focus(),o||(t.focus(),document.activeElement!==t&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},g=function(t,n,o,i){if(n.emitEvents&&"function"==typeof e.CustomEvent){var r=new CustomEvent(t,{bubbles:!0,detail:{anchor:o,toggle:i}});document.dispatchEvent(r)}};return function(r,v){var y,w,E,S,b,A,O,C={};C.cancelScroll=function(e){cancelAnimationFrame(O),O=null,e||g("scrollCancel",y)},C.animateScroll=function(n,i,r){var a=o(y||t,r||{}),u="[object Number]"===Object.prototype.toString.call(n),f=u||!n.tagName?null:n;if(u||f){var v=e.pageYOffset;a.header&&!S&&(S=document.querySelector(a.header)),b||(b=m(S));var w,E,A,I=u?n:l(f,b,parseInt("function"==typeof a.offset?a.offset(n,i):a.offset,10),a.clip),q=I-v,M=s(),F=0,L=d(q,a),x=function(t,o){var r=e.pageYOffset;if(t==o||r==o||(v<o&&e.innerHeight+r)>=M)return C.cancelScroll(!0),p(n,o,u),g("scrollStop",a,n,i),w=null,O=null,!0},H=function(t){w||(w=t),F+=t-w,E=F/parseInt(L,10),E=E>1?1:E,A=v+q*c(a,E),e.scrollTo(0,Math.floor(A)),x(A,I)||(O=e.requestAnimationFrame(H),w=t)};0===e.pageYOffset&&e.scrollTo(0,0),h(n,u,a),g("scrollStart",a,n,i),C.cancelScroll(!0),e.requestAnimationFrame(H)}};var I=function(t){if(!i()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&"closest"in t.target&&(E=t.target.closest(r))&&"a"===E.tagName.toLowerCase()&&!t.target.closest(y.ignore)&&E.hostname===e.location.hostname&&E.pathname===e.location.pathname&&/#/.test(E.href)){var n=u(a(E.hash)),o=y.topOnEmptyHash&&"#"===n?document.documentElement:document.querySelector(n);o=o||"#top"!==n?o:document.documentElement,o&&(t.preventDefault(),f(y),C.animateScroll(o,E))}},q=function(e){if(null!==history.state&&history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(y)){var t=history.state.anchor;t&&0!==t&&!(t=document.querySelector(u(a(history.state.anchor))))||C.animateScroll(t,null,{updateURL:!1})}},M=function(e){A||(A=setTimeout((function(){A=null,b=m(S)}),66))};return C.destroy=function(){y&&(document.removeEventListener("click",I,!1),e.removeEventListener("resize",M,!1),e.removeEventListener("popstate",q,!1),C.cancelScroll(),y=null,w=null,E=null,S=null,b=null,A=null,O=null)},C.init=function(i){if(!n())throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";C.destroy(),y=o(t,i||{}),S=y.header?document.querySelector(y.header):null,b=m(S),document.addEventListener("click",I,!1),S&&e.addEventListener("resize",M,!1),y.updateURL&&y.popstate&&e.addEventListener("popstate",q,!1)},C.init(v),C}}));
\ No newline at end of file
+/*! smooth-scroll v15.0.2 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
+window.Element&&!Element.prototype.closest&&(Element.prototype.closest=function(e){var t,n=(this.document||this.ownerDocument).querySelectorAll(e),o=this;do{for(t=n.length;--t>=0&&n.item(t)!==o;);}while(t<0&&(o=o.parentElement));return o}),(function(){function e(e,t){t=t||{bubbles:!1,cancelable:!1,detail:void 0};var n=document.createEvent("CustomEvent");return n.initCustomEvent(e,t.bubbles,t.cancelable,t.detail),n}if("function"==typeof window.CustomEvent)return!1;e.prototype=window.Event.prototype,window.CustomEvent=e})(),(function(){for(var e=0,t=["ms","moz","webkit","o"],n=0;n<t.length&&!window.requestAnimationFrame;++n)window.requestAnimationFrame=window[t[n]+"RequestAnimationFrame"],window.cancelAnimationFrame=window[t[n]+"CancelAnimationFrame"]||window[t[n]+"CancelRequestAnimationFrame"];window.requestAnimationFrame||(window.requestAnimationFrame=function(t,n){var o=(new Date).getTime(),i=Math.max(0,16-(o-e)),r=window.setTimeout((function(){t(o+i)}),i);return e=o+i,r}),window.cancelAnimationFrame||(window.cancelAnimationFrame=function(e){clearTimeout(e)})})(),(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,speedAsDuration:!1,durationMax:null,durationMin:null,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},n=function(){return"querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype},o=function(){var e={};return Array.prototype.forEach.call(arguments,(function(t){for(var n in t){if(!t.hasOwnProperty(n))return;e[n]=t[n]}})),e},i=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)},r=function(t){return parseInt(e.getComputedStyle(t).height,10)},a=function(e){var t;try{t=decodeURIComponent(e)}catch(n){t=e}return t},u=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,i=-1,r="",a=n.charCodeAt(0);++i<o;){if(0===(t=n.charCodeAt(i)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===i&&t>=48&&t<=57||1===i&&t>=48&&t<=57&&45===a?r+="\\"+t.toString(16)+" ":r+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(i):"\\"+n.charAt(i)}var u;try{u=decodeURIComponent("#"+r)}catch(e){u="#"+r}return u},c=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(t,n,o,i){var r=0;if(t.offsetParent)do{r+=t.offsetTop,t=t.offsetParent}while(t);return r=Math.max(r-n-o,0),i&&(r=Math.min(r,s()-e.innerHeight)),r},m=function(e){return e?r(e)+e.offsetTop:0},d=function(e,t){var n=t.speedAsDuration?t.speed:Math.abs(e/1e3*t.speed);return t.durationMax&&n>t.durationMax?t.durationMax:t.durationMin&&n<t.durationMin?t.durationMin:n},f=function(t){if(history.replaceState&&!history.state){var n=e.location.hash;n=n||e.pageYOffset,history.replaceState({smoothScroll:JSON.stringify(t),anchor:n||e.pageYOffset},document.title,n||e.location.href)}},h=function(e,t,n){t||history.pushState&&n.updateURL&&history.pushState({smoothScroll:JSON.stringify(n),anchor:e.id},document.title,e===document.documentElement?"#top":"#"+e.id)},p=function(t,n,o){0===t&&document.body.focus(),o||(t.focus(),document.activeElement!==t&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},g=function(t,n,o,i){if(n.emitEvents&&"function"==typeof e.CustomEvent){var r=new CustomEvent(t,{bubbles:!0,detail:{anchor:o,toggle:i}});document.dispatchEvent(r)}};return function(r,v){var y,w,E,S,b,A,O,C={};C.cancelScroll=function(e){cancelAnimationFrame(O),O=null,e||g("scrollCancel",y)},C.animateScroll=function(n,i,r){var a=o(y||t,r||{}),u="[object Number]"===Object.prototype.toString.call(n),f=u||!n.tagName?null:n;if(u||f){var v=e.pageYOffset;a.header&&!S&&(S=document.querySelector(a.header)),b||(b=m(S));var w,E,A,I=u?n:l(f,b,parseInt("function"==typeof a.offset?a.offset(n,i):a.offset,10),a.clip),q=I-v,M=s(),F=0,L=d(q,a),x=function(t,o){var r=e.pageYOffset;if(t==o||r==o||(v<o&&e.innerHeight+r)>=M)return C.cancelScroll(!0),p(n,o,u),g("scrollStop",a,n,i),w=null,O=null,!0},H=function(t){w||(w=t),F+=t-w,E=F/parseInt(L,10),E=E>1?1:E,A=v+q*c(a,E),e.scrollTo(0,Math.floor(A)),x(A,I)||(O=e.requestAnimationFrame(H),w=t)};0===e.pageYOffset&&e.scrollTo(0,0),h(n,u,a),g("scrollStart",a,n,i),C.cancelScroll(!0),e.requestAnimationFrame(H)}};var I=function(t){if(!i()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&"closest"in t.target&&(E=t.target.closest(r))&&"a"===E.tagName.toLowerCase()&&!t.target.closest(y.ignore)&&E.hostname===e.location.hostname&&E.pathname===e.location.pathname&&/#/.test(E.href)){var n=u(a(E.hash)),o=y.topOnEmptyHash&&"#"===n?document.documentElement:document.querySelector(n);o=o||"#top"!==n?o:document.documentElement,o&&(t.preventDefault(),f(y),C.animateScroll(o,E))}},q=function(e){if(null!==history.state&&history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(y)){var t=history.state.anchor;t&&0!==t&&!(t=document.querySelector(u(a(history.state.anchor))))||C.animateScroll(t,null,{updateURL:!1})}},M=function(e){A||(A=setTimeout((function(){A=null,b=m(S)}),66))};return C.destroy=function(){y&&(document.removeEventListener("click",I,!1),e.removeEventListener("resize",M,!1),e.removeEventListener("popstate",q,!1),C.cancelScroll(),y=null,w=null,E=null,S=null,b=null,A=null,O=null)},C.init=function(i){if(!n())throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";C.destroy(),y=o(t,i||{}),S=y.header?document.querySelector(y.header):null,b=m(S),document.addEventListener("click",I,!1),S&&e.addEventListener("resize",M,!1),y.updateURL&&y.popstate&&e.addEventListener("popstate",q,!1)},C.init(v),C}}));
\ No newline at end of file
diff --git a/docs/dist/smooth-scroll.js b/docs/dist/smooth-scroll.js
index c0d21ec..267f6f1 100755
--- a/docs/dist/smooth-scroll.js
+++ b/docs/dist/smooth-scroll.js
@@ -1,5 +1,5 @@
 /*!
- * smooth-scroll v15.0.1: Animate scrolling to anchor links
+ * smooth-scroll v15.0.2: Animate scrolling to anchor links
  * (c) 2018 Chris Ferdinandi
  * MIT License
  * http://github.com/cferdinandi/smooth-scroll
@@ -297,7 +297,7 @@
 	var setHistory = function (options) {
 
 		// Make sure this should run
-		if (!history.replaceState || !options.updateURL || history.state) return;
+		if (!history.replaceState || history.state) return;
 
 		// Get the hash to use
 		var hash = window.location.hash;
diff --git a/docs/dist/smooth-scroll.min.js b/docs/dist/smooth-scroll.min.js
index 3d3aa1d..abf9489 100755
--- a/docs/dist/smooth-scroll.min.js
+++ b/docs/dist/smooth-scroll.min.js
@@ -1,2 +1,2 @@
-/*! smooth-scroll v15.0.1 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
-!(function(t,e){"function"==typeof define&&define.amd?define([],(function(){return e(t)})):"object"==typeof exports?module.exports=e(t):t.SmoothScroll=e(t)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(t){"use strict";var e={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,speedAsDuration:!1,durationMax:null,durationMin:null,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},n=function(){return"querySelector"in document&&"addEventListener"in t&&"requestAnimationFrame"in t&&"closest"in t.Element.prototype},o=function(){var t={};return Array.prototype.forEach.call(arguments,(function(e){for(var n in e){if(!e.hasOwnProperty(n))return;t[n]=e[n]}})),t},r=function(e){return!!("matchMedia"in t&&t.matchMedia("(prefers-reduced-motion)").matches)},a=function(e){return parseInt(t.getComputedStyle(e).height,10)},i=function(t){var e;try{e=decodeURIComponent(t)}catch(n){e=t}return e},u=function(t){"#"===t.charAt(0)&&(t=t.substr(1));for(var e,n=String(t),o=n.length,r=-1,a="",i=n.charCodeAt(0);++r<o;){if(0===(e=n.charCodeAt(r)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");e>=1&&e<=31||127==e||0===r&&e>=48&&e<=57||1===r&&e>=48&&e<=57&&45===i?a+="\\"+e.toString(16)+" ":a+=e>=128||45===e||95===e||e>=48&&e<=57||e>=65&&e<=90||e>=97&&e<=122?n.charAt(r):"\\"+n.charAt(r)}var u;try{u=decodeURIComponent("#"+a)}catch(t){u="#"+a}return u},c=function(t,e){var n;return"easeInQuad"===t.easing&&(n=e*e),"easeOutQuad"===t.easing&&(n=e*(2-e)),"easeInOutQuad"===t.easing&&(n=e<.5?2*e*e:(4-2*e)*e-1),"easeInCubic"===t.easing&&(n=e*e*e),"easeOutCubic"===t.easing&&(n=--e*e*e+1),"easeInOutCubic"===t.easing&&(n=e<.5?4*e*e*e:(e-1)*(2*e-2)*(2*e-2)+1),"easeInQuart"===t.easing&&(n=e*e*e*e),"easeOutQuart"===t.easing&&(n=1- --e*e*e*e),"easeInOutQuart"===t.easing&&(n=e<.5?8*e*e*e*e:1-8*--e*e*e*e),"easeInQuint"===t.easing&&(n=e*e*e*e*e),"easeOutQuint"===t.easing&&(n=1+--e*e*e*e*e),"easeInOutQuint"===t.easing&&(n=e<.5?16*e*e*e*e*e:1+16*--e*e*e*e*e),t.customEasing&&(n=t.customEasing(e)),n||e},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(e,n,o,r){var a=0;if(e.offsetParent)do{a+=e.offsetTop,e=e.offsetParent}while(e);return a=Math.max(a-n-o,0),r&&(a=Math.min(a,s()-t.innerHeight)),a},d=function(t){return t?a(t)+t.offsetTop:0},f=function(t,e){var n=e.speedAsDuration?e.speed:Math.abs(t/1e3*e.speed);return e.durationMax&&n>e.durationMax?e.durationMax:e.durationMin&&n<e.durationMin?e.durationMin:n},m=function(e){if(history.replaceState&&e.updateURL&&!history.state){var n=t.location.hash;n=n||t.pageYOffset,history.replaceState({smoothScroll:JSON.stringify(e),anchor:n||t.pageYOffset},document.title,n||t.location.href)}},h=function(t,e,n){e||history.pushState&&n.updateURL&&history.pushState({smoothScroll:JSON.stringify(n),anchor:t.id},document.title,t===document.documentElement?"#top":"#"+t.id)},p=function(e,n,o){0===e&&document.body.focus(),o||(e.focus(),document.activeElement!==e&&(e.setAttribute("tabindex","-1"),e.focus(),e.style.outline="none"),t.scrollTo(0,n))},g=function(e,n,o,r){if(n.emitEvents&&"function"==typeof t.CustomEvent){var a=new CustomEvent(e,{bubbles:!0,detail:{anchor:o,toggle:r}});document.dispatchEvent(a)}};return function(a,y){var v,S,E,b,O,I,M,A={};A.cancelScroll=function(t){cancelAnimationFrame(M),M=null,t||g("scrollCancel",v)},A.animateScroll=function(n,r,a){var i=o(v||e,a||{}),u="[object Number]"===Object.prototype.toString.call(n),m=u||!n.tagName?null:n;if(u||m){var y=t.pageYOffset;i.header&&!b&&(b=document.querySelector(i.header)),O||(O=d(b));var S,E,I,C=u?n:l(m,O,parseInt("function"==typeof i.offset?i.offset(n,r):i.offset,10),i.clip),w=C-y,L=s(),H=0,q=f(w,i),x=function(e,o){var a=t.pageYOffset;if(e==o||a==o||(y<o&&t.innerHeight+a)>=L)return A.cancelScroll(!0),p(n,o,u),g("scrollStop",i,n,r),S=null,M=null,!0},Q=function(e){S||(S=e),H+=e-S,E=H/parseInt(q,10),E=E>1?1:E,I=y+w*c(i,E),t.scrollTo(0,Math.floor(I)),x(I,C)||(M=t.requestAnimationFrame(Q),S=e)};0===t.pageYOffset&&t.scrollTo(0,0),h(n,u,i),g("scrollStart",i,n,r),A.cancelScroll(!0),t.requestAnimationFrame(Q)}};var C=function(e){if(!r()&&0===e.button&&!e.metaKey&&!e.ctrlKey&&"closest"in e.target&&(E=e.target.closest(a))&&"a"===E.tagName.toLowerCase()&&!e.target.closest(v.ignore)&&E.hostname===t.location.hostname&&E.pathname===t.location.pathname&&/#/.test(E.href)){var n=u(i(E.hash)),o=v.topOnEmptyHash&&"#"===n?document.documentElement:document.querySelector(n);o=o||"#top"!==n?o:document.documentElement,o&&(e.preventDefault(),m(v),A.animateScroll(o,E))}},w=function(t){if(null!==history.state&&history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(v)){var e=history.state.anchor;e&&0!==e&&!(e=document.querySelector(u(i(history.state.anchor))))||A.animateScroll(e,null,{updateURL:!1})}},L=function(t){I||(I=setTimeout((function(){I=null,O=d(b)}),66))};return A.destroy=function(){v&&(document.removeEventListener("click",C,!1),t.removeEventListener("resize",L,!1),t.removeEventListener("popstate",w,!1),A.cancelScroll(),v=null,S=null,E=null,b=null,O=null,I=null,M=null)},A.init=function(r){if(!n())throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser 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\ No newline at end of file
+/*! smooth-scroll v15.0.2 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
+!(function(t,e){"function"==typeof define&&define.amd?define([],(function(){return e(t)})):"object"==typeof exports?module.exports=e(t):t.SmoothScroll=e(t)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(t){"use strict";var e={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,speedAsDuration:!1,durationMax:null,durationMin:null,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},n=function(){return"querySelector"in document&&"addEventListener"in t&&"requestAnimationFrame"in t&&"closest"in t.Element.prototype},o=function(){var t={};return Array.prototype.forEach.call(arguments,(function(e){for(var n in e){if(!e.hasOwnProperty(n))return;t[n]=e[n]}})),t},r=function(e){return!!("matchMedia"in t&&t.matchMedia("(prefers-reduced-motion)").matches)},a=function(e){return parseInt(t.getComputedStyle(e).height,10)},i=function(t){var e;try{e=decodeURIComponent(t)}catch(n){e=t}return e},u=function(t){"#"===t.charAt(0)&&(t=t.substr(1));for(var e,n=String(t),o=n.length,r=-1,a="",i=n.charCodeAt(0);++r<o;){if(0===(e=n.charCodeAt(r)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");e>=1&&e<=31||127==e||0===r&&e>=48&&e<=57||1===r&&e>=48&&e<=57&&45===i?a+="\\"+e.toString(16)+" ":a+=e>=128||45===e||95===e||e>=48&&e<=57||e>=65&&e<=90||e>=97&&e<=122?n.charAt(r):"\\"+n.charAt(r)}var u;try{u=decodeURIComponent("#"+a)}catch(t){u="#"+a}return u},c=function(t,e){var n;return"easeInQuad"===t.easing&&(n=e*e),"easeOutQuad"===t.easing&&(n=e*(2-e)),"easeInOutQuad"===t.easing&&(n=e<.5?2*e*e:(4-2*e)*e-1),"easeInCubic"===t.easing&&(n=e*e*e),"easeOutCubic"===t.easing&&(n=--e*e*e+1),"easeInOutCubic"===t.easing&&(n=e<.5?4*e*e*e:(e-1)*(2*e-2)*(2*e-2)+1),"easeInQuart"===t.easing&&(n=e*e*e*e),"easeOutQuart"===t.easing&&(n=1- 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n=t.location.hash;n=n||t.pageYOffset,history.replaceState({smoothScroll:JSON.stringify(e),anchor:n||t.pageYOffset},document.title,n||t.location.href)}},h=function(t,e,n){e||history.pushState&&n.updateURL&&history.pushState({smoothScroll:JSON.stringify(n),anchor:t.id},document.title,t===document.documentElement?"#top":"#"+t.id)},p=function(e,n,o){0===e&&document.body.focus(),o||(e.focus(),document.activeElement!==e&&(e.setAttribute("tabindex","-1"),e.focus(),e.style.outline="none"),t.scrollTo(0,n))},g=function(e,n,o,r){if(n.emitEvents&&"function"==typeof t.CustomEvent){var a=new CustomEvent(e,{bubbles:!0,detail:{anchor:o,toggle:r}});document.dispatchEvent(a)}};return function(a,y){var v,S,E,b,O,I,M,A={};A.cancelScroll=function(t){cancelAnimationFrame(M),M=null,t||g("scrollCancel",v)},A.animateScroll=function(n,r,a){var i=o(v||e,a||{}),u="[object Number]"===Object.prototype.toString.call(n),m=u||!n.tagName?null:n;if(u||m){var y=t.pageYOffset;i.header&&!b&&(b=document.querySelector(i.header)),O||(O=d(b));var S,E,I,C=u?n:l(m,O,parseInt("function"==typeof i.offset?i.offset(n,r):i.offset,10),i.clip),w=C-y,L=s(),H=0,q=f(w,i),x=function(e,o){var a=t.pageYOffset;if(e==o||a==o||(y<o&&t.innerHeight+a)>=L)return A.cancelScroll(!0),p(n,o,u),g("scrollStop",i,n,r),S=null,M=null,!0},Q=function(e){S||(S=e),H+=e-S,E=H/parseInt(q,10),E=E>1?1:E,I=y+w*c(i,E),t.scrollTo(0,Math.floor(I)),x(I,C)||(M=t.requestAnimationFrame(Q),S=e)};0===t.pageYOffset&&t.scrollTo(0,0),h(n,u,i),g("scrollStart",i,n,r),A.cancelScroll(!0),t.requestAnimationFrame(Q)}};var C=function(e){if(!r()&&0===e.button&&!e.metaKey&&!e.ctrlKey&&"closest"in e.target&&(E=e.target.closest(a))&&"a"===E.tagName.toLowerCase()&&!e.target.closest(v.ignore)&&E.hostname===t.location.hostname&&E.pathname===t.location.pathname&&/#/.test(E.href)){var n=u(i(E.hash)),o=v.topOnEmptyHash&&"#"===n?document.documentElement:document.querySelector(n);o=o||"#top"!==n?o:document.documentElement,o&&(e.preventDefault(),m(v),A.animateScroll(o,E))}},w=function(t){if(null!==history.state&&history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(v)){var e=history.state.anchor;e&&0!==e&&!(e=document.querySelector(u(i(history.state.anchor))))||A.animateScroll(e,null,{updateURL:!1})}},L=function(t){I||(I=setTimeout((function(){I=null,O=d(b)}),66))};return A.destroy=function(){v&&(document.removeEventListener("click",C,!1),t.removeEventListener("resize",L,!1),t.removeEventListener("popstate",w,!1),A.cancelScroll(),v=null,S=null,E=null,b=null,O=null,I=null,M=null)},A.init=function(r){if(!n())throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";A.destroy(),v=o(e,r||{}),b=v.header?document.querySelector(v.header):null,O=d(b),document.addEventListener("click",C,!1),b&&t.addEventListener("resize",L,!1),v.updateURL&&v.popstate&&t.addEventListener("popstate",w,!1)},A.init(y),A}}));
\ No newline at end of file
diff --git a/docs/dist/smooth-scroll.polyfills.js b/docs/dist/smooth-scroll.polyfills.js
index 9cc4a19..66a97f7 100755
--- a/docs/dist/smooth-scroll.polyfills.js
+++ b/docs/dist/smooth-scroll.polyfills.js
@@ -1,5 +1,5 @@
 /*!
- * smooth-scroll v15.0.1: Animate scrolling to anchor links
+ * smooth-scroll v15.0.2: Animate scrolling to anchor links
  * (c) 2018 Chris Ferdinandi
  * MIT License
  * http://github.com/cferdinandi/smooth-scroll
@@ -367,7 +367,7 @@ if (window.Element && !Element.prototype.closest) {
 	var setHistory = function (options) {
 
 		// Make sure this should run
-		if (!history.replaceState || !options.updateURL || history.state) return;
+		if (!history.replaceState || history.state) return;
 
 		// Get the hash to use
 		var hash = window.location.hash;
diff --git a/docs/dist/smooth-scroll.polyfills.min.js b/docs/dist/smooth-scroll.polyfills.min.js
index 7287b54..6fff7f7 100755
--- a/docs/dist/smooth-scroll.polyfills.min.js
+++ b/docs/dist/smooth-scroll.polyfills.min.js
@@ -1,2 +1,2 @@
-/*! smooth-scroll v15.0.1 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
-window.Element&&!Element.prototype.closest&&(Element.prototype.closest=function(e){var t,n=(this.document||this.ownerDocument).querySelectorAll(e),o=this;do{for(t=n.length;--t>=0&&n.item(t)!==o;);}while(t<0&&(o=o.parentElement));return o}),(function(){function e(e,t){t=t||{bubbles:!1,cancelable:!1,detail:void 0};var n=document.createEvent("CustomEvent");return n.initCustomEvent(e,t.bubbles,t.cancelable,t.detail),n}if("function"==typeof window.CustomEvent)return!1;e.prototype=window.Event.prototype,window.CustomEvent=e})(),(function(){for(var e=0,t=["ms","moz","webkit","o"],n=0;n<t.length&&!window.requestAnimationFrame;++n)window.requestAnimationFrame=window[t[n]+"RequestAnimationFrame"],window.cancelAnimationFrame=window[t[n]+"CancelAnimationFrame"]||window[t[n]+"CancelRequestAnimationFrame"];window.requestAnimationFrame||(window.requestAnimationFrame=function(t,n){var o=(new Date).getTime(),i=Math.max(0,16-(o-e)),r=window.setTimeout((function(){t(o+i)}),i);return e=o+i,r}),window.cancelAnimationFrame||(window.cancelAnimationFrame=function(e){clearTimeout(e)})})(),(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,speedAsDuration:!1,durationMax:null,durationMin:null,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},n=function(){return"querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype},o=function(){var e={};return Array.prototype.forEach.call(arguments,(function(t){for(var n in t){if(!t.hasOwnProperty(n))return;e[n]=t[n]}})),e},i=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)},r=function(t){return parseInt(e.getComputedStyle(t).height,10)},a=function(e){var t;try{t=decodeURIComponent(e)}catch(n){t=e}return t},u=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,i=-1,r="",a=n.charCodeAt(0);++i<o;){if(0===(t=n.charCodeAt(i)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===i&&t>=48&&t<=57||1===i&&t>=48&&t<=57&&45===a?r+="\\"+t.toString(16)+" ":r+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(i):"\\"+n.charAt(i)}var u;try{u=decodeURIComponent("#"+r)}catch(e){u="#"+r}return u},c=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(t,n,o,i){var r=0;if(t.offsetParent)do{r+=t.offsetTop,t=t.offsetParent}while(t);return r=Math.max(r-n-o,0),i&&(r=Math.min(r,s()-e.innerHeight)),r},m=function(e){return e?r(e)+e.offsetTop:0},d=function(e,t){var n=t.speedAsDuration?t.speed:Math.abs(e/1e3*t.speed);return t.durationMax&&n>t.durationMax?t.durationMax:t.durationMin&&n<t.durationMin?t.durationMin:n},f=function(t){if(history.replaceState&&t.updateURL&&!history.state){var n=e.location.hash;n=n||e.pageYOffset,history.replaceState({smoothScroll:JSON.stringify(t),anchor:n||e.pageYOffset},document.title,n||e.location.href)}},h=function(e,t,n){t||history.pushState&&n.updateURL&&history.pushState({smoothScroll:JSON.stringify(n),anchor:e.id},document.title,e===document.documentElement?"#top":"#"+e.id)},p=function(t,n,o){0===t&&document.body.focus(),o||(t.focus(),document.activeElement!==t&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},g=function(t,n,o,i){if(n.emitEvents&&"function"==typeof e.CustomEvent){var r=new CustomEvent(t,{bubbles:!0,detail:{anchor:o,toggle:i}});document.dispatchEvent(r)}};return function(r,v){var y,w,E,S,b,A,O,C={};C.cancelScroll=function(e){cancelAnimationFrame(O),O=null,e||g("scrollCancel",y)},C.animateScroll=function(n,i,r){var a=o(y||t,r||{}),u="[object Number]"===Object.prototype.toString.call(n),f=u||!n.tagName?null:n;if(u||f){var v=e.pageYOffset;a.header&&!S&&(S=document.querySelector(a.header)),b||(b=m(S));var w,E,A,I=u?n:l(f,b,parseInt("function"==typeof a.offset?a.offset(n,i):a.offset,10),a.clip),q=I-v,M=s(),F=0,L=d(q,a),x=function(t,o){var r=e.pageYOffset;if(t==o||r==o||(v<o&&e.innerHeight+r)>=M)return C.cancelScroll(!0),p(n,o,u),g("scrollStop",a,n,i),w=null,O=null,!0},H=function(t){w||(w=t),F+=t-w,E=F/parseInt(L,10),E=E>1?1:E,A=v+q*c(a,E),e.scrollTo(0,Math.floor(A)),x(A,I)||(O=e.requestAnimationFrame(H),w=t)};0===e.pageYOffset&&e.scrollTo(0,0),h(n,u,a),g("scrollStart",a,n,i),C.cancelScroll(!0),e.requestAnimationFrame(H)}};var I=function(t){if(!i()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&"closest"in t.target&&(E=t.target.closest(r))&&"a"===E.tagName.toLowerCase()&&!t.target.closest(y.ignore)&&E.hostname===e.location.hostname&&E.pathname===e.location.pathname&&/#/.test(E.href)){var n=u(a(E.hash)),o=y.topOnEmptyHash&&"#"===n?document.documentElement:document.querySelector(n);o=o||"#top"!==n?o:document.documentElement,o&&(t.preventDefault(),f(y),C.animateScroll(o,E))}},q=function(e){if(null!==history.state&&history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(y)){var t=history.state.anchor;t&&0!==t&&!(t=document.querySelector(u(a(history.state.anchor))))||C.animateScroll(t,null,{updateURL:!1})}},M=function(e){A||(A=setTimeout((function(){A=null,b=m(S)}),66))};return C.destroy=function(){y&&(document.removeEventListener("click",I,!1),e.removeEventListener("resize",M,!1),e.removeEventListener("popstate",q,!1),C.cancelScroll(),y=null,w=null,E=null,S=null,b=null,A=null,O=null)},C.init=function(i){if(!n())throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";C.destroy(),y=o(t,i||{}),S=y.header?document.querySelector(y.header):null,b=m(S),document.addEventListener("click",I,!1),S&&e.addEventListener("resize",M,!1),y.updateURL&&y.popstate&&e.addEventListener("popstate",q,!1)},C.init(v),C}}));
\ No newline at end of file
+/*! smooth-scroll v15.0.2 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
+window.Element&&!Element.prototype.closest&&(Element.prototype.closest=function(e){var t,n=(this.document||this.ownerDocument).querySelectorAll(e),o=this;do{for(t=n.length;--t>=0&&n.item(t)!==o;);}while(t<0&&(o=o.parentElement));return o}),(function(){function e(e,t){t=t||{bubbles:!1,cancelable:!1,detail:void 0};var n=document.createEvent("CustomEvent");return n.initCustomEvent(e,t.bubbles,t.cancelable,t.detail),n}if("function"==typeof window.CustomEvent)return!1;e.prototype=window.Event.prototype,window.CustomEvent=e})(),(function(){for(var e=0,t=["ms","moz","webkit","o"],n=0;n<t.length&&!window.requestAnimationFrame;++n)window.requestAnimationFrame=window[t[n]+"RequestAnimationFrame"],window.cancelAnimationFrame=window[t[n]+"CancelAnimationFrame"]||window[t[n]+"CancelRequestAnimationFrame"];window.requestAnimationFrame||(window.requestAnimationFrame=function(t,n){var o=(new Date).getTime(),i=Math.max(0,16-(o-e)),r=window.setTimeout((function(){t(o+i)}),i);return e=o+i,r}),window.cancelAnimationFrame||(window.cancelAnimationFrame=function(e){clearTimeout(e)})})(),(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,speedAsDuration:!1,durationMax:null,durationMin:null,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},n=function(){return"querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype},o=function(){var e={};return Array.prototype.forEach.call(arguments,(function(t){for(var n in t){if(!t.hasOwnProperty(n))return;e[n]=t[n]}})),e},i=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)},r=function(t){return parseInt(e.getComputedStyle(t).height,10)},a=function(e){var t;try{t=decodeURIComponent(e)}catch(n){t=e}return t},u=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,i=-1,r="",a=n.charCodeAt(0);++i<o;){if(0===(t=n.charCodeAt(i)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===i&&t>=48&&t<=57||1===i&&t>=48&&t<=57&&45===a?r+="\\"+t.toString(16)+" ":r+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(i):"\\"+n.charAt(i)}var u;try{u=decodeURIComponent("#"+r)}catch(e){u="#"+r}return u},c=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(t,n,o,i){var r=0;if(t.offsetParent)do{r+=t.offsetTop,t=t.offsetParent}while(t);return r=Math.max(r-n-o,0),i&&(r=Math.min(r,s()-e.innerHeight)),r},m=function(e){return e?r(e)+e.offsetTop:0},d=function(e,t){var n=t.speedAsDuration?t.speed:Math.abs(e/1e3*t.speed);return t.durationMax&&n>t.durationMax?t.durationMax:t.durationMin&&n<t.durationMin?t.durationMin:n},f=function(t){if(history.replaceState&&!history.state){var n=e.location.hash;n=n||e.pageYOffset,history.replaceState({smoothScroll:JSON.stringify(t),anchor:n||e.pageYOffset},document.title,n||e.location.href)}},h=function(e,t,n){t||history.pushState&&n.updateURL&&history.pushState({smoothScroll:JSON.stringify(n),anchor:e.id},document.title,e===document.documentElement?"#top":"#"+e.id)},p=function(t,n,o){0===t&&document.body.focus(),o||(t.focus(),document.activeElement!==t&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},g=function(t,n,o,i){if(n.emitEvents&&"function"==typeof e.CustomEvent){var r=new CustomEvent(t,{bubbles:!0,detail:{anchor:o,toggle:i}});document.dispatchEvent(r)}};return function(r,v){var y,w,E,S,b,A,O,C={};C.cancelScroll=function(e){cancelAnimationFrame(O),O=null,e||g("scrollCancel",y)},C.animateScroll=function(n,i,r){var a=o(y||t,r||{}),u="[object Number]"===Object.prototype.toString.call(n),f=u||!n.tagName?null:n;if(u||f){var v=e.pageYOffset;a.header&&!S&&(S=document.querySelector(a.header)),b||(b=m(S));var w,E,A,I=u?n:l(f,b,parseInt("function"==typeof a.offset?a.offset(n,i):a.offset,10),a.clip),q=I-v,M=s(),F=0,L=d(q,a),x=function(t,o){var r=e.pageYOffset;if(t==o||r==o||(v<o&&e.innerHeight+r)>=M)return C.cancelScroll(!0),p(n,o,u),g("scrollStop",a,n,i),w=null,O=null,!0},H=function(t){w||(w=t),F+=t-w,E=F/parseInt(L,10),E=E>1?1:E,A=v+q*c(a,E),e.scrollTo(0,Math.floor(A)),x(A,I)||(O=e.requestAnimationFrame(H),w=t)};0===e.pageYOffset&&e.scrollTo(0,0),h(n,u,a),g("scrollStart",a,n,i),C.cancelScroll(!0),e.requestAnimationFrame(H)}};var I=function(t){if(!i()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&"closest"in t.target&&(E=t.target.closest(r))&&"a"===E.tagName.toLowerCase()&&!t.target.closest(y.ignore)&&E.hostname===e.location.hostname&&E.pathname===e.location.pathname&&/#/.test(E.href)){var n=u(a(E.hash)),o=y.topOnEmptyHash&&"#"===n?document.documentElement:document.querySelector(n);o=o||"#top"!==n?o:document.documentElement,o&&(t.preventDefault(),f(y),C.animateScroll(o,E))}},q=function(e){if(null!==history.state&&history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(y)){var t=history.state.anchor;t&&0!==t&&!(t=document.querySelector(u(a(history.state.anchor))))||C.animateScroll(t,null,{updateURL:!1})}},M=function(e){A||(A=setTimeout((function(){A=null,b=m(S)}),66))};return C.destroy=function(){y&&(document.removeEventListener("click",I,!1),e.removeEventListener("resize",M,!1),e.removeEventListener("popstate",q,!1),C.cancelScroll(),y=null,w=null,E=null,S=null,b=null,A=null,O=null)},C.init=function(i){if(!n())throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";C.destroy(),y=o(t,i||{}),S=y.header?document.querySelector(y.header):null,b=m(S),document.addEventListener("click",I,!1),S&&e.addEventListener("resize",M,!1),y.updateURL&&y.popstate&&e.addEventListener("popstate",q,!1)},C.init(v),C}}));
\ No newline at end of file
diff --git a/package.json b/package.json
index 356e5cd..214b334 100755
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
 	"name": "smooth-scroll",
-	"version": "15.0.1",
+	"version": "15.0.2",
 	"description": "Animate scrolling to anchor links",
 	"main": "./dist/smooth-scroll.polyfills.min.js",
 	"author": {
diff --git a/src/js/smooth-scroll.js b/src/js/smooth-scroll.js
index 482e940..da9ee2d 100755
--- a/src/js/smooth-scroll.js
+++ b/src/js/smooth-scroll.js
@@ -290,7 +290,7 @@
 	var setHistory = function (options) {
 
 		// Make sure this should run
-		if (!history.replaceState || !options.updateURL || history.state) return;
+		if (!history.replaceState || history.state) return;
 
 		// Get the hash to use
 		var hash = window.location.hash;

From 3e35e2d9cdb443de0d81bf8aff6c77676ff673be Mon Sep 17 00:00:00 2001
From: cferdinandi <chris@gomakethings.com>
Date: Mon, 19 Nov 2018 16:34:11 -0500
Subject: [PATCH 20/51] Undid updates

---
 dist/smooth-scroll.js                    | 2 +-
 dist/smooth-scroll.min.js                | 2 +-
 dist/smooth-scroll.polyfills.js          | 2 +-
 dist/smooth-scroll.polyfills.min.js      | 2 +-
 docs/dist/smooth-scroll.js               | 2 +-
 docs/dist/smooth-scroll.min.js           | 2 +-
 docs/dist/smooth-scroll.polyfills.js     | 2 +-
 docs/dist/smooth-scroll.polyfills.min.js | 2 +-
 src/js/smooth-scroll.js                  | 2 +-
 9 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/dist/smooth-scroll.js b/dist/smooth-scroll.js
index 267f6f1..f400362 100755
--- a/dist/smooth-scroll.js
+++ b/dist/smooth-scroll.js
@@ -297,7 +297,7 @@
 	var setHistory = function (options) {
 
 		// Make sure this should run
-		if (!history.replaceState || history.state) return;
+		if (!history.replaceState || !options.updateURL || history.state) return;
 
 		// Get the hash to use
 		var hash = window.location.hash;
diff --git a/dist/smooth-scroll.min.js b/dist/smooth-scroll.min.js
index abf9489..91fc58c 100755
--- a/dist/smooth-scroll.min.js
+++ b/dist/smooth-scroll.min.js
@@ -1,2 +1,2 @@
 /*! smooth-scroll v15.0.2 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
-!(function(t,e){"function"==typeof define&&define.amd?define([],(function(){return e(t)})):"object"==typeof exports?module.exports=e(t):t.SmoothScroll=e(t)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(t){"use strict";var e={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,speedAsDuration:!1,durationMax:null,durationMin:null,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},n=function(){return"querySelector"in document&&"addEventListener"in t&&"requestAnimationFrame"in t&&"closest"in t.Element.prototype},o=function(){var t={};return Array.prototype.forEach.call(arguments,(function(e){for(var n in e){if(!e.hasOwnProperty(n))return;t[n]=e[n]}})),t},r=function(e){return!!("matchMedia"in t&&t.matchMedia("(prefers-reduced-motion)").matches)},a=function(e){return parseInt(t.getComputedStyle(e).height,10)},i=function(t){var e;try{e=decodeURIComponent(t)}catch(n){e=t}return e},u=function(t){"#"===t.charAt(0)&&(t=t.substr(1));for(var e,n=String(t),o=n.length,r=-1,a="",i=n.charCodeAt(0);++r<o;){if(0===(e=n.charCodeAt(r)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");e>=1&&e<=31||127==e||0===r&&e>=48&&e<=57||1===r&&e>=48&&e<=57&&45===i?a+="\\"+e.toString(16)+" ":a+=e>=128||45===e||95===e||e>=48&&e<=57||e>=65&&e<=90||e>=97&&e<=122?n.charAt(r):"\\"+n.charAt(r)}var u;try{u=decodeURIComponent("#"+a)}catch(t){u="#"+a}return u},c=function(t,e){var n;return"easeInQuad"===t.easing&&(n=e*e),"easeOutQuad"===t.easing&&(n=e*(2-e)),"easeInOutQuad"===t.easing&&(n=e<.5?2*e*e:(4-2*e)*e-1),"easeInCubic"===t.easing&&(n=e*e*e),"easeOutCubic"===t.easing&&(n=--e*e*e+1),"easeInOutCubic"===t.easing&&(n=e<.5?4*e*e*e:(e-1)*(2*e-2)*(2*e-2)+1),"easeInQuart"===t.easing&&(n=e*e*e*e),"easeOutQuart"===t.easing&&(n=1- --e*e*e*e),"easeInOutQuart"===t.easing&&(n=e<.5?8*e*e*e*e:1-8*--e*e*e*e),"easeInQuint"===t.easing&&(n=e*e*e*e*e),"easeOutQuint"===t.easing&&(n=1+--e*e*e*e*e),"easeInOutQuint"===t.easing&&(n=e<.5?16*e*e*e*e*e:1+16*--e*e*e*e*e),t.customEasing&&(n=t.customEasing(e)),n||e},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(e,n,o,r){var a=0;if(e.offsetParent)do{a+=e.offsetTop,e=e.offsetParent}while(e);return a=Math.max(a-n-o,0),r&&(a=Math.min(a,s()-t.innerHeight)),a},d=function(t){return t?a(t)+t.offsetTop:0},f=function(t,e){var n=e.speedAsDuration?e.speed:Math.abs(t/1e3*e.speed);return e.durationMax&&n>e.durationMax?e.durationMax:e.durationMin&&n<e.durationMin?e.durationMin:n},m=function(e){if(history.replaceState&&!history.state){var n=t.location.hash;n=n||t.pageYOffset,history.replaceState({smoothScroll:JSON.stringify(e),anchor:n||t.pageYOffset},document.title,n||t.location.href)}},h=function(t,e,n){e||history.pushState&&n.updateURL&&history.pushState({smoothScroll:JSON.stringify(n),anchor:t.id},document.title,t===document.documentElement?"#top":"#"+t.id)},p=function(e,n,o){0===e&&document.body.focus(),o||(e.focus(),document.activeElement!==e&&(e.setAttribute("tabindex","-1"),e.focus(),e.style.outline="none"),t.scrollTo(0,n))},g=function(e,n,o,r){if(n.emitEvents&&"function"==typeof t.CustomEvent){var a=new CustomEvent(e,{bubbles:!0,detail:{anchor:o,toggle:r}});document.dispatchEvent(a)}};return function(a,y){var v,S,E,b,O,I,M,A={};A.cancelScroll=function(t){cancelAnimationFrame(M),M=null,t||g("scrollCancel",v)},A.animateScroll=function(n,r,a){var i=o(v||e,a||{}),u="[object Number]"===Object.prototype.toString.call(n),m=u||!n.tagName?null:n;if(u||m){var y=t.pageYOffset;i.header&&!b&&(b=document.querySelector(i.header)),O||(O=d(b));var S,E,I,C=u?n:l(m,O,parseInt("function"==typeof i.offset?i.offset(n,r):i.offset,10),i.clip),w=C-y,L=s(),H=0,q=f(w,i),x=function(e,o){var a=t.pageYOffset;if(e==o||a==o||(y<o&&t.innerHeight+a)>=L)return A.cancelScroll(!0),p(n,o,u),g("scrollStop",i,n,r),S=null,M=null,!0},Q=function(e){S||(S=e),H+=e-S,E=H/parseInt(q,10),E=E>1?1:E,I=y+w*c(i,E),t.scrollTo(0,Math.floor(I)),x(I,C)||(M=t.requestAnimationFrame(Q),S=e)};0===t.pageYOffset&&t.scrollTo(0,0),h(n,u,i),g("scrollStart",i,n,r),A.cancelScroll(!0),t.requestAnimationFrame(Q)}};var C=function(e){if(!r()&&0===e.button&&!e.metaKey&&!e.ctrlKey&&"closest"in e.target&&(E=e.target.closest(a))&&"a"===E.tagName.toLowerCase()&&!e.target.closest(v.ignore)&&E.hostname===t.location.hostname&&E.pathname===t.location.pathname&&/#/.test(E.href)){var n=u(i(E.hash)),o=v.topOnEmptyHash&&"#"===n?document.documentElement:document.querySelector(n);o=o||"#top"!==n?o:document.documentElement,o&&(e.preventDefault(),m(v),A.animateScroll(o,E))}},w=function(t){if(null!==history.state&&history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(v)){var e=history.state.anchor;e&&0!==e&&!(e=document.querySelector(u(i(history.state.anchor))))||A.animateScroll(e,null,{updateURL:!1})}},L=function(t){I||(I=setTimeout((function(){I=null,O=d(b)}),66))};return A.destroy=function(){v&&(document.removeEventListener("click",C,!1),t.removeEventListener("resize",L,!1),t.removeEventListener("popstate",w,!1),A.cancelScroll(),v=null,S=null,E=null,b=null,O=null,I=null,M=null)},A.init=function(r){if(!n())throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";A.destroy(),v=o(e,r||{}),b=v.header?document.querySelector(v.header):null,O=d(b),document.addEventListener("click",C,!1),b&&t.addEventListener("resize",L,!1),v.updateURL&&v.popstate&&t.addEventListener("popstate",w,!1)},A.init(y),A}}));
\ No newline at end of file
+!(function(t,e){"function"==typeof define&&define.amd?define([],(function(){return e(t)})):"object"==typeof exports?module.exports=e(t):t.SmoothScroll=e(t)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(t){"use strict";var e={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,speedAsDuration:!1,durationMax:null,durationMin:null,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},n=function(){return"querySelector"in document&&"addEventListener"in t&&"requestAnimationFrame"in t&&"closest"in t.Element.prototype},o=function(){var t={};return Array.prototype.forEach.call(arguments,(function(e){for(var n in e){if(!e.hasOwnProperty(n))return;t[n]=e[n]}})),t},r=function(e){return!!("matchMedia"in t&&t.matchMedia("(prefers-reduced-motion)").matches)},a=function(e){return parseInt(t.getComputedStyle(e).height,10)},i=function(t){var e;try{e=decodeURIComponent(t)}catch(n){e=t}return e},u=function(t){"#"===t.charAt(0)&&(t=t.substr(1));for(var e,n=String(t),o=n.length,r=-1,a="",i=n.charCodeAt(0);++r<o;){if(0===(e=n.charCodeAt(r)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");e>=1&&e<=31||127==e||0===r&&e>=48&&e<=57||1===r&&e>=48&&e<=57&&45===i?a+="\\"+e.toString(16)+" ":a+=e>=128||45===e||95===e||e>=48&&e<=57||e>=65&&e<=90||e>=97&&e<=122?n.charAt(r):"\\"+n.charAt(r)}var u;try{u=decodeURIComponent("#"+a)}catch(t){u="#"+a}return u},c=function(t,e){var n;return"easeInQuad"===t.easing&&(n=e*e),"easeOutQuad"===t.easing&&(n=e*(2-e)),"easeInOutQuad"===t.easing&&(n=e<.5?2*e*e:(4-2*e)*e-1),"easeInCubic"===t.easing&&(n=e*e*e),"easeOutCubic"===t.easing&&(n=--e*e*e+1),"easeInOutCubic"===t.easing&&(n=e<.5?4*e*e*e:(e-1)*(2*e-2)*(2*e-2)+1),"easeInQuart"===t.easing&&(n=e*e*e*e),"easeOutQuart"===t.easing&&(n=1- --e*e*e*e),"easeInOutQuart"===t.easing&&(n=e<.5?8*e*e*e*e:1-8*--e*e*e*e),"easeInQuint"===t.easing&&(n=e*e*e*e*e),"easeOutQuint"===t.easing&&(n=1+--e*e*e*e*e),"easeInOutQuint"===t.easing&&(n=e<.5?16*e*e*e*e*e:1+16*--e*e*e*e*e),t.customEasing&&(n=t.customEasing(e)),n||e},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(e,n,o,r){var a=0;if(e.offsetParent)do{a+=e.offsetTop,e=e.offsetParent}while(e);return a=Math.max(a-n-o,0),r&&(a=Math.min(a,s()-t.innerHeight)),a},d=function(t){return t?a(t)+t.offsetTop:0},f=function(t,e){var n=e.speedAsDuration?e.speed:Math.abs(t/1e3*e.speed);return e.durationMax&&n>e.durationMax?e.durationMax:e.durationMin&&n<e.durationMin?e.durationMin:n},m=function(e){if(history.replaceState&&e.updateURL&&!history.state){var n=t.location.hash;n=n||t.pageYOffset,history.replaceState({smoothScroll:JSON.stringify(e),anchor:n||t.pageYOffset},document.title,n||t.location.href)}},h=function(t,e,n){e||history.pushState&&n.updateURL&&history.pushState({smoothScroll:JSON.stringify(n),anchor:t.id},document.title,t===document.documentElement?"#top":"#"+t.id)},p=function(e,n,o){0===e&&document.body.focus(),o||(e.focus(),document.activeElement!==e&&(e.setAttribute("tabindex","-1"),e.focus(),e.style.outline="none"),t.scrollTo(0,n))},g=function(e,n,o,r){if(n.emitEvents&&"function"==typeof t.CustomEvent){var a=new CustomEvent(e,{bubbles:!0,detail:{anchor:o,toggle:r}});document.dispatchEvent(a)}};return function(a,y){var v,S,E,b,O,I,M,A={};A.cancelScroll=function(t){cancelAnimationFrame(M),M=null,t||g("scrollCancel",v)},A.animateScroll=function(n,r,a){var i=o(v||e,a||{}),u="[object Number]"===Object.prototype.toString.call(n),m=u||!n.tagName?null:n;if(u||m){var y=t.pageYOffset;i.header&&!b&&(b=document.querySelector(i.header)),O||(O=d(b));var S,E,I,C=u?n:l(m,O,parseInt("function"==typeof i.offset?i.offset(n,r):i.offset,10),i.clip),w=C-y,L=s(),H=0,q=f(w,i),x=function(e,o){var a=t.pageYOffset;if(e==o||a==o||(y<o&&t.innerHeight+a)>=L)return A.cancelScroll(!0),p(n,o,u),g("scrollStop",i,n,r),S=null,M=null,!0},Q=function(e){S||(S=e),H+=e-S,E=H/parseInt(q,10),E=E>1?1:E,I=y+w*c(i,E),t.scrollTo(0,Math.floor(I)),x(I,C)||(M=t.requestAnimationFrame(Q),S=e)};0===t.pageYOffset&&t.scrollTo(0,0),h(n,u,i),g("scrollStart",i,n,r),A.cancelScroll(!0),t.requestAnimationFrame(Q)}};var C=function(e){if(!r()&&0===e.button&&!e.metaKey&&!e.ctrlKey&&"closest"in e.target&&(E=e.target.closest(a))&&"a"===E.tagName.toLowerCase()&&!e.target.closest(v.ignore)&&E.hostname===t.location.hostname&&E.pathname===t.location.pathname&&/#/.test(E.href)){var n=u(i(E.hash)),o=v.topOnEmptyHash&&"#"===n?document.documentElement:document.querySelector(n);o=o||"#top"!==n?o:document.documentElement,o&&(e.preventDefault(),m(v),A.animateScroll(o,E))}},w=function(t){if(null!==history.state&&history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(v)){var e=history.state.anchor;e&&0!==e&&!(e=document.querySelector(u(i(history.state.anchor))))||A.animateScroll(e,null,{updateURL:!1})}},L=function(t){I||(I=setTimeout((function(){I=null,O=d(b)}),66))};return A.destroy=function(){v&&(document.removeEventListener("click",C,!1),t.removeEventListener("resize",L,!1),t.removeEventListener("popstate",w,!1),A.cancelScroll(),v=null,S=null,E=null,b=null,O=null,I=null,M=null)},A.init=function(r){if(!n())throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";A.destroy(),v=o(e,r||{}),b=v.header?document.querySelector(v.header):null,O=d(b),document.addEventListener("click",C,!1),b&&t.addEventListener("resize",L,!1),v.updateURL&&v.popstate&&t.addEventListener("popstate",w,!1)},A.init(y),A}}));
\ No newline at end of file
diff --git a/dist/smooth-scroll.polyfills.js b/dist/smooth-scroll.polyfills.js
index 66a97f7..fb793f8 100755
--- a/dist/smooth-scroll.polyfills.js
+++ b/dist/smooth-scroll.polyfills.js
@@ -367,7 +367,7 @@ if (window.Element && !Element.prototype.closest) {
 	var setHistory = function (options) {
 
 		// Make sure this should run
-		if (!history.replaceState || history.state) return;
+		if (!history.replaceState || !options.updateURL || history.state) return;
 
 		// Get the hash to use
 		var hash = window.location.hash;
diff --git a/dist/smooth-scroll.polyfills.min.js b/dist/smooth-scroll.polyfills.min.js
index 6fff7f7..e5af7f6 100755
--- a/dist/smooth-scroll.polyfills.min.js
+++ b/dist/smooth-scroll.polyfills.min.js
@@ -1,2 +1,2 @@
 /*! smooth-scroll v15.0.2 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
-window.Element&&!Element.prototype.closest&&(Element.prototype.closest=function(e){var t,n=(this.document||this.ownerDocument).querySelectorAll(e),o=this;do{for(t=n.length;--t>=0&&n.item(t)!==o;);}while(t<0&&(o=o.parentElement));return o}),(function(){function e(e,t){t=t||{bubbles:!1,cancelable:!1,detail:void 0};var n=document.createEvent("CustomEvent");return n.initCustomEvent(e,t.bubbles,t.cancelable,t.detail),n}if("function"==typeof window.CustomEvent)return!1;e.prototype=window.Event.prototype,window.CustomEvent=e})(),(function(){for(var e=0,t=["ms","moz","webkit","o"],n=0;n<t.length&&!window.requestAnimationFrame;++n)window.requestAnimationFrame=window[t[n]+"RequestAnimationFrame"],window.cancelAnimationFrame=window[t[n]+"CancelAnimationFrame"]||window[t[n]+"CancelRequestAnimationFrame"];window.requestAnimationFrame||(window.requestAnimationFrame=function(t,n){var o=(new Date).getTime(),i=Math.max(0,16-(o-e)),r=window.setTimeout((function(){t(o+i)}),i);return e=o+i,r}),window.cancelAnimationFrame||(window.cancelAnimationFrame=function(e){clearTimeout(e)})})(),(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,speedAsDuration:!1,durationMax:null,durationMin:null,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},n=function(){return"querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype},o=function(){var e={};return Array.prototype.forEach.call(arguments,(function(t){for(var n in t){if(!t.hasOwnProperty(n))return;e[n]=t[n]}})),e},i=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)},r=function(t){return parseInt(e.getComputedStyle(t).height,10)},a=function(e){var t;try{t=decodeURIComponent(e)}catch(n){t=e}return t},u=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,i=-1,r="",a=n.charCodeAt(0);++i<o;){if(0===(t=n.charCodeAt(i)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===i&&t>=48&&t<=57||1===i&&t>=48&&t<=57&&45===a?r+="\\"+t.toString(16)+" ":r+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(i):"\\"+n.charAt(i)}var u;try{u=decodeURIComponent("#"+r)}catch(e){u="#"+r}return u},c=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(t,n,o,i){var r=0;if(t.offsetParent)do{r+=t.offsetTop,t=t.offsetParent}while(t);return r=Math.max(r-n-o,0),i&&(r=Math.min(r,s()-e.innerHeight)),r},m=function(e){return e?r(e)+e.offsetTop:0},d=function(e,t){var n=t.speedAsDuration?t.speed:Math.abs(e/1e3*t.speed);return t.durationMax&&n>t.durationMax?t.durationMax:t.durationMin&&n<t.durationMin?t.durationMin:n},f=function(t){if(history.replaceState&&!history.state){var n=e.location.hash;n=n||e.pageYOffset,history.replaceState({smoothScroll:JSON.stringify(t),anchor:n||e.pageYOffset},document.title,n||e.location.href)}},h=function(e,t,n){t||history.pushState&&n.updateURL&&history.pushState({smoothScroll:JSON.stringify(n),anchor:e.id},document.title,e===document.documentElement?"#top":"#"+e.id)},p=function(t,n,o){0===t&&document.body.focus(),o||(t.focus(),document.activeElement!==t&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},g=function(t,n,o,i){if(n.emitEvents&&"function"==typeof e.CustomEvent){var r=new CustomEvent(t,{bubbles:!0,detail:{anchor:o,toggle:i}});document.dispatchEvent(r)}};return function(r,v){var y,w,E,S,b,A,O,C={};C.cancelScroll=function(e){cancelAnimationFrame(O),O=null,e||g("scrollCancel",y)},C.animateScroll=function(n,i,r){var a=o(y||t,r||{}),u="[object Number]"===Object.prototype.toString.call(n),f=u||!n.tagName?null:n;if(u||f){var v=e.pageYOffset;a.header&&!S&&(S=document.querySelector(a.header)),b||(b=m(S));var w,E,A,I=u?n:l(f,b,parseInt("function"==typeof a.offset?a.offset(n,i):a.offset,10),a.clip),q=I-v,M=s(),F=0,L=d(q,a),x=function(t,o){var r=e.pageYOffset;if(t==o||r==o||(v<o&&e.innerHeight+r)>=M)return C.cancelScroll(!0),p(n,o,u),g("scrollStop",a,n,i),w=null,O=null,!0},H=function(t){w||(w=t),F+=t-w,E=F/parseInt(L,10),E=E>1?1:E,A=v+q*c(a,E),e.scrollTo(0,Math.floor(A)),x(A,I)||(O=e.requestAnimationFrame(H),w=t)};0===e.pageYOffset&&e.scrollTo(0,0),h(n,u,a),g("scrollStart",a,n,i),C.cancelScroll(!0),e.requestAnimationFrame(H)}};var I=function(t){if(!i()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&"closest"in t.target&&(E=t.target.closest(r))&&"a"===E.tagName.toLowerCase()&&!t.target.closest(y.ignore)&&E.hostname===e.location.hostname&&E.pathname===e.location.pathname&&/#/.test(E.href)){var n=u(a(E.hash)),o=y.topOnEmptyHash&&"#"===n?document.documentElement:document.querySelector(n);o=o||"#top"!==n?o:document.documentElement,o&&(t.preventDefault(),f(y),C.animateScroll(o,E))}},q=function(e){if(null!==history.state&&history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(y)){var t=history.state.anchor;t&&0!==t&&!(t=document.querySelector(u(a(history.state.anchor))))||C.animateScroll(t,null,{updateURL:!1})}},M=function(e){A||(A=setTimeout((function(){A=null,b=m(S)}),66))};return C.destroy=function(){y&&(document.removeEventListener("click",I,!1),e.removeEventListener("resize",M,!1),e.removeEventListener("popstate",q,!1),C.cancelScroll(),y=null,w=null,E=null,S=null,b=null,A=null,O=null)},C.init=function(i){if(!n())throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";C.destroy(),y=o(t,i||{}),S=y.header?document.querySelector(y.header):null,b=m(S),document.addEventListener("click",I,!1),S&&e.addEventListener("resize",M,!1),y.updateURL&&y.popstate&&e.addEventListener("popstate",q,!1)},C.init(v),C}}));
\ No newline at end of file
+window.Element&&!Element.prototype.closest&&(Element.prototype.closest=function(e){var t,n=(this.document||this.ownerDocument).querySelectorAll(e),o=this;do{for(t=n.length;--t>=0&&n.item(t)!==o;);}while(t<0&&(o=o.parentElement));return o}),(function(){function e(e,t){t=t||{bubbles:!1,cancelable:!1,detail:void 0};var n=document.createEvent("CustomEvent");return n.initCustomEvent(e,t.bubbles,t.cancelable,t.detail),n}if("function"==typeof window.CustomEvent)return!1;e.prototype=window.Event.prototype,window.CustomEvent=e})(),(function(){for(var e=0,t=["ms","moz","webkit","o"],n=0;n<t.length&&!window.requestAnimationFrame;++n)window.requestAnimationFrame=window[t[n]+"RequestAnimationFrame"],window.cancelAnimationFrame=window[t[n]+"CancelAnimationFrame"]||window[t[n]+"CancelRequestAnimationFrame"];window.requestAnimationFrame||(window.requestAnimationFrame=function(t,n){var o=(new Date).getTime(),i=Math.max(0,16-(o-e)),r=window.setTimeout((function(){t(o+i)}),i);return e=o+i,r}),window.cancelAnimationFrame||(window.cancelAnimationFrame=function(e){clearTimeout(e)})})(),(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,speedAsDuration:!1,durationMax:null,durationMin:null,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},n=function(){return"querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype},o=function(){var e={};return Array.prototype.forEach.call(arguments,(function(t){for(var n in t){if(!t.hasOwnProperty(n))return;e[n]=t[n]}})),e},i=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)},r=function(t){return parseInt(e.getComputedStyle(t).height,10)},a=function(e){var t;try{t=decodeURIComponent(e)}catch(n){t=e}return t},u=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,i=-1,r="",a=n.charCodeAt(0);++i<o;){if(0===(t=n.charCodeAt(i)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===i&&t>=48&&t<=57||1===i&&t>=48&&t<=57&&45===a?r+="\\"+t.toString(16)+" ":r+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(i):"\\"+n.charAt(i)}var u;try{u=decodeURIComponent("#"+r)}catch(e){u="#"+r}return u},c=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(t,n,o,i){var r=0;if(t.offsetParent)do{r+=t.offsetTop,t=t.offsetParent}while(t);return r=Math.max(r-n-o,0),i&&(r=Math.min(r,s()-e.innerHeight)),r},m=function(e){return e?r(e)+e.offsetTop:0},d=function(e,t){var n=t.speedAsDuration?t.speed:Math.abs(e/1e3*t.speed);return t.durationMax&&n>t.durationMax?t.durationMax:t.durationMin&&n<t.durationMin?t.durationMin:n},f=function(t){if(history.replaceState&&t.updateURL&&!history.state){var n=e.location.hash;n=n||e.pageYOffset,history.replaceState({smoothScroll:JSON.stringify(t),anchor:n||e.pageYOffset},document.title,n||e.location.href)}},h=function(e,t,n){t||history.pushState&&n.updateURL&&history.pushState({smoothScroll:JSON.stringify(n),anchor:e.id},document.title,e===document.documentElement?"#top":"#"+e.id)},p=function(t,n,o){0===t&&document.body.focus(),o||(t.focus(),document.activeElement!==t&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},g=function(t,n,o,i){if(n.emitEvents&&"function"==typeof e.CustomEvent){var r=new CustomEvent(t,{bubbles:!0,detail:{anchor:o,toggle:i}});document.dispatchEvent(r)}};return function(r,v){var y,w,E,S,b,A,O,C={};C.cancelScroll=function(e){cancelAnimationFrame(O),O=null,e||g("scrollCancel",y)},C.animateScroll=function(n,i,r){var a=o(y||t,r||{}),u="[object Number]"===Object.prototype.toString.call(n),f=u||!n.tagName?null:n;if(u||f){var v=e.pageYOffset;a.header&&!S&&(S=document.querySelector(a.header)),b||(b=m(S));var w,E,A,I=u?n:l(f,b,parseInt("function"==typeof a.offset?a.offset(n,i):a.offset,10),a.clip),q=I-v,M=s(),F=0,L=d(q,a),x=function(t,o){var r=e.pageYOffset;if(t==o||r==o||(v<o&&e.innerHeight+r)>=M)return C.cancelScroll(!0),p(n,o,u),g("scrollStop",a,n,i),w=null,O=null,!0},H=function(t){w||(w=t),F+=t-w,E=F/parseInt(L,10),E=E>1?1:E,A=v+q*c(a,E),e.scrollTo(0,Math.floor(A)),x(A,I)||(O=e.requestAnimationFrame(H),w=t)};0===e.pageYOffset&&e.scrollTo(0,0),h(n,u,a),g("scrollStart",a,n,i),C.cancelScroll(!0),e.requestAnimationFrame(H)}};var I=function(t){if(!i()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&"closest"in t.target&&(E=t.target.closest(r))&&"a"===E.tagName.toLowerCase()&&!t.target.closest(y.ignore)&&E.hostname===e.location.hostname&&E.pathname===e.location.pathname&&/#/.test(E.href)){var n=u(a(E.hash)),o=y.topOnEmptyHash&&"#"===n?document.documentElement:document.querySelector(n);o=o||"#top"!==n?o:document.documentElement,o&&(t.preventDefault(),f(y),C.animateScroll(o,E))}},q=function(e){if(null!==history.state&&history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(y)){var t=history.state.anchor;t&&0!==t&&!(t=document.querySelector(u(a(history.state.anchor))))||C.animateScroll(t,null,{updateURL:!1})}},M=function(e){A||(A=setTimeout((function(){A=null,b=m(S)}),66))};return C.destroy=function(){y&&(document.removeEventListener("click",I,!1),e.removeEventListener("resize",M,!1),e.removeEventListener("popstate",q,!1),C.cancelScroll(),y=null,w=null,E=null,S=null,b=null,A=null,O=null)},C.init=function(i){if(!n())throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";C.destroy(),y=o(t,i||{}),S=y.header?document.querySelector(y.header):null,b=m(S),document.addEventListener("click",I,!1),S&&e.addEventListener("resize",M,!1),y.updateURL&&y.popstate&&e.addEventListener("popstate",q,!1)},C.init(v),C}}));
\ No newline at end of file
diff --git a/docs/dist/smooth-scroll.js b/docs/dist/smooth-scroll.js
index 267f6f1..f400362 100755
--- a/docs/dist/smooth-scroll.js
+++ b/docs/dist/smooth-scroll.js
@@ -297,7 +297,7 @@
 	var setHistory = function (options) {
 
 		// Make sure this should run
-		if (!history.replaceState || history.state) return;
+		if (!history.replaceState || !options.updateURL || history.state) return;
 
 		// Get the hash to use
 		var hash = window.location.hash;
diff --git a/docs/dist/smooth-scroll.min.js b/docs/dist/smooth-scroll.min.js
index abf9489..91fc58c 100755
--- a/docs/dist/smooth-scroll.min.js
+++ b/docs/dist/smooth-scroll.min.js
@@ -1,2 +1,2 @@
 /*! smooth-scroll v15.0.2 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
-!(function(t,e){"function"==typeof define&&define.amd?define([],(function(){return e(t)})):"object"==typeof exports?module.exports=e(t):t.SmoothScroll=e(t)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(t){"use strict";var e={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,speedAsDuration:!1,durationMax:null,durationMin:null,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},n=function(){return"querySelector"in document&&"addEventListener"in t&&"requestAnimationFrame"in t&&"closest"in t.Element.prototype},o=function(){var t={};return Array.prototype.forEach.call(arguments,(function(e){for(var n in e){if(!e.hasOwnProperty(n))return;t[n]=e[n]}})),t},r=function(e){return!!("matchMedia"in t&&t.matchMedia("(prefers-reduced-motion)").matches)},a=function(e){return parseInt(t.getComputedStyle(e).height,10)},i=function(t){var e;try{e=decodeURIComponent(t)}catch(n){e=t}return e},u=function(t){"#"===t.charAt(0)&&(t=t.substr(1));for(var e,n=String(t),o=n.length,r=-1,a="",i=n.charCodeAt(0);++r<o;){if(0===(e=n.charCodeAt(r)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");e>=1&&e<=31||127==e||0===r&&e>=48&&e<=57||1===r&&e>=48&&e<=57&&45===i?a+="\\"+e.toString(16)+" ":a+=e>=128||45===e||95===e||e>=48&&e<=57||e>=65&&e<=90||e>=97&&e<=122?n.charAt(r):"\\"+n.charAt(r)}var u;try{u=decodeURIComponent("#"+a)}catch(t){u="#"+a}return u},c=function(t,e){var n;return"easeInQuad"===t.easing&&(n=e*e),"easeOutQuad"===t.easing&&(n=e*(2-e)),"easeInOutQuad"===t.easing&&(n=e<.5?2*e*e:(4-2*e)*e-1),"easeInCubic"===t.easing&&(n=e*e*e),"easeOutCubic"===t.easing&&(n=--e*e*e+1),"easeInOutCubic"===t.easing&&(n=e<.5?4*e*e*e:(e-1)*(2*e-2)*(2*e-2)+1),"easeInQuart"===t.easing&&(n=e*e*e*e),"easeOutQuart"===t.easing&&(n=1- --e*e*e*e),"easeInOutQuart"===t.easing&&(n=e<.5?8*e*e*e*e:1-8*--e*e*e*e),"easeInQuint"===t.easing&&(n=e*e*e*e*e),"easeOutQuint"===t.easing&&(n=1+--e*e*e*e*e),"easeInOutQuint"===t.easing&&(n=e<.5?16*e*e*e*e*e:1+16*--e*e*e*e*e),t.customEasing&&(n=t.customEasing(e)),n||e},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(e,n,o,r){var a=0;if(e.offsetParent)do{a+=e.offsetTop,e=e.offsetParent}while(e);return a=Math.max(a-n-o,0),r&&(a=Math.min(a,s()-t.innerHeight)),a},d=function(t){return t?a(t)+t.offsetTop:0},f=function(t,e){var n=e.speedAsDuration?e.speed:Math.abs(t/1e3*e.speed);return e.durationMax&&n>e.durationMax?e.durationMax:e.durationMin&&n<e.durationMin?e.durationMin:n},m=function(e){if(history.replaceState&&!history.state){var n=t.location.hash;n=n||t.pageYOffset,history.replaceState({smoothScroll:JSON.stringify(e),anchor:n||t.pageYOffset},document.title,n||t.location.href)}},h=function(t,e,n){e||history.pushState&&n.updateURL&&history.pushState({smoothScroll:JSON.stringify(n),anchor:t.id},document.title,t===document.documentElement?"#top":"#"+t.id)},p=function(e,n,o){0===e&&document.body.focus(),o||(e.focus(),document.activeElement!==e&&(e.setAttribute("tabindex","-1"),e.focus(),e.style.outline="none"),t.scrollTo(0,n))},g=function(e,n,o,r){if(n.emitEvents&&"function"==typeof t.CustomEvent){var a=new CustomEvent(e,{bubbles:!0,detail:{anchor:o,toggle:r}});document.dispatchEvent(a)}};return function(a,y){var v,S,E,b,O,I,M,A={};A.cancelScroll=function(t){cancelAnimationFrame(M),M=null,t||g("scrollCancel",v)},A.animateScroll=function(n,r,a){var i=o(v||e,a||{}),u="[object Number]"===Object.prototype.toString.call(n),m=u||!n.tagName?null:n;if(u||m){var y=t.pageYOffset;i.header&&!b&&(b=document.querySelector(i.header)),O||(O=d(b));var S,E,I,C=u?n:l(m,O,parseInt("function"==typeof i.offset?i.offset(n,r):i.offset,10),i.clip),w=C-y,L=s(),H=0,q=f(w,i),x=function(e,o){var a=t.pageYOffset;if(e==o||a==o||(y<o&&t.innerHeight+a)>=L)return A.cancelScroll(!0),p(n,o,u),g("scrollStop",i,n,r),S=null,M=null,!0},Q=function(e){S||(S=e),H+=e-S,E=H/parseInt(q,10),E=E>1?1:E,I=y+w*c(i,E),t.scrollTo(0,Math.floor(I)),x(I,C)||(M=t.requestAnimationFrame(Q),S=e)};0===t.pageYOffset&&t.scrollTo(0,0),h(n,u,i),g("scrollStart",i,n,r),A.cancelScroll(!0),t.requestAnimationFrame(Q)}};var C=function(e){if(!r()&&0===e.button&&!e.metaKey&&!e.ctrlKey&&"closest"in e.target&&(E=e.target.closest(a))&&"a"===E.tagName.toLowerCase()&&!e.target.closest(v.ignore)&&E.hostname===t.location.hostname&&E.pathname===t.location.pathname&&/#/.test(E.href)){var n=u(i(E.hash)),o=v.topOnEmptyHash&&"#"===n?document.documentElement:document.querySelector(n);o=o||"#top"!==n?o:document.documentElement,o&&(e.preventDefault(),m(v),A.animateScroll(o,E))}},w=function(t){if(null!==history.state&&history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(v)){var e=history.state.anchor;e&&0!==e&&!(e=document.querySelector(u(i(history.state.anchor))))||A.animateScroll(e,null,{updateURL:!1})}},L=function(t){I||(I=setTimeout((function(){I=null,O=d(b)}),66))};return A.destroy=function(){v&&(document.removeEventListener("click",C,!1),t.removeEventListener("resize",L,!1),t.removeEventListener("popstate",w,!1),A.cancelScroll(),v=null,S=null,E=null,b=null,O=null,I=null,M=null)},A.init=function(r){if(!n())throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";A.destroy(),v=o(e,r||{}),b=v.header?document.querySelector(v.header):null,O=d(b),document.addEventListener("click",C,!1),b&&t.addEventListener("resize",L,!1),v.updateURL&&v.popstate&&t.addEventListener("popstate",w,!1)},A.init(y),A}}));
\ No newline at end of file
+!(function(t,e){"function"==typeof define&&define.amd?define([],(function(){return e(t)})):"object"==typeof exports?module.exports=e(t):t.SmoothScroll=e(t)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(t){"use strict";var e={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,speedAsDuration:!1,durationMax:null,durationMin:null,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},n=function(){return"querySelector"in document&&"addEventListener"in t&&"requestAnimationFrame"in t&&"closest"in t.Element.prototype},o=function(){var t={};return Array.prototype.forEach.call(arguments,(function(e){for(var n in e){if(!e.hasOwnProperty(n))return;t[n]=e[n]}})),t},r=function(e){return!!("matchMedia"in t&&t.matchMedia("(prefers-reduced-motion)").matches)},a=function(e){return parseInt(t.getComputedStyle(e).height,10)},i=function(t){var e;try{e=decodeURIComponent(t)}catch(n){e=t}return e},u=function(t){"#"===t.charAt(0)&&(t=t.substr(1));for(var e,n=String(t),o=n.length,r=-1,a="",i=n.charCodeAt(0);++r<o;){if(0===(e=n.charCodeAt(r)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");e>=1&&e<=31||127==e||0===r&&e>=48&&e<=57||1===r&&e>=48&&e<=57&&45===i?a+="\\"+e.toString(16)+" ":a+=e>=128||45===e||95===e||e>=48&&e<=57||e>=65&&e<=90||e>=97&&e<=122?n.charAt(r):"\\"+n.charAt(r)}var u;try{u=decodeURIComponent("#"+a)}catch(t){u="#"+a}return u},c=function(t,e){var n;return"easeInQuad"===t.easing&&(n=e*e),"easeOutQuad"===t.easing&&(n=e*(2-e)),"easeInOutQuad"===t.easing&&(n=e<.5?2*e*e:(4-2*e)*e-1),"easeInCubic"===t.easing&&(n=e*e*e),"easeOutCubic"===t.easing&&(n=--e*e*e+1),"easeInOutCubic"===t.easing&&(n=e<.5?4*e*e*e:(e-1)*(2*e-2)*(2*e-2)+1),"easeInQuart"===t.easing&&(n=e*e*e*e),"easeOutQuart"===t.easing&&(n=1- 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n=t.location.hash;n=n||t.pageYOffset,history.replaceState({smoothScroll:JSON.stringify(e),anchor:n||t.pageYOffset},document.title,n||t.location.href)}},h=function(t,e,n){e||history.pushState&&n.updateURL&&history.pushState({smoothScroll:JSON.stringify(n),anchor:t.id},document.title,t===document.documentElement?"#top":"#"+t.id)},p=function(e,n,o){0===e&&document.body.focus(),o||(e.focus(),document.activeElement!==e&&(e.setAttribute("tabindex","-1"),e.focus(),e.style.outline="none"),t.scrollTo(0,n))},g=function(e,n,o,r){if(n.emitEvents&&"function"==typeof t.CustomEvent){var a=new CustomEvent(e,{bubbles:!0,detail:{anchor:o,toggle:r}});document.dispatchEvent(a)}};return function(a,y){var v,S,E,b,O,I,M,A={};A.cancelScroll=function(t){cancelAnimationFrame(M),M=null,t||g("scrollCancel",v)},A.animateScroll=function(n,r,a){var i=o(v||e,a||{}),u="[object Number]"===Object.prototype.toString.call(n),m=u||!n.tagName?null:n;if(u||m){var y=t.pageYOffset;i.header&&!b&&(b=document.querySelector(i.header)),O||(O=d(b));var S,E,I,C=u?n:l(m,O,parseInt("function"==typeof i.offset?i.offset(n,r):i.offset,10),i.clip),w=C-y,L=s(),H=0,q=f(w,i),x=function(e,o){var a=t.pageYOffset;if(e==o||a==o||(y<o&&t.innerHeight+a)>=L)return A.cancelScroll(!0),p(n,o,u),g("scrollStop",i,n,r),S=null,M=null,!0},Q=function(e){S||(S=e),H+=e-S,E=H/parseInt(q,10),E=E>1?1:E,I=y+w*c(i,E),t.scrollTo(0,Math.floor(I)),x(I,C)||(M=t.requestAnimationFrame(Q),S=e)};0===t.pageYOffset&&t.scrollTo(0,0),h(n,u,i),g("scrollStart",i,n,r),A.cancelScroll(!0),t.requestAnimationFrame(Q)}};var C=function(e){if(!r()&&0===e.button&&!e.metaKey&&!e.ctrlKey&&"closest"in e.target&&(E=e.target.closest(a))&&"a"===E.tagName.toLowerCase()&&!e.target.closest(v.ignore)&&E.hostname===t.location.hostname&&E.pathname===t.location.pathname&&/#/.test(E.href)){var n=u(i(E.hash)),o=v.topOnEmptyHash&&"#"===n?document.documentElement:document.querySelector(n);o=o||"#top"!==n?o:document.documentElement,o&&(e.preventDefault(),m(v),A.animateScroll(o,E))}},w=function(t){if(null!==history.state&&history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(v)){var e=history.state.anchor;e&&0!==e&&!(e=document.querySelector(u(i(history.state.anchor))))||A.animateScroll(e,null,{updateURL:!1})}},L=function(t){I||(I=setTimeout((function(){I=null,O=d(b)}),66))};return A.destroy=function(){v&&(document.removeEventListener("click",C,!1),t.removeEventListener("resize",L,!1),t.removeEventListener("popstate",w,!1),A.cancelScroll(),v=null,S=null,E=null,b=null,O=null,I=null,M=null)},A.init=function(r){if(!n())throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";A.destroy(),v=o(e,r||{}),b=v.header?document.querySelector(v.header):null,O=d(b),document.addEventListener("click",C,!1),b&&t.addEventListener("resize",L,!1),v.updateURL&&v.popstate&&t.addEventListener("popstate",w,!1)},A.init(y),A}}));
\ No newline at end of file
diff --git a/docs/dist/smooth-scroll.polyfills.js b/docs/dist/smooth-scroll.polyfills.js
index 66a97f7..fb793f8 100755
--- a/docs/dist/smooth-scroll.polyfills.js
+++ b/docs/dist/smooth-scroll.polyfills.js
@@ -367,7 +367,7 @@ if (window.Element && !Element.prototype.closest) {
 	var setHistory = function (options) {
 
 		// Make sure this should run
-		if (!history.replaceState || history.state) return;
+		if (!history.replaceState || !options.updateURL || history.state) return;
 
 		// Get the hash to use
 		var hash = window.location.hash;
diff --git a/docs/dist/smooth-scroll.polyfills.min.js b/docs/dist/smooth-scroll.polyfills.min.js
index 6fff7f7..e5af7f6 100755
--- a/docs/dist/smooth-scroll.polyfills.min.js
+++ b/docs/dist/smooth-scroll.polyfills.min.js
@@ -1,2 +1,2 @@
 /*! smooth-scroll v15.0.2 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
-window.Element&&!Element.prototype.closest&&(Element.prototype.closest=function(e){var t,n=(this.document||this.ownerDocument).querySelectorAll(e),o=this;do{for(t=n.length;--t>=0&&n.item(t)!==o;);}while(t<0&&(o=o.parentElement));return o}),(function(){function e(e,t){t=t||{bubbles:!1,cancelable:!1,detail:void 0};var n=document.createEvent("CustomEvent");return n.initCustomEvent(e,t.bubbles,t.cancelable,t.detail),n}if("function"==typeof window.CustomEvent)return!1;e.prototype=window.Event.prototype,window.CustomEvent=e})(),(function(){for(var e=0,t=["ms","moz","webkit","o"],n=0;n<t.length&&!window.requestAnimationFrame;++n)window.requestAnimationFrame=window[t[n]+"RequestAnimationFrame"],window.cancelAnimationFrame=window[t[n]+"CancelAnimationFrame"]||window[t[n]+"CancelRequestAnimationFrame"];window.requestAnimationFrame||(window.requestAnimationFrame=function(t,n){var o=(new Date).getTime(),i=Math.max(0,16-(o-e)),r=window.setTimeout((function(){t(o+i)}),i);return e=o+i,r}),window.cancelAnimationFrame||(window.cancelAnimationFrame=function(e){clearTimeout(e)})})(),(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,speedAsDuration:!1,durationMax:null,durationMin:null,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},n=function(){return"querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype},o=function(){var e={};return Array.prototype.forEach.call(arguments,(function(t){for(var n in t){if(!t.hasOwnProperty(n))return;e[n]=t[n]}})),e},i=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)},r=function(t){return parseInt(e.getComputedStyle(t).height,10)},a=function(e){var t;try{t=decodeURIComponent(e)}catch(n){t=e}return t},u=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,i=-1,r="",a=n.charCodeAt(0);++i<o;){if(0===(t=n.charCodeAt(i)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===i&&t>=48&&t<=57||1===i&&t>=48&&t<=57&&45===a?r+="\\"+t.toString(16)+" ":r+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(i):"\\"+n.charAt(i)}var u;try{u=decodeURIComponent("#"+r)}catch(e){u="#"+r}return u},c=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(t,n,o,i){var r=0;if(t.offsetParent)do{r+=t.offsetTop,t=t.offsetParent}while(t);return r=Math.max(r-n-o,0),i&&(r=Math.min(r,s()-e.innerHeight)),r},m=function(e){return e?r(e)+e.offsetTop:0},d=function(e,t){var n=t.speedAsDuration?t.speed:Math.abs(e/1e3*t.speed);return t.durationMax&&n>t.durationMax?t.durationMax:t.durationMin&&n<t.durationMin?t.durationMin:n},f=function(t){if(history.replaceState&&!history.state){var n=e.location.hash;n=n||e.pageYOffset,history.replaceState({smoothScroll:JSON.stringify(t),anchor:n||e.pageYOffset},document.title,n||e.location.href)}},h=function(e,t,n){t||history.pushState&&n.updateURL&&history.pushState({smoothScroll:JSON.stringify(n),anchor:e.id},document.title,e===document.documentElement?"#top":"#"+e.id)},p=function(t,n,o){0===t&&document.body.focus(),o||(t.focus(),document.activeElement!==t&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},g=function(t,n,o,i){if(n.emitEvents&&"function"==typeof e.CustomEvent){var r=new CustomEvent(t,{bubbles:!0,detail:{anchor:o,toggle:i}});document.dispatchEvent(r)}};return function(r,v){var y,w,E,S,b,A,O,C={};C.cancelScroll=function(e){cancelAnimationFrame(O),O=null,e||g("scrollCancel",y)},C.animateScroll=function(n,i,r){var a=o(y||t,r||{}),u="[object Number]"===Object.prototype.toString.call(n),f=u||!n.tagName?null:n;if(u||f){var v=e.pageYOffset;a.header&&!S&&(S=document.querySelector(a.header)),b||(b=m(S));var w,E,A,I=u?n:l(f,b,parseInt("function"==typeof a.offset?a.offset(n,i):a.offset,10),a.clip),q=I-v,M=s(),F=0,L=d(q,a),x=function(t,o){var r=e.pageYOffset;if(t==o||r==o||(v<o&&e.innerHeight+r)>=M)return C.cancelScroll(!0),p(n,o,u),g("scrollStop",a,n,i),w=null,O=null,!0},H=function(t){w||(w=t),F+=t-w,E=F/parseInt(L,10),E=E>1?1:E,A=v+q*c(a,E),e.scrollTo(0,Math.floor(A)),x(A,I)||(O=e.requestAnimationFrame(H),w=t)};0===e.pageYOffset&&e.scrollTo(0,0),h(n,u,a),g("scrollStart",a,n,i),C.cancelScroll(!0),e.requestAnimationFrame(H)}};var I=function(t){if(!i()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&"closest"in t.target&&(E=t.target.closest(r))&&"a"===E.tagName.toLowerCase()&&!t.target.closest(y.ignore)&&E.hostname===e.location.hostname&&E.pathname===e.location.pathname&&/#/.test(E.href)){var n=u(a(E.hash)),o=y.topOnEmptyHash&&"#"===n?document.documentElement:document.querySelector(n);o=o||"#top"!==n?o:document.documentElement,o&&(t.preventDefault(),f(y),C.animateScroll(o,E))}},q=function(e){if(null!==history.state&&history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(y)){var t=history.state.anchor;t&&0!==t&&!(t=document.querySelector(u(a(history.state.anchor))))||C.animateScroll(t,null,{updateURL:!1})}},M=function(e){A||(A=setTimeout((function(){A=null,b=m(S)}),66))};return C.destroy=function(){y&&(document.removeEventListener("click",I,!1),e.removeEventListener("resize",M,!1),e.removeEventListener("popstate",q,!1),C.cancelScroll(),y=null,w=null,E=null,S=null,b=null,A=null,O=null)},C.init=function(i){if(!n())throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";C.destroy(),y=o(t,i||{}),S=y.header?document.querySelector(y.header):null,b=m(S),document.addEventListener("click",I,!1),S&&e.addEventListener("resize",M,!1),y.updateURL&&y.popstate&&e.addEventListener("popstate",q,!1)},C.init(v),C}}));
\ No newline at end of file
+window.Element&&!Element.prototype.closest&&(Element.prototype.closest=function(e){var t,n=(this.document||this.ownerDocument).querySelectorAll(e),o=this;do{for(t=n.length;--t>=0&&n.item(t)!==o;);}while(t<0&&(o=o.parentElement));return o}),(function(){function e(e,t){t=t||{bubbles:!1,cancelable:!1,detail:void 0};var n=document.createEvent("CustomEvent");return n.initCustomEvent(e,t.bubbles,t.cancelable,t.detail),n}if("function"==typeof window.CustomEvent)return!1;e.prototype=window.Event.prototype,window.CustomEvent=e})(),(function(){for(var e=0,t=["ms","moz","webkit","o"],n=0;n<t.length&&!window.requestAnimationFrame;++n)window.requestAnimationFrame=window[t[n]+"RequestAnimationFrame"],window.cancelAnimationFrame=window[t[n]+"CancelAnimationFrame"]||window[t[n]+"CancelRequestAnimationFrame"];window.requestAnimationFrame||(window.requestAnimationFrame=function(t,n){var o=(new Date).getTime(),i=Math.max(0,16-(o-e)),r=window.setTimeout((function(){t(o+i)}),i);return e=o+i,r}),window.cancelAnimationFrame||(window.cancelAnimationFrame=function(e){clearTimeout(e)})})(),(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,speedAsDuration:!1,durationMax:null,durationMin:null,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},n=function(){return"querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype},o=function(){var e={};return Array.prototype.forEach.call(arguments,(function(t){for(var n in t){if(!t.hasOwnProperty(n))return;e[n]=t[n]}})),e},i=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)},r=function(t){return parseInt(e.getComputedStyle(t).height,10)},a=function(e){var t;try{t=decodeURIComponent(e)}catch(n){t=e}return t},u=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,i=-1,r="",a=n.charCodeAt(0);++i<o;){if(0===(t=n.charCodeAt(i)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===i&&t>=48&&t<=57||1===i&&t>=48&&t<=57&&45===a?r+="\\"+t.toString(16)+" ":r+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(i):"\\"+n.charAt(i)}var u;try{u=decodeURIComponent("#"+r)}catch(e){u="#"+r}return u},c=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(t,n,o,i){var r=0;if(t.offsetParent)do{r+=t.offsetTop,t=t.offsetParent}while(t);return r=Math.max(r-n-o,0),i&&(r=Math.min(r,s()-e.innerHeight)),r},m=function(e){return e?r(e)+e.offsetTop:0},d=function(e,t){var n=t.speedAsDuration?t.speed:Math.abs(e/1e3*t.speed);return t.durationMax&&n>t.durationMax?t.durationMax:t.durationMin&&n<t.durationMin?t.durationMin:n},f=function(t){if(history.replaceState&&t.updateURL&&!history.state){var n=e.location.hash;n=n||e.pageYOffset,history.replaceState({smoothScroll:JSON.stringify(t),anchor:n||e.pageYOffset},document.title,n||e.location.href)}},h=function(e,t,n){t||history.pushState&&n.updateURL&&history.pushState({smoothScroll:JSON.stringify(n),anchor:e.id},document.title,e===document.documentElement?"#top":"#"+e.id)},p=function(t,n,o){0===t&&document.body.focus(),o||(t.focus(),document.activeElement!==t&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},g=function(t,n,o,i){if(n.emitEvents&&"function"==typeof e.CustomEvent){var r=new CustomEvent(t,{bubbles:!0,detail:{anchor:o,toggle:i}});document.dispatchEvent(r)}};return function(r,v){var y,w,E,S,b,A,O,C={};C.cancelScroll=function(e){cancelAnimationFrame(O),O=null,e||g("scrollCancel",y)},C.animateScroll=function(n,i,r){var a=o(y||t,r||{}),u="[object Number]"===Object.prototype.toString.call(n),f=u||!n.tagName?null:n;if(u||f){var v=e.pageYOffset;a.header&&!S&&(S=document.querySelector(a.header)),b||(b=m(S));var w,E,A,I=u?n:l(f,b,parseInt("function"==typeof a.offset?a.offset(n,i):a.offset,10),a.clip),q=I-v,M=s(),F=0,L=d(q,a),x=function(t,o){var r=e.pageYOffset;if(t==o||r==o||(v<o&&e.innerHeight+r)>=M)return C.cancelScroll(!0),p(n,o,u),g("scrollStop",a,n,i),w=null,O=null,!0},H=function(t){w||(w=t),F+=t-w,E=F/parseInt(L,10),E=E>1?1:E,A=v+q*c(a,E),e.scrollTo(0,Math.floor(A)),x(A,I)||(O=e.requestAnimationFrame(H),w=t)};0===e.pageYOffset&&e.scrollTo(0,0),h(n,u,a),g("scrollStart",a,n,i),C.cancelScroll(!0),e.requestAnimationFrame(H)}};var I=function(t){if(!i()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&"closest"in t.target&&(E=t.target.closest(r))&&"a"===E.tagName.toLowerCase()&&!t.target.closest(y.ignore)&&E.hostname===e.location.hostname&&E.pathname===e.location.pathname&&/#/.test(E.href)){var n=u(a(E.hash)),o=y.topOnEmptyHash&&"#"===n?document.documentElement:document.querySelector(n);o=o||"#top"!==n?o:document.documentElement,o&&(t.preventDefault(),f(y),C.animateScroll(o,E))}},q=function(e){if(null!==history.state&&history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(y)){var t=history.state.anchor;t&&0!==t&&!(t=document.querySelector(u(a(history.state.anchor))))||C.animateScroll(t,null,{updateURL:!1})}},M=function(e){A||(A=setTimeout((function(){A=null,b=m(S)}),66))};return C.destroy=function(){y&&(document.removeEventListener("click",I,!1),e.removeEventListener("resize",M,!1),e.removeEventListener("popstate",q,!1),C.cancelScroll(),y=null,w=null,E=null,S=null,b=null,A=null,O=null)},C.init=function(i){if(!n())throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";C.destroy(),y=o(t,i||{}),S=y.header?document.querySelector(y.header):null,b=m(S),document.addEventListener("click",I,!1),S&&e.addEventListener("resize",M,!1),y.updateURL&&y.popstate&&e.addEventListener("popstate",q,!1)},C.init(v),C}}));
\ No newline at end of file
diff --git a/src/js/smooth-scroll.js b/src/js/smooth-scroll.js
index da9ee2d..482e940 100755
--- a/src/js/smooth-scroll.js
+++ b/src/js/smooth-scroll.js
@@ -290,7 +290,7 @@
 	var setHistory = function (options) {
 
 		// Make sure this should run
-		if (!history.replaceState || history.state) return;
+		if (!history.replaceState || !options.updateURL || history.state) return;
 
 		// Get the hash to use
 		var hash = window.location.hash;

From 88ba8c3dad5700a9a823290d289d5f79d53d4ca1 Mon Sep 17 00:00:00 2001
From: cferdinandi <chris@gomakethings.com>
Date: Sat, 24 Nov 2018 00:13:21 -0500
Subject: [PATCH 21/51] v15.1.0 Fixed header height is now calculated at time
 scroll initiates

---
 dist/smooth-scroll.js                    | 29 +++---------------------
 dist/smooth-scroll.min.js                |  4 ++--
 dist/smooth-scroll.polyfills.js          | 29 +++---------------------
 dist/smooth-scroll.polyfills.min.js      |  4 ++--
 docs/dist/smooth-scroll.js               | 29 +++---------------------
 docs/dist/smooth-scroll.min.js           |  4 ++--
 docs/dist/smooth-scroll.polyfills.js     | 29 +++---------------------
 docs/dist/smooth-scroll.polyfills.min.js |  4 ++--
 package.json                             |  2 +-
 src/js/smooth-scroll.js                  | 27 ++--------------------
 10 files changed, 23 insertions(+), 138 deletions(-)

diff --git a/dist/smooth-scroll.js b/dist/smooth-scroll.js
index f400362..d20008d 100755
--- a/dist/smooth-scroll.js
+++ b/dist/smooth-scroll.js
@@ -1,5 +1,5 @@
 /*!
- * smooth-scroll v15.0.2: Animate scrolling to anchor links
+ * smooth-scroll v15.1.0: Animate scrolling to anchor links
  * (c) 2018 Chris Ferdinandi
  * MIT License
  * http://github.com/cferdinandi/smooth-scroll
@@ -399,7 +399,7 @@
 		//
 
 		var smoothScroll = {}; // Object for public APIs
-		var settings, anchor, toggle, fixedHeader, headerHeight, eventTimeout, animationInterval;
+		var settings, anchor, toggle, fixedHeader, eventTimeout, animationInterval;
 
 
 		//
@@ -436,10 +436,7 @@
 				// Get the fixed header if not already set
 				fixedHeader = document.querySelector(_settings.header);
 			}
-			if (!headerHeight) {
-				// Get the height of a fixed header if one exists and not already set
-				headerHeight = getHeaderHeight(fixedHeader);
-			}
+			var headerHeight = getHeaderHeight(fixedHeader);
 			var endLocation = isNum ? anchor : getEndLocation(anchorElem, headerHeight, parseInt((typeof _settings.offset === 'function' ? _settings.offset(anchor, toggle) : _settings.offset), 10), _settings.clip); // Location to scroll to
 			var distance = endLocation - startLocation; // distance to travel
 			var documentHeight = getDocumentHeight();
@@ -580,18 +577,6 @@
 
 		};
 
-		/**
-		 * On window scroll and resize, only run events at a rate of 15fps for better performance
-		 */
-		var resizeThrottler = function (event) {
-			if (!eventTimeout) {
-				eventTimeout = setTimeout((function() {
-					eventTimeout = null; // Reset timeout
-					headerHeight = getHeaderHeight(fixedHeader); // Get the height of a fixed header if one exists
-				}), 66);
-			}
-		};
-
 		/**
 		 * Destroy the current initialization.
 		 */
@@ -602,7 +587,6 @@
 
 			// Remove event listeners
 			document.removeEventListener('click', clickHandler, false);
-			window.removeEventListener('resize', resizeThrottler, false);
 			window.removeEventListener('popstate', popstateHandler, false);
 
 			// Cancel any scrolls-in-progress
@@ -613,7 +597,6 @@
 			anchor = null;
 			toggle = null;
 			fixedHeader = null;
-			headerHeight = null;
 			eventTimeout = null;
 			animationInterval = null;
 
@@ -634,16 +617,10 @@
 			// Selectors and variables
 			settings = extend(defaults, options || {}); // Merge user options with defaults
 			fixedHeader = settings.header ? document.querySelector(settings.header) : null; // Get the fixed header
-			headerHeight = getHeaderHeight(fixedHeader);
 
 			// When a toggle is clicked, run the click handler
 			document.addEventListener('click', clickHandler, false);
 
-			// If window is resized and there's a fixed header, recalculate its size
-			if (fixedHeader) {
-				window.addEventListener('resize', resizeThrottler, false);
-			}
-
 			// If updateURL and popState are enabled, listen for pop events
 			if (settings.updateURL && settings.popstate) {
 				window.addEventListener('popstate', popstateHandler, false);
diff --git a/dist/smooth-scroll.min.js b/dist/smooth-scroll.min.js
index 91fc58c..7bbf0c9 100755
--- a/dist/smooth-scroll.min.js
+++ b/dist/smooth-scroll.min.js
@@ -1,2 +1,2 @@
-/*! smooth-scroll v15.0.2 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
-!(function(t,e){"function"==typeof define&&define.amd?define([],(function(){return e(t)})):"object"==typeof exports?module.exports=e(t):t.SmoothScroll=e(t)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(t){"use strict";var e={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,speedAsDuration:!1,durationMax:null,durationMin:null,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},n=function(){return"querySelector"in document&&"addEventListener"in t&&"requestAnimationFrame"in t&&"closest"in t.Element.prototype},o=function(){var t={};return Array.prototype.forEach.call(arguments,(function(e){for(var n in e){if(!e.hasOwnProperty(n))return;t[n]=e[n]}})),t},r=function(e){return!!("matchMedia"in t&&t.matchMedia("(prefers-reduced-motion)").matches)},a=function(e){return parseInt(t.getComputedStyle(e).height,10)},i=function(t){var e;try{e=decodeURIComponent(t)}catch(n){e=t}return e},u=function(t){"#"===t.charAt(0)&&(t=t.substr(1));for(var e,n=String(t),o=n.length,r=-1,a="",i=n.charCodeAt(0);++r<o;){if(0===(e=n.charCodeAt(r)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");e>=1&&e<=31||127==e||0===r&&e>=48&&e<=57||1===r&&e>=48&&e<=57&&45===i?a+="\\"+e.toString(16)+" ":a+=e>=128||45===e||95===e||e>=48&&e<=57||e>=65&&e<=90||e>=97&&e<=122?n.charAt(r):"\\"+n.charAt(r)}var u;try{u=decodeURIComponent("#"+a)}catch(t){u="#"+a}return u},c=function(t,e){var n;return"easeInQuad"===t.easing&&(n=e*e),"easeOutQuad"===t.easing&&(n=e*(2-e)),"easeInOutQuad"===t.easing&&(n=e<.5?2*e*e:(4-2*e)*e-1),"easeInCubic"===t.easing&&(n=e*e*e),"easeOutCubic"===t.easing&&(n=--e*e*e+1),"easeInOutCubic"===t.easing&&(n=e<.5?4*e*e*e:(e-1)*(2*e-2)*(2*e-2)+1),"easeInQuart"===t.easing&&(n=e*e*e*e),"easeOutQuart"===t.easing&&(n=1- --e*e*e*e),"easeInOutQuart"===t.easing&&(n=e<.5?8*e*e*e*e:1-8*--e*e*e*e),"easeInQuint"===t.easing&&(n=e*e*e*e*e),"easeOutQuint"===t.easing&&(n=1+--e*e*e*e*e),"easeInOutQuint"===t.easing&&(n=e<.5?16*e*e*e*e*e:1+16*--e*e*e*e*e),t.customEasing&&(n=t.customEasing(e)),n||e},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(e,n,o,r){var a=0;if(e.offsetParent)do{a+=e.offsetTop,e=e.offsetParent}while(e);return a=Math.max(a-n-o,0),r&&(a=Math.min(a,s()-t.innerHeight)),a},d=function(t){return t?a(t)+t.offsetTop:0},f=function(t,e){var n=e.speedAsDuration?e.speed:Math.abs(t/1e3*e.speed);return e.durationMax&&n>e.durationMax?e.durationMax:e.durationMin&&n<e.durationMin?e.durationMin:n},m=function(e){if(history.replaceState&&e.updateURL&&!history.state){var n=t.location.hash;n=n||t.pageYOffset,history.replaceState({smoothScroll:JSON.stringify(e),anchor:n||t.pageYOffset},document.title,n||t.location.href)}},h=function(t,e,n){e||history.pushState&&n.updateURL&&history.pushState({smoothScroll:JSON.stringify(n),anchor:t.id},document.title,t===document.documentElement?"#top":"#"+t.id)},p=function(e,n,o){0===e&&document.body.focus(),o||(e.focus(),document.activeElement!==e&&(e.setAttribute("tabindex","-1"),e.focus(),e.style.outline="none"),t.scrollTo(0,n))},g=function(e,n,o,r){if(n.emitEvents&&"function"==typeof t.CustomEvent){var a=new CustomEvent(e,{bubbles:!0,detail:{anchor:o,toggle:r}});document.dispatchEvent(a)}};return function(a,y){var v,S,E,b,O,I,M,A={};A.cancelScroll=function(t){cancelAnimationFrame(M),M=null,t||g("scrollCancel",v)},A.animateScroll=function(n,r,a){var i=o(v||e,a||{}),u="[object Number]"===Object.prototype.toString.call(n),m=u||!n.tagName?null:n;if(u||m){var y=t.pageYOffset;i.header&&!b&&(b=document.querySelector(i.header)),O||(O=d(b));var S,E,I,C=u?n:l(m,O,parseInt("function"==typeof i.offset?i.offset(n,r):i.offset,10),i.clip),w=C-y,L=s(),H=0,q=f(w,i),x=function(e,o){var a=t.pageYOffset;if(e==o||a==o||(y<o&&t.innerHeight+a)>=L)return A.cancelScroll(!0),p(n,o,u),g("scrollStop",i,n,r),S=null,M=null,!0},Q=function(e){S||(S=e),H+=e-S,E=H/parseInt(q,10),E=E>1?1:E,I=y+w*c(i,E),t.scrollTo(0,Math.floor(I)),x(I,C)||(M=t.requestAnimationFrame(Q),S=e)};0===t.pageYOffset&&t.scrollTo(0,0),h(n,u,i),g("scrollStart",i,n,r),A.cancelScroll(!0),t.requestAnimationFrame(Q)}};var C=function(e){if(!r()&&0===e.button&&!e.metaKey&&!e.ctrlKey&&"closest"in e.target&&(E=e.target.closest(a))&&"a"===E.tagName.toLowerCase()&&!e.target.closest(v.ignore)&&E.hostname===t.location.hostname&&E.pathname===t.location.pathname&&/#/.test(E.href)){var n=u(i(E.hash)),o=v.topOnEmptyHash&&"#"===n?document.documentElement:document.querySelector(n);o=o||"#top"!==n?o:document.documentElement,o&&(e.preventDefault(),m(v),A.animateScroll(o,E))}},w=function(t){if(null!==history.state&&history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(v)){var e=history.state.anchor;e&&0!==e&&!(e=document.querySelector(u(i(history.state.anchor))))||A.animateScroll(e,null,{updateURL:!1})}},L=function(t){I||(I=setTimeout((function(){I=null,O=d(b)}),66))};return A.destroy=function(){v&&(document.removeEventListener("click",C,!1),t.removeEventListener("resize",L,!1),t.removeEventListener("popstate",w,!1),A.cancelScroll(),v=null,S=null,E=null,b=null,O=null,I=null,M=null)},A.init=function(r){if(!n())throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";A.destroy(),v=o(e,r||{}),b=v.header?document.querySelector(v.header):null,O=d(b),document.addEventListener("click",C,!1),b&&t.addEventListener("resize",L,!1),v.updateURL&&v.popstate&&t.addEventListener("popstate",w,!1)},A.init(y),A}}));
\ No newline at end of file
+/*! smooth-scroll v15.1.0 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
+!(function(t,e){"function"==typeof define&&define.amd?define([],(function(){return e(t)})):"object"==typeof exports?module.exports=e(t):t.SmoothScroll=e(t)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(t){"use strict";var e={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,speedAsDuration:!1,durationMax:null,durationMin:null,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},n=function(){return"querySelector"in document&&"addEventListener"in t&&"requestAnimationFrame"in t&&"closest"in t.Element.prototype},o=function(){var t={};return Array.prototype.forEach.call(arguments,(function(e){for(var n in e){if(!e.hasOwnProperty(n))return;t[n]=e[n]}})),t},r=function(e){return!!("matchMedia"in t&&t.matchMedia("(prefers-reduced-motion)").matches)},a=function(e){return parseInt(t.getComputedStyle(e).height,10)},i=function(t){var e;try{e=decodeURIComponent(t)}catch(n){e=t}return e},u=function(t){"#"===t.charAt(0)&&(t=t.substr(1));for(var e,n=String(t),o=n.length,r=-1,a="",i=n.charCodeAt(0);++r<o;){if(0===(e=n.charCodeAt(r)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");e>=1&&e<=31||127==e||0===r&&e>=48&&e<=57||1===r&&e>=48&&e<=57&&45===i?a+="\\"+e.toString(16)+" ":a+=e>=128||45===e||95===e||e>=48&&e<=57||e>=65&&e<=90||e>=97&&e<=122?n.charAt(r):"\\"+n.charAt(r)}var u;try{u=decodeURIComponent("#"+a)}catch(t){u="#"+a}return u},c=function(t,e){var n;return"easeInQuad"===t.easing&&(n=e*e),"easeOutQuad"===t.easing&&(n=e*(2-e)),"easeInOutQuad"===t.easing&&(n=e<.5?2*e*e:(4-2*e)*e-1),"easeInCubic"===t.easing&&(n=e*e*e),"easeOutCubic"===t.easing&&(n=--e*e*e+1),"easeInOutCubic"===t.easing&&(n=e<.5?4*e*e*e:(e-1)*(2*e-2)*(2*e-2)+1),"easeInQuart"===t.easing&&(n=e*e*e*e),"easeOutQuart"===t.easing&&(n=1- --e*e*e*e),"easeInOutQuart"===t.easing&&(n=e<.5?8*e*e*e*e:1-8*--e*e*e*e),"easeInQuint"===t.easing&&(n=e*e*e*e*e),"easeOutQuint"===t.easing&&(n=1+--e*e*e*e*e),"easeInOutQuint"===t.easing&&(n=e<.5?16*e*e*e*e*e:1+16*--e*e*e*e*e),t.customEasing&&(n=t.customEasing(e)),n||e},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(e,n,o,r){var a=0;if(e.offsetParent)do{a+=e.offsetTop,e=e.offsetParent}while(e);return a=Math.max(a-n-o,0),r&&(a=Math.min(a,s()-t.innerHeight)),a},d=function(t){return t?a(t)+t.offsetTop:0},f=function(t,e){var n=e.speedAsDuration?e.speed:Math.abs(t/1e3*e.speed);return e.durationMax&&n>e.durationMax?e.durationMax:e.durationMin&&n<e.durationMin?e.durationMin:n},m=function(e){if(history.replaceState&&e.updateURL&&!history.state){var n=t.location.hash;n=n||t.pageYOffset,history.replaceState({smoothScroll:JSON.stringify(e),anchor:n||t.pageYOffset},document.title,n||t.location.href)}},h=function(t,e,n){e||history.pushState&&n.updateURL&&history.pushState({smoothScroll:JSON.stringify(n),anchor:t.id},document.title,t===document.documentElement?"#top":"#"+t.id)},p=function(e,n,o){0===e&&document.body.focus(),o||(e.focus(),document.activeElement!==e&&(e.setAttribute("tabindex","-1"),e.focus(),e.style.outline="none"),t.scrollTo(0,n))},g=function(e,n,o,r){if(n.emitEvents&&"function"==typeof t.CustomEvent){var a=new CustomEvent(e,{bubbles:!0,detail:{anchor:o,toggle:r}});document.dispatchEvent(a)}};return function(a,y){var v,S,E,b,O,I,M={};M.cancelScroll=function(t){cancelAnimationFrame(I),I=null,t||g("scrollCancel",v)},M.animateScroll=function(n,r,a){var i=o(v||e,a||{}),u="[object Number]"===Object.prototype.toString.call(n),m=u||!n.tagName?null:n;if(u||m){var y=t.pageYOffset;i.header&&!b&&(b=document.querySelector(i.header));var S,E,O,A=d(b),C=u?n:l(m,A,parseInt("function"==typeof i.offset?i.offset(n,r):i.offset,10),i.clip),w=C-y,L=s(),H=0,q=f(w,i),x=function(e,o){var a=t.pageYOffset;if(e==o||a==o||(y<o&&t.innerHeight+a)>=L)return M.cancelScroll(!0),p(n,o,u),g("scrollStop",i,n,r),S=null,I=null,!0},Q=function(e){S||(S=e),H+=e-S,E=H/parseInt(q,10),E=E>1?1:E,O=y+w*c(i,E),t.scrollTo(0,Math.floor(O)),x(O,C)||(I=t.requestAnimationFrame(Q),S=e)};0===t.pageYOffset&&t.scrollTo(0,0),h(n,u,i),g("scrollStart",i,n,r),M.cancelScroll(!0),t.requestAnimationFrame(Q)}};var A=function(e){if(!r()&&0===e.button&&!e.metaKey&&!e.ctrlKey&&"closest"in e.target&&(E=e.target.closest(a))&&"a"===E.tagName.toLowerCase()&&!e.target.closest(v.ignore)&&E.hostname===t.location.hostname&&E.pathname===t.location.pathname&&/#/.test(E.href)){var n=u(i(E.hash)),o=v.topOnEmptyHash&&"#"===n?document.documentElement:document.querySelector(n);o=o||"#top"!==n?o:document.documentElement,o&&(e.preventDefault(),m(v),M.animateScroll(o,E))}},C=function(t){if(null!==history.state&&history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(v)){var e=history.state.anchor;e&&0!==e&&!(e=document.querySelector(u(i(history.state.anchor))))||M.animateScroll(e,null,{updateURL:!1})}};return M.destroy=function(){v&&(document.removeEventListener("click",A,!1),t.removeEventListener("popstate",C,!1),M.cancelScroll(),v=null,S=null,E=null,b=null,O=null,I=null)},M.init=function(r){if(!n())throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";M.destroy(),v=o(e,r||{}),b=v.header?document.querySelector(v.header):null,document.addEventListener("click",A,!1),v.updateURL&&v.popstate&&t.addEventListener("popstate",C,!1)},M.init(y),M}}));
\ No newline at end of file
diff --git a/dist/smooth-scroll.polyfills.js b/dist/smooth-scroll.polyfills.js
index fb793f8..fa8dfa4 100755
--- a/dist/smooth-scroll.polyfills.js
+++ b/dist/smooth-scroll.polyfills.js
@@ -1,5 +1,5 @@
 /*!
- * smooth-scroll v15.0.2: Animate scrolling to anchor links
+ * smooth-scroll v15.1.0: Animate scrolling to anchor links
  * (c) 2018 Chris Ferdinandi
  * MIT License
  * http://github.com/cferdinandi/smooth-scroll
@@ -469,7 +469,7 @@ if (window.Element && !Element.prototype.closest) {
 		//
 
 		var smoothScroll = {}; // Object for public APIs
-		var settings, anchor, toggle, fixedHeader, headerHeight, eventTimeout, animationInterval;
+		var settings, anchor, toggle, fixedHeader, eventTimeout, animationInterval;
 
 
 		//
@@ -506,10 +506,7 @@ if (window.Element && !Element.prototype.closest) {
 				// Get the fixed header if not already set
 				fixedHeader = document.querySelector(_settings.header);
 			}
-			if (!headerHeight) {
-				// Get the height of a fixed header if one exists and not already set
-				headerHeight = getHeaderHeight(fixedHeader);
-			}
+			var headerHeight = getHeaderHeight(fixedHeader);
 			var endLocation = isNum ? anchor : getEndLocation(anchorElem, headerHeight, parseInt((typeof _settings.offset === 'function' ? _settings.offset(anchor, toggle) : _settings.offset), 10), _settings.clip); // Location to scroll to
 			var distance = endLocation - startLocation; // distance to travel
 			var documentHeight = getDocumentHeight();
@@ -650,18 +647,6 @@ if (window.Element && !Element.prototype.closest) {
 
 		};
 
-		/**
-		 * On window scroll and resize, only run events at a rate of 15fps for better performance
-		 */
-		var resizeThrottler = function (event) {
-			if (!eventTimeout) {
-				eventTimeout = setTimeout((function() {
-					eventTimeout = null; // Reset timeout
-					headerHeight = getHeaderHeight(fixedHeader); // Get the height of a fixed header if one exists
-				}), 66);
-			}
-		};
-
 		/**
 		 * Destroy the current initialization.
 		 */
@@ -672,7 +657,6 @@ if (window.Element && !Element.prototype.closest) {
 
 			// Remove event listeners
 			document.removeEventListener('click', clickHandler, false);
-			window.removeEventListener('resize', resizeThrottler, false);
 			window.removeEventListener('popstate', popstateHandler, false);
 
 			// Cancel any scrolls-in-progress
@@ -683,7 +667,6 @@ if (window.Element && !Element.prototype.closest) {
 			anchor = null;
 			toggle = null;
 			fixedHeader = null;
-			headerHeight = null;
 			eventTimeout = null;
 			animationInterval = null;
 
@@ -704,16 +687,10 @@ if (window.Element && !Element.prototype.closest) {
 			// Selectors and variables
 			settings = extend(defaults, options || {}); // Merge user options with defaults
 			fixedHeader = settings.header ? document.querySelector(settings.header) : null; // Get the fixed header
-			headerHeight = getHeaderHeight(fixedHeader);
 
 			// When a toggle is clicked, run the click handler
 			document.addEventListener('click', clickHandler, false);
 
-			// If window is resized and there's a fixed header, recalculate its size
-			if (fixedHeader) {
-				window.addEventListener('resize', resizeThrottler, false);
-			}
-
 			// If updateURL and popState are enabled, listen for pop events
 			if (settings.updateURL && settings.popstate) {
 				window.addEventListener('popstate', popstateHandler, false);
diff --git a/dist/smooth-scroll.polyfills.min.js b/dist/smooth-scroll.polyfills.min.js
index e5af7f6..ba23c2a 100755
--- a/dist/smooth-scroll.polyfills.min.js
+++ b/dist/smooth-scroll.polyfills.min.js
@@ -1,2 +1,2 @@
-/*! smooth-scroll v15.0.2 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
-window.Element&&!Element.prototype.closest&&(Element.prototype.closest=function(e){var t,n=(this.document||this.ownerDocument).querySelectorAll(e),o=this;do{for(t=n.length;--t>=0&&n.item(t)!==o;);}while(t<0&&(o=o.parentElement));return o}),(function(){function e(e,t){t=t||{bubbles:!1,cancelable:!1,detail:void 0};var n=document.createEvent("CustomEvent");return n.initCustomEvent(e,t.bubbles,t.cancelable,t.detail),n}if("function"==typeof window.CustomEvent)return!1;e.prototype=window.Event.prototype,window.CustomEvent=e})(),(function(){for(var e=0,t=["ms","moz","webkit","o"],n=0;n<t.length&&!window.requestAnimationFrame;++n)window.requestAnimationFrame=window[t[n]+"RequestAnimationFrame"],window.cancelAnimationFrame=window[t[n]+"CancelAnimationFrame"]||window[t[n]+"CancelRequestAnimationFrame"];window.requestAnimationFrame||(window.requestAnimationFrame=function(t,n){var o=(new Date).getTime(),i=Math.max(0,16-(o-e)),r=window.setTimeout((function(){t(o+i)}),i);return e=o+i,r}),window.cancelAnimationFrame||(window.cancelAnimationFrame=function(e){clearTimeout(e)})})(),(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,speedAsDuration:!1,durationMax:null,durationMin:null,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},n=function(){return"querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype},o=function(){var e={};return Array.prototype.forEach.call(arguments,(function(t){for(var n in t){if(!t.hasOwnProperty(n))return;e[n]=t[n]}})),e},i=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)},r=function(t){return parseInt(e.getComputedStyle(t).height,10)},a=function(e){var t;try{t=decodeURIComponent(e)}catch(n){t=e}return t},u=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,i=-1,r="",a=n.charCodeAt(0);++i<o;){if(0===(t=n.charCodeAt(i)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===i&&t>=48&&t<=57||1===i&&t>=48&&t<=57&&45===a?r+="\\"+t.toString(16)+" ":r+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(i):"\\"+n.charAt(i)}var u;try{u=decodeURIComponent("#"+r)}catch(e){u="#"+r}return u},c=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(t,n,o,i){var r=0;if(t.offsetParent)do{r+=t.offsetTop,t=t.offsetParent}while(t);return r=Math.max(r-n-o,0),i&&(r=Math.min(r,s()-e.innerHeight)),r},m=function(e){return e?r(e)+e.offsetTop:0},d=function(e,t){var n=t.speedAsDuration?t.speed:Math.abs(e/1e3*t.speed);return t.durationMax&&n>t.durationMax?t.durationMax:t.durationMin&&n<t.durationMin?t.durationMin:n},f=function(t){if(history.replaceState&&t.updateURL&&!history.state){var n=e.location.hash;n=n||e.pageYOffset,history.replaceState({smoothScroll:JSON.stringify(t),anchor:n||e.pageYOffset},document.title,n||e.location.href)}},h=function(e,t,n){t||history.pushState&&n.updateURL&&history.pushState({smoothScroll:JSON.stringify(n),anchor:e.id},document.title,e===document.documentElement?"#top":"#"+e.id)},p=function(t,n,o){0===t&&document.body.focus(),o||(t.focus(),document.activeElement!==t&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},g=function(t,n,o,i){if(n.emitEvents&&"function"==typeof e.CustomEvent){var r=new CustomEvent(t,{bubbles:!0,detail:{anchor:o,toggle:i}});document.dispatchEvent(r)}};return function(r,v){var y,w,E,S,b,A,O,C={};C.cancelScroll=function(e){cancelAnimationFrame(O),O=null,e||g("scrollCancel",y)},C.animateScroll=function(n,i,r){var a=o(y||t,r||{}),u="[object Number]"===Object.prototype.toString.call(n),f=u||!n.tagName?null:n;if(u||f){var v=e.pageYOffset;a.header&&!S&&(S=document.querySelector(a.header)),b||(b=m(S));var w,E,A,I=u?n:l(f,b,parseInt("function"==typeof a.offset?a.offset(n,i):a.offset,10),a.clip),q=I-v,M=s(),F=0,L=d(q,a),x=function(t,o){var r=e.pageYOffset;if(t==o||r==o||(v<o&&e.innerHeight+r)>=M)return C.cancelScroll(!0),p(n,o,u),g("scrollStop",a,n,i),w=null,O=null,!0},H=function(t){w||(w=t),F+=t-w,E=F/parseInt(L,10),E=E>1?1:E,A=v+q*c(a,E),e.scrollTo(0,Math.floor(A)),x(A,I)||(O=e.requestAnimationFrame(H),w=t)};0===e.pageYOffset&&e.scrollTo(0,0),h(n,u,a),g("scrollStart",a,n,i),C.cancelScroll(!0),e.requestAnimationFrame(H)}};var I=function(t){if(!i()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&"closest"in t.target&&(E=t.target.closest(r))&&"a"===E.tagName.toLowerCase()&&!t.target.closest(y.ignore)&&E.hostname===e.location.hostname&&E.pathname===e.location.pathname&&/#/.test(E.href)){var n=u(a(E.hash)),o=y.topOnEmptyHash&&"#"===n?document.documentElement:document.querySelector(n);o=o||"#top"!==n?o:document.documentElement,o&&(t.preventDefault(),f(y),C.animateScroll(o,E))}},q=function(e){if(null!==history.state&&history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(y)){var t=history.state.anchor;t&&0!==t&&!(t=document.querySelector(u(a(history.state.anchor))))||C.animateScroll(t,null,{updateURL:!1})}},M=function(e){A||(A=setTimeout((function(){A=null,b=m(S)}),66))};return C.destroy=function(){y&&(document.removeEventListener("click",I,!1),e.removeEventListener("resize",M,!1),e.removeEventListener("popstate",q,!1),C.cancelScroll(),y=null,w=null,E=null,S=null,b=null,A=null,O=null)},C.init=function(i){if(!n())throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";C.destroy(),y=o(t,i||{}),S=y.header?document.querySelector(y.header):null,b=m(S),document.addEventListener("click",I,!1),S&&e.addEventListener("resize",M,!1),y.updateURL&&y.popstate&&e.addEventListener("popstate",q,!1)},C.init(v),C}}));
\ No newline at end of file
+/*! smooth-scroll v15.1.0 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
+window.Element&&!Element.prototype.closest&&(Element.prototype.closest=function(e){var t,n=(this.document||this.ownerDocument).querySelectorAll(e),o=this;do{for(t=n.length;--t>=0&&n.item(t)!==o;);}while(t<0&&(o=o.parentElement));return o}),(function(){function e(e,t){t=t||{bubbles:!1,cancelable:!1,detail:void 0};var n=document.createEvent("CustomEvent");return n.initCustomEvent(e,t.bubbles,t.cancelable,t.detail),n}if("function"==typeof window.CustomEvent)return!1;e.prototype=window.Event.prototype,window.CustomEvent=e})(),(function(){for(var e=0,t=["ms","moz","webkit","o"],n=0;n<t.length&&!window.requestAnimationFrame;++n)window.requestAnimationFrame=window[t[n]+"RequestAnimationFrame"],window.cancelAnimationFrame=window[t[n]+"CancelAnimationFrame"]||window[t[n]+"CancelRequestAnimationFrame"];window.requestAnimationFrame||(window.requestAnimationFrame=function(t,n){var o=(new Date).getTime(),a=Math.max(0,16-(o-e)),r=window.setTimeout((function(){t(o+a)}),a);return e=o+a,r}),window.cancelAnimationFrame||(window.cancelAnimationFrame=function(e){clearTimeout(e)})})(),(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,speedAsDuration:!1,durationMax:null,durationMin:null,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},n=function(){return"querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype},o=function(){var e={};return Array.prototype.forEach.call(arguments,(function(t){for(var n in t){if(!t.hasOwnProperty(n))return;e[n]=t[n]}})),e},a=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)},r=function(t){return parseInt(e.getComputedStyle(t).height,10)},i=function(e){var t;try{t=decodeURIComponent(e)}catch(n){t=e}return t},u=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,a=-1,r="",i=n.charCodeAt(0);++a<o;){if(0===(t=n.charCodeAt(a)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===a&&t>=48&&t<=57||1===a&&t>=48&&t<=57&&45===i?r+="\\"+t.toString(16)+" ":r+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(a):"\\"+n.charAt(a)}var u;try{u=decodeURIComponent("#"+r)}catch(e){u="#"+r}return u},c=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(t,n,o,a){var r=0;if(t.offsetParent)do{r+=t.offsetTop,t=t.offsetParent}while(t);return r=Math.max(r-n-o,0),a&&(r=Math.min(r,s()-e.innerHeight)),r},m=function(e){return e?r(e)+e.offsetTop:0},d=function(e,t){var n=t.speedAsDuration?t.speed:Math.abs(e/1e3*t.speed);return t.durationMax&&n>t.durationMax?t.durationMax:t.durationMin&&n<t.durationMin?t.durationMin:n},f=function(t){if(history.replaceState&&t.updateURL&&!history.state){var n=e.location.hash;n=n||e.pageYOffset,history.replaceState({smoothScroll:JSON.stringify(t),anchor:n||e.pageYOffset},document.title,n||e.location.href)}},h=function(e,t,n){t||history.pushState&&n.updateURL&&history.pushState({smoothScroll:JSON.stringify(n),anchor:e.id},document.title,e===document.documentElement?"#top":"#"+e.id)},p=function(t,n,o){0===t&&document.body.focus(),o||(t.focus(),document.activeElement!==t&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},g=function(t,n,o,a){if(n.emitEvents&&"function"==typeof e.CustomEvent){var r=new CustomEvent(t,{bubbles:!0,detail:{anchor:o,toggle:a}});document.dispatchEvent(r)}};return function(r,y){var v,w,E,S,b,A,O={};O.cancelScroll=function(e){cancelAnimationFrame(A),A=null,e||g("scrollCancel",v)},O.animateScroll=function(n,a,r){var i=o(v||t,r||{}),u="[object Number]"===Object.prototype.toString.call(n),f=u||!n.tagName?null:n;if(u||f){var y=e.pageYOffset;i.header&&!S&&(S=document.querySelector(i.header));var w,E,b,C=m(S),I=u?n:l(f,C,parseInt("function"==typeof i.offset?i.offset(n,a):i.offset,10),i.clip),q=I-y,M=s(),F=0,L=d(q,i),x=function(t,o){var r=e.pageYOffset;if(t==o||r==o||(y<o&&e.innerHeight+r)>=M)return O.cancelScroll(!0),p(n,o,u),g("scrollStop",i,n,a),w=null,A=null,!0},H=function(t){w||(w=t),F+=t-w,E=F/parseInt(L,10),E=E>1?1:E,b=y+q*c(i,E),e.scrollTo(0,Math.floor(b)),x(b,I)||(A=e.requestAnimationFrame(H),w=t)};0===e.pageYOffset&&e.scrollTo(0,0),h(n,u,i),g("scrollStart",i,n,a),O.cancelScroll(!0),e.requestAnimationFrame(H)}};var C=function(t){if(!a()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&"closest"in t.target&&(E=t.target.closest(r))&&"a"===E.tagName.toLowerCase()&&!t.target.closest(v.ignore)&&E.hostname===e.location.hostname&&E.pathname===e.location.pathname&&/#/.test(E.href)){var n=u(i(E.hash)),o=v.topOnEmptyHash&&"#"===n?document.documentElement:document.querySelector(n);o=o||"#top"!==n?o:document.documentElement,o&&(t.preventDefault(),f(v),O.animateScroll(o,E))}},I=function(e){if(null!==history.state&&history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(v)){var t=history.state.anchor;t&&0!==t&&!(t=document.querySelector(u(i(history.state.anchor))))||O.animateScroll(t,null,{updateURL:!1})}};return O.destroy=function(){v&&(document.removeEventListener("click",C,!1),e.removeEventListener("popstate",I,!1),O.cancelScroll(),v=null,w=null,E=null,S=null,b=null,A=null)},O.init=function(a){if(!n())throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";O.destroy(),v=o(t,a||{}),S=v.header?document.querySelector(v.header):null,document.addEventListener("click",C,!1),v.updateURL&&v.popstate&&e.addEventListener("popstate",I,!1)},O.init(y),O}}));
\ No newline at end of file
diff --git a/docs/dist/smooth-scroll.js b/docs/dist/smooth-scroll.js
index f400362..d20008d 100755
--- a/docs/dist/smooth-scroll.js
+++ b/docs/dist/smooth-scroll.js
@@ -1,5 +1,5 @@
 /*!
- * smooth-scroll v15.0.2: Animate scrolling to anchor links
+ * smooth-scroll v15.1.0: Animate scrolling to anchor links
  * (c) 2018 Chris Ferdinandi
  * MIT License
  * http://github.com/cferdinandi/smooth-scroll
@@ -399,7 +399,7 @@
 		//
 
 		var smoothScroll = {}; // Object for public APIs
-		var settings, anchor, toggle, fixedHeader, headerHeight, eventTimeout, animationInterval;
+		var settings, anchor, toggle, fixedHeader, eventTimeout, animationInterval;
 
 
 		//
@@ -436,10 +436,7 @@
 				// Get the fixed header if not already set
 				fixedHeader = document.querySelector(_settings.header);
 			}
-			if (!headerHeight) {
-				// Get the height of a fixed header if one exists and not already set
-				headerHeight = getHeaderHeight(fixedHeader);
-			}
+			var headerHeight = getHeaderHeight(fixedHeader);
 			var endLocation = isNum ? anchor : getEndLocation(anchorElem, headerHeight, parseInt((typeof _settings.offset === 'function' ? _settings.offset(anchor, toggle) : _settings.offset), 10), _settings.clip); // Location to scroll to
 			var distance = endLocation - startLocation; // distance to travel
 			var documentHeight = getDocumentHeight();
@@ -580,18 +577,6 @@
 
 		};
 
-		/**
-		 * On window scroll and resize, only run events at a rate of 15fps for better performance
-		 */
-		var resizeThrottler = function (event) {
-			if (!eventTimeout) {
-				eventTimeout = setTimeout((function() {
-					eventTimeout = null; // Reset timeout
-					headerHeight = getHeaderHeight(fixedHeader); // Get the height of a fixed header if one exists
-				}), 66);
-			}
-		};
-
 		/**
 		 * Destroy the current initialization.
 		 */
@@ -602,7 +587,6 @@
 
 			// Remove event listeners
 			document.removeEventListener('click', clickHandler, false);
-			window.removeEventListener('resize', resizeThrottler, false);
 			window.removeEventListener('popstate', popstateHandler, false);
 
 			// Cancel any scrolls-in-progress
@@ -613,7 +597,6 @@
 			anchor = null;
 			toggle = null;
 			fixedHeader = null;
-			headerHeight = null;
 			eventTimeout = null;
 			animationInterval = null;
 
@@ -634,16 +617,10 @@
 			// Selectors and variables
 			settings = extend(defaults, options || {}); // Merge user options with defaults
 			fixedHeader = settings.header ? document.querySelector(settings.header) : null; // Get the fixed header
-			headerHeight = getHeaderHeight(fixedHeader);
 
 			// When a toggle is clicked, run the click handler
 			document.addEventListener('click', clickHandler, false);
 
-			// If window is resized and there's a fixed header, recalculate its size
-			if (fixedHeader) {
-				window.addEventListener('resize', resizeThrottler, false);
-			}
-
 			// If updateURL and popState are enabled, listen for pop events
 			if (settings.updateURL && settings.popstate) {
 				window.addEventListener('popstate', popstateHandler, false);
diff --git a/docs/dist/smooth-scroll.min.js b/docs/dist/smooth-scroll.min.js
index 91fc58c..7bbf0c9 100755
--- a/docs/dist/smooth-scroll.min.js
+++ b/docs/dist/smooth-scroll.min.js
@@ -1,2 +1,2 @@
-/*! smooth-scroll v15.0.2 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
-!(function(t,e){"function"==typeof define&&define.amd?define([],(function(){return e(t)})):"object"==typeof exports?module.exports=e(t):t.SmoothScroll=e(t)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(t){"use strict";var e={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,speedAsDuration:!1,durationMax:null,durationMin:null,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},n=function(){return"querySelector"in document&&"addEventListener"in t&&"requestAnimationFrame"in t&&"closest"in t.Element.prototype},o=function(){var t={};return Array.prototype.forEach.call(arguments,(function(e){for(var n in e){if(!e.hasOwnProperty(n))return;t[n]=e[n]}})),t},r=function(e){return!!("matchMedia"in t&&t.matchMedia("(prefers-reduced-motion)").matches)},a=function(e){return parseInt(t.getComputedStyle(e).height,10)},i=function(t){var e;try{e=decodeURIComponent(t)}catch(n){e=t}return e},u=function(t){"#"===t.charAt(0)&&(t=t.substr(1));for(var e,n=String(t),o=n.length,r=-1,a="",i=n.charCodeAt(0);++r<o;){if(0===(e=n.charCodeAt(r)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");e>=1&&e<=31||127==e||0===r&&e>=48&&e<=57||1===r&&e>=48&&e<=57&&45===i?a+="\\"+e.toString(16)+" ":a+=e>=128||45===e||95===e||e>=48&&e<=57||e>=65&&e<=90||e>=97&&e<=122?n.charAt(r):"\\"+n.charAt(r)}var u;try{u=decodeURIComponent("#"+a)}catch(t){u="#"+a}return u},c=function(t,e){var n;return"easeInQuad"===t.easing&&(n=e*e),"easeOutQuad"===t.easing&&(n=e*(2-e)),"easeInOutQuad"===t.easing&&(n=e<.5?2*e*e:(4-2*e)*e-1),"easeInCubic"===t.easing&&(n=e*e*e),"easeOutCubic"===t.easing&&(n=--e*e*e+1),"easeInOutCubic"===t.easing&&(n=e<.5?4*e*e*e:(e-1)*(2*e-2)*(2*e-2)+1),"easeInQuart"===t.easing&&(n=e*e*e*e),"easeOutQuart"===t.easing&&(n=1- --e*e*e*e),"easeInOutQuart"===t.easing&&(n=e<.5?8*e*e*e*e:1-8*--e*e*e*e),"easeInQuint"===t.easing&&(n=e*e*e*e*e),"easeOutQuint"===t.easing&&(n=1+--e*e*e*e*e),"easeInOutQuint"===t.easing&&(n=e<.5?16*e*e*e*e*e:1+16*--e*e*e*e*e),t.customEasing&&(n=t.customEasing(e)),n||e},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(e,n,o,r){var a=0;if(e.offsetParent)do{a+=e.offsetTop,e=e.offsetParent}while(e);return a=Math.max(a-n-o,0),r&&(a=Math.min(a,s()-t.innerHeight)),a},d=function(t){return t?a(t)+t.offsetTop:0},f=function(t,e){var n=e.speedAsDuration?e.speed:Math.abs(t/1e3*e.speed);return e.durationMax&&n>e.durationMax?e.durationMax:e.durationMin&&n<e.durationMin?e.durationMin:n},m=function(e){if(history.replaceState&&e.updateURL&&!history.state){var n=t.location.hash;n=n||t.pageYOffset,history.replaceState({smoothScroll:JSON.stringify(e),anchor:n||t.pageYOffset},document.title,n||t.location.href)}},h=function(t,e,n){e||history.pushState&&n.updateURL&&history.pushState({smoothScroll:JSON.stringify(n),anchor:t.id},document.title,t===document.documentElement?"#top":"#"+t.id)},p=function(e,n,o){0===e&&document.body.focus(),o||(e.focus(),document.activeElement!==e&&(e.setAttribute("tabindex","-1"),e.focus(),e.style.outline="none"),t.scrollTo(0,n))},g=function(e,n,o,r){if(n.emitEvents&&"function"==typeof t.CustomEvent){var a=new CustomEvent(e,{bubbles:!0,detail:{anchor:o,toggle:r}});document.dispatchEvent(a)}};return function(a,y){var v,S,E,b,O,I,M,A={};A.cancelScroll=function(t){cancelAnimationFrame(M),M=null,t||g("scrollCancel",v)},A.animateScroll=function(n,r,a){var i=o(v||e,a||{}),u="[object Number]"===Object.prototype.toString.call(n),m=u||!n.tagName?null:n;if(u||m){var y=t.pageYOffset;i.header&&!b&&(b=document.querySelector(i.header)),O||(O=d(b));var S,E,I,C=u?n:l(m,O,parseInt("function"==typeof i.offset?i.offset(n,r):i.offset,10),i.clip),w=C-y,L=s(),H=0,q=f(w,i),x=function(e,o){var a=t.pageYOffset;if(e==o||a==o||(y<o&&t.innerHeight+a)>=L)return A.cancelScroll(!0),p(n,o,u),g("scrollStop",i,n,r),S=null,M=null,!0},Q=function(e){S||(S=e),H+=e-S,E=H/parseInt(q,10),E=E>1?1:E,I=y+w*c(i,E),t.scrollTo(0,Math.floor(I)),x(I,C)||(M=t.requestAnimationFrame(Q),S=e)};0===t.pageYOffset&&t.scrollTo(0,0),h(n,u,i),g("scrollStart",i,n,r),A.cancelScroll(!0),t.requestAnimationFrame(Q)}};var C=function(e){if(!r()&&0===e.button&&!e.metaKey&&!e.ctrlKey&&"closest"in e.target&&(E=e.target.closest(a))&&"a"===E.tagName.toLowerCase()&&!e.target.closest(v.ignore)&&E.hostname===t.location.hostname&&E.pathname===t.location.pathname&&/#/.test(E.href)){var n=u(i(E.hash)),o=v.topOnEmptyHash&&"#"===n?document.documentElement:document.querySelector(n);o=o||"#top"!==n?o:document.documentElement,o&&(e.preventDefault(),m(v),A.animateScroll(o,E))}},w=function(t){if(null!==history.state&&history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(v)){var e=history.state.anchor;e&&0!==e&&!(e=document.querySelector(u(i(history.state.anchor))))||A.animateScroll(e,null,{updateURL:!1})}},L=function(t){I||(I=setTimeout((function(){I=null,O=d(b)}),66))};return A.destroy=function(){v&&(document.removeEventListener("click",C,!1),t.removeEventListener("resize",L,!1),t.removeEventListener("popstate",w,!1),A.cancelScroll(),v=null,S=null,E=null,b=null,O=null,I=null,M=null)},A.init=function(r){if(!n())throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";A.destroy(),v=o(e,r||{}),b=v.header?document.querySelector(v.header):null,O=d(b),document.addEventListener("click",C,!1),b&&t.addEventListener("resize",L,!1),v.updateURL&&v.popstate&&t.addEventListener("popstate",w,!1)},A.init(y),A}}));
\ No newline at end of file
+/*! smooth-scroll v15.1.0 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
+!(function(t,e){"function"==typeof define&&define.amd?define([],(function(){return e(t)})):"object"==typeof exports?module.exports=e(t):t.SmoothScroll=e(t)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(t){"use strict";var e={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,speedAsDuration:!1,durationMax:null,durationMin:null,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},n=function(){return"querySelector"in document&&"addEventListener"in t&&"requestAnimationFrame"in t&&"closest"in t.Element.prototype},o=function(){var t={};return Array.prototype.forEach.call(arguments,(function(e){for(var n in e){if(!e.hasOwnProperty(n))return;t[n]=e[n]}})),t},r=function(e){return!!("matchMedia"in t&&t.matchMedia("(prefers-reduced-motion)").matches)},a=function(e){return parseInt(t.getComputedStyle(e).height,10)},i=function(t){var e;try{e=decodeURIComponent(t)}catch(n){e=t}return e},u=function(t){"#"===t.charAt(0)&&(t=t.substr(1));for(var e,n=String(t),o=n.length,r=-1,a="",i=n.charCodeAt(0);++r<o;){if(0===(e=n.charCodeAt(r)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");e>=1&&e<=31||127==e||0===r&&e>=48&&e<=57||1===r&&e>=48&&e<=57&&45===i?a+="\\"+e.toString(16)+" ":a+=e>=128||45===e||95===e||e>=48&&e<=57||e>=65&&e<=90||e>=97&&e<=122?n.charAt(r):"\\"+n.charAt(r)}var u;try{u=decodeURIComponent("#"+a)}catch(t){u="#"+a}return u},c=function(t,e){var n;return"easeInQuad"===t.easing&&(n=e*e),"easeOutQuad"===t.easing&&(n=e*(2-e)),"easeInOutQuad"===t.easing&&(n=e<.5?2*e*e:(4-2*e)*e-1),"easeInCubic"===t.easing&&(n=e*e*e),"easeOutCubic"===t.easing&&(n=--e*e*e+1),"easeInOutCubic"===t.easing&&(n=e<.5?4*e*e*e:(e-1)*(2*e-2)*(2*e-2)+1),"easeInQuart"===t.easing&&(n=e*e*e*e),"easeOutQuart"===t.easing&&(n=1- --e*e*e*e),"easeInOutQuart"===t.easing&&(n=e<.5?8*e*e*e*e:1-8*--e*e*e*e),"easeInQuint"===t.easing&&(n=e*e*e*e*e),"easeOutQuint"===t.easing&&(n=1+--e*e*e*e*e),"easeInOutQuint"===t.easing&&(n=e<.5?16*e*e*e*e*e:1+16*--e*e*e*e*e),t.customEasing&&(n=t.customEasing(e)),n||e},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(e,n,o,r){var a=0;if(e.offsetParent)do{a+=e.offsetTop,e=e.offsetParent}while(e);return a=Math.max(a-n-o,0),r&&(a=Math.min(a,s()-t.innerHeight)),a},d=function(t){return t?a(t)+t.offsetTop:0},f=function(t,e){var n=e.speedAsDuration?e.speed:Math.abs(t/1e3*e.speed);return e.durationMax&&n>e.durationMax?e.durationMax:e.durationMin&&n<e.durationMin?e.durationMin:n},m=function(e){if(history.replaceState&&e.updateURL&&!history.state){var n=t.location.hash;n=n||t.pageYOffset,history.replaceState({smoothScroll:JSON.stringify(e),anchor:n||t.pageYOffset},document.title,n||t.location.href)}},h=function(t,e,n){e||history.pushState&&n.updateURL&&history.pushState({smoothScroll:JSON.stringify(n),anchor:t.id},document.title,t===document.documentElement?"#top":"#"+t.id)},p=function(e,n,o){0===e&&document.body.focus(),o||(e.focus(),document.activeElement!==e&&(e.setAttribute("tabindex","-1"),e.focus(),e.style.outline="none"),t.scrollTo(0,n))},g=function(e,n,o,r){if(n.emitEvents&&"function"==typeof t.CustomEvent){var a=new CustomEvent(e,{bubbles:!0,detail:{anchor:o,toggle:r}});document.dispatchEvent(a)}};return function(a,y){var v,S,E,b,O,I,M={};M.cancelScroll=function(t){cancelAnimationFrame(I),I=null,t||g("scrollCancel",v)},M.animateScroll=function(n,r,a){var i=o(v||e,a||{}),u="[object Number]"===Object.prototype.toString.call(n),m=u||!n.tagName?null:n;if(u||m){var y=t.pageYOffset;i.header&&!b&&(b=document.querySelector(i.header));var S,E,O,A=d(b),C=u?n:l(m,A,parseInt("function"==typeof i.offset?i.offset(n,r):i.offset,10),i.clip),w=C-y,L=s(),H=0,q=f(w,i),x=function(e,o){var a=t.pageYOffset;if(e==o||a==o||(y<o&&t.innerHeight+a)>=L)return M.cancelScroll(!0),p(n,o,u),g("scrollStop",i,n,r),S=null,I=null,!0},Q=function(e){S||(S=e),H+=e-S,E=H/parseInt(q,10),E=E>1?1:E,O=y+w*c(i,E),t.scrollTo(0,Math.floor(O)),x(O,C)||(I=t.requestAnimationFrame(Q),S=e)};0===t.pageYOffset&&t.scrollTo(0,0),h(n,u,i),g("scrollStart",i,n,r),M.cancelScroll(!0),t.requestAnimationFrame(Q)}};var A=function(e){if(!r()&&0===e.button&&!e.metaKey&&!e.ctrlKey&&"closest"in e.target&&(E=e.target.closest(a))&&"a"===E.tagName.toLowerCase()&&!e.target.closest(v.ignore)&&E.hostname===t.location.hostname&&E.pathname===t.location.pathname&&/#/.test(E.href)){var n=u(i(E.hash)),o=v.topOnEmptyHash&&"#"===n?document.documentElement:document.querySelector(n);o=o||"#top"!==n?o:document.documentElement,o&&(e.preventDefault(),m(v),M.animateScroll(o,E))}},C=function(t){if(null!==history.state&&history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(v)){var e=history.state.anchor;e&&0!==e&&!(e=document.querySelector(u(i(history.state.anchor))))||M.animateScroll(e,null,{updateURL:!1})}};return M.destroy=function(){v&&(document.removeEventListener("click",A,!1),t.removeEventListener("popstate",C,!1),M.cancelScroll(),v=null,S=null,E=null,b=null,O=null,I=null)},M.init=function(r){if(!n())throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";M.destroy(),v=o(e,r||{}),b=v.header?document.querySelector(v.header):null,document.addEventListener("click",A,!1),v.updateURL&&v.popstate&&t.addEventListener("popstate",C,!1)},M.init(y),M}}));
\ No newline at end of file
diff --git a/docs/dist/smooth-scroll.polyfills.js b/docs/dist/smooth-scroll.polyfills.js
index fb793f8..fa8dfa4 100755
--- a/docs/dist/smooth-scroll.polyfills.js
+++ b/docs/dist/smooth-scroll.polyfills.js
@@ -1,5 +1,5 @@
 /*!
- * smooth-scroll v15.0.2: Animate scrolling to anchor links
+ * smooth-scroll v15.1.0: Animate scrolling to anchor links
  * (c) 2018 Chris Ferdinandi
  * MIT License
  * http://github.com/cferdinandi/smooth-scroll
@@ -469,7 +469,7 @@ if (window.Element && !Element.prototype.closest) {
 		//
 
 		var smoothScroll = {}; // Object for public APIs
-		var settings, anchor, toggle, fixedHeader, headerHeight, eventTimeout, animationInterval;
+		var settings, anchor, toggle, fixedHeader, eventTimeout, animationInterval;
 
 
 		//
@@ -506,10 +506,7 @@ if (window.Element && !Element.prototype.closest) {
 				// Get the fixed header if not already set
 				fixedHeader = document.querySelector(_settings.header);
 			}
-			if (!headerHeight) {
-				// Get the height of a fixed header if one exists and not already set
-				headerHeight = getHeaderHeight(fixedHeader);
-			}
+			var headerHeight = getHeaderHeight(fixedHeader);
 			var endLocation = isNum ? anchor : getEndLocation(anchorElem, headerHeight, parseInt((typeof _settings.offset === 'function' ? _settings.offset(anchor, toggle) : _settings.offset), 10), _settings.clip); // Location to scroll to
 			var distance = endLocation - startLocation; // distance to travel
 			var documentHeight = getDocumentHeight();
@@ -650,18 +647,6 @@ if (window.Element && !Element.prototype.closest) {
 
 		};
 
-		/**
-		 * On window scroll and resize, only run events at a rate of 15fps for better performance
-		 */
-		var resizeThrottler = function (event) {
-			if (!eventTimeout) {
-				eventTimeout = setTimeout((function() {
-					eventTimeout = null; // Reset timeout
-					headerHeight = getHeaderHeight(fixedHeader); // Get the height of a fixed header if one exists
-				}), 66);
-			}
-		};
-
 		/**
 		 * Destroy the current initialization.
 		 */
@@ -672,7 +657,6 @@ if (window.Element && !Element.prototype.closest) {
 
 			// Remove event listeners
 			document.removeEventListener('click', clickHandler, false);
-			window.removeEventListener('resize', resizeThrottler, false);
 			window.removeEventListener('popstate', popstateHandler, false);
 
 			// Cancel any scrolls-in-progress
@@ -683,7 +667,6 @@ if (window.Element && !Element.prototype.closest) {
 			anchor = null;
 			toggle = null;
 			fixedHeader = null;
-			headerHeight = null;
 			eventTimeout = null;
 			animationInterval = null;
 
@@ -704,16 +687,10 @@ if (window.Element && !Element.prototype.closest) {
 			// Selectors and variables
 			settings = extend(defaults, options || {}); // Merge user options with defaults
 			fixedHeader = settings.header ? document.querySelector(settings.header) : null; // Get the fixed header
-			headerHeight = getHeaderHeight(fixedHeader);
 
 			// When a toggle is clicked, run the click handler
 			document.addEventListener('click', clickHandler, false);
 
-			// If window is resized and there's a fixed header, recalculate its size
-			if (fixedHeader) {
-				window.addEventListener('resize', resizeThrottler, false);
-			}
-
 			// If updateURL and popState are enabled, listen for pop events
 			if (settings.updateURL && settings.popstate) {
 				window.addEventListener('popstate', popstateHandler, false);
diff --git a/docs/dist/smooth-scroll.polyfills.min.js b/docs/dist/smooth-scroll.polyfills.min.js
index e5af7f6..ba23c2a 100755
--- a/docs/dist/smooth-scroll.polyfills.min.js
+++ b/docs/dist/smooth-scroll.polyfills.min.js
@@ -1,2 +1,2 @@
-/*! smooth-scroll v15.0.2 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
-window.Element&&!Element.prototype.closest&&(Element.prototype.closest=function(e){var t,n=(this.document||this.ownerDocument).querySelectorAll(e),o=this;do{for(t=n.length;--t>=0&&n.item(t)!==o;);}while(t<0&&(o=o.parentElement));return o}),(function(){function e(e,t){t=t||{bubbles:!1,cancelable:!1,detail:void 0};var n=document.createEvent("CustomEvent");return n.initCustomEvent(e,t.bubbles,t.cancelable,t.detail),n}if("function"==typeof window.CustomEvent)return!1;e.prototype=window.Event.prototype,window.CustomEvent=e})(),(function(){for(var e=0,t=["ms","moz","webkit","o"],n=0;n<t.length&&!window.requestAnimationFrame;++n)window.requestAnimationFrame=window[t[n]+"RequestAnimationFrame"],window.cancelAnimationFrame=window[t[n]+"CancelAnimationFrame"]||window[t[n]+"CancelRequestAnimationFrame"];window.requestAnimationFrame||(window.requestAnimationFrame=function(t,n){var o=(new Date).getTime(),i=Math.max(0,16-(o-e)),r=window.setTimeout((function(){t(o+i)}),i);return e=o+i,r}),window.cancelAnimationFrame||(window.cancelAnimationFrame=function(e){clearTimeout(e)})})(),(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,speedAsDuration:!1,durationMax:null,durationMin:null,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},n=function(){return"querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype},o=function(){var e={};return Array.prototype.forEach.call(arguments,(function(t){for(var n in t){if(!t.hasOwnProperty(n))return;e[n]=t[n]}})),e},i=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)},r=function(t){return parseInt(e.getComputedStyle(t).height,10)},a=function(e){var t;try{t=decodeURIComponent(e)}catch(n){t=e}return t},u=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,i=-1,r="",a=n.charCodeAt(0);++i<o;){if(0===(t=n.charCodeAt(i)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===i&&t>=48&&t<=57||1===i&&t>=48&&t<=57&&45===a?r+="\\"+t.toString(16)+" ":r+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(i):"\\"+n.charAt(i)}var u;try{u=decodeURIComponent("#"+r)}catch(e){u="#"+r}return u},c=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(t,n,o,i){var r=0;if(t.offsetParent)do{r+=t.offsetTop,t=t.offsetParent}while(t);return r=Math.max(r-n-o,0),i&&(r=Math.min(r,s()-e.innerHeight)),r},m=function(e){return e?r(e)+e.offsetTop:0},d=function(e,t){var n=t.speedAsDuration?t.speed:Math.abs(e/1e3*t.speed);return t.durationMax&&n>t.durationMax?t.durationMax:t.durationMin&&n<t.durationMin?t.durationMin:n},f=function(t){if(history.replaceState&&t.updateURL&&!history.state){var n=e.location.hash;n=n||e.pageYOffset,history.replaceState({smoothScroll:JSON.stringify(t),anchor:n||e.pageYOffset},document.title,n||e.location.href)}},h=function(e,t,n){t||history.pushState&&n.updateURL&&history.pushState({smoothScroll:JSON.stringify(n),anchor:e.id},document.title,e===document.documentElement?"#top":"#"+e.id)},p=function(t,n,o){0===t&&document.body.focus(),o||(t.focus(),document.activeElement!==t&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},g=function(t,n,o,i){if(n.emitEvents&&"function"==typeof e.CustomEvent){var r=new CustomEvent(t,{bubbles:!0,detail:{anchor:o,toggle:i}});document.dispatchEvent(r)}};return function(r,v){var y,w,E,S,b,A,O,C={};C.cancelScroll=function(e){cancelAnimationFrame(O),O=null,e||g("scrollCancel",y)},C.animateScroll=function(n,i,r){var a=o(y||t,r||{}),u="[object Number]"===Object.prototype.toString.call(n),f=u||!n.tagName?null:n;if(u||f){var v=e.pageYOffset;a.header&&!S&&(S=document.querySelector(a.header)),b||(b=m(S));var w,E,A,I=u?n:l(f,b,parseInt("function"==typeof a.offset?a.offset(n,i):a.offset,10),a.clip),q=I-v,M=s(),F=0,L=d(q,a),x=function(t,o){var r=e.pageYOffset;if(t==o||r==o||(v<o&&e.innerHeight+r)>=M)return C.cancelScroll(!0),p(n,o,u),g("scrollStop",a,n,i),w=null,O=null,!0},H=function(t){w||(w=t),F+=t-w,E=F/parseInt(L,10),E=E>1?1:E,A=v+q*c(a,E),e.scrollTo(0,Math.floor(A)),x(A,I)||(O=e.requestAnimationFrame(H),w=t)};0===e.pageYOffset&&e.scrollTo(0,0),h(n,u,a),g("scrollStart",a,n,i),C.cancelScroll(!0),e.requestAnimationFrame(H)}};var I=function(t){if(!i()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&"closest"in t.target&&(E=t.target.closest(r))&&"a"===E.tagName.toLowerCase()&&!t.target.closest(y.ignore)&&E.hostname===e.location.hostname&&E.pathname===e.location.pathname&&/#/.test(E.href)){var n=u(a(E.hash)),o=y.topOnEmptyHash&&"#"===n?document.documentElement:document.querySelector(n);o=o||"#top"!==n?o:document.documentElement,o&&(t.preventDefault(),f(y),C.animateScroll(o,E))}},q=function(e){if(null!==history.state&&history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(y)){var t=history.state.anchor;t&&0!==t&&!(t=document.querySelector(u(a(history.state.anchor))))||C.animateScroll(t,null,{updateURL:!1})}},M=function(e){A||(A=setTimeout((function(){A=null,b=m(S)}),66))};return C.destroy=function(){y&&(document.removeEventListener("click",I,!1),e.removeEventListener("resize",M,!1),e.removeEventListener("popstate",q,!1),C.cancelScroll(),y=null,w=null,E=null,S=null,b=null,A=null,O=null)},C.init=function(i){if(!n())throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";C.destroy(),y=o(t,i||{}),S=y.header?document.querySelector(y.header):null,b=m(S),document.addEventListener("click",I,!1),S&&e.addEventListener("resize",M,!1),y.updateURL&&y.popstate&&e.addEventListener("popstate",q,!1)},C.init(v),C}}));
\ No newline at end of file
+/*! smooth-scroll v15.1.0 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
+window.Element&&!Element.prototype.closest&&(Element.prototype.closest=function(e){var t,n=(this.document||this.ownerDocument).querySelectorAll(e),o=this;do{for(t=n.length;--t>=0&&n.item(t)!==o;);}while(t<0&&(o=o.parentElement));return o}),(function(){function e(e,t){t=t||{bubbles:!1,cancelable:!1,detail:void 0};var n=document.createEvent("CustomEvent");return n.initCustomEvent(e,t.bubbles,t.cancelable,t.detail),n}if("function"==typeof window.CustomEvent)return!1;e.prototype=window.Event.prototype,window.CustomEvent=e})(),(function(){for(var e=0,t=["ms","moz","webkit","o"],n=0;n<t.length&&!window.requestAnimationFrame;++n)window.requestAnimationFrame=window[t[n]+"RequestAnimationFrame"],window.cancelAnimationFrame=window[t[n]+"CancelAnimationFrame"]||window[t[n]+"CancelRequestAnimationFrame"];window.requestAnimationFrame||(window.requestAnimationFrame=function(t,n){var o=(new Date).getTime(),a=Math.max(0,16-(o-e)),r=window.setTimeout((function(){t(o+a)}),a);return e=o+a,r}),window.cancelAnimationFrame||(window.cancelAnimationFrame=function(e){clearTimeout(e)})})(),(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,speedAsDuration:!1,durationMax:null,durationMin:null,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},n=function(){return"querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype},o=function(){var e={};return Array.prototype.forEach.call(arguments,(function(t){for(var n in t){if(!t.hasOwnProperty(n))return;e[n]=t[n]}})),e},a=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)},r=function(t){return parseInt(e.getComputedStyle(t).height,10)},i=function(e){var t;try{t=decodeURIComponent(e)}catch(n){t=e}return t},u=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,a=-1,r="",i=n.charCodeAt(0);++a<o;){if(0===(t=n.charCodeAt(a)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===a&&t>=48&&t<=57||1===a&&t>=48&&t<=57&&45===i?r+="\\"+t.toString(16)+" ":r+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(a):"\\"+n.charAt(a)}var u;try{u=decodeURIComponent("#"+r)}catch(e){u="#"+r}return u},c=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(t,n,o,a){var r=0;if(t.offsetParent)do{r+=t.offsetTop,t=t.offsetParent}while(t);return r=Math.max(r-n-o,0),a&&(r=Math.min(r,s()-e.innerHeight)),r},m=function(e){return e?r(e)+e.offsetTop:0},d=function(e,t){var n=t.speedAsDuration?t.speed:Math.abs(e/1e3*t.speed);return t.durationMax&&n>t.durationMax?t.durationMax:t.durationMin&&n<t.durationMin?t.durationMin:n},f=function(t){if(history.replaceState&&t.updateURL&&!history.state){var n=e.location.hash;n=n||e.pageYOffset,history.replaceState({smoothScroll:JSON.stringify(t),anchor:n||e.pageYOffset},document.title,n||e.location.href)}},h=function(e,t,n){t||history.pushState&&n.updateURL&&history.pushState({smoothScroll:JSON.stringify(n),anchor:e.id},document.title,e===document.documentElement?"#top":"#"+e.id)},p=function(t,n,o){0===t&&document.body.focus(),o||(t.focus(),document.activeElement!==t&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},g=function(t,n,o,a){if(n.emitEvents&&"function"==typeof e.CustomEvent){var r=new CustomEvent(t,{bubbles:!0,detail:{anchor:o,toggle:a}});document.dispatchEvent(r)}};return function(r,y){var v,w,E,S,b,A,O={};O.cancelScroll=function(e){cancelAnimationFrame(A),A=null,e||g("scrollCancel",v)},O.animateScroll=function(n,a,r){var i=o(v||t,r||{}),u="[object Number]"===Object.prototype.toString.call(n),f=u||!n.tagName?null:n;if(u||f){var y=e.pageYOffset;i.header&&!S&&(S=document.querySelector(i.header));var w,E,b,C=m(S),I=u?n:l(f,C,parseInt("function"==typeof i.offset?i.offset(n,a):i.offset,10),i.clip),q=I-y,M=s(),F=0,L=d(q,i),x=function(t,o){var r=e.pageYOffset;if(t==o||r==o||(y<o&&e.innerHeight+r)>=M)return O.cancelScroll(!0),p(n,o,u),g("scrollStop",i,n,a),w=null,A=null,!0},H=function(t){w||(w=t),F+=t-w,E=F/parseInt(L,10),E=E>1?1:E,b=y+q*c(i,E),e.scrollTo(0,Math.floor(b)),x(b,I)||(A=e.requestAnimationFrame(H),w=t)};0===e.pageYOffset&&e.scrollTo(0,0),h(n,u,i),g("scrollStart",i,n,a),O.cancelScroll(!0),e.requestAnimationFrame(H)}};var C=function(t){if(!a()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&"closest"in t.target&&(E=t.target.closest(r))&&"a"===E.tagName.toLowerCase()&&!t.target.closest(v.ignore)&&E.hostname===e.location.hostname&&E.pathname===e.location.pathname&&/#/.test(E.href)){var n=u(i(E.hash)),o=v.topOnEmptyHash&&"#"===n?document.documentElement:document.querySelector(n);o=o||"#top"!==n?o:document.documentElement,o&&(t.preventDefault(),f(v),O.animateScroll(o,E))}},I=function(e){if(null!==history.state&&history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(v)){var t=history.state.anchor;t&&0!==t&&!(t=document.querySelector(u(i(history.state.anchor))))||O.animateScroll(t,null,{updateURL:!1})}};return O.destroy=function(){v&&(document.removeEventListener("click",C,!1),e.removeEventListener("popstate",I,!1),O.cancelScroll(),v=null,w=null,E=null,S=null,b=null,A=null)},O.init=function(a){if(!n())throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";O.destroy(),v=o(t,a||{}),S=v.header?document.querySelector(v.header):null,document.addEventListener("click",C,!1),v.updateURL&&v.popstate&&e.addEventListener("popstate",I,!1)},O.init(y),O}}));
\ No newline at end of file
diff --git a/package.json b/package.json
index 214b334..fc93b37 100755
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
 	"name": "smooth-scroll",
-	"version": "15.0.2",
+	"version": "15.1.0",
 	"description": "Animate scrolling to anchor links",
 	"main": "./dist/smooth-scroll.polyfills.min.js",
 	"author": {
diff --git a/src/js/smooth-scroll.js b/src/js/smooth-scroll.js
index 482e940..59bc1bc 100755
--- a/src/js/smooth-scroll.js
+++ b/src/js/smooth-scroll.js
@@ -392,7 +392,7 @@
 		//
 
 		var smoothScroll = {}; // Object for public APIs
-		var settings, anchor, toggle, fixedHeader, headerHeight, eventTimeout, animationInterval;
+		var settings, anchor, toggle, fixedHeader, eventTimeout, animationInterval;
 
 
 		//
@@ -429,10 +429,7 @@
 				// Get the fixed header if not already set
 				fixedHeader = document.querySelector(_settings.header);
 			}
-			if (!headerHeight) {
-				// Get the height of a fixed header if one exists and not already set
-				headerHeight = getHeaderHeight(fixedHeader);
-			}
+			var headerHeight = getHeaderHeight(fixedHeader);
 			var endLocation = isNum ? anchor : getEndLocation(anchorElem, headerHeight, parseInt((typeof _settings.offset === 'function' ? _settings.offset(anchor, toggle) : _settings.offset), 10), _settings.clip); // Location to scroll to
 			var distance = endLocation - startLocation; // distance to travel
 			var documentHeight = getDocumentHeight();
@@ -573,18 +570,6 @@
 
 		};
 
-		/**
-		 * On window scroll and resize, only run events at a rate of 15fps for better performance
-		 */
-		var resizeThrottler = function (event) {
-			if (!eventTimeout) {
-				eventTimeout = setTimeout(function() {
-					eventTimeout = null; // Reset timeout
-					headerHeight = getHeaderHeight(fixedHeader); // Get the height of a fixed header if one exists
-				}, 66);
-			}
-		};
-
 		/**
 		 * Destroy the current initialization.
 		 */
@@ -595,7 +580,6 @@
 
 			// Remove event listeners
 			document.removeEventListener('click', clickHandler, false);
-			window.removeEventListener('resize', resizeThrottler, false);
 			window.removeEventListener('popstate', popstateHandler, false);
 
 			// Cancel any scrolls-in-progress
@@ -606,7 +590,6 @@
 			anchor = null;
 			toggle = null;
 			fixedHeader = null;
-			headerHeight = null;
 			eventTimeout = null;
 			animationInterval = null;
 
@@ -627,16 +610,10 @@
 			// Selectors and variables
 			settings = extend(defaults, options || {}); // Merge user options with defaults
 			fixedHeader = settings.header ? document.querySelector(settings.header) : null; // Get the fixed header
-			headerHeight = getHeaderHeight(fixedHeader);
 
 			// When a toggle is clicked, run the click handler
 			document.addEventListener('click', clickHandler, false);
 
-			// If window is resized and there's a fixed header, recalculate its size
-			if (fixedHeader) {
-				window.addEventListener('resize', resizeThrottler, false);
-			}
-
 			// If updateURL and popState are enabled, listen for pop events
 			if (settings.updateURL && settings.popstate) {
 				window.addEventListener('popstate', popstateHandler, false);

From 385f8ceba70feb88ef41c1e9b22bc10761903855 Mon Sep 17 00:00:00 2001
From: cferdinandi <chris@gomakethings.com>
Date: Thu, 29 Nov 2018 13:12:17 -0500
Subject: [PATCH 22/51] Removed unneeded dependencies. Also updated Gulp build

---
 dist/_closest.polyfill.js                   |   24 +
 dist/_closest.polyfill.min.js               |    2 +
 dist/_customEvent.polyfill.js               |   27 +
 dist/_customEvent.polyfill.min.js           |    2 +
 dist/_requestAnimationFrame.polyfill.js     |   41 +
 dist/_requestAnimationFrame.polyfill.min.js |    2 +
 dist/smooth-scroll.js                       |   30 +-
 dist/smooth-scroll.min.js                   |    4 +-
 dist/smooth-scroll.polyfills.js             |  719 --
 dist/smooth-scroll.polyfills.min.js         |    2 -
 docs/index.html                             |  116 +-
 docs/speed.html                             |   85 +-
 gulpfile.js                                 |  461 +-
 package-lock.json                           | 9037 +++++++++++++++++++
 package.json                                |   41 +-
 src/copy/index.html                         |  132 +
 src/copy/speed.html                         |   69 +
 src/docs/_templates/_footer.html            |   44 -
 src/docs/_templates/_header.html            |   32 -
 src/docs/index.md                           |   57 -
 src/docs/speed.md                           |   25 -
 src/js/smooth-scroll.js                     |   27 +-
 22 files changed, 9664 insertions(+), 1315 deletions(-)
 create mode 100644 dist/_closest.polyfill.js
 create mode 100644 dist/_closest.polyfill.min.js
 create mode 100644 dist/_customEvent.polyfill.js
 create mode 100644 dist/_customEvent.polyfill.min.js
 create mode 100644 dist/_requestAnimationFrame.polyfill.js
 create mode 100644 dist/_requestAnimationFrame.polyfill.min.js
 delete mode 100755 dist/smooth-scroll.polyfills.js
 delete mode 100755 dist/smooth-scroll.polyfills.min.js
 create mode 100644 package-lock.json
 create mode 100755 src/copy/index.html
 create mode 100644 src/copy/speed.html
 delete mode 100755 src/docs/_templates/_footer.html
 delete mode 100755 src/docs/_templates/_header.html
 delete mode 100755 src/docs/index.md
 delete mode 100644 src/docs/speed.md

diff --git a/dist/_closest.polyfill.js b/dist/_closest.polyfill.js
new file mode 100644
index 0000000..841a5fe
--- /dev/null
+++ b/dist/_closest.polyfill.js
@@ -0,0 +1,24 @@
+/*!
+ * smooth-scroll v15.1.1
+ * Animate scrolling to anchor links
+ * (c) 2018 Chris Ferdinandi
+ * MIT License
+ * http://github.com/cferdinandi/smooth-scroll
+ */
+
+/**
+ * closest() polyfill
+ * @link https://developer.mozilla.org/en-US/docs/Web/API/Element/closest#Polyfill
+ */
+if (window.Element && !Element.prototype.closest) {
+	Element.prototype.closest = function(s) {
+		var matches = (this.document || this.ownerDocument).querySelectorAll(s),
+			i,
+			el = this;
+		do {
+			i = matches.length;
+			while (--i >= 0 && matches.item(i) !== el) {}
+		} while ((i < 0) && (el = el.parentElement));
+		return el;
+	};
+}
diff --git a/dist/_closest.polyfill.min.js b/dist/_closest.polyfill.min.js
new file mode 100644
index 0000000..511658c
--- /dev/null
+++ b/dist/_closest.polyfill.min.js
@@ -0,0 +1,2 @@
+/*! smooth-scroll v15.1.1 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
+window.Element&&!Element.prototype.closest&&(Element.prototype.closest=function(e){var t,o=(this.document||this.ownerDocument).querySelectorAll(e),n=this;do{for(t=o.length;0<=--t&&o.item(t)!==n;);}while(t<0&&(n=n.parentElement));return n});
\ No newline at end of file
diff --git a/dist/_customEvent.polyfill.js b/dist/_customEvent.polyfill.js
new file mode 100644
index 0000000..9eab3ec
--- /dev/null
+++ b/dist/_customEvent.polyfill.js
@@ -0,0 +1,27 @@
+/*!
+ * smooth-scroll v15.1.1
+ * Animate scrolling to anchor links
+ * (c) 2018 Chris Ferdinandi
+ * MIT License
+ * http://github.com/cferdinandi/smooth-scroll
+ */
+
+/**
+ * CustomEvent() polyfill
+ * https://developer.mozilla.org/en-US/docs/Web/API/CustomEvent/CustomEvent#Polyfill
+ */
+(function () {
+
+	if (typeof window.CustomEvent === "function") return false;
+
+	function CustomEvent(event, params) {
+		params = params || { bubbles: false, cancelable: false, detail: undefined };
+		var evt = document.createEvent('CustomEvent');
+		evt.initCustomEvent(event, params.bubbles, params.cancelable, params.detail);
+		return evt;
+	}
+
+	CustomEvent.prototype = window.Event.prototype;
+
+	window.CustomEvent = CustomEvent;
+})();
\ No newline at end of file
diff --git a/dist/_customEvent.polyfill.min.js b/dist/_customEvent.polyfill.min.js
new file mode 100644
index 0000000..1146486
--- /dev/null
+++ b/dist/_customEvent.polyfill.min.js
@@ -0,0 +1,2 @@
+/*! smooth-scroll v15.1.1 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
+!(function(){if("function"==typeof window.CustomEvent)return;function t(t,e){e=e||{bubbles:!1,cancelable:!1,detail:void 0};var n=document.createEvent("CustomEvent");return n.initCustomEvent(t,e.bubbles,e.cancelable,e.detail),n}t.prototype=window.Event.prototype,window.CustomEvent=t})();
\ No newline at end of file
diff --git a/dist/_requestAnimationFrame.polyfill.js b/dist/_requestAnimationFrame.polyfill.js
new file mode 100644
index 0000000..bbfe770
--- /dev/null
+++ b/dist/_requestAnimationFrame.polyfill.js
@@ -0,0 +1,41 @@
+/*!
+ * smooth-scroll v15.1.1
+ * Animate scrolling to anchor links
+ * (c) 2018 Chris Ferdinandi
+ * MIT License
+ * http://github.com/cferdinandi/smooth-scroll
+ */
+
+/**
+ * requestAnimationFrame() polyfill
+ * By Erik Möller. Fixes from Paul Irish and Tino Zijdel.
+ * @link http://paulirish.com/2011/requestanimationframe-for-smart-animating/
+ * @link http://my.opera.com/emoller/blog/2011/12/20/requestanimationframe-for-smart-er-animating
+ * @license MIT
+ */
+(function() {
+	var lastTime = 0;
+	var vendors = ['ms', 'moz', 'webkit', 'o'];
+	for(var x = 0; x < vendors.length && !window.requestAnimationFrame; ++x) {
+		window.requestAnimationFrame = window[vendors[x]+'RequestAnimationFrame'];
+		window.cancelAnimationFrame = window[vendors[x]+'CancelAnimationFrame'] ||
+		                              window[vendors[x]+'CancelRequestAnimationFrame'];
+	}
+
+	if (!window.requestAnimationFrame) {
+		window.requestAnimationFrame = function(callback, element) {
+			var currTime = new Date().getTime();
+			var timeToCall = Math.max(0, 16 - (currTime - lastTime));
+			var id = window.setTimeout((function() { callback(currTime + timeToCall); }),
+				timeToCall);
+			lastTime = currTime + timeToCall;
+			return id;
+		};
+	}
+
+	if (!window.cancelAnimationFrame) {
+		window.cancelAnimationFrame = function(id) {
+			clearTimeout(id);
+		};
+	}
+}());
diff --git a/dist/_requestAnimationFrame.polyfill.min.js b/dist/_requestAnimationFrame.polyfill.min.js
new file mode 100644
index 0000000..2eb047f
--- /dev/null
+++ b/dist/_requestAnimationFrame.polyfill.min.js
@@ -0,0 +1,2 @@
+/*! smooth-scroll v15.1.1 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
+!(function(){for(var t=0,n=["ms","moz","webkit","o"],i=0;i<n.length&&!window.requestAnimationFrame;++i)window.requestAnimationFrame=window[n[i]+"RequestAnimationFrame"],window.cancelAnimationFrame=window[n[i]+"CancelAnimationFrame"]||window[n[i]+"CancelRequestAnimationFrame"];window.requestAnimationFrame||(window.requestAnimationFrame=function(n,i){var e=(new Date).getTime(),a=Math.max(0,16-(e-t)),o=window.setTimeout((function(){n(e+a)}),a);return t=e+a,o}),window.cancelAnimationFrame||(window.cancelAnimationFrame=function(n){clearTimeout(n)})})();
\ No newline at end of file
diff --git a/dist/smooth-scroll.js b/dist/smooth-scroll.js
index d20008d..7b77c2d 100755
--- a/dist/smooth-scroll.js
+++ b/dist/smooth-scroll.js
@@ -1,5 +1,6 @@
 /*!
- * smooth-scroll v15.1.0: Animate scrolling to anchor links
+ * smooth-scroll v15.1.1
+ * Animate scrolling to anchor links
  * (c) 2018 Chris Ferdinandi
  * MIT License
  * http://github.com/cferdinandi/smooth-scroll
@@ -105,21 +106,6 @@
 		return parseInt(window.getComputedStyle(elem).height, 10);
 	};
 
-	/**
-	 * Decode a URI, with error check
-	 * @param  {String} hash The URI to decode
-	 * @return {String}      A decoded URI (or the original string if an error is thrown)
-	 */
-	var decode = function (hash) {
-		var decoded;
-		try {
-			decoded = decodeURIComponent(hash);
-		} catch(e) {
-			decoded = hash;
-		}
-		return decoded;
-	};
-
 	/**
 	 * Escape special characters for use with querySelector
 	 * @author Mathias Bynens
@@ -196,13 +182,7 @@
 		}
 
 		// Return sanitized hash
-		var hash;
-		try {
-			hash = decodeURIComponent('#' + result);
-		} catch(e) {
-			hash = '#' + result;
-		}
-		return hash;
+		return '#' + result;
 
 	};
 
@@ -535,7 +515,7 @@
 			if (toggle.hostname !== window.location.hostname || toggle.pathname !== window.location.pathname || !/#/.test(toggle.href)) return;
 
 			// Get an escaped version of the hash
-			var hash = escapeCharacters(decode(toggle.hash));
+			var hash = escapeCharacters(toggle.hash);
 
 			// Get the anchored element
 			var anchor = settings.topOnEmptyHash && hash === '#' ? document.documentElement : document.querySelector(hash);
@@ -568,7 +548,7 @@
 			// Get the anchor
 			var anchor = history.state.anchor;
 			if (anchor && anchor !== 0) {
-				anchor = document.querySelector(escapeCharacters(decode(history.state.anchor)));
+				anchor = document.querySelector(escapeCharacters(history.state.anchor));
 				if (!anchor) return;
 			}
 
diff --git a/dist/smooth-scroll.min.js b/dist/smooth-scroll.min.js
index 7bbf0c9..b25a52b 100755
--- a/dist/smooth-scroll.min.js
+++ b/dist/smooth-scroll.min.js
@@ -1,2 +1,2 @@
-/*! smooth-scroll v15.1.0 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
-!(function(t,e){"function"==typeof define&&define.amd?define([],(function(){return e(t)})):"object"==typeof exports?module.exports=e(t):t.SmoothScroll=e(t)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(t){"use strict";var e={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,speedAsDuration:!1,durationMax:null,durationMin:null,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},n=function(){return"querySelector"in document&&"addEventListener"in t&&"requestAnimationFrame"in t&&"closest"in t.Element.prototype},o=function(){var t={};return Array.prototype.forEach.call(arguments,(function(e){for(var n in e){if(!e.hasOwnProperty(n))return;t[n]=e[n]}})),t},r=function(e){return!!("matchMedia"in t&&t.matchMedia("(prefers-reduced-motion)").matches)},a=function(e){return parseInt(t.getComputedStyle(e).height,10)},i=function(t){var e;try{e=decodeURIComponent(t)}catch(n){e=t}return e},u=function(t){"#"===t.charAt(0)&&(t=t.substr(1));for(var e,n=String(t),o=n.length,r=-1,a="",i=n.charCodeAt(0);++r<o;){if(0===(e=n.charCodeAt(r)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");e>=1&&e<=31||127==e||0===r&&e>=48&&e<=57||1===r&&e>=48&&e<=57&&45===i?a+="\\"+e.toString(16)+" ":a+=e>=128||45===e||95===e||e>=48&&e<=57||e>=65&&e<=90||e>=97&&e<=122?n.charAt(r):"\\"+n.charAt(r)}var u;try{u=decodeURIComponent("#"+a)}catch(t){u="#"+a}return u},c=function(t,e){var n;return"easeInQuad"===t.easing&&(n=e*e),"easeOutQuad"===t.easing&&(n=e*(2-e)),"easeInOutQuad"===t.easing&&(n=e<.5?2*e*e:(4-2*e)*e-1),"easeInCubic"===t.easing&&(n=e*e*e),"easeOutCubic"===t.easing&&(n=--e*e*e+1),"easeInOutCubic"===t.easing&&(n=e<.5?4*e*e*e:(e-1)*(2*e-2)*(2*e-2)+1),"easeInQuart"===t.easing&&(n=e*e*e*e),"easeOutQuart"===t.easing&&(n=1- --e*e*e*e),"easeInOutQuart"===t.easing&&(n=e<.5?8*e*e*e*e:1-8*--e*e*e*e),"easeInQuint"===t.easing&&(n=e*e*e*e*e),"easeOutQuint"===t.easing&&(n=1+--e*e*e*e*e),"easeInOutQuint"===t.easing&&(n=e<.5?16*e*e*e*e*e:1+16*--e*e*e*e*e),t.customEasing&&(n=t.customEasing(e)),n||e},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(e,n,o,r){var a=0;if(e.offsetParent)do{a+=e.offsetTop,e=e.offsetParent}while(e);return a=Math.max(a-n-o,0),r&&(a=Math.min(a,s()-t.innerHeight)),a},d=function(t){return t?a(t)+t.offsetTop:0},f=function(t,e){var n=e.speedAsDuration?e.speed:Math.abs(t/1e3*e.speed);return e.durationMax&&n>e.durationMax?e.durationMax:e.durationMin&&n<e.durationMin?e.durationMin:n},m=function(e){if(history.replaceState&&e.updateURL&&!history.state){var n=t.location.hash;n=n||t.pageYOffset,history.replaceState({smoothScroll:JSON.stringify(e),anchor:n||t.pageYOffset},document.title,n||t.location.href)}},h=function(t,e,n){e||history.pushState&&n.updateURL&&history.pushState({smoothScroll:JSON.stringify(n),anchor:t.id},document.title,t===document.documentElement?"#top":"#"+t.id)},p=function(e,n,o){0===e&&document.body.focus(),o||(e.focus(),document.activeElement!==e&&(e.setAttribute("tabindex","-1"),e.focus(),e.style.outline="none"),t.scrollTo(0,n))},g=function(e,n,o,r){if(n.emitEvents&&"function"==typeof t.CustomEvent){var a=new CustomEvent(e,{bubbles:!0,detail:{anchor:o,toggle:r}});document.dispatchEvent(a)}};return function(a,y){var v,S,E,b,O,I,M={};M.cancelScroll=function(t){cancelAnimationFrame(I),I=null,t||g("scrollCancel",v)},M.animateScroll=function(n,r,a){var i=o(v||e,a||{}),u="[object Number]"===Object.prototype.toString.call(n),m=u||!n.tagName?null:n;if(u||m){var y=t.pageYOffset;i.header&&!b&&(b=document.querySelector(i.header));var S,E,O,A=d(b),C=u?n:l(m,A,parseInt("function"==typeof i.offset?i.offset(n,r):i.offset,10),i.clip),w=C-y,L=s(),H=0,q=f(w,i),x=function(e,o){var a=t.pageYOffset;if(e==o||a==o||(y<o&&t.innerHeight+a)>=L)return M.cancelScroll(!0),p(n,o,u),g("scrollStop",i,n,r),S=null,I=null,!0},Q=function(e){S||(S=e),H+=e-S,E=H/parseInt(q,10),E=E>1?1:E,O=y+w*c(i,E),t.scrollTo(0,Math.floor(O)),x(O,C)||(I=t.requestAnimationFrame(Q),S=e)};0===t.pageYOffset&&t.scrollTo(0,0),h(n,u,i),g("scrollStart",i,n,r),M.cancelScroll(!0),t.requestAnimationFrame(Q)}};var A=function(e){if(!r()&&0===e.button&&!e.metaKey&&!e.ctrlKey&&"closest"in e.target&&(E=e.target.closest(a))&&"a"===E.tagName.toLowerCase()&&!e.target.closest(v.ignore)&&E.hostname===t.location.hostname&&E.pathname===t.location.pathname&&/#/.test(E.href)){var n=u(i(E.hash)),o=v.topOnEmptyHash&&"#"===n?document.documentElement:document.querySelector(n);o=o||"#top"!==n?o:document.documentElement,o&&(e.preventDefault(),m(v),M.animateScroll(o,E))}},C=function(t){if(null!==history.state&&history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(v)){var e=history.state.anchor;e&&0!==e&&!(e=document.querySelector(u(i(history.state.anchor))))||M.animateScroll(e,null,{updateURL:!1})}};return M.destroy=function(){v&&(document.removeEventListener("click",A,!1),t.removeEventListener("popstate",C,!1),M.cancelScroll(),v=null,S=null,E=null,b=null,O=null,I=null)},M.init=function(r){if(!n())throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";M.destroy(),v=o(e,r||{}),b=v.header?document.querySelector(v.header):null,document.addEventListener("click",A,!1),v.updateURL&&v.popstate&&t.addEventListener("popstate",C,!1)},M.init(y),M}}));
\ No newline at end of file
+/*! smooth-scroll v15.1.1 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
+!(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(C){"use strict";var L={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,speedAsDuration:!1,durationMax:null,durationMin:null,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},H=function(){var n={};return Array.prototype.forEach.call(arguments,(function(e){for(var t in e){if(!e.hasOwnProperty(t))return;n[t]=e[t]}})),n},r=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,a=-1,r="",i=n.charCodeAt(0);++a<o;){if(0===(t=n.charCodeAt(a)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");1<=t&&t<=31||127==t||0===a&&48<=t&&t<=57||1===a&&48<=t&&t<=57&&45===i?r+="\\"+t.toString(16)+" ":r+=128<=t||45===t||95===t||48<=t&&t<=57||65<=t&&t<=90||97<=t&&t<=122?n.charAt(a):"\\"+n.charAt(a)}return"#"+r},q=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},x=function(e){return e?(t=e,parseInt(C.getComputedStyle(t).height,10)+e.offsetTop):0;var t},Q=function(e,t,n,o){if(t.emitEvents&&"function"==typeof C.CustomEvent){var a=new CustomEvent(e,{bubbles:!0,detail:{anchor:n,toggle:o}});document.dispatchEvent(a)}};return function(o,e){var I,a,M,A,w={};w.cancelScroll=function(e){cancelAnimationFrame(A),A=null,e||Q("scrollCancel",I)},w.animateScroll=function(i,s,e){var c=H(I||L,e||{}),u="[object Number]"===Object.prototype.toString.call(i),t=u||!i.tagName?null:i;if(u||t){var l=C.pageYOffset;c.header&&!M&&(M=document.querySelector(c.header));var n,o,a,d,r,f,m,h,p=x(M),g=u?i:(function(e,t,n,o){var a=0;if(e.offsetParent)for(;a+=e.offsetTop,e=e.offsetParent;);return a=Math.max(a-t-n,0),o&&(a=Math.min(a,q()-C.innerHeight)),a})(t,p,parseInt("function"==typeof c.offset?c.offset(i,s):c.offset,10),c.clip),y=g-l,v=q(),S=0,E=(n=y,a=(o=c).speedAsDuration?o.speed:Math.abs(n/1e3*o.speed),o.durationMax&&a>o.durationMax?o.durationMax:o.durationMin&&a<o.durationMin?o.durationMin:a),b=function(e,t){var n,o,a,r=C.pageYOffset;if(e==t||r==t||(l<t&&C.innerHeight+r)>=v)return w.cancelScroll(!0),o=t,a=u,0===(n=i)&&document.body.focus(),a||(n.focus(),document.activeElement!==n&&(n.setAttribute("tabindex","-1"),n.focus(),n.style.outline="none"),C.scrollTo(0,o)),Q("scrollStop",c,i,s),!(A=d=null)},O=function(e){var t,n,o;d||(d=e),r=(S+=e-d)/parseInt(E,10),f=l+y*(n=r=1<r?1:r,"easeInQuad"===(t=c).easing&&(o=n*n),"easeOutQuad"===t.easing&&(o=n*(2-n)),"easeInOutQuad"===t.easing&&(o=n<.5?2*n*n:(4-2*n)*n-1),"easeInCubic"===t.easing&&(o=n*n*n),"easeOutCubic"===t.easing&&(o=--n*n*n+1),"easeInOutCubic"===t.easing&&(o=n<.5?4*n*n*n:(n-1)*(2*n-2)*(2*n-2)+1),"easeInQuart"===t.easing&&(o=n*n*n*n),"easeOutQuart"===t.easing&&(o=1- --n*n*n*n),"easeInOutQuart"===t.easing&&(o=n<.5?8*n*n*n*n:1-8*--n*n*n*n),"easeInQuint"===t.easing&&(o=n*n*n*n*n),"easeOutQuint"===t.easing&&(o=1+--n*n*n*n*n),"easeInOutQuint"===t.easing&&(o=n<.5?16*n*n*n*n*n:1+16*--n*n*n*n*n),t.customEasing&&(o=t.customEasing(n)),o||n),C.scrollTo(0,Math.floor(f)),b(f,g)||(A=C.requestAnimationFrame(O),d=e)};0===C.pageYOffset&&C.scrollTo(0,0),m=i,h=c,u||history.pushState&&h.updateURL&&history.pushState({smoothScroll:JSON.stringify(h),anchor:m.id},document.title,m===document.documentElement?"#top":"#"+m.id),Q("scrollStart",c,i,s),w.cancelScroll(!0),C.requestAnimationFrame(O)}};var t=function(e){if(!("matchMedia"in C&&C.matchMedia("(prefers-reduced-motion)").matches)&&0===e.button&&!e.metaKey&&!e.ctrlKey&&"closest"in e.target&&(a=e.target.closest(o))&&"a"===a.tagName.toLowerCase()&&!e.target.closest(I.ignore)&&a.hostname===C.location.hostname&&a.pathname===C.location.pathname&&/#/.test(a.href)){var t=r(a.hash),n=I.topOnEmptyHash&&"#"===t?document.documentElement:document.querySelector(t);(n=n||"#top"!==t?n:document.documentElement)&&(e.preventDefault(),(function(e){if(history.replaceState&&e.updateURL&&!history.state){var t=C.location.hash;t=t||C.pageYOffset,history.replaceState({smoothScroll:JSON.stringify(e),anchor:t||C.pageYOffset},document.title,t||C.location.href)}})(I),w.animateScroll(n,a))}},n=function(e){if(null!==history.state&&history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(I)){var t=history.state.anchor;t&&0!==t&&!(t=document.querySelector(r(history.state.anchor)))||w.animateScroll(t,null,{updateURL:!1})}};return w.destroy=function(){I&&(document.removeEventListener("click",t,!1),C.removeEventListener("popstate",n,!1),w.cancelScroll(),A=M=a=I=null)},w.init=function(e){if(!("querySelector"in document&&"addEventListener"in C&&"requestAnimationFrame"in C&&"closest"in C.Element.prototype))throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";w.destroy(),I=H(L,e||{}),M=I.header?document.querySelector(I.header):null,document.addEventListener("click",t,!1),I.updateURL&&I.popstate&&C.addEventListener("popstate",n,!1)},w.init(e),w}}));
\ No newline at end of file
diff --git a/dist/smooth-scroll.polyfills.js b/dist/smooth-scroll.polyfills.js
deleted file mode 100755
index fa8dfa4..0000000
--- a/dist/smooth-scroll.polyfills.js
+++ /dev/null
@@ -1,719 +0,0 @@
-/*!
- * smooth-scroll v15.1.0: Animate scrolling to anchor links
- * (c) 2018 Chris Ferdinandi
- * MIT License
- * http://github.com/cferdinandi/smooth-scroll
- */
-
-/**
- * closest() polyfill
- * @link https://developer.mozilla.org/en-US/docs/Web/API/Element/closest#Polyfill
- */
-if (window.Element && !Element.prototype.closest) {
-	Element.prototype.closest = function(s) {
-		var matches = (this.document || this.ownerDocument).querySelectorAll(s),
-			i,
-			el = this;
-		do {
-			i = matches.length;
-			while (--i >= 0 && matches.item(i) !== el) {}
-		} while ((i < 0) && (el = el.parentElement));
-		return el;
-	};
-}
-
-/**
- * CustomEvent() polyfill
- * https://developer.mozilla.org/en-US/docs/Web/API/CustomEvent/CustomEvent#Polyfill
- */
-(function () {
-
-	if (typeof window.CustomEvent === "function") return false;
-
-	function CustomEvent(event, params) {
-		params = params || { bubbles: false, cancelable: false, detail: undefined };
-		var evt = document.createEvent('CustomEvent');
-		evt.initCustomEvent(event, params.bubbles, params.cancelable, params.detail);
-		return evt;
-	}
-
-	CustomEvent.prototype = window.Event.prototype;
-
-	window.CustomEvent = CustomEvent;
-})();
-/**
- * requestAnimationFrame() polyfill
- * By Erik Möller. Fixes from Paul Irish and Tino Zijdel.
- * @link http://paulirish.com/2011/requestanimationframe-for-smart-animating/
- * @link http://my.opera.com/emoller/blog/2011/12/20/requestanimationframe-for-smart-er-animating
- * @license MIT
- */
-(function() {
-	var lastTime = 0;
-	var vendors = ['ms', 'moz', 'webkit', 'o'];
-	for(var x = 0; x < vendors.length && !window.requestAnimationFrame; ++x) {
-		window.requestAnimationFrame = window[vendors[x]+'RequestAnimationFrame'];
-		window.cancelAnimationFrame = window[vendors[x]+'CancelAnimationFrame'] ||
-		                              window[vendors[x]+'CancelRequestAnimationFrame'];
-	}
-
-	if (!window.requestAnimationFrame) {
-		window.requestAnimationFrame = function(callback, element) {
-			var currTime = new Date().getTime();
-			var timeToCall = Math.max(0, 16 - (currTime - lastTime));
-			var id = window.setTimeout((function() { callback(currTime + timeToCall); }),
-				timeToCall);
-			lastTime = currTime + timeToCall;
-			return id;
-		};
-	}
-
-	if (!window.cancelAnimationFrame) {
-		window.cancelAnimationFrame = function(id) {
-			clearTimeout(id);
-		};
-	}
-}());
-
-(function (root, factory) {
-	if (typeof define === 'function' && define.amd) {
-		define([], (function () {
-			return factory(root);
-		}));
-	} else if (typeof exports === 'object') {
-		module.exports = factory(root);
-	} else {
-		root.SmoothScroll = factory(root);
-	}
-})(typeof global !== 'undefined' ? global : typeof window !== 'undefined' ? window : this, (function (window) {
-
-	'use strict';
-
-	//
-	// Default settings
-	//
-
-	var defaults = {
-
-		// Selectors
-		ignore: '[data-scroll-ignore]',
-		header: null,
-		topOnEmptyHash: true,
-
-		// Speed & Duration
-		speed: 500,
-		speedAsDuration: false,
-		durationMax: null,
-		durationMin: null,
-		clip: true,
-		offset: 0,
-
-		// Easing
-		easing: 'easeInOutCubic',
-		customEasing: null,
-
-		// History
-		updateURL: true,
-		popstate: true,
-
-		// Custom Events
-		emitEvents: true
-
-	};
-
-
-	//
-	// Utility Methods
-	//
-
-	/**
-	 * Check if browser supports required methods
-	 * @return {Boolean} Returns true if all required methods are supported
-	 */
-	var supports = function () {
-		return (
-			'querySelector' in document &&
-			'addEventListener' in window &&
-			'requestAnimationFrame' in window &&
-			'closest' in window.Element.prototype
-		);
-	};
-
-	/**
-	 * Merge two or more objects together.
-	 * @param   {Object}   objects  The objects to merge together
-	 * @returns {Object}            Merged values of defaults and options
-	 */
-	var extend = function () {
-		var merged = {};
-		Array.prototype.forEach.call(arguments, (function (obj) {
-			for (var key in obj) {
-				if (!obj.hasOwnProperty(key)) return;
-				merged[key] = obj[key];
-			}
-		}));
-		return merged;
-	};
-
-	/**
-	 * Check to see if user prefers reduced motion
-	 * @param  {Object} settings Script settings
-	 */
-	var reduceMotion = function (settings) {
-		if ('matchMedia' in window && window.matchMedia('(prefers-reduced-motion)').matches) {
-			return true;
-		}
-		return false;
-	};
-
-	/**
-	 * Get the height of an element.
-	 * @param  {Node} elem The element to get the height of
-	 * @return {Number}    The element's height in pixels
-	 */
-	var getHeight = function (elem) {
-		return parseInt(window.getComputedStyle(elem).height, 10);
-	};
-
-	/**
-	 * Decode a URI, with error check
-	 * @param  {String} hash The URI to decode
-	 * @return {String}      A decoded URI (or the original string if an error is thrown)
-	 */
-	var decode = function (hash) {
-		var decoded;
-		try {
-			decoded = decodeURIComponent(hash);
-		} catch(e) {
-			decoded = hash;
-		}
-		return decoded;
-	};
-
-	/**
-	 * Escape special characters for use with querySelector
-	 * @author Mathias Bynens
-	 * @link https://github.com/mathiasbynens/CSS.escape
-	 * @param {String} id The anchor ID to escape
-	 */
-	var escapeCharacters = function (id) {
-
-		// Remove leading hash
-		if (id.charAt(0) === '#') {
-			id = id.substr(1);
-		}
-
-		var string = String(id);
-		var length = string.length;
-		var index = -1;
-		var codeUnit;
-		var result = '';
-		var firstCodeUnit = string.charCodeAt(0);
-		while (++index < length) {
-			codeUnit = string.charCodeAt(index);
-			// Note: there’s no need to special-case astral symbols, surrogate
-			// pairs, or lone surrogates.
-
-			// If the character is NULL (U+0000), then throw an
-			// `InvalidCharacterError` exception and terminate these steps.
-			if (codeUnit === 0x0000) {
-				throw new InvalidCharacterError(
-					'Invalid character: the input contains U+0000.'
-				);
-			}
-
-			if (
-				// If the character is in the range [\1-\1F] (U+0001 to U+001F) or is
-				// U+007F, […]
-				(codeUnit >= 0x0001 && codeUnit <= 0x001F) || codeUnit == 0x007F ||
-				// If the character is the first character and is in the range [0-9]
-				// (U+0030 to U+0039), […]
-				(index === 0 && codeUnit >= 0x0030 && codeUnit <= 0x0039) ||
-				// If the character is the second character and is in the range [0-9]
-				// (U+0030 to U+0039) and the first character is a `-` (U+002D), […]
-				(
-					index === 1 &&
-					codeUnit >= 0x0030 && codeUnit <= 0x0039 &&
-					firstCodeUnit === 0x002D
-				)
-			) {
-				// http://dev.w3.org/csswg/cssom/#escape-a-character-as-code-point
-				result += '\\' + codeUnit.toString(16) + ' ';
-				continue;
-			}
-
-			// If the character is not handled by one of the above rules and is
-			// greater than or equal to U+0080, is `-` (U+002D) or `_` (U+005F), or
-			// is in one of the ranges [0-9] (U+0030 to U+0039), [A-Z] (U+0041 to
-			// U+005A), or [a-z] (U+0061 to U+007A), […]
-			if (
-				codeUnit >= 0x0080 ||
-				codeUnit === 0x002D ||
-				codeUnit === 0x005F ||
-				codeUnit >= 0x0030 && codeUnit <= 0x0039 ||
-				codeUnit >= 0x0041 && codeUnit <= 0x005A ||
-				codeUnit >= 0x0061 && codeUnit <= 0x007A
-			) {
-				// the character itself
-				result += string.charAt(index);
-				continue;
-			}
-
-			// Otherwise, the escaped character.
-			// http://dev.w3.org/csswg/cssom/#escape-a-character
-			result += '\\' + string.charAt(index);
-
-		}
-
-		// Return sanitized hash
-		var hash;
-		try {
-			hash = decodeURIComponent('#' + result);
-		} catch(e) {
-			hash = '#' + result;
-		}
-		return hash;
-
-	};
-
-	/**
-	 * Calculate the easing pattern
-	 * @link https://gist.github.com/gre/1650294
-	 * @param {String} type Easing pattern
-	 * @param {Number} time Time animation should take to complete
-	 * @returns {Number}
-	 */
-	var easingPattern = function (settings, time) {
-		var pattern;
-
-		// Default Easing Patterns
-		if (settings.easing === 'easeInQuad') pattern = time * time; // accelerating from zero velocity
-		if (settings.easing === 'easeOutQuad') pattern = time * (2 - time); // decelerating to zero velocity
-		if (settings.easing === 'easeInOutQuad') pattern = time < 0.5 ? 2 * time * time : -1 + (4 - 2 * time) * time; // acceleration until halfway, then deceleration
-		if (settings.easing === 'easeInCubic') pattern = time * time * time; // accelerating from zero velocity
-		if (settings.easing === 'easeOutCubic') pattern = (--time) * time * time + 1; // decelerating to zero velocity
-		if (settings.easing === 'easeInOutCubic') pattern = time < 0.5 ? 4 * time * time * time : (time - 1) * (2 * time - 2) * (2 * time - 2) + 1; // acceleration until halfway, then deceleration
-		if (settings.easing === 'easeInQuart') pattern = time * time * time * time; // accelerating from zero velocity
-		if (settings.easing === 'easeOutQuart') pattern = 1 - (--time) * time * time * time; // decelerating to zero velocity
-		if (settings.easing === 'easeInOutQuart') pattern = time < 0.5 ? 8 * time * time * time * time : 1 - 8 * (--time) * time * time * time; // acceleration until halfway, then deceleration
-		if (settings.easing === 'easeInQuint') pattern = time * time * time * time * time; // accelerating from zero velocity
-		if (settings.easing === 'easeOutQuint') pattern = 1 + (--time) * time * time * time * time; // decelerating to zero velocity
-		if (settings.easing === 'easeInOutQuint') pattern = time < 0.5 ? 16 * time * time * time * time * time : 1 + 16 * (--time) * time * time * time * time; // acceleration until halfway, then deceleration
-
-		// Custom Easing Patterns
-		if (!!settings.customEasing) pattern = settings.customEasing(time);
-
-		return pattern || time; // no easing, no acceleration
-	};
-
-	/**
-	 * Determine the document's height
-	 * @returns {Number}
-	 */
-	var getDocumentHeight = function () {
-		return Math.max(
-			document.body.scrollHeight, document.documentElement.scrollHeight,
-			document.body.offsetHeight, document.documentElement.offsetHeight,
-			document.body.clientHeight, document.documentElement.clientHeight
-		);
-	};
-
-	/**
-	 * Calculate how far to scroll
-	 * Clip support added by robjtede - https://github.com/cferdinandi/smooth-scroll/issues/405
-	 * @param {Element} anchor       The anchor element to scroll to
-	 * @param {Number}  headerHeight Height of a fixed header, if any
-	 * @param {Number}  offset       Number of pixels by which to offset scroll
-	 * @param {Boolean} clip         If true, adjust scroll distance to prevent abrupt stops near the bottom of the page
-	 * @returns {Number}
-	 */
-	var getEndLocation = function (anchor, headerHeight, offset, clip) {
-		var location = 0;
-		if (anchor.offsetParent) {
-			do {
-				location += anchor.offsetTop;
-				anchor = anchor.offsetParent;
-			} while (anchor);
-		}
-		location = Math.max(location - headerHeight - offset, 0);
-		if (clip) {
-			location = Math.min(location, getDocumentHeight() - window.innerHeight);
-		}
- 		return location;
-	};
-
-	/**
-	 * Get the height of the fixed header
-	 * @param  {Node}   header The header
-	 * @return {Number}        The height of the header
-	 */
-	var getHeaderHeight = function (header) {
-		return !header ? 0 : (getHeight(header) + header.offsetTop);
-	};
-
-	/**
-	 * Calculate the speed to use for the animation
-	 * @param  {Number} distance The distance to travel
-	 * @param  {Object} settings The plugin settings
-	 * @return {Number}          How fast to animate
-	 */
-	var getSpeed = function (distance, settings) {
-		var speed = settings.speedAsDuration ? settings.speed : Math.abs(distance / 1000 * settings.speed);
-		if (settings.durationMax && speed > settings.durationMax) return settings.durationMax;
-		if (settings.durationMin && speed < settings.durationMin) return settings.durationMin;
-		return speed;
-	};
-
-	var setHistory = function (options) {
-
-		// Make sure this should run
-		if (!history.replaceState || !options.updateURL || history.state) return;
-
-		// Get the hash to use
-		var hash = window.location.hash;
-		hash = hash ? hash : window.pageYOffset;
-
-		// Set a default history
-		history.replaceState(
-			{
-				smoothScroll: JSON.stringify(options),
-				anchor: hash ? hash : window.pageYOffset
-			},
-			document.title,
-			hash ? hash : window.location.href
-		);
-
-	};
-
-	/**
-	 * Update the URL
-	 * @param  {Node}    anchor  The anchor that was scrolled to
-	 * @param  {Boolean} isNum   If true, anchor is a number
-	 * @param  {Object}  options Settings for Smooth Scroll
-	 */
-	var updateURL = function (anchor, isNum, options) {
-
-		// Bail if the anchor is a number
-		if (isNum) return;
-
-		// Verify that pushState is supported and the updateURL option is enabled
-		if (!history.pushState || !options.updateURL) return;
-
-		// Update URL
-		history.pushState(
-			{
-				smoothScroll: JSON.stringify(options),
-				anchor: anchor.id
-			},
-			document.title,
-			anchor === document.documentElement ? '#top' : '#' + anchor.id
-		);
-
-	};
-
-	/**
-	 * Bring the anchored element into focus
-	 * @param {Node}     anchor      The anchor element
-	 * @param {Number}   endLocation The end location to scroll to
-	 * @param {Boolean}  isNum       If true, scroll is to a position rather than an element
-	 */
-	var adjustFocus = function (anchor, endLocation, isNum) {
-
-		// Is scrolling to top of page, blur
-		if (anchor === 0) {
-			document.body.focus();
-		}
-
-		// Don't run if scrolling to a number on the page
-		if (isNum) return;
-
-		// Otherwise, bring anchor element into focus
-		anchor.focus();
-		if (document.activeElement !== anchor) {
-			anchor.setAttribute('tabindex', '-1');
-			anchor.focus();
-			anchor.style.outline = 'none';
-		}
-		window.scrollTo(0 , endLocation);
-
-	};
-
-	/**
-	 * Emit a custom event
-	 * @param  {String} type    The event type
-	 * @param  {Object} options The settings object
-	 * @param  {Node}   anchor  The anchor element
-	 * @param  {Node}   toggle  The toggle element
-	 */
-	var emitEvent = function (type, options, anchor, toggle) {
-		if (!options.emitEvents || typeof window.CustomEvent !== 'function') return;
-		var event = new CustomEvent(type, {
-			bubbles: true,
-			detail: {
-				anchor: anchor,
-				toggle: toggle
-			}
-		});
-		document.dispatchEvent(event);
-	};
-
-
-	//
-	// SmoothScroll Constructor
-	//
-
-	var SmoothScroll = function (selector, options) {
-
-		//
-		// Variables
-		//
-
-		var smoothScroll = {}; // Object for public APIs
-		var settings, anchor, toggle, fixedHeader, eventTimeout, animationInterval;
-
-
-		//
-		// Methods
-		//
-
-		/**
-		 * Cancel a scroll-in-progress
-		 */
-		smoothScroll.cancelScroll = function (noEvent) {
-			cancelAnimationFrame(animationInterval);
-			animationInterval = null;
-			if (noEvent) return;
-			emitEvent('scrollCancel', settings);
-		};
-
-		/**
-		 * Start/stop the scrolling animation
-		 * @param {Node|Number} anchor  The element or position to scroll to
-		 * @param {Element}     toggle  The element that toggled the scroll event
-		 * @param {Object}      options
-		 */
-		smoothScroll.animateScroll = function (anchor, toggle, options) {
-
-			// Local settings
-			var _settings = extend(settings || defaults, options || {}); // Merge user options with defaults
-
-			// Selectors and variables
-			var isNum = Object.prototype.toString.call(anchor) === '[object Number]' ? true : false;
-			var anchorElem = isNum || !anchor.tagName ? null : anchor;
-			if (!isNum && !anchorElem) return;
-			var startLocation = window.pageYOffset; // Current location on the page
-			if (_settings.header && !fixedHeader) {
-				// Get the fixed header if not already set
-				fixedHeader = document.querySelector(_settings.header);
-			}
-			var headerHeight = getHeaderHeight(fixedHeader);
-			var endLocation = isNum ? anchor : getEndLocation(anchorElem, headerHeight, parseInt((typeof _settings.offset === 'function' ? _settings.offset(anchor, toggle) : _settings.offset), 10), _settings.clip); // Location to scroll to
-			var distance = endLocation - startLocation; // distance to travel
-			var documentHeight = getDocumentHeight();
-			var timeLapsed = 0;
-			var speed = getSpeed(distance, _settings);
-			var start, percentage, position;
-
-			/**
-			 * Stop the scroll animation when it reaches its target (or the bottom/top of page)
-			 * @param {Number} position Current position on the page
-			 * @param {Number} endLocation Scroll to location
-			 * @param {Number} animationInterval How much to scroll on this loop
-			 */
-			var stopAnimateScroll = function (position, endLocation) {
-
-				// Get the current location
-				var currentLocation = window.pageYOffset;
-
-				// Check if the end location has been reached yet (or we've hit the end of the document)
-				if (position == endLocation || currentLocation == endLocation || ((startLocation < endLocation && window.innerHeight + currentLocation) >= documentHeight)) {
-
-					// Clear the animation timer
-					smoothScroll.cancelScroll(true);
-
-					// Bring the anchored element into focus
-					adjustFocus(anchor, endLocation, isNum);
-
-					// Emit a custom event
-					emitEvent('scrollStop', _settings, anchor, toggle);
-
-					// Reset start
-					start = null;
-					animationInterval = null;
-
-					return true;
-
-				}
-			};
-
-			/**
-			 * Loop scrolling animation
-			 */
-			var loopAnimateScroll = function (timestamp) {
-				if (!start) { start = timestamp; }
-				timeLapsed += timestamp - start;
-				percentage = (timeLapsed / parseInt(speed, 10));
-				percentage = (percentage > 1) ? 1 : percentage;
-				position = startLocation + (distance * easingPattern(_settings, percentage));
-				window.scrollTo(0, Math.floor(position));
-				if (!stopAnimateScroll(position, endLocation)) {
-					animationInterval = window.requestAnimationFrame(loopAnimateScroll);
-					start = timestamp;
-				}
-			};
-
-			/**
-			 * Reset position to fix weird iOS bug
-			 * @link https://github.com/cferdinandi/smooth-scroll/issues/45
-			 */
-			if (window.pageYOffset === 0) {
-				window.scrollTo(0, 0);
-			}
-
-			// Update the URL
-			updateURL(anchor, isNum, _settings);
-
-			// Emit a custom event
-			emitEvent('scrollStart', _settings, anchor, toggle);
-
-			// Start scrolling animation
-			smoothScroll.cancelScroll(true);
-			window.requestAnimationFrame(loopAnimateScroll);
-
-		};
-
-		/**
-		 * If smooth scroll element clicked, animate scroll
-		 */
-		var clickHandler = function (event) {
-
-			// Don't run if the user prefers reduced motion
-			if (reduceMotion(settings)) return;
-
-			// Don't run if right-click or command/control + click
-			if (event.button !== 0 || event.metaKey || event.ctrlKey) return;
-
-			// Check if event.target has closest() method
-			// By @totegi - https://github.com/cferdinandi/smooth-scroll/pull/401/
-			if(!('closest' in event.target))return;
-
-			// Check if a smooth scroll link was clicked
-			toggle = event.target.closest(selector);
-			if (!toggle || toggle.tagName.toLowerCase() !== 'a' || event.target.closest(settings.ignore)) return;
-
-			// Only run if link is an anchor and points to the current page
-			if (toggle.hostname !== window.location.hostname || toggle.pathname !== window.location.pathname || !/#/.test(toggle.href)) return;
-
-			// Get an escaped version of the hash
-			var hash = escapeCharacters(decode(toggle.hash));
-
-			// Get the anchored element
-			var anchor = settings.topOnEmptyHash && hash === '#' ? document.documentElement : document.querySelector(hash);
-			anchor = !anchor && hash === '#top' ? document.documentElement : anchor;
-
-			// If anchored element exists, scroll to it
-			if (!anchor) return;
-			event.preventDefault();
-			setHistory(settings);
-			smoothScroll.animateScroll(anchor, toggle);
-
-		};
-
-		/**
-		 * Animate scroll on popstate events
-		 */
-		var popstateHandler = function (event) {
-
-			// Stop if history.state doesn't exist (ex. if clicking on a broken anchor link).
-			// fixes `Cannot read property 'smoothScroll' of null` error getting thrown.
-			if (history.state === null) return;
-
-			// Only run if state is a popstate record for this instantiation
-			if (!history.state.smoothScroll || history.state.smoothScroll !== JSON.stringify(settings)) return;
-
-			// Only run if state includes an anchor
-
-			// if (!history.state.anchor && history.state.anchor !== 0) return;
-
-			// Get the anchor
-			var anchor = history.state.anchor;
-			if (anchor && anchor !== 0) {
-				anchor = document.querySelector(escapeCharacters(decode(history.state.anchor)));
-				if (!anchor) return;
-			}
-
-			// Animate scroll to anchor link
-			smoothScroll.animateScroll(anchor, null, {updateURL: false});
-
-		};
-
-		/**
-		 * Destroy the current initialization.
-		 */
-		smoothScroll.destroy = function () {
-
-			// If plugin isn't already initialized, stop
-			if (!settings) return;
-
-			// Remove event listeners
-			document.removeEventListener('click', clickHandler, false);
-			window.removeEventListener('popstate', popstateHandler, false);
-
-			// Cancel any scrolls-in-progress
-			smoothScroll.cancelScroll();
-
-			// Reset variables
-			settings = null;
-			anchor = null;
-			toggle = null;
-			fixedHeader = null;
-			eventTimeout = null;
-			animationInterval = null;
-
-		};
-
-		/**
-		 * Initialize Smooth Scroll
-		 * @param {Object} options User settings
-		 */
-		smoothScroll.init = function (options) {
-
-			// feature test
-			if (!supports()) throw 'Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.';
-
-			// Destroy any existing initializations
-			smoothScroll.destroy();
-
-			// Selectors and variables
-			settings = extend(defaults, options || {}); // Merge user options with defaults
-			fixedHeader = settings.header ? document.querySelector(settings.header) : null; // Get the fixed header
-
-			// When a toggle is clicked, run the click handler
-			document.addEventListener('click', clickHandler, false);
-
-			// If updateURL and popState are enabled, listen for pop events
-			if (settings.updateURL && settings.popstate) {
-				window.addEventListener('popstate', popstateHandler, false);
-			}
-
-		};
-
-
-		//
-		// Initialize plugin
-		//
-
-		smoothScroll.init(options);
-
-
-		//
-		// Public APIs
-		//
-
-		return smoothScroll;
-
-	};
-
-	return SmoothScroll;
-
-}));
diff --git a/dist/smooth-scroll.polyfills.min.js b/dist/smooth-scroll.polyfills.min.js
deleted file mode 100755
index ba23c2a..0000000
--- a/dist/smooth-scroll.polyfills.min.js
+++ /dev/null
@@ -1,2 +0,0 @@
-/*! smooth-scroll v15.1.0 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
-window.Element&&!Element.prototype.closest&&(Element.prototype.closest=function(e){var t,n=(this.document||this.ownerDocument).querySelectorAll(e),o=this;do{for(t=n.length;--t>=0&&n.item(t)!==o;);}while(t<0&&(o=o.parentElement));return o}),(function(){function e(e,t){t=t||{bubbles:!1,cancelable:!1,detail:void 0};var n=document.createEvent("CustomEvent");return n.initCustomEvent(e,t.bubbles,t.cancelable,t.detail),n}if("function"==typeof window.CustomEvent)return!1;e.prototype=window.Event.prototype,window.CustomEvent=e})(),(function(){for(var e=0,t=["ms","moz","webkit","o"],n=0;n<t.length&&!window.requestAnimationFrame;++n)window.requestAnimationFrame=window[t[n]+"RequestAnimationFrame"],window.cancelAnimationFrame=window[t[n]+"CancelAnimationFrame"]||window[t[n]+"CancelRequestAnimationFrame"];window.requestAnimationFrame||(window.requestAnimationFrame=function(t,n){var o=(new Date).getTime(),a=Math.max(0,16-(o-e)),r=window.setTimeout((function(){t(o+a)}),a);return e=o+a,r}),window.cancelAnimationFrame||(window.cancelAnimationFrame=function(e){clearTimeout(e)})})(),(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,speedAsDuration:!1,durationMax:null,durationMin:null,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},n=function(){return"querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype},o=function(){var e={};return Array.prototype.forEach.call(arguments,(function(t){for(var n in t){if(!t.hasOwnProperty(n))return;e[n]=t[n]}})),e},a=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)},r=function(t){return parseInt(e.getComputedStyle(t).height,10)},i=function(e){var t;try{t=decodeURIComponent(e)}catch(n){t=e}return t},u=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,a=-1,r="",i=n.charCodeAt(0);++a<o;){if(0===(t=n.charCodeAt(a)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===a&&t>=48&&t<=57||1===a&&t>=48&&t<=57&&45===i?r+="\\"+t.toString(16)+" ":r+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(a):"\\"+n.charAt(a)}var u;try{u=decodeURIComponent("#"+r)}catch(e){u="#"+r}return u},c=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(t,n,o,a){var r=0;if(t.offsetParent)do{r+=t.offsetTop,t=t.offsetParent}while(t);return r=Math.max(r-n-o,0),a&&(r=Math.min(r,s()-e.innerHeight)),r},m=function(e){return e?r(e)+e.offsetTop:0},d=function(e,t){var n=t.speedAsDuration?t.speed:Math.abs(e/1e3*t.speed);return t.durationMax&&n>t.durationMax?t.durationMax:t.durationMin&&n<t.durationMin?t.durationMin:n},f=function(t){if(history.replaceState&&t.updateURL&&!history.state){var n=e.location.hash;n=n||e.pageYOffset,history.replaceState({smoothScroll:JSON.stringify(t),anchor:n||e.pageYOffset},document.title,n||e.location.href)}},h=function(e,t,n){t||history.pushState&&n.updateURL&&history.pushState({smoothScroll:JSON.stringify(n),anchor:e.id},document.title,e===document.documentElement?"#top":"#"+e.id)},p=function(t,n,o){0===t&&document.body.focus(),o||(t.focus(),document.activeElement!==t&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},g=function(t,n,o,a){if(n.emitEvents&&"function"==typeof e.CustomEvent){var r=new CustomEvent(t,{bubbles:!0,detail:{anchor:o,toggle:a}});document.dispatchEvent(r)}};return function(r,y){var v,w,E,S,b,A,O={};O.cancelScroll=function(e){cancelAnimationFrame(A),A=null,e||g("scrollCancel",v)},O.animateScroll=function(n,a,r){var i=o(v||t,r||{}),u="[object Number]"===Object.prototype.toString.call(n),f=u||!n.tagName?null:n;if(u||f){var y=e.pageYOffset;i.header&&!S&&(S=document.querySelector(i.header));var w,E,b,C=m(S),I=u?n:l(f,C,parseInt("function"==typeof i.offset?i.offset(n,a):i.offset,10),i.clip),q=I-y,M=s(),F=0,L=d(q,i),x=function(t,o){var r=e.pageYOffset;if(t==o||r==o||(y<o&&e.innerHeight+r)>=M)return O.cancelScroll(!0),p(n,o,u),g("scrollStop",i,n,a),w=null,A=null,!0},H=function(t){w||(w=t),F+=t-w,E=F/parseInt(L,10),E=E>1?1:E,b=y+q*c(i,E),e.scrollTo(0,Math.floor(b)),x(b,I)||(A=e.requestAnimationFrame(H),w=t)};0===e.pageYOffset&&e.scrollTo(0,0),h(n,u,i),g("scrollStart",i,n,a),O.cancelScroll(!0),e.requestAnimationFrame(H)}};var C=function(t){if(!a()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&"closest"in t.target&&(E=t.target.closest(r))&&"a"===E.tagName.toLowerCase()&&!t.target.closest(v.ignore)&&E.hostname===e.location.hostname&&E.pathname===e.location.pathname&&/#/.test(E.href)){var n=u(i(E.hash)),o=v.topOnEmptyHash&&"#"===n?document.documentElement:document.querySelector(n);o=o||"#top"!==n?o:document.documentElement,o&&(t.preventDefault(),f(v),O.animateScroll(o,E))}},I=function(e){if(null!==history.state&&history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(v)){var t=history.state.anchor;t&&0!==t&&!(t=document.querySelector(u(i(history.state.anchor))))||O.animateScroll(t,null,{updateURL:!1})}};return O.destroy=function(){v&&(document.removeEventListener("click",C,!1),e.removeEventListener("popstate",I,!1),O.cancelScroll(),v=null,w=null,E=null,S=null,b=null,A=null)},O.init=function(a){if(!n())throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";O.destroy(),v=o(t,a||{}),S=v.header?document.querySelector(v.header):null,document.addEventListener("click",C,!1),v.updateURL&&v.popstate&&e.addEventListener("popstate",I,!1)},O.init(y),O}}));
\ No newline at end of file
diff --git a/docs/index.html b/docs/index.html
index 9670549..f0d477a 100755
--- a/docs/index.html
+++ b/docs/index.html
@@ -30,68 +30,68 @@ <h1>Smooth Scroll</h1>
 			</nav>
 
 			<section>
-<p>
-    <strong>Linear</strong><br>
-    <a data-easing="linear" href="#bazinga">Linear (no other options)</a><br>
-</p>
-
-<p>
-    <strong>Ease-In</strong><br>
-    <a data-easing="easeInQuad" href="#bazinga">Quad</a><br>
-    <a data-easing="easeInCubic" href="#bazinga">Cubic</a><br>
-    <a data-easing="easeInQuart" href="#bazinga">Quart</a><br>
-    <a data-easing="easeInQuint" href="#bazinga">Quint</a>
-</p>
-
-<p>
-    <strong>Ease-In-Out</strong><br>
-    <a data-easing="easeInOutQuad" href="#bazinga">Quad</a><br>
-    <a data-easing="easeInOutCubic" href="#bazinga">Cubic</a><br>
-    <a data-easing="easeInOutQuart" href="#bazinga">Quart</a><br>
-    <a data-easing="easeInOutQuint" href="#bazinga">Quint</a>
-</p>
-
-<p>
-    <strong>Ease-Out</strong><br>
-    <a data-easing="easeOutQuad" href="#bazinga">Quad</a><br>
-    <a data-easing="easeOutCubic" href="#bazinga">Cubic</a><br>
-    <a data-easing="easeOutQuart" href="#bazinga">Quart</a><br>
-    <a data-easing="easeOutQuint" href="#bazinga">Quint</a>
-</p>
-
-<p>
-    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
-    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
-    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.
-</p>
-
-<p>
-    <strong>Non-ASCII Characters</strong><br>
-    <a href="#中文">中文</a>
-</p>
-
-<p>
-    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
-    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
-    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.
-</p>
-
-<p id="中文">中文</p>
-
-<p id="bazinga"><a href="#1@#%^-bottom">Bazinga!</a></p>
-
-<p>
-    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
-    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
-    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.
-</p>
-
-<p id="1@#%^-bottom"><a href="#top">Back to the top</a></p>
+				<p>
+				    <strong>Linear</strong><br>
+				    <a data-easing="linear" href="#bazinga">Linear (no other options)</a><br>
+				</p>
+
+				<p>
+				    <strong>Ease-In</strong><br>
+				    <a data-easing="easeInQuad" href="#bazinga">Quad</a><br>
+				    <a data-easing="easeInCubic" href="#bazinga">Cubic</a><br>
+				    <a data-easing="easeInQuart" href="#bazinga">Quart</a><br>
+				    <a data-easing="easeInQuint" href="#bazinga">Quint</a>
+				</p>
+
+				<p>
+				    <strong>Ease-In-Out</strong><br>
+				    <a data-easing="easeInOutQuad" href="#bazinga">Quad</a><br>
+				    <a data-easing="easeInOutCubic" href="#bazinga">Cubic</a><br>
+				    <a data-easing="easeInOutQuart" href="#bazinga">Quart</a><br>
+				    <a data-easing="easeInOutQuint" href="#bazinga">Quint</a>
+				</p>
+
+				<p>
+				    <strong>Ease-Out</strong><br>
+				    <a data-easing="easeOutQuad" href="#bazinga">Quad</a><br>
+				    <a data-easing="easeOutCubic" href="#bazinga">Cubic</a><br>
+				    <a data-easing="easeOutQuart" href="#bazinga">Quart</a><br>
+				    <a data-easing="easeOutQuint" href="#bazinga">Quint</a>
+				</p>
+
+				<p>
+				    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
+				    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
+				    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.
+				</p>
+
+				<p>
+				    <strong>Non-ASCII Characters</strong><br>
+				    <a href="#中文">中文</a>
+				</p>
+
+				<p>
+				    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
+				    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
+				    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.
+				</p>
+
+				<p id="中文">中文</p>
+
+				<p id="bazinga"><a href="#1@#%^-bottom">Bazinga!</a></p>
+
+				<p>
+				    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
+				    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
+				    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.
+				</p>
+
+				<p id="1@#%^-bottom"><a href="#top">Back to the top</a></p>
 			</section>
 		</main>
 
 		<!-- Javascript -->
-		<script src="http://github.com/dist/smooth-scroll.polyfills.js"></script>
+		<script src="http://github.com/dist/smooth-scroll.polyfills.js"></script>
 		<script>
 
 			// Instantiate Scrolls
diff --git a/docs/speed.html b/docs/speed.html
index b3b6adf..3138aea 100644
--- a/docs/speed.html
+++ b/docs/speed.html
@@ -30,69 +30,38 @@ <h1>Smooth Scroll</h1>
 			</nav>
 
 			<section>
-<p>
-    <a href="#bazinga">Click Me</a><br>
-    <a href="#1@#%^-bottom">Or me</a>
-</p>
-
-<p>
-    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
-    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
-    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.
-</p>
-
-<p id="bazinga"><a href="#1@#%^-bottom">Bazinga!</a></p>
-
-<p>
-    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
-    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
-    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.
-    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
-    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
-    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.
-</p>
-
-<p id="1@#%^-bottom"><a href="#top">Back to the top</a></p>
-
-<p>.<br>.<br>.<br>.<br>.</p>
+				<p>
+				    <a href="#bazinga">Click Me</a><br>
+				    <a href="#1@#%^-bottom">Or me</a>
+				</p>
+
+				<p>
+				    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
+				    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
+				    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.
+				</p>
+
+				<p id="bazinga"><a href="#1@#%^-bottom">Bazinga!</a></p>
+
+				<p>
+				    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
+				    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
+				    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.
+				    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
+				    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
+				    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.
+				</p>
+
+				<p id="1@#%^-bottom"><a href="#top">Back to the top</a></p>
+
+				<p>.<br>.<br>.<br>.<br>.</p>
 			</section>
 		</main>
 
 		<!-- Javascript -->
-		<script src="http://github.com/dist/smooth-scroll.polyfills.js"></script>
+		<script src="http://github.com/dist/smooth-scroll.polyfills.js"></script>
 		<script>
-
-			// Instantiate Scrolls
-			var scroll = new SmoothScroll('a[href*="#"]:not([data-easing])');
-
-			if (document.querySelector('[data-easing]')) {
-				var linear = new SmoothScroll('[data-easing="linear"]', {easing: 'linear'});
-
-				var easeInQuad = new SmoothScroll('[data-easing="easeInQuad"]', {easing: 'easeInQuad'});
-				var easeInCubic = new SmoothScroll('[data-easing="easeInCubic"]', {easing: 'easeInCubic'});
-				var easeInQuart = new SmoothScroll('[data-easing="easeInQuart"]', {easing: 'easeInQuart'});
-				var easeInQuint = new SmoothScroll('[data-easing="easeInQuint"]', {easing: 'easeInQuint'});
-
-				var easeInOutQuad = new SmoothScroll('[data-easing="easeInOutQuad"]', {easing: 'easeInOutQuad'});
-				var easeInOutCubic = new SmoothScroll('[data-easing="easeInOutCubic"]', {easing: 'easeInOutCubic'});
-				var easeInOutQuart = new SmoothScroll('[data-easing="easeInOutQuart"]', {easing: 'easeInOutQuart'});
-				var easeInOutQuint = new SmoothScroll('[data-easing="easeInOutQuint"]', {easing: 'easeInOutQuint'});
-
-				var easeOutQuad = new SmoothScroll('[data-easing="easeOutQuad"]', {easing: 'easeOutQuad'});
-				var easeOutCubic = new SmoothScroll('[data-easing="easeOutCubic"]', {easing: 'easeOutCubic'});
-				var easeOutQuart = new SmoothScroll('[data-easing="easeOutQuart"]', {easing: 'easeOutQuart'});
-				var easeOutQuint = new SmoothScroll('[data-easing="easeOutQuint"]', {easing: 'easeOutQuint'});
-			}
-
-			// // Log scroll events
-			// var logScrollEvent = function (event) {
-			// 	console.log('type:', event.type);
-			// 	console.log('anchor:', event.detail.anchor);
-			// 	console.log('toggle:', event.detail.toggle);
-			// };
-			// document.addEventListener('scrollStart', logScrollEvent, false);
-			// document.addEventListener('scrollStop', logScrollEvent, false);
-			// document.addEventListener('scrollCancel', logScrollEvent, false);
+			var scroll = new SmoothScroll('a[href*="#"]');
 		</script>
 
 
diff --git a/gulpfile.js b/gulpfile.js
index e8eb065..b203512 100755
--- a/gulpfile.js
+++ b/gulpfile.js
@@ -1,71 +1,29 @@
 /**
  * Settings
+ * Turn on/off build features
  */
 
 var settings = {
-	scripts: true,		// Turn on/off script tasks
-	polyfills: true,	// Turn on/off polyfill tasks
-	styles: false,		// Turn on/off style tasks
-	svgs: false,		// Turn on/off SVG tasks
-	images: false,		// Turn on/off image tasks
-	static: false,		// Turn on/off static file copying
-	docs: true,			// Turn on/off documentation generation
-	deploy: true,		// Turn on/off all deployment tasks
-	cacheBust: false,	// Turn on/off cache busting (adds a version number to minified files)
+	clean: true,
+	scripts: true,
+	polyfills: true,
+	styles: false,
+	svgs: false,
+	copy: true,
+	reload: true
 };
 
 
-/**
- * Gulp Packages
- */
-
-// General
-var gulp = require('gulp');
-var fs = require('fs');
-var del = require('del');
-var exec = require('child_process').exec;
-var lazypipe = require('lazypipe');
-var plumber = require('gulp-plumber');
-var flatten = require('gulp-flatten');
-var tap = require('gulp-tap');
-var rename = require('gulp-rename');
-var header = require('gulp-header');
-var footer = require('gulp-footer');
-var watch = require('gulp-watch');
-var livereload = require('gulp-livereload');
-var package = require('./package.json');
-
-// Scripts
-var jshint = settings.scripts ? require('gulp-jshint') : null;
-var stylish = settings.scripts ? require('jshint-stylish') : null;
-var concat = settings.scripts ? require('gulp-concat') : null;
-var uglify = settings.scripts ? require('gulp-uglify') : null;
-var optimizejs = settings.scripts ? require('gulp-optimize-js') : null;
-
-// Styles
-var sass = settings.styles ? require('gulp-sass') : null;
-var prefix = settings.styles ? require('gulp-autoprefixer') : null;
-var minify = settings.styles ? require('gulp-cssnano') : null;
-
-// SVGs
-var svgmin = settings.svgs ? require('gulp-svgmin') : null;
-var svgstore = settings.svgs ? require('gulp-svgstore') : null;
-
-// Docs
-var markdown = settings.docs ? require('gulp-markdown') : null;
-var fileinclude = settings.docs ? require('gulp-file-include') : null;
-
-
 /**
  * Paths to project folders
  */
 
 var paths = {
-	input: 'src/**/*',
+	input: 'src/',
 	output: 'dist/',
 	scripts: {
 		input: 'src/js/*',
-		polyfills: '!src/js/*.polyfill.js',
+		polyfills: '.polyfill.js',
 		output: 'dist/'
 	},
 	styles: {
@@ -73,23 +31,14 @@ var paths = {
 		output: 'dist/css/'
 	},
 	svgs: {
-		input: 'src/svg/*',
+		input: 'src/svg/*.svg',
 		output: 'dist/svg/'
 	},
-	images: {
-		input: 'src/img/*',
-		output: 'dist/img/'
+	copy: {
+		input: 'src/copy/*',
+		output: 'docs/'
 	},
-	static: {
-		input: 'src/static/*',
-		output: 'dist/'
-	},
-	docs: {
-		input: 'src/docs/*.{html,md,markdown}',
-		output: 'docs/',
-		templates: 'src/docs/_templates/',
-		assets: 'src/docs/assets/**'
-	}
+	reload: './docs'
 };
 
 
@@ -98,14 +47,15 @@ var paths = {
  */
 
 var banner = {
-	full :
+	full:
 		'/*!\n' +
-		' * <%= package.name %> v<%= package.version %>: <%= package.description %>\n' +
+		' * <%= package.name %> v<%= package.version %>\n' +
+		' * <%= package.description %>\n' +
 		' * (c) ' + new Date().getFullYear() + ' <%= package.author.name %>\n' +
 		' * <%= package.license %> License\n' +
 		' * <%= package.repository.url %>\n' +
 		' */\n\n',
-	min :
+	min:
 		'/*!' +
 		' <%= package.name %> v<%= package.version %>' +
 		' | (c) ' + new Date().getFullYear() + ' <%= package.author.name %>' +
@@ -116,233 +66,250 @@ var banner = {
 
 
 /**
- * File Version
+ * Gulp Packages
  */
 
-var fileVersion = settings.cacheBust ? '.' + package.version : '';
+// General
+var {gulp, src, dest, watch, series, parallel} = require('gulp');
+var del = require('del');
+var flatmap = require('gulp-flatmap');
+var lazypipe = require('lazypipe');
+var rename = require('gulp-rename');
+var header = require('gulp-header');
+var package = require('./package.json');
+
+// Scripts
+var jshint = require('gulp-jshint');
+var stylish = require('jshint-stylish');
+var concat = require('gulp-concat');
+var uglify = require('gulp-uglify');
+var optimizejs = require('gulp-optimize-js');
+
+// Styles
+var sass = require('gulp-sass');
+var prefix = require('gulp-autoprefixer');
+var minify = require('gulp-cssnano');
+
+// SVGs
+var svgmin = require('gulp-svgmin');
+
+// BrowserSync
+var browserSync = require('browser-sync');
 
 
 /**
  * Gulp Tasks
  */
 
+// Remove pre-existing content from output folders
+var cleanDist = function (done) {
+
+	// Make sure this feature is activated before running
+	if (!settings.clean) return done();
+
+	// Clean the dist folder
+	del.sync([
+		paths.output
+	]);
+
+	// Signal completion
+	return done();
+
+};
+
+// Repeated JavaScript tasks
 var jsTasks = lazypipe()
-	.pipe(header, banner.full, { package : package })
+	.pipe(header, banner.full, {package: package})
 	.pipe(optimizejs)
-	.pipe(gulp.dest, paths.scripts.output)
-	.pipe(rename, { suffix: '.min' + fileVersion })
+	.pipe(dest, paths.scripts.output)
+	.pipe(rename, {suffix: '.min'})
 	.pipe(uglify)
 	.pipe(optimizejs)
-	.pipe(header, banner.min, { package : package })
-	.pipe(gulp.dest, paths.scripts.output);
+	.pipe(header, banner.min, {package: package})
+	.pipe(dest, paths.scripts.output);
 
 // Lint, minify, and concatenate scripts
-gulp.task('build:scripts', ['clean:dist'], function() {
-	if ( !settings.scripts ) return;
-
-	return gulp.src([paths.scripts.input, paths.scripts.polyfills])
-		.pipe(plumber())
-		.pipe(tap(function (file, t) {
-			if ( file.isDirectory() ) {
-				var name = file.relative + '.js';
-				return gulp.src(file.path + '/*.js')
-					.pipe(concat(name))
+var buildScripts = function (done) {
+
+	// Make sure this feature is activated before running
+	if (!settings.scripts) return done();
+
+	// Run tasks on script files
+	src(paths.scripts.input)
+		.pipe(flatmap(function(stream, file) {
+
+			// If the file is a directory
+			if (file.isDirectory()) {
+
+				// Setup a suffix variable
+				var suffix = '';
+
+				// If separate polyfill files enabled
+				if (settings.polyfills) {
+
+					// Update the suffix
+					suffix = '.polyfills';
+
+					// Grab files that aren't polyfills, concatenate them, and process them
+					src([file.path + '/*.js', '!' + file.path + '/*' + paths.scripts.polyfills])
+						.pipe(concat(file.relative + '.js'))
+						.pipe(jsTasks());
+
+				}
+
+				// Grab all files and concatenate them
+				// If separate polyfills enabled, this will have .polyfills in the filename
+				src(file.path + '/*.js')
+					.pipe(concat(file.relative + suffix + '.js'))
 					.pipe(jsTasks());
+
+				return stream;
+
 			}
-		}))
-		.pipe(jsTasks());
-});
-
-// Create scripts with polyfills
-gulp.task('build:polyfills', ['clean:dist'], function() {
-	if ( !settings.polyfills ) return;
-
-	return gulp.src(paths.scripts.input)
-		.pipe(plumber())
-		.pipe(concat(package.name + '.js'))
-		.pipe(rename({
-			suffix: ".polyfills"
-		}))
-		.pipe(jsTasks());
-});
+
+			// Otherwise, process the file
+			return stream.pipe(jsTasks());
+
+		}));
+
+	// Signal completion
+	done();
+
+};
+
+// Lint scripts
+var lintScripts = function (done) {
+
+	// Make sure this feature is activated before running
+	if (!settings.scripts) return done();
+
+	// Lint scripts
+	src(paths.scripts.input)
+		.pipe(jshint())
+		.pipe(jshint.reporter('jshint-stylish'));
+
+	// Signal completion
+	done();
+
+};
 
 // Process, lint, and minify Sass files
-gulp.task('build:styles', ['clean:dist'], function() {
-	if ( !settings.styles ) return;
+var buildStyles = function (done) {
 
-	return gulp.src(paths.styles.input)
-		.pipe(plumber())
+	// Make sure this feature is activated before running
+	if (!settings.styles) return done();
+
+	// Run tasks on all Sass files
+	src(paths.styles.input)
 		.pipe(sass({
 			outputStyle: 'expanded',
 			sourceComments: true
 		}))
-		.pipe(flatten())
 		.pipe(prefix({
-			browsers: ['last 2 version', '> 1%'],
+			browsers: ['last 2 version', '> 0.25%'],
 			cascade: true,
 			remove: true
 		}))
 		.pipe(header(banner.full, { package : package }))
-		.pipe(gulp.dest(paths.styles.output))
-		.pipe(rename({ suffix: '.min' + fileVersion }))
+		.pipe(dest(paths.styles.output))
+		.pipe(rename({suffix: '.min'}))
 		.pipe(minify({
 			discardComments: {
 				removeAll: true
 			}
 		}))
 		.pipe(header(banner.min, { package : package }))
-		.pipe(gulp.dest(paths.styles.output));
-});
-
-// Generate SVG sprites
-gulp.task('build:svgs', ['clean:dist'], function () {
-	if ( !settings.svgs ) return;
-
-	return gulp.src(paths.svgs.input)
-		.pipe(plumber())
-		.pipe(tap(function (file, t) {
-			if ( file.isDirectory() ) {
-				var name = file.relative + '.svg';
-				return gulp.src(file.path + '/*.svg')
-					.pipe(svgmin())
-					.pipe(svgstore({
-						fileName: name,
-						prefix: 'icon-',
-						inlineSvg: true
-					}))
-					.pipe(gulp.dest(paths.svgs.output));
-			}
-		}))
+		.pipe(dest(paths.styles.output));
+
+	// Signal completion
+	done();
+
+};
+
+// Optimize SVG files
+var buildSVGs = function (done) {
+
+	// Make sure this feature is activated before running
+	if (!settings.svgs) return done();
+
+	// Optimize SVG files
+	src(paths.svgs.input)
 		.pipe(svgmin())
-		.pipe(gulp.dest(paths.svgs.output));
-});
+		.pipe(dest(paths.svgs.output));
 
-// Copy image files into output folder
-gulp.task('build:images', ['clean:dist'], function() {
-	if ( !settings.images ) return;
+	// Signal completion
+	done();
 
-	return gulp.src(paths.images.input)
-		.pipe(plumber())
-		.pipe(gulp.dest(paths.images.output));
-});
+};
 
 // Copy static files into output folder
-gulp.task('build:static', ['clean:dist'], function() {
-	if ( !settings.static ) return;
+var copyFiles = function (done) {
 
-	return gulp.src(paths.static.input)
-		.pipe(plumber())
-		.pipe(gulp.dest(paths.static.output));
-});
+	// Make sure this feature is activated before running
+	if (!settings.copy) return done();
 
-// Lint scripts
-gulp.task('lint:scripts', function () {
-	if ( !settings.scripts ) return;
+	// Copy static files
+	src(paths.copy.input)
+		.pipe(dest(paths.copy.output));
 
-	return gulp.src(paths.scripts.input)
-		.pipe(plumber())
-		.pipe(jshint())
-		.pipe(jshint.reporter('jshint-stylish'));
-});
+	// Signal completion
+	done();
 
-// Remove pre-existing content from output folders
-gulp.task('clean:dist', function () {
-	del.sync([
-		paths.output
-	]);
-});
+};
 
-// Generate documentation
-gulp.task('build:docs', ['compile', 'clean:docs'], function() {
-	if ( !settings.docs ) return;
+// Watch for changes to the src directory
+var startServer = function (done) {
 
-	return gulp.src(paths.docs.input)
-		.pipe(plumber())
-		.pipe(fileinclude({
-			prefix: '@@',
-			basepath: '@file'
-		}))
-		.pipe(tap(function (file, t) {
-			if ( /\.md|\.markdown/.test(file.path) ) {
-				return t.through(markdown);
-			}
-		}))
-		.pipe(header(fs.readFileSync(paths.docs.templates + '/_header.html', 'utf8')))
-		.pipe(footer(fs.readFileSync(paths.docs.templates + '/_footer.html', 'utf8')))
-		.pipe(gulp.dest(paths.docs.output));
-});
-
-// Copy distribution files to docs
-gulp.task('copy:dist', ['compile', 'clean:docs'], function() {
-	if ( !settings.docs ) return;
-
-	return gulp.src(paths.output + '/**')
-		.pipe(plumber())
-		.pipe(gulp.dest(paths.docs.output + '/dist'));
-});
-
-// Copy documentation assets to docs
-gulp.task('copy:assets', ['clean:docs'], function() {
-	if ( !settings.docs ) return;
-
-	return gulp.src(paths.docs.assets)
-		.pipe(plumber())
-		.pipe(gulp.dest(paths.docs.output + '/assets'));
-});
-
-// Remove prexisting content from docs folder
-gulp.task('clean:docs', function () {
-	if ( !settings.docs ) return;
-	return del.sync(paths.docs.output);
-});
-
-// Spin up livereload server and listen for file changes
-gulp.task('listen', function () {
-	livereload.listen();
-	gulp.watch(paths.input).on('change', function(file) {
-		gulp.start('default');
-		gulp.start('refresh');
+	// Make sure this feature is activated before running
+	if (!settings.reload) return done();
+
+	// Initialize BrowserSync
+	browserSync.init({
+		server: {
+			baseDir: paths.reload
+		}
 	});
-});
 
-// Run livereload after file change
-gulp.task('refresh', ['compile', 'docs'], function () {
-	livereload.changed();
-});
+	// Signal completion
+	done();
+
+};
+
+// Reload the browser when files change
+var reloadBrowser = function (done) {
+	if (!settings.reload) return done();
+	browserSync.reload();
+	done();
+};
+
+// Watch for changes
+var watchSource = function (done) {
+	watch(paths.input, series(exports.default, reloadBrowser));
+	done();
+};
 
 
 /**
- * Task Runners
+ * Export Tasks
  */
 
-// Compile files
-gulp.task('compile', [
-	'lint:scripts',
-	'clean:dist',
-	'build:scripts',
-	'build:polyfills',
-	'build:styles',
-	'build:images',
-	'build:static',
-	'build:svgs'
-]);
-
-// Generate documentation
-gulp.task('docs', [
-	'clean:docs',
-	'build:docs',
-	'copy:dist',
-	'copy:assets'
-]);
-
-// Compile files and generate docs (default)
-gulp.task('default', [
-	'compile',
-	'docs'
-]);
-
-// Compile files and generate docs when something changes
-gulp.task('watch', [
-	'listen',
-	'default'
-]);
\ No newline at end of file
+// Default task
+// gulp
+exports.default = series(
+	cleanDist,
+	parallel(
+		buildScripts,
+		lintScripts,
+		buildStyles,
+		buildSVGs,
+		copyFiles
+	)
+);
+
+// Watch and reload
+// gulp watch
+exports.watch = series(
+	exports.default,
+	startServer,
+	watchSource
+);
\ No newline at end of file
diff --git a/package-lock.json b/package-lock.json
new file mode 100644
index 0000000..fd896ae
--- /dev/null
+++ b/package-lock.json
@@ -0,0 +1,9037 @@
+{
+	"name": "smooth-scroll",
+	"version": "15.1.0",
+	"lockfileVersion": 1,
+	"requires": true,
+	"dependencies": {
+		"abbrev": {
+			"version": "1.1.1",
+			"resolved": "https://registry.npmjs.org/abbrev/-/abbrev-1.1.1.tgz",
+			"integrity": "sha512-nne9/IiQ/hzIhY6pdDnbBtz7DjPTKrY00P/zvPSm5pOFkl6xuGrGnXn/VtTNNfNtAfZ9/1RtehkszU9qcTii0Q==",
+			"dev": true
+		},
+		"accepts": {
+			"version": "1.3.5",
+			"resolved": "https://registry.npmjs.org/accepts/-/accepts-1.3.5.tgz",
+			"integrity": "sha1-63d99gEXI6OxTopywIBcjoZ0a9I=",
+			"dev": true,
+			"requires": {
+				"mime-types": "~2.1.18",
+				"negotiator": "0.6.1"
+			}
+		},
+		"acorn": {
+			"version": "3.3.0",
+			"resolved": "http://registry.npmjs.org/acorn/-/acorn-3.3.0.tgz",
+			"integrity": "sha1-ReN/s56No/JbruP/U2niu18iAXo=",
+			"dev": true
+		},
+		"after": {
+			"version": "0.8.2",
+			"resolved": "https://registry.npmjs.org/after/-/after-0.8.2.tgz",
+			"integrity": "sha1-/ts5T58OAqqXaOcCvaI7UF+ufh8=",
+			"dev": true
+		},
+		"ajv": {
+			"version": "6.6.1",
+			"resolved": "https://registry.npmjs.org/ajv/-/ajv-6.6.1.tgz",
+			"integrity": "sha512-ZoJjft5B+EJBjUyu9C9Hc0OZyPZSSlOF+plzouTrg6UlA8f+e/n8NIgBFG/9tppJtpPWfthHakK7juJdNDODww==",
+			"dev": true,
+			"requires": {
+				"fast-deep-equal": "^2.0.1",
+				"fast-json-stable-stringify": "^2.0.0",
+				"json-schema-traverse": "^0.4.1",
+				"uri-js": "^4.2.2"
+			}
+		},
+		"alphanum-sort": {
+			"version": "1.0.2",
+			"resolved": "https://registry.npmjs.org/alphanum-sort/-/alphanum-sort-1.0.2.tgz",
+			"integrity": "sha1-l6ERlkmyEa0zaR2fn0hqjsn74KM=",
+			"dev": true
+		},
+		"amdefine": {
+			"version": "1.0.1",
+			"resolved": "https://registry.npmjs.org/amdefine/-/amdefine-1.0.1.tgz",
+			"integrity": "sha1-SlKCrBZHKek2Gbz9OtFR+BfOkfU=",
+			"dev": true
+		},
+		"ansi-colors": {
+			"version": "1.1.0",
+			"resolved": "http://registry.npmjs.org/ansi-colors/-/ansi-colors-1.1.0.tgz",
+			"integrity": "sha512-SFKX67auSNoVR38N3L+nvsPjOE0bybKTYbkf5tRvushrAPQ9V75huw0ZxBkKVeRU9kqH3d6HA4xTckbwZ4ixmA==",
+			"dev": true,
+			"requires": {
+				"ansi-wrap": "^0.1.0"
+			}
+		},
+		"ansi-cyan": {
+			"version": "0.1.1",
+			"resolved": "https://registry.npmjs.org/ansi-cyan/-/ansi-cyan-0.1.1.tgz",
+			"integrity": "sha1-U4rlKK+JgvKK4w2G8vF0VtJgmHM=",
+			"dev": true,
+			"requires": {
+				"ansi-wrap": "0.1.0"
+			}
+		},
+		"ansi-gray": {
+			"version": "0.1.1",
+			"resolved": "https://registry.npmjs.org/ansi-gray/-/ansi-gray-0.1.1.tgz",
+			"integrity": "sha1-KWLPVOyXksSFEKPetSRDaGHvclE=",
+			"dev": true,
+			"requires": {
+				"ansi-wrap": "0.1.0"
+			}
+		},
+		"ansi-red": {
+			"version": "0.1.1",
+			"resolved": "https://registry.npmjs.org/ansi-red/-/ansi-red-0.1.1.tgz",
+			"integrity": "sha1-jGOPnRCAgAo1PJwoyKgcpHBdlGw=",
+			"dev": true,
+			"requires": {
+				"ansi-wrap": "0.1.0"
+			}
+		},
+		"ansi-regex": {
+			"version": "2.1.1",
+			"resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-2.1.1.tgz",
+			"integrity": "sha1-w7M6te42DYbg5ijwRorn7yfWVN8=",
+			"dev": true
+		},
+		"ansi-styles": {
+			"version": "2.2.1",
+			"resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-2.2.1.tgz",
+			"integrity": "sha1-tDLdM1i2NM914eRmQ2gkBTPB3b4=",
+			"dev": true
+		},
+		"ansi-wrap": {
+			"version": "0.1.0",
+			"resolved": "https://registry.npmjs.org/ansi-wrap/-/ansi-wrap-0.1.0.tgz",
+			"integrity": "sha1-qCJQ3bABXponyoLoLqYDu/pF768=",
+			"dev": true
+		},
+		"anymatch": {
+			"version": "2.0.0",
+			"resolved": "https://registry.npmjs.org/anymatch/-/anymatch-2.0.0.tgz",
+			"integrity": "sha512-5teOsQWABXHHBFP9y3skS5P3d/WfWXpv3FUpy+LorMrNYaT9pI4oLMQX7jzQ2KklNpGpWHzdCXTDT2Y3XGlZBw==",
+			"dev": true,
+			"requires": {
+				"micromatch": "^3.1.4",
+				"normalize-path": "^2.1.1"
+			},
+			"dependencies": {
+				"micromatch": {
+					"version": "3.1.10",
+					"resolved": "https://registry.npmjs.org/micromatch/-/micromatch-3.1.10.tgz",
+					"integrity": "sha512-MWikgl9n9M3w+bpsY3He8L+w9eF9338xRl8IAO5viDizwSzziFEyUzo2xrrloB64ADbTf8uA8vRqqttDTOmccg==",
+					"dev": true,
+					"requires": {
+						"arr-diff": "^4.0.0",
+						"array-unique": "^0.3.2",
+						"braces": "^2.3.1",
+						"define-property": "^2.0.2",
+						"extend-shallow": "^3.0.2",
+						"extglob": "^2.0.4",
+						"fragment-cache": "^0.2.1",
+						"kind-of": "^6.0.2",
+						"nanomatch": "^1.2.9",
+						"object.pick": "^1.3.0",
+						"regex-not": "^1.0.0",
+						"snapdragon": "^0.8.1",
+						"to-regex": "^3.0.2"
+					}
+				}
+			}
+		},
+		"append-buffer": {
+			"version": "1.0.2",
+			"resolved": "https://registry.npmjs.org/append-buffer/-/append-buffer-1.0.2.tgz",
+			"integrity": "sha1-2CIM9GYIFSXv6lBhTz3mUU36WPE=",
+			"dev": true,
+			"requires": {
+				"buffer-equal": "^1.0.0"
+			}
+		},
+		"aproba": {
+			"version": "1.2.0",
+			"resolved": "https://registry.npmjs.org/aproba/-/aproba-1.2.0.tgz",
+			"integrity": "sha512-Y9J6ZjXtoYh8RnXVCMOU/ttDmk1aBjunq9vO0ta5x85WDQiQfUF9sIPBITdbiiIVcBo03Hi3jMxigBtsddlXRw==",
+			"dev": true
+		},
+		"archy": {
+			"version": "1.0.0",
+			"resolved": "https://registry.npmjs.org/archy/-/archy-1.0.0.tgz",
+			"integrity": "sha1-+cjBN1fMHde8N5rHeyxipcKGjEA=",
+			"dev": true
+		},
+		"are-we-there-yet": {
+			"version": "1.1.5",
+			"resolved": "https://registry.npmjs.org/are-we-there-yet/-/are-we-there-yet-1.1.5.tgz",
+			"integrity": "sha512-5hYdAkZlcG8tOLujVDTgCT+uPX0VnpAH28gWsLfzpXYm7wP6mp5Q/gYyR7YQ0cKVJcXJnl3j2kpBan13PtQf6w==",
+			"dev": true,
+			"requires": {
+				"delegates": "^1.0.0",
+				"readable-stream": "^2.0.6"
+			}
+		},
+		"argparse": {
+			"version": "1.0.10",
+			"resolved": "https://registry.npmjs.org/argparse/-/argparse-1.0.10.tgz",
+			"integrity": "sha512-o5Roy6tNG4SL/FOkCAN6RzjiakZS25RLYFrcMttJqbdd8BWrnA+fGz57iN5Pb06pvBGvl5gQ0B48dJlslXvoTg==",
+			"dev": true,
+			"requires": {
+				"sprintf-js": "~1.0.2"
+			}
+		},
+		"arr-diff": {
+			"version": "4.0.0",
+			"resolved": "https://registry.npmjs.org/arr-diff/-/arr-diff-4.0.0.tgz",
+			"integrity": "sha1-1kYQdP6/7HHn4VI1dhoyml3HxSA=",
+			"dev": true
+		},
+		"arr-filter": {
+			"version": "1.1.2",
+			"resolved": "https://registry.npmjs.org/arr-filter/-/arr-filter-1.1.2.tgz",
+			"integrity": "sha1-Q/3d0JHo7xGqTEXZzcGOLf8XEe4=",
+			"dev": true,
+			"requires": {
+				"make-iterator": "^1.0.0"
+			}
+		},
+		"arr-flatten": {
+			"version": "1.1.0",
+			"resolved": "https://registry.npmjs.org/arr-flatten/-/arr-flatten-1.1.0.tgz",
+			"integrity": "sha512-L3hKV5R/p5o81R7O02IGnwpDmkp6E982XhtbuwSe3O4qOtMMMtodicASA1Cny2U+aCXcNpml+m4dPsvsJ3jatg==",
+			"dev": true
+		},
+		"arr-map": {
+			"version": "2.0.2",
+			"resolved": "https://registry.npmjs.org/arr-map/-/arr-map-2.0.2.tgz",
+			"integrity": "sha1-Onc0X/wc814qkYJWAfnljy4kysQ=",
+			"dev": true,
+			"requires": {
+				"make-iterator": "^1.0.0"
+			}
+		},
+		"arr-union": {
+			"version": "3.1.0",
+			"resolved": "https://registry.npmjs.org/arr-union/-/arr-union-3.1.0.tgz",
+			"integrity": "sha1-45sJrqne+Gao8gbiiK9jkZuuOcQ=",
+			"dev": true
+		},
+		"array-differ": {
+			"version": "1.0.0",
+			"resolved": "https://registry.npmjs.org/array-differ/-/array-differ-1.0.0.tgz",
+			"integrity": "sha1-7/UuN1gknTO+QCuLuOVkuytdQDE=",
+			"dev": true
+		},
+		"array-each": {
+			"version": "1.0.1",
+			"resolved": "https://registry.npmjs.org/array-each/-/array-each-1.0.1.tgz",
+			"integrity": "sha1-p5SvDAWrF1KEbudTofIRoFugxE8=",
+			"dev": true
+		},
+		"array-find-index": {
+			"version": "1.0.2",
+			"resolved": "https://registry.npmjs.org/array-find-index/-/array-find-index-1.0.2.tgz",
+			"integrity": "sha1-3wEKoSh+Fku9pvlyOwqWoexBh6E=",
+			"dev": true
+		},
+		"array-initial": {
+			"version": "1.1.0",
+			"resolved": "https://registry.npmjs.org/array-initial/-/array-initial-1.1.0.tgz",
+			"integrity": "sha1-L6dLJnOTccOUe9enrcc74zSz15U=",
+			"dev": true,
+			"requires": {
+				"array-slice": "^1.0.0",
+				"is-number": "^4.0.0"
+			},
+			"dependencies": {
+				"is-number": {
+					"version": "4.0.0",
+					"resolved": "https://registry.npmjs.org/is-number/-/is-number-4.0.0.tgz",
+					"integrity": "sha512-rSklcAIlf1OmFdyAqbnWTLVelsQ58uvZ66S/ZyawjWqIviTWCjg2PzVGw8WUA+nNuPTqb4wgA+NszrJ+08LlgQ==",
+					"dev": true
+				}
+			}
+		},
+		"array-last": {
+			"version": "1.3.0",
+			"resolved": "https://registry.npmjs.org/array-last/-/array-last-1.3.0.tgz",
+			"integrity": "sha512-eOCut5rXlI6aCOS7Z7kCplKRKyiFQ6dHFBem4PwlwKeNFk2/XxTrhRh5T9PyaEWGy/NHTZWbY+nsZlNFJu9rYg==",
+			"dev": true,
+			"requires": {
+				"is-number": "^4.0.0"
+			},
+			"dependencies": {
+				"is-number": {
+					"version": "4.0.0",
+					"resolved": "https://registry.npmjs.org/is-number/-/is-number-4.0.0.tgz",
+					"integrity": "sha512-rSklcAIlf1OmFdyAqbnWTLVelsQ58uvZ66S/ZyawjWqIviTWCjg2PzVGw8WUA+nNuPTqb4wgA+NszrJ+08LlgQ==",
+					"dev": true
+				}
+			}
+		},
+		"array-slice": {
+			"version": "1.1.0",
+			"resolved": "https://registry.npmjs.org/array-slice/-/array-slice-1.1.0.tgz",
+			"integrity": "sha512-B1qMD3RBP7O8o0H2KbrXDyB0IccejMF15+87Lvlor12ONPRHP6gTjXMNkt/d3ZuOGbAe66hFmaCfECI24Ufp6w==",
+			"dev": true
+		},
+		"array-sort": {
+			"version": "1.0.0",
+			"resolved": "https://registry.npmjs.org/array-sort/-/array-sort-1.0.0.tgz",
+			"integrity": "sha512-ihLeJkonmdiAsD7vpgN3CRcx2J2S0TiYW+IS/5zHBI7mKUq3ySvBdzzBfD236ubDBQFiiyG3SWCPc+msQ9KoYg==",
+			"dev": true,
+			"requires": {
+				"default-compare": "^1.0.0",
+				"get-value": "^2.0.6",
+				"kind-of": "^5.0.2"
+			},
+			"dependencies": {
+				"kind-of": {
+					"version": "5.1.0",
+					"resolved": "https://registry.npmjs.org/kind-of/-/kind-of-5.1.0.tgz",
+					"integrity": "sha512-NGEErnH6F2vUuXDh+OlbcKW7/wOcfdRHaZ7VWtqCztfHri/++YKmP51OdWeGPuqCOba6kk2OTe5d02VmTB80Pw==",
+					"dev": true
+				}
+			}
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+			"resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
+			"integrity": "sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8=",
+			"dev": true
+		},
+		"ws": {
+			"version": "6.1.2",
+			"resolved": "https://registry.npmjs.org/ws/-/ws-6.1.2.tgz",
+			"integrity": "sha512-rfUqzvz0WxmSXtJpPMX2EeASXabOrSMk1ruMOV3JBTBjo4ac2lDjGGsbQSyxj8Odhw5fBib8ZKEjDNvgouNKYw==",
+			"dev": true,
+			"requires": {
+				"async-limiter": "~1.0.0"
+			}
+		},
+		"xmlhttprequest-ssl": {
+			"version": "1.5.5",
+			"resolved": "https://registry.npmjs.org/xmlhttprequest-ssl/-/xmlhttprequest-ssl-1.5.5.tgz",
+			"integrity": "sha1-wodrBhaKrcQOV9l+gRkayPQ5iz4=",
+			"dev": true
+		},
+		"xtend": {
+			"version": "4.0.1",
+			"resolved": "https://registry.npmjs.org/xtend/-/xtend-4.0.1.tgz",
+			"integrity": "sha1-pcbVMr5lbiPbgg77lDofBJmNY68=",
+			"dev": true
+		},
+		"y18n": {
+			"version": "3.2.1",
+			"resolved": "https://registry.npmjs.org/y18n/-/y18n-3.2.1.tgz",
+			"integrity": "sha1-bRX7qITAhnnA136I53WegR4H+kE=",
+			"dev": true
+		},
+		"yallist": {
+			"version": "2.1.2",
+			"resolved": "https://registry.npmjs.org/yallist/-/yallist-2.1.2.tgz",
+			"integrity": "sha1-HBH5IY8HYImkfdUS+TxmmaaoHVI=",
+			"dev": true
+		},
+		"yargs": {
+			"version": "6.4.0",
+			"resolved": "http://registry.npmjs.org/yargs/-/yargs-6.4.0.tgz",
+			"integrity": "sha1-gW4ahm1VmMzzTlWW3c4i2S2kkNQ=",
+			"dev": true,
+			"requires": {
+				"camelcase": "^3.0.0",
+				"cliui": "^3.2.0",
+				"decamelize": "^1.1.1",
+				"get-caller-file": "^1.0.1",
+				"os-locale": "^1.4.0",
+				"read-pkg-up": "^1.0.1",
+				"require-directory": "^2.1.1",
+				"require-main-filename": "^1.0.1",
+				"set-blocking": "^2.0.0",
+				"string-width": "^1.0.2",
+				"which-module": "^1.0.0",
+				"window-size": "^0.2.0",
+				"y18n": "^3.2.1",
+				"yargs-parser": "^4.1.0"
+			}
+		},
+		"yargs-parser": {
+			"version": "4.2.1",
+			"resolved": "http://registry.npmjs.org/yargs-parser/-/yargs-parser-4.2.1.tgz",
+			"integrity": "sha1-KczqwNxPA8bIe0qfIX3RjJ90hxw=",
+			"dev": true,
+			"requires": {
+				"camelcase": "^3.0.0"
+			}
+		},
+		"yauzl": {
+			"version": "2.4.1",
+			"resolved": "https://registry.npmjs.org/yauzl/-/yauzl-2.4.1.tgz",
+			"integrity": "sha1-lSj0QtqxsihOWLQ3m7GU4i4MQAU=",
+			"dev": true,
+			"optional": true,
+			"requires": {
+				"fd-slicer": "~1.0.1"
+			}
+		},
+		"yeast": {
+			"version": "0.1.2",
+			"resolved": "https://registry.npmjs.org/yeast/-/yeast-0.1.2.tgz",
+			"integrity": "sha1-AI4G2AlDIMNy28L47XagymyKxBk=",
+			"dev": true
+		}
+	}
+}
diff --git a/package.json b/package.json
index fc93b37..f5d4e70 100755
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
 	"name": "smooth-scroll",
-	"version": "15.1.0",
+	"version": "15.1.1",
 	"description": "Animate scrolling to anchor links",
 	"main": "./dist/smooth-scroll.polyfills.min.js",
 	"author": {
@@ -13,25 +13,22 @@
 		"url": "http://github.com/cferdinandi/smooth-scroll"
 	},
 	"devDependencies": {
-		"gulp": "^3.9.1",
-		"node-fs": "^0.1.7",
-		"del": "^2.2.2",
-		"lazypipe": "^1.0.1",
-		"gulp-plumber": "^1.1.0",
-		"gulp-flatten": "^0.3.1",
-		"gulp-tap": "^0.1.3",
-		"gulp-rename": "^1.2.2",
-		"gulp-header": "^1.8.8",
-		"gulp-footer": "^1.0.5",
-		"gulp-watch": "^4.3.11",
-		"gulp-livereload": "^3.8.1",
-		"jshint": "^2.9.4",
-		"gulp-jshint": "^2.0.4",
-		"jshint-stylish": "^2.2.1",
-		"gulp-concat": "^2.6.1",
-		"gulp-uglify": "^2.1.2",
-		"gulp-optimize-js": "^1.1.0",
-		"gulp-markdown": "^1.2.0",
-		"gulp-file-include": "^0.14.0"
+		"gulp": "next",
+		"del": "3.0.0",
+		"lazypipe": "1.0.1",
+		"gulp-flatmap": "1.0.2",
+		"gulp-header": "2.0.5",
+		"gulp-rename": "1.4.0",
+		"jshint": "2.9.6",
+		"gulp-jshint": "2.1.0",
+		"jshint-stylish": "2.2.1",
+		"gulp-concat": "2.6.1",
+		"gulp-uglify": "3.0.1",
+		"gulp-optimize-js": "1.1.0",
+		"gulp-sass": "4.0.2",
+		"gulp-cssnano": "2.1.3",
+		"gulp-autoprefixer": "6.0.0",
+		"gulp-svgmin": "2.1.0",
+		"browser-sync": "2.26.3"
 	}
-}
\ No newline at end of file
+}
diff --git a/src/copy/index.html b/src/copy/index.html
new file mode 100755
index 0000000..f0d477a
--- /dev/null
+++ b/src/copy/index.html
@@ -0,0 +1,132 @@
+<!DOCTYPE html>
+<html lang="en">
+
+	<head>
+		<meta charset="utf-8">
+		<title>Smooth Scroll</title>
+		<meta name="viewport" content="width=device-width, initial-scale=1.0">
+
+		<!-- stylesheets -->
+		<style type="text/css">
+			body {
+				font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Roboto", "Oxygen", "Ubuntu", "Cantarell", "Fira Sans", "Droid Sans", "Helvetica Neue", sans-serif;
+				font-size: 112.5%;
+				margin-left: auto;
+				margin-right: auto;
+				max-width: 40em;
+				width: 88%;
+			}
+		</style>
+	</head>
+
+	<body>
+
+		<main id="top">
+
+			<nav>
+				<h1>Smooth Scroll</h1>
+				<p><a href="https://github.com/cferdinandi/smooth-scroll">GitHub</a></p>
+				<hr>
+			</nav>
+
+			<section>
+				<p>
+				    <strong>Linear</strong><br>
+				    <a data-easing="linear" href="#bazinga">Linear (no other options)</a><br>
+				</p>
+
+				<p>
+				    <strong>Ease-In</strong><br>
+				    <a data-easing="easeInQuad" href="#bazinga">Quad</a><br>
+				    <a data-easing="easeInCubic" href="#bazinga">Cubic</a><br>
+				    <a data-easing="easeInQuart" href="#bazinga">Quart</a><br>
+				    <a data-easing="easeInQuint" href="#bazinga">Quint</a>
+				</p>
+
+				<p>
+				    <strong>Ease-In-Out</strong><br>
+				    <a data-easing="easeInOutQuad" href="#bazinga">Quad</a><br>
+				    <a data-easing="easeInOutCubic" href="#bazinga">Cubic</a><br>
+				    <a data-easing="easeInOutQuart" href="#bazinga">Quart</a><br>
+				    <a data-easing="easeInOutQuint" href="#bazinga">Quint</a>
+				</p>
+
+				<p>
+				    <strong>Ease-Out</strong><br>
+				    <a data-easing="easeOutQuad" href="#bazinga">Quad</a><br>
+				    <a data-easing="easeOutCubic" href="#bazinga">Cubic</a><br>
+				    <a data-easing="easeOutQuart" href="#bazinga">Quart</a><br>
+				    <a data-easing="easeOutQuint" href="#bazinga">Quint</a>
+				</p>
+
+				<p>
+				    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
+				    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
+				    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.
+				</p>
+
+				<p>
+				    <strong>Non-ASCII Characters</strong><br>
+				    <a href="#中文">中文</a>
+				</p>
+
+				<p>
+				    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
+				    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
+				    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.
+				</p>
+
+				<p id="中文">中文</p>
+
+				<p id="bazinga"><a href="#1@#%^-bottom">Bazinga!</a></p>
+
+				<p>
+				    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
+				    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
+				    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.
+				</p>
+
+				<p id="1@#%^-bottom"><a href="#top">Back to the top</a></p>
+			</section>
+		</main>
+
+		<!-- Javascript -->
+		<script src="http://github.com/dist/smooth-scroll.polyfills.js"></script>
+		<script>
+
+			// Instantiate Scrolls
+			var scroll = new SmoothScroll('a[href*="#"]:not([data-easing])');
+
+			if (document.querySelector('[data-easing]')) {
+				var linear = new SmoothScroll('[data-easing="linear"]', {easing: 'linear'});
+
+				var easeInQuad = new SmoothScroll('[data-easing="easeInQuad"]', {easing: 'easeInQuad'});
+				var easeInCubic = new SmoothScroll('[data-easing="easeInCubic"]', {easing: 'easeInCubic'});
+				var easeInQuart = new SmoothScroll('[data-easing="easeInQuart"]', {easing: 'easeInQuart'});
+				var easeInQuint = new SmoothScroll('[data-easing="easeInQuint"]', {easing: 'easeInQuint'});
+
+				var easeInOutQuad = new SmoothScroll('[data-easing="easeInOutQuad"]', {easing: 'easeInOutQuad'});
+				var easeInOutCubic = new SmoothScroll('[data-easing="easeInOutCubic"]', {easing: 'easeInOutCubic'});
+				var easeInOutQuart = new SmoothScroll('[data-easing="easeInOutQuart"]', {easing: 'easeInOutQuart'});
+				var easeInOutQuint = new SmoothScroll('[data-easing="easeInOutQuint"]', {easing: 'easeInOutQuint'});
+
+				var easeOutQuad = new SmoothScroll('[data-easing="easeOutQuad"]', {easing: 'easeOutQuad'});
+				var easeOutCubic = new SmoothScroll('[data-easing="easeOutCubic"]', {easing: 'easeOutCubic'});
+				var easeOutQuart = new SmoothScroll('[data-easing="easeOutQuart"]', {easing: 'easeOutQuart'});
+				var easeOutQuint = new SmoothScroll('[data-easing="easeOutQuint"]', {easing: 'easeOutQuint'});
+			}
+
+			// // Log scroll events
+			// var logScrollEvent = function (event) {
+			// 	console.log('type:', event.type);
+			// 	console.log('anchor:', event.detail.anchor);
+			// 	console.log('toggle:', event.detail.toggle);
+			// };
+			// document.addEventListener('scrollStart', logScrollEvent, false);
+			// document.addEventListener('scrollStop', logScrollEvent, false);
+			// document.addEventListener('scrollCancel', logScrollEvent, false);
+		</script>
+
+
+	</body>
+</html>
\ No newline at end of file
diff --git a/src/copy/speed.html b/src/copy/speed.html
new file mode 100644
index 0000000..3138aea
--- /dev/null
+++ b/src/copy/speed.html
@@ -0,0 +1,69 @@
+<!DOCTYPE html>
+<html lang="en">
+
+	<head>
+		<meta charset="utf-8">
+		<title>Smooth Scroll</title>
+		<meta name="viewport" content="width=device-width, initial-scale=1.0">
+
+		<!-- stylesheets -->
+		<style type="text/css">
+			body {
+				font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Roboto", "Oxygen", "Ubuntu", "Cantarell", "Fira Sans", "Droid Sans", "Helvetica Neue", sans-serif;
+				font-size: 112.5%;
+				margin-left: auto;
+				margin-right: auto;
+				max-width: 40em;
+				width: 88%;
+			}
+		</style>
+	</head>
+
+	<body>
+
+		<main id="top">
+
+			<nav>
+				<h1>Smooth Scroll</h1>
+				<p><a href="https://github.com/cferdinandi/smooth-scroll">GitHub</a></p>
+				<hr>
+			</nav>
+
+			<section>
+				<p>
+				    <a href="#bazinga">Click Me</a><br>
+				    <a href="#1@#%^-bottom">Or me</a>
+				</p>
+
+				<p>
+				    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
+				    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
+				    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.
+				</p>
+
+				<p id="bazinga"><a href="#1@#%^-bottom">Bazinga!</a></p>
+
+				<p>
+				    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
+				    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
+				    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.
+				    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
+				    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
+				    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.
+				</p>
+
+				<p id="1@#%^-bottom"><a href="#top">Back to the top</a></p>
+
+				<p>.<br>.<br>.<br>.<br>.</p>
+			</section>
+		</main>
+
+		<!-- Javascript -->
+		<script src="http://github.com/dist/smooth-scroll.polyfills.js"></script>
+		<script>
+			var scroll = new SmoothScroll('a[href*="#"]');
+		</script>
+
+
+	</body>
+</html>
\ No newline at end of file
diff --git a/src/docs/_templates/_footer.html b/src/docs/_templates/_footer.html
deleted file mode 100755
index 9cbe3d3..0000000
--- a/src/docs/_templates/_footer.html
+++ /dev/null
@@ -1,44 +0,0 @@
-
-			</section>
-		</main>
-
-		<!-- Javascript -->
-		<script src="http://github.com/dist/smooth-scroll.polyfills.js"></script>
-		<script>
-
-			// Instantiate Scrolls
-			var scroll = new SmoothScroll('a[href*="#"]:not([data-easing])');
-
-			if (document.querySelector('[data-easing]')) {
-				var linear = new SmoothScroll('[data-easing="linear"]', {easing: 'linear'});
-
-				var easeInQuad = new SmoothScroll('[data-easing="easeInQuad"]', {easing: 'easeInQuad'});
-				var easeInCubic = new SmoothScroll('[data-easing="easeInCubic"]', {easing: 'easeInCubic'});
-				var easeInQuart = new SmoothScroll('[data-easing="easeInQuart"]', {easing: 'easeInQuart'});
-				var easeInQuint = new SmoothScroll('[data-easing="easeInQuint"]', {easing: 'easeInQuint'});
-
-				var easeInOutQuad = new SmoothScroll('[data-easing="easeInOutQuad"]', {easing: 'easeInOutQuad'});
-				var easeInOutCubic = new SmoothScroll('[data-easing="easeInOutCubic"]', {easing: 'easeInOutCubic'});
-				var easeInOutQuart = new SmoothScroll('[data-easing="easeInOutQuart"]', {easing: 'easeInOutQuart'});
-				var easeInOutQuint = new SmoothScroll('[data-easing="easeInOutQuint"]', {easing: 'easeInOutQuint'});
-
-				var easeOutQuad = new SmoothScroll('[data-easing="easeOutQuad"]', {easing: 'easeOutQuad'});
-				var easeOutCubic = new SmoothScroll('[data-easing="easeOutCubic"]', {easing: 'easeOutCubic'});
-				var easeOutQuart = new SmoothScroll('[data-easing="easeOutQuart"]', {easing: 'easeOutQuart'});
-				var easeOutQuint = new SmoothScroll('[data-easing="easeOutQuint"]', {easing: 'easeOutQuint'});
-			}
-
-			// // Log scroll events
-			// var logScrollEvent = function (event) {
-			// 	console.log('type:', event.type);
-			// 	console.log('anchor:', event.detail.anchor);
-			// 	console.log('toggle:', event.detail.toggle);
-			// };
-			// document.addEventListener('scrollStart', logScrollEvent, false);
-			// document.addEventListener('scrollStop', logScrollEvent, false);
-			// document.addEventListener('scrollCancel', logScrollEvent, false);
-		</script>
-
-
-	</body>
-</html>
\ No newline at end of file
diff --git a/src/docs/_templates/_header.html b/src/docs/_templates/_header.html
deleted file mode 100755
index f41de92..0000000
--- a/src/docs/_templates/_header.html
+++ /dev/null
@@ -1,32 +0,0 @@
-<!DOCTYPE html>
-<html lang="en">
-
-	<head>
-		<meta charset="utf-8">
-		<title>Smooth Scroll</title>
-		<meta name="viewport" content="width=device-width, initial-scale=1.0">
-
-		<!-- stylesheets -->
-		<style type="text/css">
-			body {
-				font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Roboto", "Oxygen", "Ubuntu", "Cantarell", "Fira Sans", "Droid Sans", "Helvetica Neue", sans-serif;
-				font-size: 112.5%;
-				margin-left: auto;
-				margin-right: auto;
-				max-width: 40em;
-				width: 88%;
-			}
-		</style>
-	</head>
-
-	<body>
-
-		<main id="top">
-
-			<nav>
-				<h1>Smooth Scroll</h1>
-				<p><a href="https://github.com/cferdinandi/smooth-scroll">GitHub</a></p>
-				<hr>
-			</nav>
-
-			<section>
diff --git a/src/docs/index.md b/src/docs/index.md
deleted file mode 100755
index 0f6328c..0000000
--- a/src/docs/index.md
+++ /dev/null
@@ -1,57 +0,0 @@
-<p>
-	<strong>Linear</strong><br>
-	<a data-easing="linear" href="#bazinga">Linear (no other options)</a><br>
-</p>
-
-<p>
-	<strong>Ease-In</strong><br>
-	<a data-easing="easeInQuad" href="#bazinga">Quad</a><br>
-	<a data-easing="easeInCubic" href="#bazinga">Cubic</a><br>
-	<a data-easing="easeInQuart" href="#bazinga">Quart</a><br>
-	<a data-easing="easeInQuint" href="#bazinga">Quint</a>
-</p>
-
-<p>
-	<strong>Ease-In-Out</strong><br>
-	<a data-easing="easeInOutQuad" href="#bazinga">Quad</a><br>
-	<a data-easing="easeInOutCubic" href="#bazinga">Cubic</a><br>
-	<a data-easing="easeInOutQuart" href="#bazinga">Quart</a><br>
-	<a data-easing="easeInOutQuint" href="#bazinga">Quint</a>
-</p>
-
-<p>
-	<strong>Ease-Out</strong><br>
-	<a data-easing="easeOutQuad" href="#bazinga">Quad</a><br>
-	<a data-easing="easeOutCubic" href="#bazinga">Cubic</a><br>
-	<a data-easing="easeOutQuart" href="#bazinga">Quart</a><br>
-	<a data-easing="easeOutQuint" href="#bazinga">Quint</a>
-</p>
-
-<p>
-	.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
-	.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
-	.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.
-</p>
-
-<p>
-	<strong>Non-ASCII Characters</strong><br>
-	<a href="#中文">中文</a>
-</p>
-
-<p>
-	.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
-	.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
-	.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.
-</p>
-
-<p id="中文">中文</p>
-
-<p id="bazinga"><a href="#1@#%^-bottom">Bazinga!</a></p>
-
-<p>
-	.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
-	.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
-	.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.
-</p>
-
-<p id="1@#%^-bottom"><a href="#top">Back to the top</a></p>
\ No newline at end of file
diff --git a/src/docs/speed.md b/src/docs/speed.md
deleted file mode 100644
index 93b9620..0000000
--- a/src/docs/speed.md
+++ /dev/null
@@ -1,25 +0,0 @@
-<p>
-	<a href="#bazinga">Click Me</a><br>
-	<a href="#1@#%^-bottom">Or me</a>
-</p>
-
-<p>
-	.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
-	.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
-	.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.
-</p>
-
-<p id="bazinga"><a href="#1@#%^-bottom">Bazinga!</a></p>
-
-<p>
-	.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
-	.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
-	.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.
-	.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
-	.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
-	.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.
-</p>
-
-<p id="1@#%^-bottom"><a href="#top">Back to the top</a></p>
-
-<p>.<br>.<br>.<br>.<br>.</p>
\ No newline at end of file
diff --git a/src/js/smooth-scroll.js b/src/js/smooth-scroll.js
index 59bc1bc..2db1601 100755
--- a/src/js/smooth-scroll.js
+++ b/src/js/smooth-scroll.js
@@ -98,21 +98,6 @@
 		return parseInt(window.getComputedStyle(elem).height, 10);
 	};
 
-	/**
-	 * Decode a URI, with error check
-	 * @param  {String} hash The URI to decode
-	 * @return {String}      A decoded URI (or the original string if an error is thrown)
-	 */
-	var decode = function (hash) {
-		var decoded;
-		try {
-			decoded = decodeURIComponent(hash);
-		} catch(e) {
-			decoded = hash;
-		}
-		return decoded;
-	};
-
 	/**
 	 * Escape special characters for use with querySelector
 	 * @author Mathias Bynens
@@ -189,13 +174,7 @@
 		}
 
 		// Return sanitized hash
-		var hash;
-		try {
-			hash = decodeURIComponent('#' + result);
-		} catch(e) {
-			hash = '#' + result;
-		}
-		return hash;
+		return '#' + result;
 
 	};
 
@@ -528,7 +507,7 @@
 			if (toggle.hostname !== window.location.hostname || toggle.pathname !== window.location.pathname || !/#/.test(toggle.href)) return;
 
 			// Get an escaped version of the hash
-			var hash = escapeCharacters(decode(toggle.hash));
+			var hash = escapeCharacters(toggle.hash);
 
 			// Get the anchored element
 			var anchor = settings.topOnEmptyHash && hash === '#' ? document.documentElement : document.querySelector(hash);
@@ -561,7 +540,7 @@
 			// Get the anchor
 			var anchor = history.state.anchor;
 			if (anchor && anchor !== 0) {
-				anchor = document.querySelector(escapeCharacters(decode(history.state.anchor)));
+				anchor = document.querySelector(escapeCharacters(history.state.anchor));
 				if (!anchor) return;
 			}
 

From 1b07220a9d07eebdcf920e3fc4d235055684e3b7 Mon Sep 17 00:00:00 2001
From: cferdinandi <chris@gomakethings.com>
Date: Wed, 5 Dec 2018 16:48:57 -0500
Subject: [PATCH 23/51] Fixed compile bug

---
 dist/_closest.polyfill.js                     |  24 -
 dist/_closest.polyfill.min.js                 |   2 -
 dist/_customEvent.polyfill.js                 |  27 -
 dist/_customEvent.polyfill.min.js             |   2 -
 dist/_requestAnimationFrame.polyfill.js       |  41 -
 dist/_requestAnimationFrame.polyfill.min.js   |   2 -
 dist/smooth-scroll.js                         |   2 +-
 dist/smooth-scroll.min.js                     |   2 +-
 dist/smooth-scroll.polyfills.js               | 699 ++++++++++++++++++
 dist/smooth-scroll.polyfills.min.js           |   2 +
 package.json                                  |   2 +-
 .../{ => smooth-scroll}/_closest.polyfill.js  |   0
 .../_customEvent.polyfill.js                  |   0
 .../_requestAnimationFrame.polyfill.js        |   0
 src/js/{ => smooth-scroll}/smooth-scroll.js   |   0
 15 files changed, 704 insertions(+), 101 deletions(-)
 delete mode 100644 dist/_closest.polyfill.js
 delete mode 100644 dist/_closest.polyfill.min.js
 delete mode 100644 dist/_customEvent.polyfill.js
 delete mode 100644 dist/_customEvent.polyfill.min.js
 delete mode 100644 dist/_requestAnimationFrame.polyfill.js
 delete mode 100644 dist/_requestAnimationFrame.polyfill.min.js
 create mode 100755 dist/smooth-scroll.polyfills.js
 create mode 100755 dist/smooth-scroll.polyfills.min.js
 rename src/js/{ => smooth-scroll}/_closest.polyfill.js (100%)
 rename src/js/{ => smooth-scroll}/_customEvent.polyfill.js (100%)
 rename src/js/{ => smooth-scroll}/_requestAnimationFrame.polyfill.js (100%)
 rename src/js/{ => smooth-scroll}/smooth-scroll.js (100%)

diff --git a/dist/_closest.polyfill.js b/dist/_closest.polyfill.js
deleted file mode 100644
index 841a5fe..0000000
--- a/dist/_closest.polyfill.js
+++ /dev/null
@@ -1,24 +0,0 @@
-/*!
- * smooth-scroll v15.1.1
- * Animate scrolling to anchor links
- * (c) 2018 Chris Ferdinandi
- * MIT License
- * http://github.com/cferdinandi/smooth-scroll
- */
-
-/**
- * closest() polyfill
- * @link https://developer.mozilla.org/en-US/docs/Web/API/Element/closest#Polyfill
- */
-if (window.Element && !Element.prototype.closest) {
-	Element.prototype.closest = function(s) {
-		var matches = (this.document || this.ownerDocument).querySelectorAll(s),
-			i,
-			el = this;
-		do {
-			i = matches.length;
-			while (--i >= 0 && matches.item(i) !== el) {}
-		} while ((i < 0) && (el = el.parentElement));
-		return el;
-	};
-}
diff --git a/dist/_closest.polyfill.min.js b/dist/_closest.polyfill.min.js
deleted file mode 100644
index 511658c..0000000
--- a/dist/_closest.polyfill.min.js
+++ /dev/null
@@ -1,2 +0,0 @@
-/*! smooth-scroll v15.1.1 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
-window.Element&&!Element.prototype.closest&&(Element.prototype.closest=function(e){var t,o=(this.document||this.ownerDocument).querySelectorAll(e),n=this;do{for(t=o.length;0<=--t&&o.item(t)!==n;);}while(t<0&&(n=n.parentElement));return n});
\ No newline at end of file
diff --git a/dist/_customEvent.polyfill.js b/dist/_customEvent.polyfill.js
deleted file mode 100644
index 9eab3ec..0000000
--- a/dist/_customEvent.polyfill.js
+++ /dev/null
@@ -1,27 +0,0 @@
-/*!
- * smooth-scroll v15.1.1
- * Animate scrolling to anchor links
- * (c) 2018 Chris Ferdinandi
- * MIT License
- * http://github.com/cferdinandi/smooth-scroll
- */
-
-/**
- * CustomEvent() polyfill
- * https://developer.mozilla.org/en-US/docs/Web/API/CustomEvent/CustomEvent#Polyfill
- */
-(function () {
-
-	if (typeof window.CustomEvent === "function") return false;
-
-	function CustomEvent(event, params) {
-		params = params || { bubbles: false, cancelable: false, detail: undefined };
-		var evt = document.createEvent('CustomEvent');
-		evt.initCustomEvent(event, params.bubbles, params.cancelable, params.detail);
-		return evt;
-	}
-
-	CustomEvent.prototype = window.Event.prototype;
-
-	window.CustomEvent = CustomEvent;
-})();
\ No newline at end of file
diff --git a/dist/_customEvent.polyfill.min.js b/dist/_customEvent.polyfill.min.js
deleted file mode 100644
index 1146486..0000000
--- a/dist/_customEvent.polyfill.min.js
+++ /dev/null
@@ -1,2 +0,0 @@
-/*! smooth-scroll v15.1.1 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
-!(function(){if("function"==typeof window.CustomEvent)return;function t(t,e){e=e||{bubbles:!1,cancelable:!1,detail:void 0};var n=document.createEvent("CustomEvent");return n.initCustomEvent(t,e.bubbles,e.cancelable,e.detail),n}t.prototype=window.Event.prototype,window.CustomEvent=t})();
\ No newline at end of file
diff --git a/dist/_requestAnimationFrame.polyfill.js b/dist/_requestAnimationFrame.polyfill.js
deleted file mode 100644
index bbfe770..0000000
--- a/dist/_requestAnimationFrame.polyfill.js
+++ /dev/null
@@ -1,41 +0,0 @@
-/*!
- * smooth-scroll v15.1.1
- * Animate scrolling to anchor links
- * (c) 2018 Chris Ferdinandi
- * MIT License
- * http://github.com/cferdinandi/smooth-scroll
- */
-
-/**
- * requestAnimationFrame() polyfill
- * By Erik Möller. Fixes from Paul Irish and Tino Zijdel.
- * @link http://paulirish.com/2011/requestanimationframe-for-smart-animating/
- * @link http://my.opera.com/emoller/blog/2011/12/20/requestanimationframe-for-smart-er-animating
- * @license MIT
- */
-(function() {
-	var lastTime = 0;
-	var vendors = ['ms', 'moz', 'webkit', 'o'];
-	for(var x = 0; x < vendors.length && !window.requestAnimationFrame; ++x) {
-		window.requestAnimationFrame = window[vendors[x]+'RequestAnimationFrame'];
-		window.cancelAnimationFrame = window[vendors[x]+'CancelAnimationFrame'] ||
-		                              window[vendors[x]+'CancelRequestAnimationFrame'];
-	}
-
-	if (!window.requestAnimationFrame) {
-		window.requestAnimationFrame = function(callback, element) {
-			var currTime = new Date().getTime();
-			var timeToCall = Math.max(0, 16 - (currTime - lastTime));
-			var id = window.setTimeout((function() { callback(currTime + timeToCall); }),
-				timeToCall);
-			lastTime = currTime + timeToCall;
-			return id;
-		};
-	}
-
-	if (!window.cancelAnimationFrame) {
-		window.cancelAnimationFrame = function(id) {
-			clearTimeout(id);
-		};
-	}
-}());
diff --git a/dist/_requestAnimationFrame.polyfill.min.js b/dist/_requestAnimationFrame.polyfill.min.js
deleted file mode 100644
index 2eb047f..0000000
--- a/dist/_requestAnimationFrame.polyfill.min.js
+++ /dev/null
@@ -1,2 +0,0 @@
-/*! smooth-scroll v15.1.1 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
-!(function(){for(var t=0,n=["ms","moz","webkit","o"],i=0;i<n.length&&!window.requestAnimationFrame;++i)window.requestAnimationFrame=window[n[i]+"RequestAnimationFrame"],window.cancelAnimationFrame=window[n[i]+"CancelAnimationFrame"]||window[n[i]+"CancelRequestAnimationFrame"];window.requestAnimationFrame||(window.requestAnimationFrame=function(n,i){var e=(new Date).getTime(),a=Math.max(0,16-(e-t)),o=window.setTimeout((function(){n(e+a)}),a);return t=e+a,o}),window.cancelAnimationFrame||(window.cancelAnimationFrame=function(n){clearTimeout(n)})})();
\ No newline at end of file
diff --git a/dist/smooth-scroll.js b/dist/smooth-scroll.js
index 7b77c2d..4d7326c 100755
--- a/dist/smooth-scroll.js
+++ b/dist/smooth-scroll.js
@@ -1,5 +1,5 @@
 /*!
- * smooth-scroll v15.1.1
+ * smooth-scroll v15.1.2
  * Animate scrolling to anchor links
  * (c) 2018 Chris Ferdinandi
  * MIT License
diff --git a/dist/smooth-scroll.min.js b/dist/smooth-scroll.min.js
index b25a52b..c8d932e 100755
--- a/dist/smooth-scroll.min.js
+++ b/dist/smooth-scroll.min.js
@@ -1,2 +1,2 @@
-/*! smooth-scroll v15.1.1 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
+/*! smooth-scroll v15.1.2 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
 !(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(C){"use strict";var L={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,speedAsDuration:!1,durationMax:null,durationMin:null,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},H=function(){var n={};return Array.prototype.forEach.call(arguments,(function(e){for(var t in e){if(!e.hasOwnProperty(t))return;n[t]=e[t]}})),n},r=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,a=-1,r="",i=n.charCodeAt(0);++a<o;){if(0===(t=n.charCodeAt(a)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");1<=t&&t<=31||127==t||0===a&&48<=t&&t<=57||1===a&&48<=t&&t<=57&&45===i?r+="\\"+t.toString(16)+" ":r+=128<=t||45===t||95===t||48<=t&&t<=57||65<=t&&t<=90||97<=t&&t<=122?n.charAt(a):"\\"+n.charAt(a)}return"#"+r},q=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},x=function(e){return e?(t=e,parseInt(C.getComputedStyle(t).height,10)+e.offsetTop):0;var t},Q=function(e,t,n,o){if(t.emitEvents&&"function"==typeof C.CustomEvent){var a=new CustomEvent(e,{bubbles:!0,detail:{anchor:n,toggle:o}});document.dispatchEvent(a)}};return function(o,e){var I,a,M,A,w={};w.cancelScroll=function(e){cancelAnimationFrame(A),A=null,e||Q("scrollCancel",I)},w.animateScroll=function(i,s,e){var c=H(I||L,e||{}),u="[object Number]"===Object.prototype.toString.call(i),t=u||!i.tagName?null:i;if(u||t){var l=C.pageYOffset;c.header&&!M&&(M=document.querySelector(c.header));var n,o,a,d,r,f,m,h,p=x(M),g=u?i:(function(e,t,n,o){var a=0;if(e.offsetParent)for(;a+=e.offsetTop,e=e.offsetParent;);return a=Math.max(a-t-n,0),o&&(a=Math.min(a,q()-C.innerHeight)),a})(t,p,parseInt("function"==typeof c.offset?c.offset(i,s):c.offset,10),c.clip),y=g-l,v=q(),S=0,E=(n=y,a=(o=c).speedAsDuration?o.speed:Math.abs(n/1e3*o.speed),o.durationMax&&a>o.durationMax?o.durationMax:o.durationMin&&a<o.durationMin?o.durationMin:a),b=function(e,t){var n,o,a,r=C.pageYOffset;if(e==t||r==t||(l<t&&C.innerHeight+r)>=v)return w.cancelScroll(!0),o=t,a=u,0===(n=i)&&document.body.focus(),a||(n.focus(),document.activeElement!==n&&(n.setAttribute("tabindex","-1"),n.focus(),n.style.outline="none"),C.scrollTo(0,o)),Q("scrollStop",c,i,s),!(A=d=null)},O=function(e){var t,n,o;d||(d=e),r=(S+=e-d)/parseInt(E,10),f=l+y*(n=r=1<r?1:r,"easeInQuad"===(t=c).easing&&(o=n*n),"easeOutQuad"===t.easing&&(o=n*(2-n)),"easeInOutQuad"===t.easing&&(o=n<.5?2*n*n:(4-2*n)*n-1),"easeInCubic"===t.easing&&(o=n*n*n),"easeOutCubic"===t.easing&&(o=--n*n*n+1),"easeInOutCubic"===t.easing&&(o=n<.5?4*n*n*n:(n-1)*(2*n-2)*(2*n-2)+1),"easeInQuart"===t.easing&&(o=n*n*n*n),"easeOutQuart"===t.easing&&(o=1- --n*n*n*n),"easeInOutQuart"===t.easing&&(o=n<.5?8*n*n*n*n:1-8*--n*n*n*n),"easeInQuint"===t.easing&&(o=n*n*n*n*n),"easeOutQuint"===t.easing&&(o=1+--n*n*n*n*n),"easeInOutQuint"===t.easing&&(o=n<.5?16*n*n*n*n*n:1+16*--n*n*n*n*n),t.customEasing&&(o=t.customEasing(n)),o||n),C.scrollTo(0,Math.floor(f)),b(f,g)||(A=C.requestAnimationFrame(O),d=e)};0===C.pageYOffset&&C.scrollTo(0,0),m=i,h=c,u||history.pushState&&h.updateURL&&history.pushState({smoothScroll:JSON.stringify(h),anchor:m.id},document.title,m===document.documentElement?"#top":"#"+m.id),Q("scrollStart",c,i,s),w.cancelScroll(!0),C.requestAnimationFrame(O)}};var t=function(e){if(!("matchMedia"in C&&C.matchMedia("(prefers-reduced-motion)").matches)&&0===e.button&&!e.metaKey&&!e.ctrlKey&&"closest"in e.target&&(a=e.target.closest(o))&&"a"===a.tagName.toLowerCase()&&!e.target.closest(I.ignore)&&a.hostname===C.location.hostname&&a.pathname===C.location.pathname&&/#/.test(a.href)){var t=r(a.hash),n=I.topOnEmptyHash&&"#"===t?document.documentElement:document.querySelector(t);(n=n||"#top"!==t?n:document.documentElement)&&(e.preventDefault(),(function(e){if(history.replaceState&&e.updateURL&&!history.state){var t=C.location.hash;t=t||C.pageYOffset,history.replaceState({smoothScroll:JSON.stringify(e),anchor:t||C.pageYOffset},document.title,t||C.location.href)}})(I),w.animateScroll(n,a))}},n=function(e){if(null!==history.state&&history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(I)){var t=history.state.anchor;t&&0!==t&&!(t=document.querySelector(r(history.state.anchor)))||w.animateScroll(t,null,{updateURL:!1})}};return w.destroy=function(){I&&(document.removeEventListener("click",t,!1),C.removeEventListener("popstate",n,!1),w.cancelScroll(),A=M=a=I=null)},w.init=function(e){if(!("querySelector"in document&&"addEventListener"in C&&"requestAnimationFrame"in C&&"closest"in C.Element.prototype))throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";w.destroy(),I=H(L,e||{}),M=I.header?document.querySelector(I.header):null,document.addEventListener("click",t,!1),I.updateURL&&I.popstate&&C.addEventListener("popstate",n,!1)},w.init(e),w}}));
\ No newline at end of file
diff --git a/dist/smooth-scroll.polyfills.js b/dist/smooth-scroll.polyfills.js
new file mode 100755
index 0000000..11bfda0
--- /dev/null
+++ b/dist/smooth-scroll.polyfills.js
@@ -0,0 +1,699 @@
+/*!
+ * smooth-scroll v15.1.2
+ * Animate scrolling to anchor links
+ * (c) 2018 Chris Ferdinandi
+ * MIT License
+ * http://github.com/cferdinandi/smooth-scroll
+ */
+
+/**
+ * closest() polyfill
+ * @link https://developer.mozilla.org/en-US/docs/Web/API/Element/closest#Polyfill
+ */
+if (window.Element && !Element.prototype.closest) {
+	Element.prototype.closest = function(s) {
+		var matches = (this.document || this.ownerDocument).querySelectorAll(s),
+			i,
+			el = this;
+		do {
+			i = matches.length;
+			while (--i >= 0 && matches.item(i) !== el) {}
+		} while ((i < 0) && (el = el.parentElement));
+		return el;
+	};
+}
+
+/**
+ * CustomEvent() polyfill
+ * https://developer.mozilla.org/en-US/docs/Web/API/CustomEvent/CustomEvent#Polyfill
+ */
+(function () {
+
+	if (typeof window.CustomEvent === "function") return false;
+
+	function CustomEvent(event, params) {
+		params = params || { bubbles: false, cancelable: false, detail: undefined };
+		var evt = document.createEvent('CustomEvent');
+		evt.initCustomEvent(event, params.bubbles, params.cancelable, params.detail);
+		return evt;
+	}
+
+	CustomEvent.prototype = window.Event.prototype;
+
+	window.CustomEvent = CustomEvent;
+})();
+/**
+ * requestAnimationFrame() polyfill
+ * By Erik Möller. Fixes from Paul Irish and Tino Zijdel.
+ * @link http://paulirish.com/2011/requestanimationframe-for-smart-animating/
+ * @link http://my.opera.com/emoller/blog/2011/12/20/requestanimationframe-for-smart-er-animating
+ * @license MIT
+ */
+(function() {
+	var lastTime = 0;
+	var vendors = ['ms', 'moz', 'webkit', 'o'];
+	for(var x = 0; x < vendors.length && !window.requestAnimationFrame; ++x) {
+		window.requestAnimationFrame = window[vendors[x]+'RequestAnimationFrame'];
+		window.cancelAnimationFrame = window[vendors[x]+'CancelAnimationFrame'] ||
+		                              window[vendors[x]+'CancelRequestAnimationFrame'];
+	}
+
+	if (!window.requestAnimationFrame) {
+		window.requestAnimationFrame = function(callback, element) {
+			var currTime = new Date().getTime();
+			var timeToCall = Math.max(0, 16 - (currTime - lastTime));
+			var id = window.setTimeout((function() { callback(currTime + timeToCall); }),
+				timeToCall);
+			lastTime = currTime + timeToCall;
+			return id;
+		};
+	}
+
+	if (!window.cancelAnimationFrame) {
+		window.cancelAnimationFrame = function(id) {
+			clearTimeout(id);
+		};
+	}
+}());
+
+(function (root, factory) {
+	if (typeof define === 'function' && define.amd) {
+		define([], (function () {
+			return factory(root);
+		}));
+	} else if (typeof exports === 'object') {
+		module.exports = factory(root);
+	} else {
+		root.SmoothScroll = factory(root);
+	}
+})(typeof global !== 'undefined' ? global : typeof window !== 'undefined' ? window : this, (function (window) {
+
+	'use strict';
+
+	//
+	// Default settings
+	//
+
+	var defaults = {
+
+		// Selectors
+		ignore: '[data-scroll-ignore]',
+		header: null,
+		topOnEmptyHash: true,
+
+		// Speed & Duration
+		speed: 500,
+		speedAsDuration: false,
+		durationMax: null,
+		durationMin: null,
+		clip: true,
+		offset: 0,
+
+		// Easing
+		easing: 'easeInOutCubic',
+		customEasing: null,
+
+		// History
+		updateURL: true,
+		popstate: true,
+
+		// Custom Events
+		emitEvents: true
+
+	};
+
+
+	//
+	// Utility Methods
+	//
+
+	/**
+	 * Check if browser supports required methods
+	 * @return {Boolean} Returns true if all required methods are supported
+	 */
+	var supports = function () {
+		return (
+			'querySelector' in document &&
+			'addEventListener' in window &&
+			'requestAnimationFrame' in window &&
+			'closest' in window.Element.prototype
+		);
+	};
+
+	/**
+	 * Merge two or more objects together.
+	 * @param   {Object}   objects  The objects to merge together
+	 * @returns {Object}            Merged values of defaults and options
+	 */
+	var extend = function () {
+		var merged = {};
+		Array.prototype.forEach.call(arguments, (function (obj) {
+			for (var key in obj) {
+				if (!obj.hasOwnProperty(key)) return;
+				merged[key] = obj[key];
+			}
+		}));
+		return merged;
+	};
+
+	/**
+	 * Check to see if user prefers reduced motion
+	 * @param  {Object} settings Script settings
+	 */
+	var reduceMotion = function (settings) {
+		if ('matchMedia' in window && window.matchMedia('(prefers-reduced-motion)').matches) {
+			return true;
+		}
+		return false;
+	};
+
+	/**
+	 * Get the height of an element.
+	 * @param  {Node} elem The element to get the height of
+	 * @return {Number}    The element's height in pixels
+	 */
+	var getHeight = function (elem) {
+		return parseInt(window.getComputedStyle(elem).height, 10);
+	};
+
+	/**
+	 * Escape special characters for use with querySelector
+	 * @author Mathias Bynens
+	 * @link https://github.com/mathiasbynens/CSS.escape
+	 * @param {String} id The anchor ID to escape
+	 */
+	var escapeCharacters = function (id) {
+
+		// Remove leading hash
+		if (id.charAt(0) === '#') {
+			id = id.substr(1);
+		}
+
+		var string = String(id);
+		var length = string.length;
+		var index = -1;
+		var codeUnit;
+		var result = '';
+		var firstCodeUnit = string.charCodeAt(0);
+		while (++index < length) {
+			codeUnit = string.charCodeAt(index);
+			// Note: there’s no need to special-case astral symbols, surrogate
+			// pairs, or lone surrogates.
+
+			// If the character is NULL (U+0000), then throw an
+			// `InvalidCharacterError` exception and terminate these steps.
+			if (codeUnit === 0x0000) {
+				throw new InvalidCharacterError(
+					'Invalid character: the input contains U+0000.'
+				);
+			}
+
+			if (
+				// If the character is in the range [\1-\1F] (U+0001 to U+001F) or is
+				// U+007F, […]
+				(codeUnit >= 0x0001 && codeUnit <= 0x001F) || codeUnit == 0x007F ||
+				// If the character is the first character and is in the range [0-9]
+				// (U+0030 to U+0039), […]
+				(index === 0 && codeUnit >= 0x0030 && codeUnit <= 0x0039) ||
+				// If the character is the second character and is in the range [0-9]
+				// (U+0030 to U+0039) and the first character is a `-` (U+002D), […]
+				(
+					index === 1 &&
+					codeUnit >= 0x0030 && codeUnit <= 0x0039 &&
+					firstCodeUnit === 0x002D
+				)
+			) {
+				// http://dev.w3.org/csswg/cssom/#escape-a-character-as-code-point
+				result += '\\' + codeUnit.toString(16) + ' ';
+				continue;
+			}
+
+			// If the character is not handled by one of the above rules and is
+			// greater than or equal to U+0080, is `-` (U+002D) or `_` (U+005F), or
+			// is in one of the ranges [0-9] (U+0030 to U+0039), [A-Z] (U+0041 to
+			// U+005A), or [a-z] (U+0061 to U+007A), […]
+			if (
+				codeUnit >= 0x0080 ||
+				codeUnit === 0x002D ||
+				codeUnit === 0x005F ||
+				codeUnit >= 0x0030 && codeUnit <= 0x0039 ||
+				codeUnit >= 0x0041 && codeUnit <= 0x005A ||
+				codeUnit >= 0x0061 && codeUnit <= 0x007A
+			) {
+				// the character itself
+				result += string.charAt(index);
+				continue;
+			}
+
+			// Otherwise, the escaped character.
+			// http://dev.w3.org/csswg/cssom/#escape-a-character
+			result += '\\' + string.charAt(index);
+
+		}
+
+		// Return sanitized hash
+		return '#' + result;
+
+	};
+
+	/**
+	 * Calculate the easing pattern
+	 * @link https://gist.github.com/gre/1650294
+	 * @param {String} type Easing pattern
+	 * @param {Number} time Time animation should take to complete
+	 * @returns {Number}
+	 */
+	var easingPattern = function (settings, time) {
+		var pattern;
+
+		// Default Easing Patterns
+		if (settings.easing === 'easeInQuad') pattern = time * time; // accelerating from zero velocity
+		if (settings.easing === 'easeOutQuad') pattern = time * (2 - time); // decelerating to zero velocity
+		if (settings.easing === 'easeInOutQuad') pattern = time < 0.5 ? 2 * time * time : -1 + (4 - 2 * time) * time; // acceleration until halfway, then deceleration
+		if (settings.easing === 'easeInCubic') pattern = time * time * time; // accelerating from zero velocity
+		if (settings.easing === 'easeOutCubic') pattern = (--time) * time * time + 1; // decelerating to zero velocity
+		if (settings.easing === 'easeInOutCubic') pattern = time < 0.5 ? 4 * time * time * time : (time - 1) * (2 * time - 2) * (2 * time - 2) + 1; // acceleration until halfway, then deceleration
+		if (settings.easing === 'easeInQuart') pattern = time * time * time * time; // accelerating from zero velocity
+		if (settings.easing === 'easeOutQuart') pattern = 1 - (--time) * time * time * time; // decelerating to zero velocity
+		if (settings.easing === 'easeInOutQuart') pattern = time < 0.5 ? 8 * time * time * time * time : 1 - 8 * (--time) * time * time * time; // acceleration until halfway, then deceleration
+		if (settings.easing === 'easeInQuint') pattern = time * time * time * time * time; // accelerating from zero velocity
+		if (settings.easing === 'easeOutQuint') pattern = 1 + (--time) * time * time * time * time; // decelerating to zero velocity
+		if (settings.easing === 'easeInOutQuint') pattern = time < 0.5 ? 16 * time * time * time * time * time : 1 + 16 * (--time) * time * time * time * time; // acceleration until halfway, then deceleration
+
+		// Custom Easing Patterns
+		if (!!settings.customEasing) pattern = settings.customEasing(time);
+
+		return pattern || time; // no easing, no acceleration
+	};
+
+	/**
+	 * Determine the document's height
+	 * @returns {Number}
+	 */
+	var getDocumentHeight = function () {
+		return Math.max(
+			document.body.scrollHeight, document.documentElement.scrollHeight,
+			document.body.offsetHeight, document.documentElement.offsetHeight,
+			document.body.clientHeight, document.documentElement.clientHeight
+		);
+	};
+
+	/**
+	 * Calculate how far to scroll
+	 * Clip support added by robjtede - https://github.com/cferdinandi/smooth-scroll/issues/405
+	 * @param {Element} anchor       The anchor element to scroll to
+	 * @param {Number}  headerHeight Height of a fixed header, if any
+	 * @param {Number}  offset       Number of pixels by which to offset scroll
+	 * @param {Boolean} clip         If true, adjust scroll distance to prevent abrupt stops near the bottom of the page
+	 * @returns {Number}
+	 */
+	var getEndLocation = function (anchor, headerHeight, offset, clip) {
+		var location = 0;
+		if (anchor.offsetParent) {
+			do {
+				location += anchor.offsetTop;
+				anchor = anchor.offsetParent;
+			} while (anchor);
+		}
+		location = Math.max(location - headerHeight - offset, 0);
+		if (clip) {
+			location = Math.min(location, getDocumentHeight() - window.innerHeight);
+		}
+ 		return location;
+	};
+
+	/**
+	 * Get the height of the fixed header
+	 * @param  {Node}   header The header
+	 * @return {Number}        The height of the header
+	 */
+	var getHeaderHeight = function (header) {
+		return !header ? 0 : (getHeight(header) + header.offsetTop);
+	};
+
+	/**
+	 * Calculate the speed to use for the animation
+	 * @param  {Number} distance The distance to travel
+	 * @param  {Object} settings The plugin settings
+	 * @return {Number}          How fast to animate
+	 */
+	var getSpeed = function (distance, settings) {
+		var speed = settings.speedAsDuration ? settings.speed : Math.abs(distance / 1000 * settings.speed);
+		if (settings.durationMax && speed > settings.durationMax) return settings.durationMax;
+		if (settings.durationMin && speed < settings.durationMin) return settings.durationMin;
+		return speed;
+	};
+
+	var setHistory = function (options) {
+
+		// Make sure this should run
+		if (!history.replaceState || !options.updateURL || history.state) return;
+
+		// Get the hash to use
+		var hash = window.location.hash;
+		hash = hash ? hash : window.pageYOffset;
+
+		// Set a default history
+		history.replaceState(
+			{
+				smoothScroll: JSON.stringify(options),
+				anchor: hash ? hash : window.pageYOffset
+			},
+			document.title,
+			hash ? hash : window.location.href
+		);
+
+	};
+
+	/**
+	 * Update the URL
+	 * @param  {Node}    anchor  The anchor that was scrolled to
+	 * @param  {Boolean} isNum   If true, anchor is a number
+	 * @param  {Object}  options Settings for Smooth Scroll
+	 */
+	var updateURL = function (anchor, isNum, options) {
+
+		// Bail if the anchor is a number
+		if (isNum) return;
+
+		// Verify that pushState is supported and the updateURL option is enabled
+		if (!history.pushState || !options.updateURL) return;
+
+		// Update URL
+		history.pushState(
+			{
+				smoothScroll: JSON.stringify(options),
+				anchor: anchor.id
+			},
+			document.title,
+			anchor === document.documentElement ? '#top' : '#' + anchor.id
+		);
+
+	};
+
+	/**
+	 * Bring the anchored element into focus
+	 * @param {Node}     anchor      The anchor element
+	 * @param {Number}   endLocation The end location to scroll to
+	 * @param {Boolean}  isNum       If true, scroll is to a position rather than an element
+	 */
+	var adjustFocus = function (anchor, endLocation, isNum) {
+
+		// Is scrolling to top of page, blur
+		if (anchor === 0) {
+			document.body.focus();
+		}
+
+		// Don't run if scrolling to a number on the page
+		if (isNum) return;
+
+		// Otherwise, bring anchor element into focus
+		anchor.focus();
+		if (document.activeElement !== anchor) {
+			anchor.setAttribute('tabindex', '-1');
+			anchor.focus();
+			anchor.style.outline = 'none';
+		}
+		window.scrollTo(0 , endLocation);
+
+	};
+
+	/**
+	 * Emit a custom event
+	 * @param  {String} type    The event type
+	 * @param  {Object} options The settings object
+	 * @param  {Node}   anchor  The anchor element
+	 * @param  {Node}   toggle  The toggle element
+	 */
+	var emitEvent = function (type, options, anchor, toggle) {
+		if (!options.emitEvents || typeof window.CustomEvent !== 'function') return;
+		var event = new CustomEvent(type, {
+			bubbles: true,
+			detail: {
+				anchor: anchor,
+				toggle: toggle
+			}
+		});
+		document.dispatchEvent(event);
+	};
+
+
+	//
+	// SmoothScroll Constructor
+	//
+
+	var SmoothScroll = function (selector, options) {
+
+		//
+		// Variables
+		//
+
+		var smoothScroll = {}; // Object for public APIs
+		var settings, anchor, toggle, fixedHeader, eventTimeout, animationInterval;
+
+
+		//
+		// Methods
+		//
+
+		/**
+		 * Cancel a scroll-in-progress
+		 */
+		smoothScroll.cancelScroll = function (noEvent) {
+			cancelAnimationFrame(animationInterval);
+			animationInterval = null;
+			if (noEvent) return;
+			emitEvent('scrollCancel', settings);
+		};
+
+		/**
+		 * Start/stop the scrolling animation
+		 * @param {Node|Number} anchor  The element or position to scroll to
+		 * @param {Element}     toggle  The element that toggled the scroll event
+		 * @param {Object}      options
+		 */
+		smoothScroll.animateScroll = function (anchor, toggle, options) {
+
+			// Local settings
+			var _settings = extend(settings || defaults, options || {}); // Merge user options with defaults
+
+			// Selectors and variables
+			var isNum = Object.prototype.toString.call(anchor) === '[object Number]' ? true : false;
+			var anchorElem = isNum || !anchor.tagName ? null : anchor;
+			if (!isNum && !anchorElem) return;
+			var startLocation = window.pageYOffset; // Current location on the page
+			if (_settings.header && !fixedHeader) {
+				// Get the fixed header if not already set
+				fixedHeader = document.querySelector(_settings.header);
+			}
+			var headerHeight = getHeaderHeight(fixedHeader);
+			var endLocation = isNum ? anchor : getEndLocation(anchorElem, headerHeight, parseInt((typeof _settings.offset === 'function' ? _settings.offset(anchor, toggle) : _settings.offset), 10), _settings.clip); // Location to scroll to
+			var distance = endLocation - startLocation; // distance to travel
+			var documentHeight = getDocumentHeight();
+			var timeLapsed = 0;
+			var speed = getSpeed(distance, _settings);
+			var start, percentage, position;
+
+			/**
+			 * Stop the scroll animation when it reaches its target (or the bottom/top of page)
+			 * @param {Number} position Current position on the page
+			 * @param {Number} endLocation Scroll to location
+			 * @param {Number} animationInterval How much to scroll on this loop
+			 */
+			var stopAnimateScroll = function (position, endLocation) {
+
+				// Get the current location
+				var currentLocation = window.pageYOffset;
+
+				// Check if the end location has been reached yet (or we've hit the end of the document)
+				if (position == endLocation || currentLocation == endLocation || ((startLocation < endLocation && window.innerHeight + currentLocation) >= documentHeight)) {
+
+					// Clear the animation timer
+					smoothScroll.cancelScroll(true);
+
+					// Bring the anchored element into focus
+					adjustFocus(anchor, endLocation, isNum);
+
+					// Emit a custom event
+					emitEvent('scrollStop', _settings, anchor, toggle);
+
+					// Reset start
+					start = null;
+					animationInterval = null;
+
+					return true;
+
+				}
+			};
+
+			/**
+			 * Loop scrolling animation
+			 */
+			var loopAnimateScroll = function (timestamp) {
+				if (!start) { start = timestamp; }
+				timeLapsed += timestamp - start;
+				percentage = (timeLapsed / parseInt(speed, 10));
+				percentage = (percentage > 1) ? 1 : percentage;
+				position = startLocation + (distance * easingPattern(_settings, percentage));
+				window.scrollTo(0, Math.floor(position));
+				if (!stopAnimateScroll(position, endLocation)) {
+					animationInterval = window.requestAnimationFrame(loopAnimateScroll);
+					start = timestamp;
+				}
+			};
+
+			/**
+			 * Reset position to fix weird iOS bug
+			 * @link https://github.com/cferdinandi/smooth-scroll/issues/45
+			 */
+			if (window.pageYOffset === 0) {
+				window.scrollTo(0, 0);
+			}
+
+			// Update the URL
+			updateURL(anchor, isNum, _settings);
+
+			// Emit a custom event
+			emitEvent('scrollStart', _settings, anchor, toggle);
+
+			// Start scrolling animation
+			smoothScroll.cancelScroll(true);
+			window.requestAnimationFrame(loopAnimateScroll);
+
+		};
+
+		/**
+		 * If smooth scroll element clicked, animate scroll
+		 */
+		var clickHandler = function (event) {
+
+			// Don't run if the user prefers reduced motion
+			if (reduceMotion(settings)) return;
+
+			// Don't run if right-click or command/control + click
+			if (event.button !== 0 || event.metaKey || event.ctrlKey) return;
+
+			// Check if event.target has closest() method
+			// By @totegi - https://github.com/cferdinandi/smooth-scroll/pull/401/
+			if(!('closest' in event.target))return;
+
+			// Check if a smooth scroll link was clicked
+			toggle = event.target.closest(selector);
+			if (!toggle || toggle.tagName.toLowerCase() !== 'a' || event.target.closest(settings.ignore)) return;
+
+			// Only run if link is an anchor and points to the current page
+			if (toggle.hostname !== window.location.hostname || toggle.pathname !== window.location.pathname || !/#/.test(toggle.href)) return;
+
+			// Get an escaped version of the hash
+			var hash = escapeCharacters(toggle.hash);
+
+			// Get the anchored element
+			var anchor = settings.topOnEmptyHash && hash === '#' ? document.documentElement : document.querySelector(hash);
+			anchor = !anchor && hash === '#top' ? document.documentElement : anchor;
+
+			// If anchored element exists, scroll to it
+			if (!anchor) return;
+			event.preventDefault();
+			setHistory(settings);
+			smoothScroll.animateScroll(anchor, toggle);
+
+		};
+
+		/**
+		 * Animate scroll on popstate events
+		 */
+		var popstateHandler = function (event) {
+
+			// Stop if history.state doesn't exist (ex. if clicking on a broken anchor link).
+			// fixes `Cannot read property 'smoothScroll' of null` error getting thrown.
+			if (history.state === null) return;
+
+			// Only run if state is a popstate record for this instantiation
+			if (!history.state.smoothScroll || history.state.smoothScroll !== JSON.stringify(settings)) return;
+
+			// Only run if state includes an anchor
+
+			// if (!history.state.anchor && history.state.anchor !== 0) return;
+
+			// Get the anchor
+			var anchor = history.state.anchor;
+			if (anchor && anchor !== 0) {
+				anchor = document.querySelector(escapeCharacters(history.state.anchor));
+				if (!anchor) return;
+			}
+
+			// Animate scroll to anchor link
+			smoothScroll.animateScroll(anchor, null, {updateURL: false});
+
+		};
+
+		/**
+		 * Destroy the current initialization.
+		 */
+		smoothScroll.destroy = function () {
+
+			// If plugin isn't already initialized, stop
+			if (!settings) return;
+
+			// Remove event listeners
+			document.removeEventListener('click', clickHandler, false);
+			window.removeEventListener('popstate', popstateHandler, false);
+
+			// Cancel any scrolls-in-progress
+			smoothScroll.cancelScroll();
+
+			// Reset variables
+			settings = null;
+			anchor = null;
+			toggle = null;
+			fixedHeader = null;
+			eventTimeout = null;
+			animationInterval = null;
+
+		};
+
+		/**
+		 * Initialize Smooth Scroll
+		 * @param {Object} options User settings
+		 */
+		smoothScroll.init = function (options) {
+
+			// feature test
+			if (!supports()) throw 'Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.';
+
+			// Destroy any existing initializations
+			smoothScroll.destroy();
+
+			// Selectors and variables
+			settings = extend(defaults, options || {}); // Merge user options with defaults
+			fixedHeader = settings.header ? document.querySelector(settings.header) : null; // Get the fixed header
+
+			// When a toggle is clicked, run the click handler
+			document.addEventListener('click', clickHandler, false);
+
+			// If updateURL and popState are enabled, listen for pop events
+			if (settings.updateURL && settings.popstate) {
+				window.addEventListener('popstate', popstateHandler, false);
+			}
+
+		};
+
+
+		//
+		// Initialize plugin
+		//
+
+		smoothScroll.init(options);
+
+
+		//
+		// Public APIs
+		//
+
+		return smoothScroll;
+
+	};
+
+	return SmoothScroll;
+
+}));
diff --git a/dist/smooth-scroll.polyfills.min.js b/dist/smooth-scroll.polyfills.min.js
new file mode 100755
index 0000000..743d01c
--- /dev/null
+++ b/dist/smooth-scroll.polyfills.min.js
@@ -0,0 +1,2 @@
+/*! smooth-scroll v15.1.2 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
+window.Element&&!Element.prototype.closest&&(Element.prototype.closest=function(e){var t,n=(this.document||this.ownerDocument).querySelectorAll(e),o=this;do{for(t=n.length;0<=--t&&n.item(t)!==o;);}while(t<0&&(o=o.parentElement));return o}),(function(){if("function"==typeof window.CustomEvent)return;function e(e,t){t=t||{bubbles:!1,cancelable:!1,detail:void 0};var n=document.createEvent("CustomEvent");return n.initCustomEvent(e,t.bubbles,t.cancelable,t.detail),n}e.prototype=window.Event.prototype,window.CustomEvent=e})(),(function(){for(var i=0,e=["ms","moz","webkit","o"],t=0;t<e.length&&!window.requestAnimationFrame;++t)window.requestAnimationFrame=window[e[t]+"RequestAnimationFrame"],window.cancelAnimationFrame=window[e[t]+"CancelAnimationFrame"]||window[e[t]+"CancelRequestAnimationFrame"];window.requestAnimationFrame||(window.requestAnimationFrame=function(e,t){var n=(new Date).getTime(),o=Math.max(0,16-(n-i)),a=window.setTimeout((function(){e(n+o)}),o);return i=n+o,a}),window.cancelAnimationFrame||(window.cancelAnimationFrame=function(e){clearTimeout(e)})})(),(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(M){"use strict";var I={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,speedAsDuration:!1,durationMax:null,durationMin:null,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},F=function(){var n={};return Array.prototype.forEach.call(arguments,(function(e){for(var t in e){if(!e.hasOwnProperty(t))return;n[t]=e[t]}})),n},i=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,a=-1,i="",r=n.charCodeAt(0);++a<o;){if(0===(t=n.charCodeAt(a)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");1<=t&&t<=31||127==t||0===a&&48<=t&&t<=57||1===a&&48<=t&&t<=57&&45===r?i+="\\"+t.toString(16)+" ":i+=128<=t||45===t||95===t||48<=t&&t<=57||65<=t&&t<=90||97<=t&&t<=122?n.charAt(a):"\\"+n.charAt(a)}return"#"+i},L=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},x=function(e){return e?(t=e,parseInt(M.getComputedStyle(t).height,10)+e.offsetTop):0;var t},H=function(e,t,n,o){if(t.emitEvents&&"function"==typeof M.CustomEvent){var a=new CustomEvent(e,{bubbles:!0,detail:{anchor:n,toggle:o}});document.dispatchEvent(a)}};return function(o,e){var A,a,O,C,q={};q.cancelScroll=function(e){cancelAnimationFrame(C),C=null,e||H("scrollCancel",A)},q.animateScroll=function(r,c,e){var s=F(A||I,e||{}),u="[object Number]"===Object.prototype.toString.call(r),t=u||!r.tagName?null:r;if(u||t){var l=M.pageYOffset;s.header&&!O&&(O=document.querySelector(s.header));var n,o,a,m,i,d,f,h,p=x(O),g=u?r:(function(e,t,n,o){var a=0;if(e.offsetParent)for(;a+=e.offsetTop,e=e.offsetParent;);return a=Math.max(a-t-n,0),o&&(a=Math.min(a,L()-M.innerHeight)),a})(t,p,parseInt("function"==typeof s.offset?s.offset(r,c):s.offset,10),s.clip),y=g-l,w=L(),v=0,E=(n=y,a=(o=s).speedAsDuration?o.speed:Math.abs(n/1e3*o.speed),o.durationMax&&a>o.durationMax?o.durationMax:o.durationMin&&a<o.durationMin?o.durationMin:a),S=function(e,t){var n,o,a,i=M.pageYOffset;if(e==t||i==t||(l<t&&M.innerHeight+i)>=w)return q.cancelScroll(!0),o=t,a=u,0===(n=r)&&document.body.focus(),a||(n.focus(),document.activeElement!==n&&(n.setAttribute("tabindex","-1"),n.focus(),n.style.outline="none"),M.scrollTo(0,o)),H("scrollStop",s,r,c),!(C=m=null)},b=function(e){var t,n,o;m||(m=e),i=(v+=e-m)/parseInt(E,10),d=l+y*(n=i=1<i?1:i,"easeInQuad"===(t=s).easing&&(o=n*n),"easeOutQuad"===t.easing&&(o=n*(2-n)),"easeInOutQuad"===t.easing&&(o=n<.5?2*n*n:(4-2*n)*n-1),"easeInCubic"===t.easing&&(o=n*n*n),"easeOutCubic"===t.easing&&(o=--n*n*n+1),"easeInOutCubic"===t.easing&&(o=n<.5?4*n*n*n:(n-1)*(2*n-2)*(2*n-2)+1),"easeInQuart"===t.easing&&(o=n*n*n*n),"easeOutQuart"===t.easing&&(o=1- --n*n*n*n),"easeInOutQuart"===t.easing&&(o=n<.5?8*n*n*n*n:1-8*--n*n*n*n),"easeInQuint"===t.easing&&(o=n*n*n*n*n),"easeOutQuint"===t.easing&&(o=1+--n*n*n*n*n),"easeInOutQuint"===t.easing&&(o=n<.5?16*n*n*n*n*n:1+16*--n*n*n*n*n),t.customEasing&&(o=t.customEasing(n)),o||n),M.scrollTo(0,Math.floor(d)),S(d,g)||(C=M.requestAnimationFrame(b),m=e)};0===M.pageYOffset&&M.scrollTo(0,0),f=r,h=s,u||history.pushState&&h.updateURL&&history.pushState({smoothScroll:JSON.stringify(h),anchor:f.id},document.title,f===document.documentElement?"#top":"#"+f.id),H("scrollStart",s,r,c),q.cancelScroll(!0),M.requestAnimationFrame(b)}};var t=function(e){if(!("matchMedia"in M&&M.matchMedia("(prefers-reduced-motion)").matches)&&0===e.button&&!e.metaKey&&!e.ctrlKey&&"closest"in e.target&&(a=e.target.closest(o))&&"a"===a.tagName.toLowerCase()&&!e.target.closest(A.ignore)&&a.hostname===M.location.hostname&&a.pathname===M.location.pathname&&/#/.test(a.href)){var t=i(a.hash),n=A.topOnEmptyHash&&"#"===t?document.documentElement:document.querySelector(t);(n=n||"#top"!==t?n:document.documentElement)&&(e.preventDefault(),(function(e){if(history.replaceState&&e.updateURL&&!history.state){var t=M.location.hash;t=t||M.pageYOffset,history.replaceState({smoothScroll:JSON.stringify(e),anchor:t||M.pageYOffset},document.title,t||M.location.href)}})(A),q.animateScroll(n,a))}},n=function(e){if(null!==history.state&&history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(A)){var t=history.state.anchor;t&&0!==t&&!(t=document.querySelector(i(history.state.anchor)))||q.animateScroll(t,null,{updateURL:!1})}};return q.destroy=function(){A&&(document.removeEventListener("click",t,!1),M.removeEventListener("popstate",n,!1),q.cancelScroll(),C=O=a=A=null)},q.init=function(e){if(!("querySelector"in document&&"addEventListener"in M&&"requestAnimationFrame"in M&&"closest"in M.Element.prototype))throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";q.destroy(),A=F(I,e||{}),O=A.header?document.querySelector(A.header):null,document.addEventListener("click",t,!1),A.updateURL&&A.popstate&&M.addEventListener("popstate",n,!1)},q.init(e),q}}));
\ No newline at end of file
diff --git a/package.json b/package.json
index f5d4e70..84b754c 100755
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
 	"name": "smooth-scroll",
-	"version": "15.1.1",
+	"version": "15.1.2",
 	"description": "Animate scrolling to anchor links",
 	"main": "./dist/smooth-scroll.polyfills.min.js",
 	"author": {
diff --git a/src/js/_closest.polyfill.js b/src/js/smooth-scroll/_closest.polyfill.js
similarity index 100%
rename from src/js/_closest.polyfill.js
rename to src/js/smooth-scroll/_closest.polyfill.js
diff --git a/src/js/_customEvent.polyfill.js b/src/js/smooth-scroll/_customEvent.polyfill.js
similarity index 100%
rename from src/js/_customEvent.polyfill.js
rename to src/js/smooth-scroll/_customEvent.polyfill.js
diff --git a/src/js/_requestAnimationFrame.polyfill.js b/src/js/smooth-scroll/_requestAnimationFrame.polyfill.js
similarity index 100%
rename from src/js/_requestAnimationFrame.polyfill.js
rename to src/js/smooth-scroll/_requestAnimationFrame.polyfill.js
diff --git a/src/js/smooth-scroll.js b/src/js/smooth-scroll/smooth-scroll.js
similarity index 100%
rename from src/js/smooth-scroll.js
rename to src/js/smooth-scroll/smooth-scroll.js

From 205a91aaf1bfd37cf59e9a2ba4182f6c2b0d24b5 Mon Sep 17 00:00:00 2001
From: cferdinandi <chris@gomakethings.com>
Date: Tue, 18 Dec 2018 16:13:06 -0500
Subject: [PATCH 24/51] v15.1.3 Fixes
 https://github.com/cferdinandi/smooth-scroll/issues/454. When speed is `0`,
 Nan/Infinity value was breaking calculations. This forces the number to 0 in
 those situations.

---
 dist/smooth-scroll.js                    |   9 +-
 dist/smooth-scroll.min.js                |   4 +-
 dist/smooth-scroll.polyfills.js          |   9 +-
 dist/smooth-scroll.polyfills.min.js      |   4 +-
 docs/dist/smooth-scroll.js               | 649 --------------------
 docs/dist/smooth-scroll.min.js           |   2 -
 docs/dist/smooth-scroll.polyfills.js     | 719 -----------------------
 docs/dist/smooth-scroll.polyfills.min.js |   2 -
 gulpfile.js                              |   4 +-
 docs/index.html => index.html            |   2 +-
 package.json                             |   2 +-
 docs/speed.html => speed.html            |   2 +-
 src/copy/index.html                      |   2 +-
 src/copy/speed.html                      |   2 +-
 src/js/smooth-scroll/smooth-scroll.js    |   7 +-
 15 files changed, 28 insertions(+), 1391 deletions(-)
 delete mode 100755 docs/dist/smooth-scroll.js
 delete mode 100755 docs/dist/smooth-scroll.min.js
 delete mode 100755 docs/dist/smooth-scroll.polyfills.js
 delete mode 100755 docs/dist/smooth-scroll.polyfills.min.js
 rename docs/index.html => index.html (98%)
 rename docs/speed.html => speed.html (96%)

diff --git a/dist/smooth-scroll.js b/dist/smooth-scroll.js
index 4d7326c..b0958df 100755
--- a/dist/smooth-scroll.js
+++ b/dist/smooth-scroll.js
@@ -1,5 +1,5 @@
 /*!
- * smooth-scroll v15.1.2
+ * smooth-scroll v15.1.3
  * Animate scrolling to anchor links
  * (c) 2018 Chris Ferdinandi
  * MIT License
@@ -271,7 +271,7 @@
 		var speed = settings.speedAsDuration ? settings.speed : Math.abs(distance / 1000 * settings.speed);
 		if (settings.durationMax && speed > settings.durationMax) return settings.durationMax;
 		if (settings.durationMin && speed < settings.durationMin) return settings.durationMin;
-		return speed;
+		return parseInt(speed, 10);
 	};
 
 	var setHistory = function (options) {
@@ -404,6 +404,9 @@
 		 */
 		smoothScroll.animateScroll = function (anchor, toggle, options) {
 
+			// Cancel any in progress scrolls
+			smoothScroll.cancelScroll();
+
 			// Local settings
 			var _settings = extend(settings || defaults, options || {}); // Merge user options with defaults
 
@@ -462,7 +465,7 @@
 			var loopAnimateScroll = function (timestamp) {
 				if (!start) { start = timestamp; }
 				timeLapsed += timestamp - start;
-				percentage = (timeLapsed / parseInt(speed, 10));
+				percentage = speed === 0 ? 0 : (timeLapsed / speed);
 				percentage = (percentage > 1) ? 1 : percentage;
 				position = startLocation + (distance * easingPattern(_settings, percentage));
 				window.scrollTo(0, Math.floor(position));
diff --git a/dist/smooth-scroll.min.js b/dist/smooth-scroll.min.js
index c8d932e..9902d37 100755
--- a/dist/smooth-scroll.min.js
+++ b/dist/smooth-scroll.min.js
@@ -1,2 +1,2 @@
-/*! smooth-scroll v15.1.2 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
-!(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(C){"use strict";var L={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,speedAsDuration:!1,durationMax:null,durationMin:null,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},H=function(){var n={};return Array.prototype.forEach.call(arguments,(function(e){for(var t in e){if(!e.hasOwnProperty(t))return;n[t]=e[t]}})),n},r=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,a=-1,r="",i=n.charCodeAt(0);++a<o;){if(0===(t=n.charCodeAt(a)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");1<=t&&t<=31||127==t||0===a&&48<=t&&t<=57||1===a&&48<=t&&t<=57&&45===i?r+="\\"+t.toString(16)+" ":r+=128<=t||45===t||95===t||48<=t&&t<=57||65<=t&&t<=90||97<=t&&t<=122?n.charAt(a):"\\"+n.charAt(a)}return"#"+r},q=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},x=function(e){return e?(t=e,parseInt(C.getComputedStyle(t).height,10)+e.offsetTop):0;var t},Q=function(e,t,n,o){if(t.emitEvents&&"function"==typeof C.CustomEvent){var a=new CustomEvent(e,{bubbles:!0,detail:{anchor:n,toggle:o}});document.dispatchEvent(a)}};return function(o,e){var I,a,M,A,w={};w.cancelScroll=function(e){cancelAnimationFrame(A),A=null,e||Q("scrollCancel",I)},w.animateScroll=function(i,s,e){var c=H(I||L,e||{}),u="[object Number]"===Object.prototype.toString.call(i),t=u||!i.tagName?null:i;if(u||t){var l=C.pageYOffset;c.header&&!M&&(M=document.querySelector(c.header));var n,o,a,d,r,f,m,h,p=x(M),g=u?i:(function(e,t,n,o){var a=0;if(e.offsetParent)for(;a+=e.offsetTop,e=e.offsetParent;);return a=Math.max(a-t-n,0),o&&(a=Math.min(a,q()-C.innerHeight)),a})(t,p,parseInt("function"==typeof c.offset?c.offset(i,s):c.offset,10),c.clip),y=g-l,v=q(),S=0,E=(n=y,a=(o=c).speedAsDuration?o.speed:Math.abs(n/1e3*o.speed),o.durationMax&&a>o.durationMax?o.durationMax:o.durationMin&&a<o.durationMin?o.durationMin:a),b=function(e,t){var n,o,a,r=C.pageYOffset;if(e==t||r==t||(l<t&&C.innerHeight+r)>=v)return w.cancelScroll(!0),o=t,a=u,0===(n=i)&&document.body.focus(),a||(n.focus(),document.activeElement!==n&&(n.setAttribute("tabindex","-1"),n.focus(),n.style.outline="none"),C.scrollTo(0,o)),Q("scrollStop",c,i,s),!(A=d=null)},O=function(e){var t,n,o;d||(d=e),r=(S+=e-d)/parseInt(E,10),f=l+y*(n=r=1<r?1:r,"easeInQuad"===(t=c).easing&&(o=n*n),"easeOutQuad"===t.easing&&(o=n*(2-n)),"easeInOutQuad"===t.easing&&(o=n<.5?2*n*n:(4-2*n)*n-1),"easeInCubic"===t.easing&&(o=n*n*n),"easeOutCubic"===t.easing&&(o=--n*n*n+1),"easeInOutCubic"===t.easing&&(o=n<.5?4*n*n*n:(n-1)*(2*n-2)*(2*n-2)+1),"easeInQuart"===t.easing&&(o=n*n*n*n),"easeOutQuart"===t.easing&&(o=1- --n*n*n*n),"easeInOutQuart"===t.easing&&(o=n<.5?8*n*n*n*n:1-8*--n*n*n*n),"easeInQuint"===t.easing&&(o=n*n*n*n*n),"easeOutQuint"===t.easing&&(o=1+--n*n*n*n*n),"easeInOutQuint"===t.easing&&(o=n<.5?16*n*n*n*n*n:1+16*--n*n*n*n*n),t.customEasing&&(o=t.customEasing(n)),o||n),C.scrollTo(0,Math.floor(f)),b(f,g)||(A=C.requestAnimationFrame(O),d=e)};0===C.pageYOffset&&C.scrollTo(0,0),m=i,h=c,u||history.pushState&&h.updateURL&&history.pushState({smoothScroll:JSON.stringify(h),anchor:m.id},document.title,m===document.documentElement?"#top":"#"+m.id),Q("scrollStart",c,i,s),w.cancelScroll(!0),C.requestAnimationFrame(O)}};var t=function(e){if(!("matchMedia"in C&&C.matchMedia("(prefers-reduced-motion)").matches)&&0===e.button&&!e.metaKey&&!e.ctrlKey&&"closest"in e.target&&(a=e.target.closest(o))&&"a"===a.tagName.toLowerCase()&&!e.target.closest(I.ignore)&&a.hostname===C.location.hostname&&a.pathname===C.location.pathname&&/#/.test(a.href)){var t=r(a.hash),n=I.topOnEmptyHash&&"#"===t?document.documentElement:document.querySelector(t);(n=n||"#top"!==t?n:document.documentElement)&&(e.preventDefault(),(function(e){if(history.replaceState&&e.updateURL&&!history.state){var t=C.location.hash;t=t||C.pageYOffset,history.replaceState({smoothScroll:JSON.stringify(e),anchor:t||C.pageYOffset},document.title,t||C.location.href)}})(I),w.animateScroll(n,a))}},n=function(e){if(null!==history.state&&history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(I)){var t=history.state.anchor;t&&0!==t&&!(t=document.querySelector(r(history.state.anchor)))||w.animateScroll(t,null,{updateURL:!1})}};return w.destroy=function(){I&&(document.removeEventListener("click",t,!1),C.removeEventListener("popstate",n,!1),w.cancelScroll(),A=M=a=I=null)},w.init=function(e){if(!("querySelector"in document&&"addEventListener"in C&&"requestAnimationFrame"in C&&"closest"in C.Element.prototype))throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";w.destroy(),I=H(L,e||{}),M=I.header?document.querySelector(I.header):null,document.addEventListener("click",t,!1),I.updateURL&&I.popstate&&C.addEventListener("popstate",n,!1)},w.init(e),w}}));
\ No newline at end of file
+/*! smooth-scroll v15.1.3 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
+!(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(C){"use strict";var L={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,speedAsDuration:!1,durationMax:null,durationMin:null,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},H=function(){var n={};return Array.prototype.forEach.call(arguments,(function(e){for(var t in e){if(!e.hasOwnProperty(t))return;n[t]=e[t]}})),n},r=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,a=-1,r="",i=n.charCodeAt(0);++a<o;){if(0===(t=n.charCodeAt(a)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");1<=t&&t<=31||127==t||0===a&&48<=t&&t<=57||1===a&&48<=t&&t<=57&&45===i?r+="\\"+t.toString(16)+" ":r+=128<=t||45===t||95===t||48<=t&&t<=57||65<=t&&t<=90||97<=t&&t<=122?n.charAt(a):"\\"+n.charAt(a)}return"#"+r},q=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},x=function(e){return e?(t=e,parseInt(C.getComputedStyle(t).height,10)+e.offsetTop):0;var t},Q=function(e,t,n,o){if(t.emitEvents&&"function"==typeof C.CustomEvent){var a=new CustomEvent(e,{bubbles:!0,detail:{anchor:n,toggle:o}});document.dispatchEvent(a)}};return function(o,e){var I,a,M,A,w={};w.cancelScroll=function(e){cancelAnimationFrame(A),A=null,e||Q("scrollCancel",I)},w.animateScroll=function(i,s,e){w.cancelScroll();var c=H(I||L,e||{}),u="[object Number]"===Object.prototype.toString.call(i),t=u||!i.tagName?null:i;if(u||t){var l=C.pageYOffset;c.header&&!M&&(M=document.querySelector(c.header));var n,o,a,d,r,f,m,h,p=x(M),g=u?i:(function(e,t,n,o){var a=0;if(e.offsetParent)for(;a+=e.offsetTop,e=e.offsetParent;);return a=Math.max(a-t-n,0),o&&(a=Math.min(a,q()-C.innerHeight)),a})(t,p,parseInt("function"==typeof c.offset?c.offset(i,s):c.offset,10),c.clip),y=g-l,S=q(),v=0,E=(n=y,a=(o=c).speedAsDuration?o.speed:Math.abs(n/1e3*o.speed),o.durationMax&&a>o.durationMax?o.durationMax:o.durationMin&&a<o.durationMin?o.durationMin:parseInt(a,10)),b=function(e,t){var n,o,a,r=C.pageYOffset;if(e==t||r==t||(l<t&&C.innerHeight+r)>=S)return w.cancelScroll(!0),o=t,a=u,0===(n=i)&&document.body.focus(),a||(n.focus(),document.activeElement!==n&&(n.setAttribute("tabindex","-1"),n.focus(),n.style.outline="none"),C.scrollTo(0,o)),Q("scrollStop",c,i,s),!(A=d=null)},O=function(e){var t,n,o;d||(d=e),v+=e-d,f=l+y*(n=r=1<(r=0===E?0:v/E)?1:r,"easeInQuad"===(t=c).easing&&(o=n*n),"easeOutQuad"===t.easing&&(o=n*(2-n)),"easeInOutQuad"===t.easing&&(o=n<.5?2*n*n:(4-2*n)*n-1),"easeInCubic"===t.easing&&(o=n*n*n),"easeOutCubic"===t.easing&&(o=--n*n*n+1),"easeInOutCubic"===t.easing&&(o=n<.5?4*n*n*n:(n-1)*(2*n-2)*(2*n-2)+1),"easeInQuart"===t.easing&&(o=n*n*n*n),"easeOutQuart"===t.easing&&(o=1- --n*n*n*n),"easeInOutQuart"===t.easing&&(o=n<.5?8*n*n*n*n:1-8*--n*n*n*n),"easeInQuint"===t.easing&&(o=n*n*n*n*n),"easeOutQuint"===t.easing&&(o=1+--n*n*n*n*n),"easeInOutQuint"===t.easing&&(o=n<.5?16*n*n*n*n*n:1+16*--n*n*n*n*n),t.customEasing&&(o=t.customEasing(n)),o||n),C.scrollTo(0,Math.floor(f)),b(f,g)||(A=C.requestAnimationFrame(O),d=e)};0===C.pageYOffset&&C.scrollTo(0,0),m=i,h=c,u||history.pushState&&h.updateURL&&history.pushState({smoothScroll:JSON.stringify(h),anchor:m.id},document.title,m===document.documentElement?"#top":"#"+m.id),Q("scrollStart",c,i,s),w.cancelScroll(!0),C.requestAnimationFrame(O)}};var t=function(e){if(!("matchMedia"in C&&C.matchMedia("(prefers-reduced-motion)").matches)&&0===e.button&&!e.metaKey&&!e.ctrlKey&&"closest"in e.target&&(a=e.target.closest(o))&&"a"===a.tagName.toLowerCase()&&!e.target.closest(I.ignore)&&a.hostname===C.location.hostname&&a.pathname===C.location.pathname&&/#/.test(a.href)){var t=r(a.hash),n=I.topOnEmptyHash&&"#"===t?document.documentElement:document.querySelector(t);(n=n||"#top"!==t?n:document.documentElement)&&(e.preventDefault(),(function(e){if(history.replaceState&&e.updateURL&&!history.state){var t=C.location.hash;t=t||C.pageYOffset,history.replaceState({smoothScroll:JSON.stringify(e),anchor:t||C.pageYOffset},document.title,t||C.location.href)}})(I),w.animateScroll(n,a))}},n=function(e){if(null!==history.state&&history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(I)){var t=history.state.anchor;t&&0!==t&&!(t=document.querySelector(r(history.state.anchor)))||w.animateScroll(t,null,{updateURL:!1})}};return w.destroy=function(){I&&(document.removeEventListener("click",t,!1),C.removeEventListener("popstate",n,!1),w.cancelScroll(),A=M=a=I=null)},w.init=function(e){if(!("querySelector"in document&&"addEventListener"in C&&"requestAnimationFrame"in C&&"closest"in C.Element.prototype))throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";w.destroy(),I=H(L,e||{}),M=I.header?document.querySelector(I.header):null,document.addEventListener("click",t,!1),I.updateURL&&I.popstate&&C.addEventListener("popstate",n,!1)},w.init(e),w}}));
\ No newline at end of file
diff --git a/dist/smooth-scroll.polyfills.js b/dist/smooth-scroll.polyfills.js
index 11bfda0..d4b99b0 100755
--- a/dist/smooth-scroll.polyfills.js
+++ b/dist/smooth-scroll.polyfills.js
@@ -1,5 +1,5 @@
 /*!
- * smooth-scroll v15.1.2
+ * smooth-scroll v15.1.3
  * Animate scrolling to anchor links
  * (c) 2018 Chris Ferdinandi
  * MIT License
@@ -341,7 +341,7 @@ if (window.Element && !Element.prototype.closest) {
 		var speed = settings.speedAsDuration ? settings.speed : Math.abs(distance / 1000 * settings.speed);
 		if (settings.durationMax && speed > settings.durationMax) return settings.durationMax;
 		if (settings.durationMin && speed < settings.durationMin) return settings.durationMin;
-		return speed;
+		return parseInt(speed, 10);
 	};
 
 	var setHistory = function (options) {
@@ -474,6 +474,9 @@ if (window.Element && !Element.prototype.closest) {
 		 */
 		smoothScroll.animateScroll = function (anchor, toggle, options) {
 
+			// Cancel any in progress scrolls
+			smoothScroll.cancelScroll();
+
 			// Local settings
 			var _settings = extend(settings || defaults, options || {}); // Merge user options with defaults
 
@@ -532,7 +535,7 @@ if (window.Element && !Element.prototype.closest) {
 			var loopAnimateScroll = function (timestamp) {
 				if (!start) { start = timestamp; }
 				timeLapsed += timestamp - start;
-				percentage = (timeLapsed / parseInt(speed, 10));
+				percentage = speed === 0 ? 0 : (timeLapsed / speed);
 				percentage = (percentage > 1) ? 1 : percentage;
 				position = startLocation + (distance * easingPattern(_settings, percentage));
 				window.scrollTo(0, Math.floor(position));
diff --git a/dist/smooth-scroll.polyfills.min.js b/dist/smooth-scroll.polyfills.min.js
index 743d01c..a4dab88 100755
--- a/dist/smooth-scroll.polyfills.min.js
+++ b/dist/smooth-scroll.polyfills.min.js
@@ -1,2 +1,2 @@
-/*! smooth-scroll v15.1.2 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
-window.Element&&!Element.prototype.closest&&(Element.prototype.closest=function(e){var t,n=(this.document||this.ownerDocument).querySelectorAll(e),o=this;do{for(t=n.length;0<=--t&&n.item(t)!==o;);}while(t<0&&(o=o.parentElement));return o}),(function(){if("function"==typeof window.CustomEvent)return;function e(e,t){t=t||{bubbles:!1,cancelable:!1,detail:void 0};var n=document.createEvent("CustomEvent");return n.initCustomEvent(e,t.bubbles,t.cancelable,t.detail),n}e.prototype=window.Event.prototype,window.CustomEvent=e})(),(function(){for(var i=0,e=["ms","moz","webkit","o"],t=0;t<e.length&&!window.requestAnimationFrame;++t)window.requestAnimationFrame=window[e[t]+"RequestAnimationFrame"],window.cancelAnimationFrame=window[e[t]+"CancelAnimationFrame"]||window[e[t]+"CancelRequestAnimationFrame"];window.requestAnimationFrame||(window.requestAnimationFrame=function(e,t){var n=(new Date).getTime(),o=Math.max(0,16-(n-i)),a=window.setTimeout((function(){e(n+o)}),o);return i=n+o,a}),window.cancelAnimationFrame||(window.cancelAnimationFrame=function(e){clearTimeout(e)})})(),(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(M){"use strict";var I={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,speedAsDuration:!1,durationMax:null,durationMin:null,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},F=function(){var n={};return Array.prototype.forEach.call(arguments,(function(e){for(var t in e){if(!e.hasOwnProperty(t))return;n[t]=e[t]}})),n},i=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,a=-1,i="",r=n.charCodeAt(0);++a<o;){if(0===(t=n.charCodeAt(a)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");1<=t&&t<=31||127==t||0===a&&48<=t&&t<=57||1===a&&48<=t&&t<=57&&45===r?i+="\\"+t.toString(16)+" ":i+=128<=t||45===t||95===t||48<=t&&t<=57||65<=t&&t<=90||97<=t&&t<=122?n.charAt(a):"\\"+n.charAt(a)}return"#"+i},L=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},x=function(e){return e?(t=e,parseInt(M.getComputedStyle(t).height,10)+e.offsetTop):0;var t},H=function(e,t,n,o){if(t.emitEvents&&"function"==typeof M.CustomEvent){var a=new CustomEvent(e,{bubbles:!0,detail:{anchor:n,toggle:o}});document.dispatchEvent(a)}};return function(o,e){var A,a,O,C,q={};q.cancelScroll=function(e){cancelAnimationFrame(C),C=null,e||H("scrollCancel",A)},q.animateScroll=function(r,c,e){var s=F(A||I,e||{}),u="[object Number]"===Object.prototype.toString.call(r),t=u||!r.tagName?null:r;if(u||t){var l=M.pageYOffset;s.header&&!O&&(O=document.querySelector(s.header));var n,o,a,m,i,d,f,h,p=x(O),g=u?r:(function(e,t,n,o){var a=0;if(e.offsetParent)for(;a+=e.offsetTop,e=e.offsetParent;);return a=Math.max(a-t-n,0),o&&(a=Math.min(a,L()-M.innerHeight)),a})(t,p,parseInt("function"==typeof s.offset?s.offset(r,c):s.offset,10),s.clip),y=g-l,w=L(),v=0,E=(n=y,a=(o=s).speedAsDuration?o.speed:Math.abs(n/1e3*o.speed),o.durationMax&&a>o.durationMax?o.durationMax:o.durationMin&&a<o.durationMin?o.durationMin:a),S=function(e,t){var n,o,a,i=M.pageYOffset;if(e==t||i==t||(l<t&&M.innerHeight+i)>=w)return q.cancelScroll(!0),o=t,a=u,0===(n=r)&&document.body.focus(),a||(n.focus(),document.activeElement!==n&&(n.setAttribute("tabindex","-1"),n.focus(),n.style.outline="none"),M.scrollTo(0,o)),H("scrollStop",s,r,c),!(C=m=null)},b=function(e){var t,n,o;m||(m=e),i=(v+=e-m)/parseInt(E,10),d=l+y*(n=i=1<i?1:i,"easeInQuad"===(t=s).easing&&(o=n*n),"easeOutQuad"===t.easing&&(o=n*(2-n)),"easeInOutQuad"===t.easing&&(o=n<.5?2*n*n:(4-2*n)*n-1),"easeInCubic"===t.easing&&(o=n*n*n),"easeOutCubic"===t.easing&&(o=--n*n*n+1),"easeInOutCubic"===t.easing&&(o=n<.5?4*n*n*n:(n-1)*(2*n-2)*(2*n-2)+1),"easeInQuart"===t.easing&&(o=n*n*n*n),"easeOutQuart"===t.easing&&(o=1- --n*n*n*n),"easeInOutQuart"===t.easing&&(o=n<.5?8*n*n*n*n:1-8*--n*n*n*n),"easeInQuint"===t.easing&&(o=n*n*n*n*n),"easeOutQuint"===t.easing&&(o=1+--n*n*n*n*n),"easeInOutQuint"===t.easing&&(o=n<.5?16*n*n*n*n*n:1+16*--n*n*n*n*n),t.customEasing&&(o=t.customEasing(n)),o||n),M.scrollTo(0,Math.floor(d)),S(d,g)||(C=M.requestAnimationFrame(b),m=e)};0===M.pageYOffset&&M.scrollTo(0,0),f=r,h=s,u||history.pushState&&h.updateURL&&history.pushState({smoothScroll:JSON.stringify(h),anchor:f.id},document.title,f===document.documentElement?"#top":"#"+f.id),H("scrollStart",s,r,c),q.cancelScroll(!0),M.requestAnimationFrame(b)}};var t=function(e){if(!("matchMedia"in M&&M.matchMedia("(prefers-reduced-motion)").matches)&&0===e.button&&!e.metaKey&&!e.ctrlKey&&"closest"in e.target&&(a=e.target.closest(o))&&"a"===a.tagName.toLowerCase()&&!e.target.closest(A.ignore)&&a.hostname===M.location.hostname&&a.pathname===M.location.pathname&&/#/.test(a.href)){var t=i(a.hash),n=A.topOnEmptyHash&&"#"===t?document.documentElement:document.querySelector(t);(n=n||"#top"!==t?n:document.documentElement)&&(e.preventDefault(),(function(e){if(history.replaceState&&e.updateURL&&!history.state){var t=M.location.hash;t=t||M.pageYOffset,history.replaceState({smoothScroll:JSON.stringify(e),anchor:t||M.pageYOffset},document.title,t||M.location.href)}})(A),q.animateScroll(n,a))}},n=function(e){if(null!==history.state&&history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(A)){var t=history.state.anchor;t&&0!==t&&!(t=document.querySelector(i(history.state.anchor)))||q.animateScroll(t,null,{updateURL:!1})}};return q.destroy=function(){A&&(document.removeEventListener("click",t,!1),M.removeEventListener("popstate",n,!1),q.cancelScroll(),C=O=a=A=null)},q.init=function(e){if(!("querySelector"in document&&"addEventListener"in M&&"requestAnimationFrame"in M&&"closest"in M.Element.prototype))throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";q.destroy(),A=F(I,e||{}),O=A.header?document.querySelector(A.header):null,document.addEventListener("click",t,!1),A.updateURL&&A.popstate&&M.addEventListener("popstate",n,!1)},q.init(e),q}}));
\ No newline at end of file
+/*! smooth-scroll v15.1.3 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
+window.Element&&!Element.prototype.closest&&(Element.prototype.closest=function(e){var t,n=(this.document||this.ownerDocument).querySelectorAll(e),o=this;do{for(t=n.length;0<=--t&&n.item(t)!==o;);}while(t<0&&(o=o.parentElement));return o}),(function(){if("function"==typeof window.CustomEvent)return;function e(e,t){t=t||{bubbles:!1,cancelable:!1,detail:void 0};var n=document.createEvent("CustomEvent");return n.initCustomEvent(e,t.bubbles,t.cancelable,t.detail),n}e.prototype=window.Event.prototype,window.CustomEvent=e})(),(function(){for(var i=0,e=["ms","moz","webkit","o"],t=0;t<e.length&&!window.requestAnimationFrame;++t)window.requestAnimationFrame=window[e[t]+"RequestAnimationFrame"],window.cancelAnimationFrame=window[e[t]+"CancelAnimationFrame"]||window[e[t]+"CancelRequestAnimationFrame"];window.requestAnimationFrame||(window.requestAnimationFrame=function(e,t){var n=(new Date).getTime(),o=Math.max(0,16-(n-i)),a=window.setTimeout((function(){e(n+o)}),o);return i=n+o,a}),window.cancelAnimationFrame||(window.cancelAnimationFrame=function(e){clearTimeout(e)})})(),(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(M){"use strict";var I={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,speedAsDuration:!1,durationMax:null,durationMin:null,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},F=function(){var n={};return Array.prototype.forEach.call(arguments,(function(e){for(var t in e){if(!e.hasOwnProperty(t))return;n[t]=e[t]}})),n},i=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,a=-1,i="",r=n.charCodeAt(0);++a<o;){if(0===(t=n.charCodeAt(a)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");1<=t&&t<=31||127==t||0===a&&48<=t&&t<=57||1===a&&48<=t&&t<=57&&45===r?i+="\\"+t.toString(16)+" ":i+=128<=t||45===t||95===t||48<=t&&t<=57||65<=t&&t<=90||97<=t&&t<=122?n.charAt(a):"\\"+n.charAt(a)}return"#"+i},L=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},x=function(e){return e?(t=e,parseInt(M.getComputedStyle(t).height,10)+e.offsetTop):0;var t},H=function(e,t,n,o){if(t.emitEvents&&"function"==typeof M.CustomEvent){var a=new CustomEvent(e,{bubbles:!0,detail:{anchor:n,toggle:o}});document.dispatchEvent(a)}};return function(o,e){var A,a,O,C,q={};q.cancelScroll=function(e){cancelAnimationFrame(C),C=null,e||H("scrollCancel",A)},q.animateScroll=function(r,c,e){q.cancelScroll();var s=F(A||I,e||{}),u="[object Number]"===Object.prototype.toString.call(r),t=u||!r.tagName?null:r;if(u||t){var l=M.pageYOffset;s.header&&!O&&(O=document.querySelector(s.header));var n,o,a,m,i,d,f,h,p=x(O),g=u?r:(function(e,t,n,o){var a=0;if(e.offsetParent)for(;a+=e.offsetTop,e=e.offsetParent;);return a=Math.max(a-t-n,0),o&&(a=Math.min(a,L()-M.innerHeight)),a})(t,p,parseInt("function"==typeof s.offset?s.offset(r,c):s.offset,10),s.clip),y=g-l,w=L(),v=0,S=(n=y,a=(o=s).speedAsDuration?o.speed:Math.abs(n/1e3*o.speed),o.durationMax&&a>o.durationMax?o.durationMax:o.durationMin&&a<o.durationMin?o.durationMin:parseInt(a,10)),E=function(e,t){var n,o,a,i=M.pageYOffset;if(e==t||i==t||(l<t&&M.innerHeight+i)>=w)return q.cancelScroll(!0),o=t,a=u,0===(n=r)&&document.body.focus(),a||(n.focus(),document.activeElement!==n&&(n.setAttribute("tabindex","-1"),n.focus(),n.style.outline="none"),M.scrollTo(0,o)),H("scrollStop",s,r,c),!(C=m=null)},b=function(e){var t,n,o;m||(m=e),v+=e-m,d=l+y*(n=i=1<(i=0===S?0:v/S)?1:i,"easeInQuad"===(t=s).easing&&(o=n*n),"easeOutQuad"===t.easing&&(o=n*(2-n)),"easeInOutQuad"===t.easing&&(o=n<.5?2*n*n:(4-2*n)*n-1),"easeInCubic"===t.easing&&(o=n*n*n),"easeOutCubic"===t.easing&&(o=--n*n*n+1),"easeInOutCubic"===t.easing&&(o=n<.5?4*n*n*n:(n-1)*(2*n-2)*(2*n-2)+1),"easeInQuart"===t.easing&&(o=n*n*n*n),"easeOutQuart"===t.easing&&(o=1- --n*n*n*n),"easeInOutQuart"===t.easing&&(o=n<.5?8*n*n*n*n:1-8*--n*n*n*n),"easeInQuint"===t.easing&&(o=n*n*n*n*n),"easeOutQuint"===t.easing&&(o=1+--n*n*n*n*n),"easeInOutQuint"===t.easing&&(o=n<.5?16*n*n*n*n*n:1+16*--n*n*n*n*n),t.customEasing&&(o=t.customEasing(n)),o||n),M.scrollTo(0,Math.floor(d)),E(d,g)||(C=M.requestAnimationFrame(b),m=e)};0===M.pageYOffset&&M.scrollTo(0,0),f=r,h=s,u||history.pushState&&h.updateURL&&history.pushState({smoothScroll:JSON.stringify(h),anchor:f.id},document.title,f===document.documentElement?"#top":"#"+f.id),H("scrollStart",s,r,c),q.cancelScroll(!0),M.requestAnimationFrame(b)}};var t=function(e){if(!("matchMedia"in M&&M.matchMedia("(prefers-reduced-motion)").matches)&&0===e.button&&!e.metaKey&&!e.ctrlKey&&"closest"in e.target&&(a=e.target.closest(o))&&"a"===a.tagName.toLowerCase()&&!e.target.closest(A.ignore)&&a.hostname===M.location.hostname&&a.pathname===M.location.pathname&&/#/.test(a.href)){var t=i(a.hash),n=A.topOnEmptyHash&&"#"===t?document.documentElement:document.querySelector(t);(n=n||"#top"!==t?n:document.documentElement)&&(e.preventDefault(),(function(e){if(history.replaceState&&e.updateURL&&!history.state){var t=M.location.hash;t=t||M.pageYOffset,history.replaceState({smoothScroll:JSON.stringify(e),anchor:t||M.pageYOffset},document.title,t||M.location.href)}})(A),q.animateScroll(n,a))}},n=function(e){if(null!==history.state&&history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(A)){var t=history.state.anchor;t&&0!==t&&!(t=document.querySelector(i(history.state.anchor)))||q.animateScroll(t,null,{updateURL:!1})}};return q.destroy=function(){A&&(document.removeEventListener("click",t,!1),M.removeEventListener("popstate",n,!1),q.cancelScroll(),C=O=a=A=null)},q.init=function(e){if(!("querySelector"in document&&"addEventListener"in M&&"requestAnimationFrame"in M&&"closest"in M.Element.prototype))throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";q.destroy(),A=F(I,e||{}),O=A.header?document.querySelector(A.header):null,document.addEventListener("click",t,!1),A.updateURL&&A.popstate&&M.addEventListener("popstate",n,!1)},q.init(e),q}}));
\ No newline at end of file
diff --git a/docs/dist/smooth-scroll.js b/docs/dist/smooth-scroll.js
deleted file mode 100755
index d20008d..0000000
--- a/docs/dist/smooth-scroll.js
+++ /dev/null
@@ -1,649 +0,0 @@
-/*!
- * smooth-scroll v15.1.0: Animate scrolling to anchor links
- * (c) 2018 Chris Ferdinandi
- * MIT License
- * http://github.com/cferdinandi/smooth-scroll
- */
-
-(function (root, factory) {
-	if (typeof define === 'function' && define.amd) {
-		define([], (function () {
-			return factory(root);
-		}));
-	} else if (typeof exports === 'object') {
-		module.exports = factory(root);
-	} else {
-		root.SmoothScroll = factory(root);
-	}
-})(typeof global !== 'undefined' ? global : typeof window !== 'undefined' ? window : this, (function (window) {
-
-	'use strict';
-
-	//
-	// Default settings
-	//
-
-	var defaults = {
-
-		// Selectors
-		ignore: '[data-scroll-ignore]',
-		header: null,
-		topOnEmptyHash: true,
-
-		// Speed & Duration
-		speed: 500,
-		speedAsDuration: false,
-		durationMax: null,
-		durationMin: null,
-		clip: true,
-		offset: 0,
-
-		// Easing
-		easing: 'easeInOutCubic',
-		customEasing: null,
-
-		// History
-		updateURL: true,
-		popstate: true,
-
-		// Custom Events
-		emitEvents: true
-
-	};
-
-
-	//
-	// Utility Methods
-	//
-
-	/**
-	 * Check if browser supports required methods
-	 * @return {Boolean} Returns true if all required methods are supported
-	 */
-	var supports = function () {
-		return (
-			'querySelector' in document &&
-			'addEventListener' in window &&
-			'requestAnimationFrame' in window &&
-			'closest' in window.Element.prototype
-		);
-	};
-
-	/**
-	 * Merge two or more objects together.
-	 * @param   {Object}   objects  The objects to merge together
-	 * @returns {Object}            Merged values of defaults and options
-	 */
-	var extend = function () {
-		var merged = {};
-		Array.prototype.forEach.call(arguments, (function (obj) {
-			for (var key in obj) {
-				if (!obj.hasOwnProperty(key)) return;
-				merged[key] = obj[key];
-			}
-		}));
-		return merged;
-	};
-
-	/**
-	 * Check to see if user prefers reduced motion
-	 * @param  {Object} settings Script settings
-	 */
-	var reduceMotion = function (settings) {
-		if ('matchMedia' in window && window.matchMedia('(prefers-reduced-motion)').matches) {
-			return true;
-		}
-		return false;
-	};
-
-	/**
-	 * Get the height of an element.
-	 * @param  {Node} elem The element to get the height of
-	 * @return {Number}    The element's height in pixels
-	 */
-	var getHeight = function (elem) {
-		return parseInt(window.getComputedStyle(elem).height, 10);
-	};
-
-	/**
-	 * Decode a URI, with error check
-	 * @param  {String} hash The URI to decode
-	 * @return {String}      A decoded URI (or the original string if an error is thrown)
-	 */
-	var decode = function (hash) {
-		var decoded;
-		try {
-			decoded = decodeURIComponent(hash);
-		} catch(e) {
-			decoded = hash;
-		}
-		return decoded;
-	};
-
-	/**
-	 * Escape special characters for use with querySelector
-	 * @author Mathias Bynens
-	 * @link https://github.com/mathiasbynens/CSS.escape
-	 * @param {String} id The anchor ID to escape
-	 */
-	var escapeCharacters = function (id) {
-
-		// Remove leading hash
-		if (id.charAt(0) === '#') {
-			id = id.substr(1);
-		}
-
-		var string = String(id);
-		var length = string.length;
-		var index = -1;
-		var codeUnit;
-		var result = '';
-		var firstCodeUnit = string.charCodeAt(0);
-		while (++index < length) {
-			codeUnit = string.charCodeAt(index);
-			// Note: there’s no need to special-case astral symbols, surrogate
-			// pairs, or lone surrogates.
-
-			// If the character is NULL (U+0000), then throw an
-			// `InvalidCharacterError` exception and terminate these steps.
-			if (codeUnit === 0x0000) {
-				throw new InvalidCharacterError(
-					'Invalid character: the input contains U+0000.'
-				);
-			}
-
-			if (
-				// If the character is in the range [\1-\1F] (U+0001 to U+001F) or is
-				// U+007F, […]
-				(codeUnit >= 0x0001 && codeUnit <= 0x001F) || codeUnit == 0x007F ||
-				// If the character is the first character and is in the range [0-9]
-				// (U+0030 to U+0039), […]
-				(index === 0 && codeUnit >= 0x0030 && codeUnit <= 0x0039) ||
-				// If the character is the second character and is in the range [0-9]
-				// (U+0030 to U+0039) and the first character is a `-` (U+002D), […]
-				(
-					index === 1 &&
-					codeUnit >= 0x0030 && codeUnit <= 0x0039 &&
-					firstCodeUnit === 0x002D
-				)
-			) {
-				// http://dev.w3.org/csswg/cssom/#escape-a-character-as-code-point
-				result += '\\' + codeUnit.toString(16) + ' ';
-				continue;
-			}
-
-			// If the character is not handled by one of the above rules and is
-			// greater than or equal to U+0080, is `-` (U+002D) or `_` (U+005F), or
-			// is in one of the ranges [0-9] (U+0030 to U+0039), [A-Z] (U+0041 to
-			// U+005A), or [a-z] (U+0061 to U+007A), […]
-			if (
-				codeUnit >= 0x0080 ||
-				codeUnit === 0x002D ||
-				codeUnit === 0x005F ||
-				codeUnit >= 0x0030 && codeUnit <= 0x0039 ||
-				codeUnit >= 0x0041 && codeUnit <= 0x005A ||
-				codeUnit >= 0x0061 && codeUnit <= 0x007A
-			) {
-				// the character itself
-				result += string.charAt(index);
-				continue;
-			}
-
-			// Otherwise, the escaped character.
-			// http://dev.w3.org/csswg/cssom/#escape-a-character
-			result += '\\' + string.charAt(index);
-
-		}
-
-		// Return sanitized hash
-		var hash;
-		try {
-			hash = decodeURIComponent('#' + result);
-		} catch(e) {
-			hash = '#' + result;
-		}
-		return hash;
-
-	};
-
-	/**
-	 * Calculate the easing pattern
-	 * @link https://gist.github.com/gre/1650294
-	 * @param {String} type Easing pattern
-	 * @param {Number} time Time animation should take to complete
-	 * @returns {Number}
-	 */
-	var easingPattern = function (settings, time) {
-		var pattern;
-
-		// Default Easing Patterns
-		if (settings.easing === 'easeInQuad') pattern = time * time; // accelerating from zero velocity
-		if (settings.easing === 'easeOutQuad') pattern = time * (2 - time); // decelerating to zero velocity
-		if (settings.easing === 'easeInOutQuad') pattern = time < 0.5 ? 2 * time * time : -1 + (4 - 2 * time) * time; // acceleration until halfway, then deceleration
-		if (settings.easing === 'easeInCubic') pattern = time * time * time; // accelerating from zero velocity
-		if (settings.easing === 'easeOutCubic') pattern = (--time) * time * time + 1; // decelerating to zero velocity
-		if (settings.easing === 'easeInOutCubic') pattern = time < 0.5 ? 4 * time * time * time : (time - 1) * (2 * time - 2) * (2 * time - 2) + 1; // acceleration until halfway, then deceleration
-		if (settings.easing === 'easeInQuart') pattern = time * time * time * time; // accelerating from zero velocity
-		if (settings.easing === 'easeOutQuart') pattern = 1 - (--time) * time * time * time; // decelerating to zero velocity
-		if (settings.easing === 'easeInOutQuart') pattern = time < 0.5 ? 8 * time * time * time * time : 1 - 8 * (--time) * time * time * time; // acceleration until halfway, then deceleration
-		if (settings.easing === 'easeInQuint') pattern = time * time * time * time * time; // accelerating from zero velocity
-		if (settings.easing === 'easeOutQuint') pattern = 1 + (--time) * time * time * time * time; // decelerating to zero velocity
-		if (settings.easing === 'easeInOutQuint') pattern = time < 0.5 ? 16 * time * time * time * time * time : 1 + 16 * (--time) * time * time * time * time; // acceleration until halfway, then deceleration
-
-		// Custom Easing Patterns
-		if (!!settings.customEasing) pattern = settings.customEasing(time);
-
-		return pattern || time; // no easing, no acceleration
-	};
-
-	/**
-	 * Determine the document's height
-	 * @returns {Number}
-	 */
-	var getDocumentHeight = function () {
-		return Math.max(
-			document.body.scrollHeight, document.documentElement.scrollHeight,
-			document.body.offsetHeight, document.documentElement.offsetHeight,
-			document.body.clientHeight, document.documentElement.clientHeight
-		);
-	};
-
-	/**
-	 * Calculate how far to scroll
-	 * Clip support added by robjtede - https://github.com/cferdinandi/smooth-scroll/issues/405
-	 * @param {Element} anchor       The anchor element to scroll to
-	 * @param {Number}  headerHeight Height of a fixed header, if any
-	 * @param {Number}  offset       Number of pixels by which to offset scroll
-	 * @param {Boolean} clip         If true, adjust scroll distance to prevent abrupt stops near the bottom of the page
-	 * @returns {Number}
-	 */
-	var getEndLocation = function (anchor, headerHeight, offset, clip) {
-		var location = 0;
-		if (anchor.offsetParent) {
-			do {
-				location += anchor.offsetTop;
-				anchor = anchor.offsetParent;
-			} while (anchor);
-		}
-		location = Math.max(location - headerHeight - offset, 0);
-		if (clip) {
-			location = Math.min(location, getDocumentHeight() - window.innerHeight);
-		}
- 		return location;
-	};
-
-	/**
-	 * Get the height of the fixed header
-	 * @param  {Node}   header The header
-	 * @return {Number}        The height of the header
-	 */
-	var getHeaderHeight = function (header) {
-		return !header ? 0 : (getHeight(header) + header.offsetTop);
-	};
-
-	/**
-	 * Calculate the speed to use for the animation
-	 * @param  {Number} distance The distance to travel
-	 * @param  {Object} settings The plugin settings
-	 * @return {Number}          How fast to animate
-	 */
-	var getSpeed = function (distance, settings) {
-		var speed = settings.speedAsDuration ? settings.speed : Math.abs(distance / 1000 * settings.speed);
-		if (settings.durationMax && speed > settings.durationMax) return settings.durationMax;
-		if (settings.durationMin && speed < settings.durationMin) return settings.durationMin;
-		return speed;
-	};
-
-	var setHistory = function (options) {
-
-		// Make sure this should run
-		if (!history.replaceState || !options.updateURL || history.state) return;
-
-		// Get the hash to use
-		var hash = window.location.hash;
-		hash = hash ? hash : window.pageYOffset;
-
-		// Set a default history
-		history.replaceState(
-			{
-				smoothScroll: JSON.stringify(options),
-				anchor: hash ? hash : window.pageYOffset
-			},
-			document.title,
-			hash ? hash : window.location.href
-		);
-
-	};
-
-	/**
-	 * Update the URL
-	 * @param  {Node}    anchor  The anchor that was scrolled to
-	 * @param  {Boolean} isNum   If true, anchor is a number
-	 * @param  {Object}  options Settings for Smooth Scroll
-	 */
-	var updateURL = function (anchor, isNum, options) {
-
-		// Bail if the anchor is a number
-		if (isNum) return;
-
-		// Verify that pushState is supported and the updateURL option is enabled
-		if (!history.pushState || !options.updateURL) return;
-
-		// Update URL
-		history.pushState(
-			{
-				smoothScroll: JSON.stringify(options),
-				anchor: anchor.id
-			},
-			document.title,
-			anchor === document.documentElement ? '#top' : '#' + anchor.id
-		);
-
-	};
-
-	/**
-	 * Bring the anchored element into focus
-	 * @param {Node}     anchor      The anchor element
-	 * @param {Number}   endLocation The end location to scroll to
-	 * @param {Boolean}  isNum       If true, scroll is to a position rather than an element
-	 */
-	var adjustFocus = function (anchor, endLocation, isNum) {
-
-		// Is scrolling to top of page, blur
-		if (anchor === 0) {
-			document.body.focus();
-		}
-
-		// Don't run if scrolling to a number on the page
-		if (isNum) return;
-
-		// Otherwise, bring anchor element into focus
-		anchor.focus();
-		if (document.activeElement !== anchor) {
-			anchor.setAttribute('tabindex', '-1');
-			anchor.focus();
-			anchor.style.outline = 'none';
-		}
-		window.scrollTo(0 , endLocation);
-
-	};
-
-	/**
-	 * Emit a custom event
-	 * @param  {String} type    The event type
-	 * @param  {Object} options The settings object
-	 * @param  {Node}   anchor  The anchor element
-	 * @param  {Node}   toggle  The toggle element
-	 */
-	var emitEvent = function (type, options, anchor, toggle) {
-		if (!options.emitEvents || typeof window.CustomEvent !== 'function') return;
-		var event = new CustomEvent(type, {
-			bubbles: true,
-			detail: {
-				anchor: anchor,
-				toggle: toggle
-			}
-		});
-		document.dispatchEvent(event);
-	};
-
-
-	//
-	// SmoothScroll Constructor
-	//
-
-	var SmoothScroll = function (selector, options) {
-
-		//
-		// Variables
-		//
-
-		var smoothScroll = {}; // Object for public APIs
-		var settings, anchor, toggle, fixedHeader, eventTimeout, animationInterval;
-
-
-		//
-		// Methods
-		//
-
-		/**
-		 * Cancel a scroll-in-progress
-		 */
-		smoothScroll.cancelScroll = function (noEvent) {
-			cancelAnimationFrame(animationInterval);
-			animationInterval = null;
-			if (noEvent) return;
-			emitEvent('scrollCancel', settings);
-		};
-
-		/**
-		 * Start/stop the scrolling animation
-		 * @param {Node|Number} anchor  The element or position to scroll to
-		 * @param {Element}     toggle  The element that toggled the scroll event
-		 * @param {Object}      options
-		 */
-		smoothScroll.animateScroll = function (anchor, toggle, options) {
-
-			// Local settings
-			var _settings = extend(settings || defaults, options || {}); // Merge user options with defaults
-
-			// Selectors and variables
-			var isNum = Object.prototype.toString.call(anchor) === '[object Number]' ? true : false;
-			var anchorElem = isNum || !anchor.tagName ? null : anchor;
-			if (!isNum && !anchorElem) return;
-			var startLocation = window.pageYOffset; // Current location on the page
-			if (_settings.header && !fixedHeader) {
-				// Get the fixed header if not already set
-				fixedHeader = document.querySelector(_settings.header);
-			}
-			var headerHeight = getHeaderHeight(fixedHeader);
-			var endLocation = isNum ? anchor : getEndLocation(anchorElem, headerHeight, parseInt((typeof _settings.offset === 'function' ? _settings.offset(anchor, toggle) : _settings.offset), 10), _settings.clip); // Location to scroll to
-			var distance = endLocation - startLocation; // distance to travel
-			var documentHeight = getDocumentHeight();
-			var timeLapsed = 0;
-			var speed = getSpeed(distance, _settings);
-			var start, percentage, position;
-
-			/**
-			 * Stop the scroll animation when it reaches its target (or the bottom/top of page)
-			 * @param {Number} position Current position on the page
-			 * @param {Number} endLocation Scroll to location
-			 * @param {Number} animationInterval How much to scroll on this loop
-			 */
-			var stopAnimateScroll = function (position, endLocation) {
-
-				// Get the current location
-				var currentLocation = window.pageYOffset;
-
-				// Check if the end location has been reached yet (or we've hit the end of the document)
-				if (position == endLocation || currentLocation == endLocation || ((startLocation < endLocation && window.innerHeight + currentLocation) >= documentHeight)) {
-
-					// Clear the animation timer
-					smoothScroll.cancelScroll(true);
-
-					// Bring the anchored element into focus
-					adjustFocus(anchor, endLocation, isNum);
-
-					// Emit a custom event
-					emitEvent('scrollStop', _settings, anchor, toggle);
-
-					// Reset start
-					start = null;
-					animationInterval = null;
-
-					return true;
-
-				}
-			};
-
-			/**
-			 * Loop scrolling animation
-			 */
-			var loopAnimateScroll = function (timestamp) {
-				if (!start) { start = timestamp; }
-				timeLapsed += timestamp - start;
-				percentage = (timeLapsed / parseInt(speed, 10));
-				percentage = (percentage > 1) ? 1 : percentage;
-				position = startLocation + (distance * easingPattern(_settings, percentage));
-				window.scrollTo(0, Math.floor(position));
-				if (!stopAnimateScroll(position, endLocation)) {
-					animationInterval = window.requestAnimationFrame(loopAnimateScroll);
-					start = timestamp;
-				}
-			};
-
-			/**
-			 * Reset position to fix weird iOS bug
-			 * @link https://github.com/cferdinandi/smooth-scroll/issues/45
-			 */
-			if (window.pageYOffset === 0) {
-				window.scrollTo(0, 0);
-			}
-
-			// Update the URL
-			updateURL(anchor, isNum, _settings);
-
-			// Emit a custom event
-			emitEvent('scrollStart', _settings, anchor, toggle);
-
-			// Start scrolling animation
-			smoothScroll.cancelScroll(true);
-			window.requestAnimationFrame(loopAnimateScroll);
-
-		};
-
-		/**
-		 * If smooth scroll element clicked, animate scroll
-		 */
-		var clickHandler = function (event) {
-
-			// Don't run if the user prefers reduced motion
-			if (reduceMotion(settings)) return;
-
-			// Don't run if right-click or command/control + click
-			if (event.button !== 0 || event.metaKey || event.ctrlKey) return;
-
-			// Check if event.target has closest() method
-			// By @totegi - https://github.com/cferdinandi/smooth-scroll/pull/401/
-			if(!('closest' in event.target))return;
-
-			// Check if a smooth scroll link was clicked
-			toggle = event.target.closest(selector);
-			if (!toggle || toggle.tagName.toLowerCase() !== 'a' || event.target.closest(settings.ignore)) return;
-
-			// Only run if link is an anchor and points to the current page
-			if (toggle.hostname !== window.location.hostname || toggle.pathname !== window.location.pathname || !/#/.test(toggle.href)) return;
-
-			// Get an escaped version of the hash
-			var hash = escapeCharacters(decode(toggle.hash));
-
-			// Get the anchored element
-			var anchor = settings.topOnEmptyHash && hash === '#' ? document.documentElement : document.querySelector(hash);
-			anchor = !anchor && hash === '#top' ? document.documentElement : anchor;
-
-			// If anchored element exists, scroll to it
-			if (!anchor) return;
-			event.preventDefault();
-			setHistory(settings);
-			smoothScroll.animateScroll(anchor, toggle);
-
-		};
-
-		/**
-		 * Animate scroll on popstate events
-		 */
-		var popstateHandler = function (event) {
-
-			// Stop if history.state doesn't exist (ex. if clicking on a broken anchor link).
-			// fixes `Cannot read property 'smoothScroll' of null` error getting thrown.
-			if (history.state === null) return;
-
-			// Only run if state is a popstate record for this instantiation
-			if (!history.state.smoothScroll || history.state.smoothScroll !== JSON.stringify(settings)) return;
-
-			// Only run if state includes an anchor
-
-			// if (!history.state.anchor && history.state.anchor !== 0) return;
-
-			// Get the anchor
-			var anchor = history.state.anchor;
-			if (anchor && anchor !== 0) {
-				anchor = document.querySelector(escapeCharacters(decode(history.state.anchor)));
-				if (!anchor) return;
-			}
-
-			// Animate scroll to anchor link
-			smoothScroll.animateScroll(anchor, null, {updateURL: false});
-
-		};
-
-		/**
-		 * Destroy the current initialization.
-		 */
-		smoothScroll.destroy = function () {
-
-			// If plugin isn't already initialized, stop
-			if (!settings) return;
-
-			// Remove event listeners
-			document.removeEventListener('click', clickHandler, false);
-			window.removeEventListener('popstate', popstateHandler, false);
-
-			// Cancel any scrolls-in-progress
-			smoothScroll.cancelScroll();
-
-			// Reset variables
-			settings = null;
-			anchor = null;
-			toggle = null;
-			fixedHeader = null;
-			eventTimeout = null;
-			animationInterval = null;
-
-		};
-
-		/**
-		 * Initialize Smooth Scroll
-		 * @param {Object} options User settings
-		 */
-		smoothScroll.init = function (options) {
-
-			// feature test
-			if (!supports()) throw 'Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.';
-
-			// Destroy any existing initializations
-			smoothScroll.destroy();
-
-			// Selectors and variables
-			settings = extend(defaults, options || {}); // Merge user options with defaults
-			fixedHeader = settings.header ? document.querySelector(settings.header) : null; // Get the fixed header
-
-			// When a toggle is clicked, run the click handler
-			document.addEventListener('click', clickHandler, false);
-
-			// If updateURL and popState are enabled, listen for pop events
-			if (settings.updateURL && settings.popstate) {
-				window.addEventListener('popstate', popstateHandler, false);
-			}
-
-		};
-
-
-		//
-		// Initialize plugin
-		//
-
-		smoothScroll.init(options);
-
-
-		//
-		// Public APIs
-		//
-
-		return smoothScroll;
-
-	};
-
-	return SmoothScroll;
-
-}));
diff --git a/docs/dist/smooth-scroll.min.js b/docs/dist/smooth-scroll.min.js
deleted file mode 100755
index 7bbf0c9..0000000
--- a/docs/dist/smooth-scroll.min.js
+++ /dev/null
@@ -1,2 +0,0 @@
-/*! smooth-scroll v15.1.0 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
-!(function(t,e){"function"==typeof define&&define.amd?define([],(function(){return e(t)})):"object"==typeof exports?module.exports=e(t):t.SmoothScroll=e(t)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(t){"use strict";var e={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,speedAsDuration:!1,durationMax:null,durationMin:null,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},n=function(){return"querySelector"in document&&"addEventListener"in t&&"requestAnimationFrame"in t&&"closest"in t.Element.prototype},o=function(){var t={};return Array.prototype.forEach.call(arguments,(function(e){for(var n in e){if(!e.hasOwnProperty(n))return;t[n]=e[n]}})),t},r=function(e){return!!("matchMedia"in t&&t.matchMedia("(prefers-reduced-motion)").matches)},a=function(e){return parseInt(t.getComputedStyle(e).height,10)},i=function(t){var e;try{e=decodeURIComponent(t)}catch(n){e=t}return e},u=function(t){"#"===t.charAt(0)&&(t=t.substr(1));for(var e,n=String(t),o=n.length,r=-1,a="",i=n.charCodeAt(0);++r<o;){if(0===(e=n.charCodeAt(r)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");e>=1&&e<=31||127==e||0===r&&e>=48&&e<=57||1===r&&e>=48&&e<=57&&45===i?a+="\\"+e.toString(16)+" ":a+=e>=128||45===e||95===e||e>=48&&e<=57||e>=65&&e<=90||e>=97&&e<=122?n.charAt(r):"\\"+n.charAt(r)}var u;try{u=decodeURIComponent("#"+a)}catch(t){u="#"+a}return u},c=function(t,e){var n;return"easeInQuad"===t.easing&&(n=e*e),"easeOutQuad"===t.easing&&(n=e*(2-e)),"easeInOutQuad"===t.easing&&(n=e<.5?2*e*e:(4-2*e)*e-1),"easeInCubic"===t.easing&&(n=e*e*e),"easeOutCubic"===t.easing&&(n=--e*e*e+1),"easeInOutCubic"===t.easing&&(n=e<.5?4*e*e*e:(e-1)*(2*e-2)*(2*e-2)+1),"easeInQuart"===t.easing&&(n=e*e*e*e),"easeOutQuart"===t.easing&&(n=1- --e*e*e*e),"easeInOutQuart"===t.easing&&(n=e<.5?8*e*e*e*e:1-8*--e*e*e*e),"easeInQuint"===t.easing&&(n=e*e*e*e*e),"easeOutQuint"===t.easing&&(n=1+--e*e*e*e*e),"easeInOutQuint"===t.easing&&(n=e<.5?16*e*e*e*e*e:1+16*--e*e*e*e*e),t.customEasing&&(n=t.customEasing(e)),n||e},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(e,n,o,r){var a=0;if(e.offsetParent)do{a+=e.offsetTop,e=e.offsetParent}while(e);return a=Math.max(a-n-o,0),r&&(a=Math.min(a,s()-t.innerHeight)),a},d=function(t){return t?a(t)+t.offsetTop:0},f=function(t,e){var n=e.speedAsDuration?e.speed:Math.abs(t/1e3*e.speed);return e.durationMax&&n>e.durationMax?e.durationMax:e.durationMin&&n<e.durationMin?e.durationMin:n},m=function(e){if(history.replaceState&&e.updateURL&&!history.state){var n=t.location.hash;n=n||t.pageYOffset,history.replaceState({smoothScroll:JSON.stringify(e),anchor:n||t.pageYOffset},document.title,n||t.location.href)}},h=function(t,e,n){e||history.pushState&&n.updateURL&&history.pushState({smoothScroll:JSON.stringify(n),anchor:t.id},document.title,t===document.documentElement?"#top":"#"+t.id)},p=function(e,n,o){0===e&&document.body.focus(),o||(e.focus(),document.activeElement!==e&&(e.setAttribute("tabindex","-1"),e.focus(),e.style.outline="none"),t.scrollTo(0,n))},g=function(e,n,o,r){if(n.emitEvents&&"function"==typeof t.CustomEvent){var a=new CustomEvent(e,{bubbles:!0,detail:{anchor:o,toggle:r}});document.dispatchEvent(a)}};return function(a,y){var v,S,E,b,O,I,M={};M.cancelScroll=function(t){cancelAnimationFrame(I),I=null,t||g("scrollCancel",v)},M.animateScroll=function(n,r,a){var i=o(v||e,a||{}),u="[object Number]"===Object.prototype.toString.call(n),m=u||!n.tagName?null:n;if(u||m){var y=t.pageYOffset;i.header&&!b&&(b=document.querySelector(i.header));var S,E,O,A=d(b),C=u?n:l(m,A,parseInt("function"==typeof i.offset?i.offset(n,r):i.offset,10),i.clip),w=C-y,L=s(),H=0,q=f(w,i),x=function(e,o){var a=t.pageYOffset;if(e==o||a==o||(y<o&&t.innerHeight+a)>=L)return M.cancelScroll(!0),p(n,o,u),g("scrollStop",i,n,r),S=null,I=null,!0},Q=function(e){S||(S=e),H+=e-S,E=H/parseInt(q,10),E=E>1?1:E,O=y+w*c(i,E),t.scrollTo(0,Math.floor(O)),x(O,C)||(I=t.requestAnimationFrame(Q),S=e)};0===t.pageYOffset&&t.scrollTo(0,0),h(n,u,i),g("scrollStart",i,n,r),M.cancelScroll(!0),t.requestAnimationFrame(Q)}};var A=function(e){if(!r()&&0===e.button&&!e.metaKey&&!e.ctrlKey&&"closest"in e.target&&(E=e.target.closest(a))&&"a"===E.tagName.toLowerCase()&&!e.target.closest(v.ignore)&&E.hostname===t.location.hostname&&E.pathname===t.location.pathname&&/#/.test(E.href)){var n=u(i(E.hash)),o=v.topOnEmptyHash&&"#"===n?document.documentElement:document.querySelector(n);o=o||"#top"!==n?o:document.documentElement,o&&(e.preventDefault(),m(v),M.animateScroll(o,E))}},C=function(t){if(null!==history.state&&history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(v)){var e=history.state.anchor;e&&0!==e&&!(e=document.querySelector(u(i(history.state.anchor))))||M.animateScroll(e,null,{updateURL:!1})}};return M.destroy=function(){v&&(document.removeEventListener("click",A,!1),t.removeEventListener("popstate",C,!1),M.cancelScroll(),v=null,S=null,E=null,b=null,O=null,I=null)},M.init=function(r){if(!n())throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";M.destroy(),v=o(e,r||{}),b=v.header?document.querySelector(v.header):null,document.addEventListener("click",A,!1),v.updateURL&&v.popstate&&t.addEventListener("popstate",C,!1)},M.init(y),M}}));
\ No newline at end of file
diff --git a/docs/dist/smooth-scroll.polyfills.js b/docs/dist/smooth-scroll.polyfills.js
deleted file mode 100755
index fa8dfa4..0000000
--- a/docs/dist/smooth-scroll.polyfills.js
+++ /dev/null
@@ -1,719 +0,0 @@
-/*!
- * smooth-scroll v15.1.0: Animate scrolling to anchor links
- * (c) 2018 Chris Ferdinandi
- * MIT License
- * http://github.com/cferdinandi/smooth-scroll
- */
-
-/**
- * closest() polyfill
- * @link https://developer.mozilla.org/en-US/docs/Web/API/Element/closest#Polyfill
- */
-if (window.Element && !Element.prototype.closest) {
-	Element.prototype.closest = function(s) {
-		var matches = (this.document || this.ownerDocument).querySelectorAll(s),
-			i,
-			el = this;
-		do {
-			i = matches.length;
-			while (--i >= 0 && matches.item(i) !== el) {}
-		} while ((i < 0) && (el = el.parentElement));
-		return el;
-	};
-}
-
-/**
- * CustomEvent() polyfill
- * https://developer.mozilla.org/en-US/docs/Web/API/CustomEvent/CustomEvent#Polyfill
- */
-(function () {
-
-	if (typeof window.CustomEvent === "function") return false;
-
-	function CustomEvent(event, params) {
-		params = params || { bubbles: false, cancelable: false, detail: undefined };
-		var evt = document.createEvent('CustomEvent');
-		evt.initCustomEvent(event, params.bubbles, params.cancelable, params.detail);
-		return evt;
-	}
-
-	CustomEvent.prototype = window.Event.prototype;
-
-	window.CustomEvent = CustomEvent;
-})();
-/**
- * requestAnimationFrame() polyfill
- * By Erik Möller. Fixes from Paul Irish and Tino Zijdel.
- * @link http://paulirish.com/2011/requestanimationframe-for-smart-animating/
- * @link http://my.opera.com/emoller/blog/2011/12/20/requestanimationframe-for-smart-er-animating
- * @license MIT
- */
-(function() {
-	var lastTime = 0;
-	var vendors = ['ms', 'moz', 'webkit', 'o'];
-	for(var x = 0; x < vendors.length && !window.requestAnimationFrame; ++x) {
-		window.requestAnimationFrame = window[vendors[x]+'RequestAnimationFrame'];
-		window.cancelAnimationFrame = window[vendors[x]+'CancelAnimationFrame'] ||
-		                              window[vendors[x]+'CancelRequestAnimationFrame'];
-	}
-
-	if (!window.requestAnimationFrame) {
-		window.requestAnimationFrame = function(callback, element) {
-			var currTime = new Date().getTime();
-			var timeToCall = Math.max(0, 16 - (currTime - lastTime));
-			var id = window.setTimeout((function() { callback(currTime + timeToCall); }),
-				timeToCall);
-			lastTime = currTime + timeToCall;
-			return id;
-		};
-	}
-
-	if (!window.cancelAnimationFrame) {
-		window.cancelAnimationFrame = function(id) {
-			clearTimeout(id);
-		};
-	}
-}());
-
-(function (root, factory) {
-	if (typeof define === 'function' && define.amd) {
-		define([], (function () {
-			return factory(root);
-		}));
-	} else if (typeof exports === 'object') {
-		module.exports = factory(root);
-	} else {
-		root.SmoothScroll = factory(root);
-	}
-})(typeof global !== 'undefined' ? global : typeof window !== 'undefined' ? window : this, (function (window) {
-
-	'use strict';
-
-	//
-	// Default settings
-	//
-
-	var defaults = {
-
-		// Selectors
-		ignore: '[data-scroll-ignore]',
-		header: null,
-		topOnEmptyHash: true,
-
-		// Speed & Duration
-		speed: 500,
-		speedAsDuration: false,
-		durationMax: null,
-		durationMin: null,
-		clip: true,
-		offset: 0,
-
-		// Easing
-		easing: 'easeInOutCubic',
-		customEasing: null,
-
-		// History
-		updateURL: true,
-		popstate: true,
-
-		// Custom Events
-		emitEvents: true
-
-	};
-
-
-	//
-	// Utility Methods
-	//
-
-	/**
-	 * Check if browser supports required methods
-	 * @return {Boolean} Returns true if all required methods are supported
-	 */
-	var supports = function () {
-		return (
-			'querySelector' in document &&
-			'addEventListener' in window &&
-			'requestAnimationFrame' in window &&
-			'closest' in window.Element.prototype
-		);
-	};
-
-	/**
-	 * Merge two or more objects together.
-	 * @param   {Object}   objects  The objects to merge together
-	 * @returns {Object}            Merged values of defaults and options
-	 */
-	var extend = function () {
-		var merged = {};
-		Array.prototype.forEach.call(arguments, (function (obj) {
-			for (var key in obj) {
-				if (!obj.hasOwnProperty(key)) return;
-				merged[key] = obj[key];
-			}
-		}));
-		return merged;
-	};
-
-	/**
-	 * Check to see if user prefers reduced motion
-	 * @param  {Object} settings Script settings
-	 */
-	var reduceMotion = function (settings) {
-		if ('matchMedia' in window && window.matchMedia('(prefers-reduced-motion)').matches) {
-			return true;
-		}
-		return false;
-	};
-
-	/**
-	 * Get the height of an element.
-	 * @param  {Node} elem The element to get the height of
-	 * @return {Number}    The element's height in pixels
-	 */
-	var getHeight = function (elem) {
-		return parseInt(window.getComputedStyle(elem).height, 10);
-	};
-
-	/**
-	 * Decode a URI, with error check
-	 * @param  {String} hash The URI to decode
-	 * @return {String}      A decoded URI (or the original string if an error is thrown)
-	 */
-	var decode = function (hash) {
-		var decoded;
-		try {
-			decoded = decodeURIComponent(hash);
-		} catch(e) {
-			decoded = hash;
-		}
-		return decoded;
-	};
-
-	/**
-	 * Escape special characters for use with querySelector
-	 * @author Mathias Bynens
-	 * @link https://github.com/mathiasbynens/CSS.escape
-	 * @param {String} id The anchor ID to escape
-	 */
-	var escapeCharacters = function (id) {
-
-		// Remove leading hash
-		if (id.charAt(0) === '#') {
-			id = id.substr(1);
-		}
-
-		var string = String(id);
-		var length = string.length;
-		var index = -1;
-		var codeUnit;
-		var result = '';
-		var firstCodeUnit = string.charCodeAt(0);
-		while (++index < length) {
-			codeUnit = string.charCodeAt(index);
-			// Note: there’s no need to special-case astral symbols, surrogate
-			// pairs, or lone surrogates.
-
-			// If the character is NULL (U+0000), then throw an
-			// `InvalidCharacterError` exception and terminate these steps.
-			if (codeUnit === 0x0000) {
-				throw new InvalidCharacterError(
-					'Invalid character: the input contains U+0000.'
-				);
-			}
-
-			if (
-				// If the character is in the range [\1-\1F] (U+0001 to U+001F) or is
-				// U+007F, […]
-				(codeUnit >= 0x0001 && codeUnit <= 0x001F) || codeUnit == 0x007F ||
-				// If the character is the first character and is in the range [0-9]
-				// (U+0030 to U+0039), […]
-				(index === 0 && codeUnit >= 0x0030 && codeUnit <= 0x0039) ||
-				// If the character is the second character and is in the range [0-9]
-				// (U+0030 to U+0039) and the first character is a `-` (U+002D), […]
-				(
-					index === 1 &&
-					codeUnit >= 0x0030 && codeUnit <= 0x0039 &&
-					firstCodeUnit === 0x002D
-				)
-			) {
-				// http://dev.w3.org/csswg/cssom/#escape-a-character-as-code-point
-				result += '\\' + codeUnit.toString(16) + ' ';
-				continue;
-			}
-
-			// If the character is not handled by one of the above rules and is
-			// greater than or equal to U+0080, is `-` (U+002D) or `_` (U+005F), or
-			// is in one of the ranges [0-9] (U+0030 to U+0039), [A-Z] (U+0041 to
-			// U+005A), or [a-z] (U+0061 to U+007A), […]
-			if (
-				codeUnit >= 0x0080 ||
-				codeUnit === 0x002D ||
-				codeUnit === 0x005F ||
-				codeUnit >= 0x0030 && codeUnit <= 0x0039 ||
-				codeUnit >= 0x0041 && codeUnit <= 0x005A ||
-				codeUnit >= 0x0061 && codeUnit <= 0x007A
-			) {
-				// the character itself
-				result += string.charAt(index);
-				continue;
-			}
-
-			// Otherwise, the escaped character.
-			// http://dev.w3.org/csswg/cssom/#escape-a-character
-			result += '\\' + string.charAt(index);
-
-		}
-
-		// Return sanitized hash
-		var hash;
-		try {
-			hash = decodeURIComponent('#' + result);
-		} catch(e) {
-			hash = '#' + result;
-		}
-		return hash;
-
-	};
-
-	/**
-	 * Calculate the easing pattern
-	 * @link https://gist.github.com/gre/1650294
-	 * @param {String} type Easing pattern
-	 * @param {Number} time Time animation should take to complete
-	 * @returns {Number}
-	 */
-	var easingPattern = function (settings, time) {
-		var pattern;
-
-		// Default Easing Patterns
-		if (settings.easing === 'easeInQuad') pattern = time * time; // accelerating from zero velocity
-		if (settings.easing === 'easeOutQuad') pattern = time * (2 - time); // decelerating to zero velocity
-		if (settings.easing === 'easeInOutQuad') pattern = time < 0.5 ? 2 * time * time : -1 + (4 - 2 * time) * time; // acceleration until halfway, then deceleration
-		if (settings.easing === 'easeInCubic') pattern = time * time * time; // accelerating from zero velocity
-		if (settings.easing === 'easeOutCubic') pattern = (--time) * time * time + 1; // decelerating to zero velocity
-		if (settings.easing === 'easeInOutCubic') pattern = time < 0.5 ? 4 * time * time * time : (time - 1) * (2 * time - 2) * (2 * time - 2) + 1; // acceleration until halfway, then deceleration
-		if (settings.easing === 'easeInQuart') pattern = time * time * time * time; // accelerating from zero velocity
-		if (settings.easing === 'easeOutQuart') pattern = 1 - (--time) * time * time * time; // decelerating to zero velocity
-		if (settings.easing === 'easeInOutQuart') pattern = time < 0.5 ? 8 * time * time * time * time : 1 - 8 * (--time) * time * time * time; // acceleration until halfway, then deceleration
-		if (settings.easing === 'easeInQuint') pattern = time * time * time * time * time; // accelerating from zero velocity
-		if (settings.easing === 'easeOutQuint') pattern = 1 + (--time) * time * time * time * time; // decelerating to zero velocity
-		if (settings.easing === 'easeInOutQuint') pattern = time < 0.5 ? 16 * time * time * time * time * time : 1 + 16 * (--time) * time * time * time * time; // acceleration until halfway, then deceleration
-
-		// Custom Easing Patterns
-		if (!!settings.customEasing) pattern = settings.customEasing(time);
-
-		return pattern || time; // no easing, no acceleration
-	};
-
-	/**
-	 * Determine the document's height
-	 * @returns {Number}
-	 */
-	var getDocumentHeight = function () {
-		return Math.max(
-			document.body.scrollHeight, document.documentElement.scrollHeight,
-			document.body.offsetHeight, document.documentElement.offsetHeight,
-			document.body.clientHeight, document.documentElement.clientHeight
-		);
-	};
-
-	/**
-	 * Calculate how far to scroll
-	 * Clip support added by robjtede - https://github.com/cferdinandi/smooth-scroll/issues/405
-	 * @param {Element} anchor       The anchor element to scroll to
-	 * @param {Number}  headerHeight Height of a fixed header, if any
-	 * @param {Number}  offset       Number of pixels by which to offset scroll
-	 * @param {Boolean} clip         If true, adjust scroll distance to prevent abrupt stops near the bottom of the page
-	 * @returns {Number}
-	 */
-	var getEndLocation = function (anchor, headerHeight, offset, clip) {
-		var location = 0;
-		if (anchor.offsetParent) {
-			do {
-				location += anchor.offsetTop;
-				anchor = anchor.offsetParent;
-			} while (anchor);
-		}
-		location = Math.max(location - headerHeight - offset, 0);
-		if (clip) {
-			location = Math.min(location, getDocumentHeight() - window.innerHeight);
-		}
- 		return location;
-	};
-
-	/**
-	 * Get the height of the fixed header
-	 * @param  {Node}   header The header
-	 * @return {Number}        The height of the header
-	 */
-	var getHeaderHeight = function (header) {
-		return !header ? 0 : (getHeight(header) + header.offsetTop);
-	};
-
-	/**
-	 * Calculate the speed to use for the animation
-	 * @param  {Number} distance The distance to travel
-	 * @param  {Object} settings The plugin settings
-	 * @return {Number}          How fast to animate
-	 */
-	var getSpeed = function (distance, settings) {
-		var speed = settings.speedAsDuration ? settings.speed : Math.abs(distance / 1000 * settings.speed);
-		if (settings.durationMax && speed > settings.durationMax) return settings.durationMax;
-		if (settings.durationMin && speed < settings.durationMin) return settings.durationMin;
-		return speed;
-	};
-
-	var setHistory = function (options) {
-
-		// Make sure this should run
-		if (!history.replaceState || !options.updateURL || history.state) return;
-
-		// Get the hash to use
-		var hash = window.location.hash;
-		hash = hash ? hash : window.pageYOffset;
-
-		// Set a default history
-		history.replaceState(
-			{
-				smoothScroll: JSON.stringify(options),
-				anchor: hash ? hash : window.pageYOffset
-			},
-			document.title,
-			hash ? hash : window.location.href
-		);
-
-	};
-
-	/**
-	 * Update the URL
-	 * @param  {Node}    anchor  The anchor that was scrolled to
-	 * @param  {Boolean} isNum   If true, anchor is a number
-	 * @param  {Object}  options Settings for Smooth Scroll
-	 */
-	var updateURL = function (anchor, isNum, options) {
-
-		// Bail if the anchor is a number
-		if (isNum) return;
-
-		// Verify that pushState is supported and the updateURL option is enabled
-		if (!history.pushState || !options.updateURL) return;
-
-		// Update URL
-		history.pushState(
-			{
-				smoothScroll: JSON.stringify(options),
-				anchor: anchor.id
-			},
-			document.title,
-			anchor === document.documentElement ? '#top' : '#' + anchor.id
-		);
-
-	};
-
-	/**
-	 * Bring the anchored element into focus
-	 * @param {Node}     anchor      The anchor element
-	 * @param {Number}   endLocation The end location to scroll to
-	 * @param {Boolean}  isNum       If true, scroll is to a position rather than an element
-	 */
-	var adjustFocus = function (anchor, endLocation, isNum) {
-
-		// Is scrolling to top of page, blur
-		if (anchor === 0) {
-			document.body.focus();
-		}
-
-		// Don't run if scrolling to a number on the page
-		if (isNum) return;
-
-		// Otherwise, bring anchor element into focus
-		anchor.focus();
-		if (document.activeElement !== anchor) {
-			anchor.setAttribute('tabindex', '-1');
-			anchor.focus();
-			anchor.style.outline = 'none';
-		}
-		window.scrollTo(0 , endLocation);
-
-	};
-
-	/**
-	 * Emit a custom event
-	 * @param  {String} type    The event type
-	 * @param  {Object} options The settings object
-	 * @param  {Node}   anchor  The anchor element
-	 * @param  {Node}   toggle  The toggle element
-	 */
-	var emitEvent = function (type, options, anchor, toggle) {
-		if (!options.emitEvents || typeof window.CustomEvent !== 'function') return;
-		var event = new CustomEvent(type, {
-			bubbles: true,
-			detail: {
-				anchor: anchor,
-				toggle: toggle
-			}
-		});
-		document.dispatchEvent(event);
-	};
-
-
-	//
-	// SmoothScroll Constructor
-	//
-
-	var SmoothScroll = function (selector, options) {
-
-		//
-		// Variables
-		//
-
-		var smoothScroll = {}; // Object for public APIs
-		var settings, anchor, toggle, fixedHeader, eventTimeout, animationInterval;
-
-
-		//
-		// Methods
-		//
-
-		/**
-		 * Cancel a scroll-in-progress
-		 */
-		smoothScroll.cancelScroll = function (noEvent) {
-			cancelAnimationFrame(animationInterval);
-			animationInterval = null;
-			if (noEvent) return;
-			emitEvent('scrollCancel', settings);
-		};
-
-		/**
-		 * Start/stop the scrolling animation
-		 * @param {Node|Number} anchor  The element or position to scroll to
-		 * @param {Element}     toggle  The element that toggled the scroll event
-		 * @param {Object}      options
-		 */
-		smoothScroll.animateScroll = function (anchor, toggle, options) {
-
-			// Local settings
-			var _settings = extend(settings || defaults, options || {}); // Merge user options with defaults
-
-			// Selectors and variables
-			var isNum = Object.prototype.toString.call(anchor) === '[object Number]' ? true : false;
-			var anchorElem = isNum || !anchor.tagName ? null : anchor;
-			if (!isNum && !anchorElem) return;
-			var startLocation = window.pageYOffset; // Current location on the page
-			if (_settings.header && !fixedHeader) {
-				// Get the fixed header if not already set
-				fixedHeader = document.querySelector(_settings.header);
-			}
-			var headerHeight = getHeaderHeight(fixedHeader);
-			var endLocation = isNum ? anchor : getEndLocation(anchorElem, headerHeight, parseInt((typeof _settings.offset === 'function' ? _settings.offset(anchor, toggle) : _settings.offset), 10), _settings.clip); // Location to scroll to
-			var distance = endLocation - startLocation; // distance to travel
-			var documentHeight = getDocumentHeight();
-			var timeLapsed = 0;
-			var speed = getSpeed(distance, _settings);
-			var start, percentage, position;
-
-			/**
-			 * Stop the scroll animation when it reaches its target (or the bottom/top of page)
-			 * @param {Number} position Current position on the page
-			 * @param {Number} endLocation Scroll to location
-			 * @param {Number} animationInterval How much to scroll on this loop
-			 */
-			var stopAnimateScroll = function (position, endLocation) {
-
-				// Get the current location
-				var currentLocation = window.pageYOffset;
-
-				// Check if the end location has been reached yet (or we've hit the end of the document)
-				if (position == endLocation || currentLocation == endLocation || ((startLocation < endLocation && window.innerHeight + currentLocation) >= documentHeight)) {
-
-					// Clear the animation timer
-					smoothScroll.cancelScroll(true);
-
-					// Bring the anchored element into focus
-					adjustFocus(anchor, endLocation, isNum);
-
-					// Emit a custom event
-					emitEvent('scrollStop', _settings, anchor, toggle);
-
-					// Reset start
-					start = null;
-					animationInterval = null;
-
-					return true;
-
-				}
-			};
-
-			/**
-			 * Loop scrolling animation
-			 */
-			var loopAnimateScroll = function (timestamp) {
-				if (!start) { start = timestamp; }
-				timeLapsed += timestamp - start;
-				percentage = (timeLapsed / parseInt(speed, 10));
-				percentage = (percentage > 1) ? 1 : percentage;
-				position = startLocation + (distance * easingPattern(_settings, percentage));
-				window.scrollTo(0, Math.floor(position));
-				if (!stopAnimateScroll(position, endLocation)) {
-					animationInterval = window.requestAnimationFrame(loopAnimateScroll);
-					start = timestamp;
-				}
-			};
-
-			/**
-			 * Reset position to fix weird iOS bug
-			 * @link https://github.com/cferdinandi/smooth-scroll/issues/45
-			 */
-			if (window.pageYOffset === 0) {
-				window.scrollTo(0, 0);
-			}
-
-			// Update the URL
-			updateURL(anchor, isNum, _settings);
-
-			// Emit a custom event
-			emitEvent('scrollStart', _settings, anchor, toggle);
-
-			// Start scrolling animation
-			smoothScroll.cancelScroll(true);
-			window.requestAnimationFrame(loopAnimateScroll);
-
-		};
-
-		/**
-		 * If smooth scroll element clicked, animate scroll
-		 */
-		var clickHandler = function (event) {
-
-			// Don't run if the user prefers reduced motion
-			if (reduceMotion(settings)) return;
-
-			// Don't run if right-click or command/control + click
-			if (event.button !== 0 || event.metaKey || event.ctrlKey) return;
-
-			// Check if event.target has closest() method
-			// By @totegi - https://github.com/cferdinandi/smooth-scroll/pull/401/
-			if(!('closest' in event.target))return;
-
-			// Check if a smooth scroll link was clicked
-			toggle = event.target.closest(selector);
-			if (!toggle || toggle.tagName.toLowerCase() !== 'a' || event.target.closest(settings.ignore)) return;
-
-			// Only run if link is an anchor and points to the current page
-			if (toggle.hostname !== window.location.hostname || toggle.pathname !== window.location.pathname || !/#/.test(toggle.href)) return;
-
-			// Get an escaped version of the hash
-			var hash = escapeCharacters(decode(toggle.hash));
-
-			// Get the anchored element
-			var anchor = settings.topOnEmptyHash && hash === '#' ? document.documentElement : document.querySelector(hash);
-			anchor = !anchor && hash === '#top' ? document.documentElement : anchor;
-
-			// If anchored element exists, scroll to it
-			if (!anchor) return;
-			event.preventDefault();
-			setHistory(settings);
-			smoothScroll.animateScroll(anchor, toggle);
-
-		};
-
-		/**
-		 * Animate scroll on popstate events
-		 */
-		var popstateHandler = function (event) {
-
-			// Stop if history.state doesn't exist (ex. if clicking on a broken anchor link).
-			// fixes `Cannot read property 'smoothScroll' of null` error getting thrown.
-			if (history.state === null) return;
-
-			// Only run if state is a popstate record for this instantiation
-			if (!history.state.smoothScroll || history.state.smoothScroll !== JSON.stringify(settings)) return;
-
-			// Only run if state includes an anchor
-
-			// if (!history.state.anchor && history.state.anchor !== 0) return;
-
-			// Get the anchor
-			var anchor = history.state.anchor;
-			if (anchor && anchor !== 0) {
-				anchor = document.querySelector(escapeCharacters(decode(history.state.anchor)));
-				if (!anchor) return;
-			}
-
-			// Animate scroll to anchor link
-			smoothScroll.animateScroll(anchor, null, {updateURL: false});
-
-		};
-
-		/**
-		 * Destroy the current initialization.
-		 */
-		smoothScroll.destroy = function () {
-
-			// If plugin isn't already initialized, stop
-			if (!settings) return;
-
-			// Remove event listeners
-			document.removeEventListener('click', clickHandler, false);
-			window.removeEventListener('popstate', popstateHandler, false);
-
-			// Cancel any scrolls-in-progress
-			smoothScroll.cancelScroll();
-
-			// Reset variables
-			settings = null;
-			anchor = null;
-			toggle = null;
-			fixedHeader = null;
-			eventTimeout = null;
-			animationInterval = null;
-
-		};
-
-		/**
-		 * Initialize Smooth Scroll
-		 * @param {Object} options User settings
-		 */
-		smoothScroll.init = function (options) {
-
-			// feature test
-			if (!supports()) throw 'Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.';
-
-			// Destroy any existing initializations
-			smoothScroll.destroy();
-
-			// Selectors and variables
-			settings = extend(defaults, options || {}); // Merge user options with defaults
-			fixedHeader = settings.header ? document.querySelector(settings.header) : null; // Get the fixed header
-
-			// When a toggle is clicked, run the click handler
-			document.addEventListener('click', clickHandler, false);
-
-			// If updateURL and popState are enabled, listen for pop events
-			if (settings.updateURL && settings.popstate) {
-				window.addEventListener('popstate', popstateHandler, false);
-			}
-
-		};
-
-
-		//
-		// Initialize plugin
-		//
-
-		smoothScroll.init(options);
-
-
-		//
-		// Public APIs
-		//
-
-		return smoothScroll;
-
-	};
-
-	return SmoothScroll;
-
-}));
diff --git a/docs/dist/smooth-scroll.polyfills.min.js b/docs/dist/smooth-scroll.polyfills.min.js
deleted file mode 100755
index ba23c2a..0000000
--- a/docs/dist/smooth-scroll.polyfills.min.js
+++ /dev/null
@@ -1,2 +0,0 @@
-/*! smooth-scroll v15.1.0 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
-window.Element&&!Element.prototype.closest&&(Element.prototype.closest=function(e){var t,n=(this.document||this.ownerDocument).querySelectorAll(e),o=this;do{for(t=n.length;--t>=0&&n.item(t)!==o;);}while(t<0&&(o=o.parentElement));return o}),(function(){function e(e,t){t=t||{bubbles:!1,cancelable:!1,detail:void 0};var n=document.createEvent("CustomEvent");return n.initCustomEvent(e,t.bubbles,t.cancelable,t.detail),n}if("function"==typeof window.CustomEvent)return!1;e.prototype=window.Event.prototype,window.CustomEvent=e})(),(function(){for(var e=0,t=["ms","moz","webkit","o"],n=0;n<t.length&&!window.requestAnimationFrame;++n)window.requestAnimationFrame=window[t[n]+"RequestAnimationFrame"],window.cancelAnimationFrame=window[t[n]+"CancelAnimationFrame"]||window[t[n]+"CancelRequestAnimationFrame"];window.requestAnimationFrame||(window.requestAnimationFrame=function(t,n){var o=(new Date).getTime(),a=Math.max(0,16-(o-e)),r=window.setTimeout((function(){t(o+a)}),a);return e=o+a,r}),window.cancelAnimationFrame||(window.cancelAnimationFrame=function(e){clearTimeout(e)})})(),(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(e){"use strict";var t={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,speedAsDuration:!1,durationMax:null,durationMin:null,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},n=function(){return"querySelector"in document&&"addEventListener"in e&&"requestAnimationFrame"in e&&"closest"in e.Element.prototype},o=function(){var e={};return Array.prototype.forEach.call(arguments,(function(t){for(var n in t){if(!t.hasOwnProperty(n))return;e[n]=t[n]}})),e},a=function(t){return!!("matchMedia"in e&&e.matchMedia("(prefers-reduced-motion)").matches)},r=function(t){return parseInt(e.getComputedStyle(t).height,10)},i=function(e){var t;try{t=decodeURIComponent(e)}catch(n){t=e}return t},u=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,a=-1,r="",i=n.charCodeAt(0);++a<o;){if(0===(t=n.charCodeAt(a)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===a&&t>=48&&t<=57||1===a&&t>=48&&t<=57&&45===i?r+="\\"+t.toString(16)+" ":r+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(a):"\\"+n.charAt(a)}var u;try{u=decodeURIComponent("#"+r)}catch(e){u="#"+r}return u},c=function(e,t){var n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t},s=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},l=function(t,n,o,a){var r=0;if(t.offsetParent)do{r+=t.offsetTop,t=t.offsetParent}while(t);return r=Math.max(r-n-o,0),a&&(r=Math.min(r,s()-e.innerHeight)),r},m=function(e){return e?r(e)+e.offsetTop:0},d=function(e,t){var n=t.speedAsDuration?t.speed:Math.abs(e/1e3*t.speed);return t.durationMax&&n>t.durationMax?t.durationMax:t.durationMin&&n<t.durationMin?t.durationMin:n},f=function(t){if(history.replaceState&&t.updateURL&&!history.state){var n=e.location.hash;n=n||e.pageYOffset,history.replaceState({smoothScroll:JSON.stringify(t),anchor:n||e.pageYOffset},document.title,n||e.location.href)}},h=function(e,t,n){t||history.pushState&&n.updateURL&&history.pushState({smoothScroll:JSON.stringify(n),anchor:e.id},document.title,e===document.documentElement?"#top":"#"+e.id)},p=function(t,n,o){0===t&&document.body.focus(),o||(t.focus(),document.activeElement!==t&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),e.scrollTo(0,n))},g=function(t,n,o,a){if(n.emitEvents&&"function"==typeof e.CustomEvent){var r=new CustomEvent(t,{bubbles:!0,detail:{anchor:o,toggle:a}});document.dispatchEvent(r)}};return function(r,y){var v,w,E,S,b,A,O={};O.cancelScroll=function(e){cancelAnimationFrame(A),A=null,e||g("scrollCancel",v)},O.animateScroll=function(n,a,r){var i=o(v||t,r||{}),u="[object Number]"===Object.prototype.toString.call(n),f=u||!n.tagName?null:n;if(u||f){var y=e.pageYOffset;i.header&&!S&&(S=document.querySelector(i.header));var w,E,b,C=m(S),I=u?n:l(f,C,parseInt("function"==typeof i.offset?i.offset(n,a):i.offset,10),i.clip),q=I-y,M=s(),F=0,L=d(q,i),x=function(t,o){var r=e.pageYOffset;if(t==o||r==o||(y<o&&e.innerHeight+r)>=M)return O.cancelScroll(!0),p(n,o,u),g("scrollStop",i,n,a),w=null,A=null,!0},H=function(t){w||(w=t),F+=t-w,E=F/parseInt(L,10),E=E>1?1:E,b=y+q*c(i,E),e.scrollTo(0,Math.floor(b)),x(b,I)||(A=e.requestAnimationFrame(H),w=t)};0===e.pageYOffset&&e.scrollTo(0,0),h(n,u,i),g("scrollStart",i,n,a),O.cancelScroll(!0),e.requestAnimationFrame(H)}};var C=function(t){if(!a()&&0===t.button&&!t.metaKey&&!t.ctrlKey&&"closest"in t.target&&(E=t.target.closest(r))&&"a"===E.tagName.toLowerCase()&&!t.target.closest(v.ignore)&&E.hostname===e.location.hostname&&E.pathname===e.location.pathname&&/#/.test(E.href)){var n=u(i(E.hash)),o=v.topOnEmptyHash&&"#"===n?document.documentElement:document.querySelector(n);o=o||"#top"!==n?o:document.documentElement,o&&(t.preventDefault(),f(v),O.animateScroll(o,E))}},I=function(e){if(null!==history.state&&history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(v)){var t=history.state.anchor;t&&0!==t&&!(t=document.querySelector(u(i(history.state.anchor))))||O.animateScroll(t,null,{updateURL:!1})}};return O.destroy=function(){v&&(document.removeEventListener("click",C,!1),e.removeEventListener("popstate",I,!1),O.cancelScroll(),v=null,w=null,E=null,S=null,b=null,A=null)},O.init=function(a){if(!n())throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";O.destroy(),v=o(t,a||{}),S=v.header?document.querySelector(v.header):null,document.addEventListener("click",C,!1),v.updateURL&&v.popstate&&e.addEventListener("popstate",I,!1)},O.init(y),O}}));
\ No newline at end of file
diff --git a/gulpfile.js b/gulpfile.js
index b203512..0b20e1e 100755
--- a/gulpfile.js
+++ b/gulpfile.js
@@ -36,9 +36,9 @@ var paths = {
 	},
 	copy: {
 		input: 'src/copy/*',
-		output: 'docs/'
+		output: './'
 	},
-	reload: './docs'
+	reload: './'
 };
 
 
diff --git a/docs/index.html b/index.html
similarity index 98%
rename from docs/index.html
rename to index.html
index f0d477a..74c0f43 100755
--- a/docs/index.html
+++ b/index.html
@@ -91,7 +91,7 @@ <h1>Smooth Scroll</h1>
 		</main>
 
 		<!-- Javascript -->
-		<script src="http://github.com/dist/smooth-scroll.polyfills.js"></script>
+		<script src="http://github.com/dist/smooth-scroll.polyfills.js"></script>
 		<script>
 
 			// Instantiate Scrolls
diff --git a/package.json b/package.json
index 84b754c..a13f4ce 100755
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
 	"name": "smooth-scroll",
-	"version": "15.1.2",
+	"version": "15.1.3",
 	"description": "Animate scrolling to anchor links",
 	"main": "./dist/smooth-scroll.polyfills.min.js",
 	"author": {
diff --git a/docs/speed.html b/speed.html
similarity index 96%
rename from docs/speed.html
rename to speed.html
index 3138aea..21c834a 100644
--- a/docs/speed.html
+++ b/speed.html
@@ -59,7 +59,7 @@ <h1>Smooth Scroll</h1>
 		</main>
 
 		<!-- Javascript -->
-		<script src="http://github.com/dist/smooth-scroll.polyfills.js"></script>
+		<script src="http://github.com/dist/smooth-scroll.polyfills.js"></script>
 		<script>
 			var scroll = new SmoothScroll('a[href*="#"]');
 		</script>
diff --git a/src/copy/index.html b/src/copy/index.html
index f0d477a..74c0f43 100755
--- a/src/copy/index.html
+++ b/src/copy/index.html
@@ -91,7 +91,7 @@ <h1>Smooth Scroll</h1>
 		</main>
 
 		<!-- Javascript -->
-		<script src="http://github.com/dist/smooth-scroll.polyfills.js"></script>
+		<script src="http://github.com/dist/smooth-scroll.polyfills.js"></script>
 		<script>
 
 			// Instantiate Scrolls
diff --git a/src/copy/speed.html b/src/copy/speed.html
index 3138aea..21c834a 100644
--- a/src/copy/speed.html
+++ b/src/copy/speed.html
@@ -59,7 +59,7 @@ <h1>Smooth Scroll</h1>
 		</main>
 
 		<!-- Javascript -->
-		<script src="http://github.com/dist/smooth-scroll.polyfills.js"></script>
+		<script src="http://github.com/dist/smooth-scroll.polyfills.js"></script>
 		<script>
 			var scroll = new SmoothScroll('a[href*="#"]');
 		</script>
diff --git a/src/js/smooth-scroll/smooth-scroll.js b/src/js/smooth-scroll/smooth-scroll.js
index 2db1601..7b75647 100755
--- a/src/js/smooth-scroll/smooth-scroll.js
+++ b/src/js/smooth-scroll/smooth-scroll.js
@@ -263,7 +263,7 @@
 		var speed = settings.speedAsDuration ? settings.speed : Math.abs(distance / 1000 * settings.speed);
 		if (settings.durationMax && speed > settings.durationMax) return settings.durationMax;
 		if (settings.durationMin && speed < settings.durationMin) return settings.durationMin;
-		return speed;
+		return parseInt(speed, 10);
 	};
 
 	var setHistory = function (options) {
@@ -396,6 +396,9 @@
 		 */
 		smoothScroll.animateScroll = function (anchor, toggle, options) {
 
+			// Cancel any in progress scrolls
+			smoothScroll.cancelScroll();
+
 			// Local settings
 			var _settings = extend(settings || defaults, options || {}); // Merge user options with defaults
 
@@ -454,7 +457,7 @@
 			var loopAnimateScroll = function (timestamp) {
 				if (!start) { start = timestamp; }
 				timeLapsed += timestamp - start;
-				percentage = (timeLapsed / parseInt(speed, 10));
+				percentage = speed === 0 ? 0 : (timeLapsed / speed);
 				percentage = (percentage > 1) ? 1 : percentage;
 				position = startLocation + (distance * easingPattern(_settings, percentage));
 				window.scrollTo(0, Math.floor(position));

From b27406f4240b29a3a3c809c6e7b9b52ae539eb0d Mon Sep 17 00:00:00 2001
From: cferdinandi <chris@gomakethings.com>
Date: Tue, 18 Dec 2018 16:19:09 -0500
Subject: [PATCH 25/51] Updated Gulp version

---
 package.json | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/package.json b/package.json
index a13f4ce..ee14e4b 100755
--- a/package.json
+++ b/package.json
@@ -13,7 +13,7 @@
 		"url": "http://github.com/cferdinandi/smooth-scroll"
 	},
 	"devDependencies": {
-		"gulp": "next",
+		"gulp": "4.0.0",
 		"del": "3.0.0",
 		"lazypipe": "1.0.1",
 		"gulp-flatmap": "1.0.2",

From 6dfd33f68bc20c6ebf48045713c0eb8e9baaab03 Mon Sep 17 00:00:00 2001
From: Chris Ferdinandi <cferdinandi@users.noreply.github.com>
Date: Wed, 9 Jan 2019 16:43:05 -0500
Subject: [PATCH 26/51] Add npm publish option

---
 .github/main.workflow | 9 +++++++++
 1 file changed, 9 insertions(+)
 create mode 100644 .github/main.workflow

diff --git a/.github/main.workflow b/.github/main.workflow
new file mode 100644
index 0000000..fa44e39
--- /dev/null
+++ b/.github/main.workflow
@@ -0,0 +1,9 @@
+workflow "Release" {
+  on = "release"
+  resolves = ["Publish to NPM"]
+}
+
+action "Publish to NPM" {
+  uses = "actions/npm@e7aaefed7c9f2e83d493ff810f17fa5ccd7ed437"
+  runs = "npm publish"
+}

From 07cde86ea72fb2a8c81fcdf1a64f202166c2ff10 Mon Sep 17 00:00:00 2001
From: cferdinandi <chris@gomakethings.com>
Date: Wed, 9 Jan 2019 16:44:02 -0500
Subject: [PATCH 27/51] Added autopublish to NPM action

---
 dist/smooth-scroll.js               | 4 ++--
 dist/smooth-scroll.min.js           | 2 +-
 dist/smooth-scroll.polyfills.js     | 4 ++--
 dist/smooth-scroll.polyfills.min.js | 2 +-
 package.json                        | 2 +-
 5 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/dist/smooth-scroll.js b/dist/smooth-scroll.js
index b0958df..b84c919 100755
--- a/dist/smooth-scroll.js
+++ b/dist/smooth-scroll.js
@@ -1,7 +1,7 @@
 /*!
- * smooth-scroll v15.1.3
+ * smooth-scroll v15.2.0
  * Animate scrolling to anchor links
- * (c) 2018 Chris Ferdinandi
+ * (c) 2019 Chris Ferdinandi
  * MIT License
  * http://github.com/cferdinandi/smooth-scroll
  */
diff --git a/dist/smooth-scroll.min.js b/dist/smooth-scroll.min.js
index 9902d37..904ab1c 100755
--- a/dist/smooth-scroll.min.js
+++ b/dist/smooth-scroll.min.js
@@ -1,2 +1,2 @@
-/*! smooth-scroll v15.1.3 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
+/*! smooth-scroll v15.2.0 | (c) 2019 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
 !(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(C){"use strict";var L={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,speedAsDuration:!1,durationMax:null,durationMin:null,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},H=function(){var n={};return Array.prototype.forEach.call(arguments,(function(e){for(var t in e){if(!e.hasOwnProperty(t))return;n[t]=e[t]}})),n},r=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,a=-1,r="",i=n.charCodeAt(0);++a<o;){if(0===(t=n.charCodeAt(a)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");1<=t&&t<=31||127==t||0===a&&48<=t&&t<=57||1===a&&48<=t&&t<=57&&45===i?r+="\\"+t.toString(16)+" ":r+=128<=t||45===t||95===t||48<=t&&t<=57||65<=t&&t<=90||97<=t&&t<=122?n.charAt(a):"\\"+n.charAt(a)}return"#"+r},q=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},x=function(e){return e?(t=e,parseInt(C.getComputedStyle(t).height,10)+e.offsetTop):0;var t},Q=function(e,t,n,o){if(t.emitEvents&&"function"==typeof C.CustomEvent){var a=new CustomEvent(e,{bubbles:!0,detail:{anchor:n,toggle:o}});document.dispatchEvent(a)}};return function(o,e){var I,a,M,A,w={};w.cancelScroll=function(e){cancelAnimationFrame(A),A=null,e||Q("scrollCancel",I)},w.animateScroll=function(i,s,e){w.cancelScroll();var c=H(I||L,e||{}),u="[object Number]"===Object.prototype.toString.call(i),t=u||!i.tagName?null:i;if(u||t){var l=C.pageYOffset;c.header&&!M&&(M=document.querySelector(c.header));var n,o,a,d,r,f,m,h,p=x(M),g=u?i:(function(e,t,n,o){var a=0;if(e.offsetParent)for(;a+=e.offsetTop,e=e.offsetParent;);return a=Math.max(a-t-n,0),o&&(a=Math.min(a,q()-C.innerHeight)),a})(t,p,parseInt("function"==typeof c.offset?c.offset(i,s):c.offset,10),c.clip),y=g-l,S=q(),v=0,E=(n=y,a=(o=c).speedAsDuration?o.speed:Math.abs(n/1e3*o.speed),o.durationMax&&a>o.durationMax?o.durationMax:o.durationMin&&a<o.durationMin?o.durationMin:parseInt(a,10)),b=function(e,t){var n,o,a,r=C.pageYOffset;if(e==t||r==t||(l<t&&C.innerHeight+r)>=S)return w.cancelScroll(!0),o=t,a=u,0===(n=i)&&document.body.focus(),a||(n.focus(),document.activeElement!==n&&(n.setAttribute("tabindex","-1"),n.focus(),n.style.outline="none"),C.scrollTo(0,o)),Q("scrollStop",c,i,s),!(A=d=null)},O=function(e){var t,n,o;d||(d=e),v+=e-d,f=l+y*(n=r=1<(r=0===E?0:v/E)?1:r,"easeInQuad"===(t=c).easing&&(o=n*n),"easeOutQuad"===t.easing&&(o=n*(2-n)),"easeInOutQuad"===t.easing&&(o=n<.5?2*n*n:(4-2*n)*n-1),"easeInCubic"===t.easing&&(o=n*n*n),"easeOutCubic"===t.easing&&(o=--n*n*n+1),"easeInOutCubic"===t.easing&&(o=n<.5?4*n*n*n:(n-1)*(2*n-2)*(2*n-2)+1),"easeInQuart"===t.easing&&(o=n*n*n*n),"easeOutQuart"===t.easing&&(o=1- --n*n*n*n),"easeInOutQuart"===t.easing&&(o=n<.5?8*n*n*n*n:1-8*--n*n*n*n),"easeInQuint"===t.easing&&(o=n*n*n*n*n),"easeOutQuint"===t.easing&&(o=1+--n*n*n*n*n),"easeInOutQuint"===t.easing&&(o=n<.5?16*n*n*n*n*n:1+16*--n*n*n*n*n),t.customEasing&&(o=t.customEasing(n)),o||n),C.scrollTo(0,Math.floor(f)),b(f,g)||(A=C.requestAnimationFrame(O),d=e)};0===C.pageYOffset&&C.scrollTo(0,0),m=i,h=c,u||history.pushState&&h.updateURL&&history.pushState({smoothScroll:JSON.stringify(h),anchor:m.id},document.title,m===document.documentElement?"#top":"#"+m.id),Q("scrollStart",c,i,s),w.cancelScroll(!0),C.requestAnimationFrame(O)}};var t=function(e){if(!("matchMedia"in C&&C.matchMedia("(prefers-reduced-motion)").matches)&&0===e.button&&!e.metaKey&&!e.ctrlKey&&"closest"in e.target&&(a=e.target.closest(o))&&"a"===a.tagName.toLowerCase()&&!e.target.closest(I.ignore)&&a.hostname===C.location.hostname&&a.pathname===C.location.pathname&&/#/.test(a.href)){var t=r(a.hash),n=I.topOnEmptyHash&&"#"===t?document.documentElement:document.querySelector(t);(n=n||"#top"!==t?n:document.documentElement)&&(e.preventDefault(),(function(e){if(history.replaceState&&e.updateURL&&!history.state){var t=C.location.hash;t=t||C.pageYOffset,history.replaceState({smoothScroll:JSON.stringify(e),anchor:t||C.pageYOffset},document.title,t||C.location.href)}})(I),w.animateScroll(n,a))}},n=function(e){if(null!==history.state&&history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(I)){var t=history.state.anchor;t&&0!==t&&!(t=document.querySelector(r(history.state.anchor)))||w.animateScroll(t,null,{updateURL:!1})}};return w.destroy=function(){I&&(document.removeEventListener("click",t,!1),C.removeEventListener("popstate",n,!1),w.cancelScroll(),A=M=a=I=null)},w.init=function(e){if(!("querySelector"in document&&"addEventListener"in C&&"requestAnimationFrame"in C&&"closest"in C.Element.prototype))throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";w.destroy(),I=H(L,e||{}),M=I.header?document.querySelector(I.header):null,document.addEventListener("click",t,!1),I.updateURL&&I.popstate&&C.addEventListener("popstate",n,!1)},w.init(e),w}}));
\ No newline at end of file
diff --git a/dist/smooth-scroll.polyfills.js b/dist/smooth-scroll.polyfills.js
index d4b99b0..9515c47 100755
--- a/dist/smooth-scroll.polyfills.js
+++ b/dist/smooth-scroll.polyfills.js
@@ -1,7 +1,7 @@
 /*!
- * smooth-scroll v15.1.3
+ * smooth-scroll v15.2.0
  * Animate scrolling to anchor links
- * (c) 2018 Chris Ferdinandi
+ * (c) 2019 Chris Ferdinandi
  * MIT License
  * http://github.com/cferdinandi/smooth-scroll
  */
diff --git a/dist/smooth-scroll.polyfills.min.js b/dist/smooth-scroll.polyfills.min.js
index a4dab88..dfed746 100755
--- a/dist/smooth-scroll.polyfills.min.js
+++ b/dist/smooth-scroll.polyfills.min.js
@@ -1,2 +1,2 @@
-/*! smooth-scroll v15.1.3 | (c) 2018 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
+/*! smooth-scroll v15.2.0 | (c) 2019 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
 window.Element&&!Element.prototype.closest&&(Element.prototype.closest=function(e){var t,n=(this.document||this.ownerDocument).querySelectorAll(e),o=this;do{for(t=n.length;0<=--t&&n.item(t)!==o;);}while(t<0&&(o=o.parentElement));return o}),(function(){if("function"==typeof window.CustomEvent)return;function e(e,t){t=t||{bubbles:!1,cancelable:!1,detail:void 0};var n=document.createEvent("CustomEvent");return n.initCustomEvent(e,t.bubbles,t.cancelable,t.detail),n}e.prototype=window.Event.prototype,window.CustomEvent=e})(),(function(){for(var i=0,e=["ms","moz","webkit","o"],t=0;t<e.length&&!window.requestAnimationFrame;++t)window.requestAnimationFrame=window[e[t]+"RequestAnimationFrame"],window.cancelAnimationFrame=window[e[t]+"CancelAnimationFrame"]||window[e[t]+"CancelRequestAnimationFrame"];window.requestAnimationFrame||(window.requestAnimationFrame=function(e,t){var n=(new Date).getTime(),o=Math.max(0,16-(n-i)),a=window.setTimeout((function(){e(n+o)}),o);return i=n+o,a}),window.cancelAnimationFrame||(window.cancelAnimationFrame=function(e){clearTimeout(e)})})(),(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(M){"use strict";var I={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,speedAsDuration:!1,durationMax:null,durationMin:null,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},F=function(){var n={};return Array.prototype.forEach.call(arguments,(function(e){for(var t in e){if(!e.hasOwnProperty(t))return;n[t]=e[t]}})),n},i=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,a=-1,i="",r=n.charCodeAt(0);++a<o;){if(0===(t=n.charCodeAt(a)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");1<=t&&t<=31||127==t||0===a&&48<=t&&t<=57||1===a&&48<=t&&t<=57&&45===r?i+="\\"+t.toString(16)+" ":i+=128<=t||45===t||95===t||48<=t&&t<=57||65<=t&&t<=90||97<=t&&t<=122?n.charAt(a):"\\"+n.charAt(a)}return"#"+i},L=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},x=function(e){return e?(t=e,parseInt(M.getComputedStyle(t).height,10)+e.offsetTop):0;var t},H=function(e,t,n,o){if(t.emitEvents&&"function"==typeof M.CustomEvent){var a=new CustomEvent(e,{bubbles:!0,detail:{anchor:n,toggle:o}});document.dispatchEvent(a)}};return function(o,e){var A,a,O,C,q={};q.cancelScroll=function(e){cancelAnimationFrame(C),C=null,e||H("scrollCancel",A)},q.animateScroll=function(r,c,e){q.cancelScroll();var s=F(A||I,e||{}),u="[object Number]"===Object.prototype.toString.call(r),t=u||!r.tagName?null:r;if(u||t){var l=M.pageYOffset;s.header&&!O&&(O=document.querySelector(s.header));var n,o,a,m,i,d,f,h,p=x(O),g=u?r:(function(e,t,n,o){var a=0;if(e.offsetParent)for(;a+=e.offsetTop,e=e.offsetParent;);return a=Math.max(a-t-n,0),o&&(a=Math.min(a,L()-M.innerHeight)),a})(t,p,parseInt("function"==typeof s.offset?s.offset(r,c):s.offset,10),s.clip),y=g-l,w=L(),v=0,S=(n=y,a=(o=s).speedAsDuration?o.speed:Math.abs(n/1e3*o.speed),o.durationMax&&a>o.durationMax?o.durationMax:o.durationMin&&a<o.durationMin?o.durationMin:parseInt(a,10)),E=function(e,t){var n,o,a,i=M.pageYOffset;if(e==t||i==t||(l<t&&M.innerHeight+i)>=w)return q.cancelScroll(!0),o=t,a=u,0===(n=r)&&document.body.focus(),a||(n.focus(),document.activeElement!==n&&(n.setAttribute("tabindex","-1"),n.focus(),n.style.outline="none"),M.scrollTo(0,o)),H("scrollStop",s,r,c),!(C=m=null)},b=function(e){var t,n,o;m||(m=e),v+=e-m,d=l+y*(n=i=1<(i=0===S?0:v/S)?1:i,"easeInQuad"===(t=s).easing&&(o=n*n),"easeOutQuad"===t.easing&&(o=n*(2-n)),"easeInOutQuad"===t.easing&&(o=n<.5?2*n*n:(4-2*n)*n-1),"easeInCubic"===t.easing&&(o=n*n*n),"easeOutCubic"===t.easing&&(o=--n*n*n+1),"easeInOutCubic"===t.easing&&(o=n<.5?4*n*n*n:(n-1)*(2*n-2)*(2*n-2)+1),"easeInQuart"===t.easing&&(o=n*n*n*n),"easeOutQuart"===t.easing&&(o=1- --n*n*n*n),"easeInOutQuart"===t.easing&&(o=n<.5?8*n*n*n*n:1-8*--n*n*n*n),"easeInQuint"===t.easing&&(o=n*n*n*n*n),"easeOutQuint"===t.easing&&(o=1+--n*n*n*n*n),"easeInOutQuint"===t.easing&&(o=n<.5?16*n*n*n*n*n:1+16*--n*n*n*n*n),t.customEasing&&(o=t.customEasing(n)),o||n),M.scrollTo(0,Math.floor(d)),E(d,g)||(C=M.requestAnimationFrame(b),m=e)};0===M.pageYOffset&&M.scrollTo(0,0),f=r,h=s,u||history.pushState&&h.updateURL&&history.pushState({smoothScroll:JSON.stringify(h),anchor:f.id},document.title,f===document.documentElement?"#top":"#"+f.id),H("scrollStart",s,r,c),q.cancelScroll(!0),M.requestAnimationFrame(b)}};var t=function(e){if(!("matchMedia"in M&&M.matchMedia("(prefers-reduced-motion)").matches)&&0===e.button&&!e.metaKey&&!e.ctrlKey&&"closest"in e.target&&(a=e.target.closest(o))&&"a"===a.tagName.toLowerCase()&&!e.target.closest(A.ignore)&&a.hostname===M.location.hostname&&a.pathname===M.location.pathname&&/#/.test(a.href)){var t=i(a.hash),n=A.topOnEmptyHash&&"#"===t?document.documentElement:document.querySelector(t);(n=n||"#top"!==t?n:document.documentElement)&&(e.preventDefault(),(function(e){if(history.replaceState&&e.updateURL&&!history.state){var t=M.location.hash;t=t||M.pageYOffset,history.replaceState({smoothScroll:JSON.stringify(e),anchor:t||M.pageYOffset},document.title,t||M.location.href)}})(A),q.animateScroll(n,a))}},n=function(e){if(null!==history.state&&history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(A)){var t=history.state.anchor;t&&0!==t&&!(t=document.querySelector(i(history.state.anchor)))||q.animateScroll(t,null,{updateURL:!1})}};return q.destroy=function(){A&&(document.removeEventListener("click",t,!1),M.removeEventListener("popstate",n,!1),q.cancelScroll(),C=O=a=A=null)},q.init=function(e){if(!("querySelector"in document&&"addEventListener"in M&&"requestAnimationFrame"in M&&"closest"in M.Element.prototype))throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";q.destroy(),A=F(I,e||{}),O=A.header?document.querySelector(A.header):null,document.addEventListener("click",t,!1),A.updateURL&&A.popstate&&M.addEventListener("popstate",n,!1)},q.init(e),q}}));
\ No newline at end of file
diff --git a/package.json b/package.json
index ee14e4b..fdb24e0 100755
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
 	"name": "smooth-scroll",
-	"version": "15.1.3",
+	"version": "15.2.0",
 	"description": "Animate scrolling to anchor links",
 	"main": "./dist/smooth-scroll.polyfills.min.js",
 	"author": {

From 1e4f8dc7c5746fa633b96fa9676f0003c6873195 Mon Sep 17 00:00:00 2001
From: dingyi1993 <781745492@qq.com>
Date: Wed, 23 Jan 2019 22:25:42 +0800
Subject: [PATCH 28/51] Fix bug: when pageYOffset is not zero,the first time
 animate scrolling will got an error.

---
 src/js/smooth-scroll/smooth-scroll.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/js/smooth-scroll/smooth-scroll.js b/src/js/smooth-scroll/smooth-scroll.js
index 7b75647..29f05e9 100755
--- a/src/js/smooth-scroll/smooth-scroll.js
+++ b/src/js/smooth-scroll/smooth-scroll.js
@@ -273,7 +273,7 @@
 
 		// Get the hash to use
 		var hash = window.location.hash;
-		hash = hash ? hash : window.pageYOffset;
+		hash = hash ? hash : '';
 
 		// Set a default history
 		history.replaceState(
@@ -542,7 +542,7 @@
 
 			// Get the anchor
 			var anchor = history.state.anchor;
-			if (anchor && anchor !== 0) {
+			if (typeof anchor === 'string' && anchor) {
 				anchor = document.querySelector(escapeCharacters(history.state.anchor));
 				if (!anchor) return;
 			}

From 82de06c95c51b3b7b484d88b92da712812738f60 Mon Sep 17 00:00:00 2001
From: cferdinandi <chris@gomakethings.com>
Date: Wed, 23 Jan 2019 14:39:13 -0500
Subject: [PATCH 29/51] Fixed
 https://github.com/cferdinandi/smooth-scroll/issues/457

---
 dist/smooth-scroll.js               | 6 +++---
 dist/smooth-scroll.min.js           | 4 ++--
 dist/smooth-scroll.polyfills.js     | 6 +++---
 dist/smooth-scroll.polyfills.min.js | 4 ++--
 package.json                        | 2 +-
 5 files changed, 11 insertions(+), 11 deletions(-)

diff --git a/dist/smooth-scroll.js b/dist/smooth-scroll.js
index b84c919..e0cf796 100755
--- a/dist/smooth-scroll.js
+++ b/dist/smooth-scroll.js
@@ -1,5 +1,5 @@
 /*!
- * smooth-scroll v15.2.0
+ * smooth-scroll v15.2.1
  * Animate scrolling to anchor links
  * (c) 2019 Chris Ferdinandi
  * MIT License
@@ -281,7 +281,7 @@
 
 		// Get the hash to use
 		var hash = window.location.hash;
-		hash = hash ? hash : window.pageYOffset;
+		hash = hash ? hash : '';
 
 		// Set a default history
 		history.replaceState(
@@ -550,7 +550,7 @@
 
 			// Get the anchor
 			var anchor = history.state.anchor;
-			if (anchor && anchor !== 0) {
+			if (typeof anchor === 'string' && anchor) {
 				anchor = document.querySelector(escapeCharacters(history.state.anchor));
 				if (!anchor) return;
 			}
diff --git a/dist/smooth-scroll.min.js b/dist/smooth-scroll.min.js
index 904ab1c..6dec112 100755
--- a/dist/smooth-scroll.min.js
+++ b/dist/smooth-scroll.min.js
@@ -1,2 +1,2 @@
-/*! smooth-scroll v15.2.0 | (c) 2019 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
-!(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(C){"use strict";var L={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,speedAsDuration:!1,durationMax:null,durationMin:null,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},H=function(){var n={};return Array.prototype.forEach.call(arguments,(function(e){for(var t in e){if(!e.hasOwnProperty(t))return;n[t]=e[t]}})),n},r=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,a=-1,r="",i=n.charCodeAt(0);++a<o;){if(0===(t=n.charCodeAt(a)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");1<=t&&t<=31||127==t||0===a&&48<=t&&t<=57||1===a&&48<=t&&t<=57&&45===i?r+="\\"+t.toString(16)+" ":r+=128<=t||45===t||95===t||48<=t&&t<=57||65<=t&&t<=90||97<=t&&t<=122?n.charAt(a):"\\"+n.charAt(a)}return"#"+r},q=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},x=function(e){return e?(t=e,parseInt(C.getComputedStyle(t).height,10)+e.offsetTop):0;var t},Q=function(e,t,n,o){if(t.emitEvents&&"function"==typeof C.CustomEvent){var a=new CustomEvent(e,{bubbles:!0,detail:{anchor:n,toggle:o}});document.dispatchEvent(a)}};return function(o,e){var I,a,M,A,w={};w.cancelScroll=function(e){cancelAnimationFrame(A),A=null,e||Q("scrollCancel",I)},w.animateScroll=function(i,s,e){w.cancelScroll();var c=H(I||L,e||{}),u="[object Number]"===Object.prototype.toString.call(i),t=u||!i.tagName?null:i;if(u||t){var l=C.pageYOffset;c.header&&!M&&(M=document.querySelector(c.header));var n,o,a,d,r,f,m,h,p=x(M),g=u?i:(function(e,t,n,o){var a=0;if(e.offsetParent)for(;a+=e.offsetTop,e=e.offsetParent;);return a=Math.max(a-t-n,0),o&&(a=Math.min(a,q()-C.innerHeight)),a})(t,p,parseInt("function"==typeof c.offset?c.offset(i,s):c.offset,10),c.clip),y=g-l,S=q(),v=0,E=(n=y,a=(o=c).speedAsDuration?o.speed:Math.abs(n/1e3*o.speed),o.durationMax&&a>o.durationMax?o.durationMax:o.durationMin&&a<o.durationMin?o.durationMin:parseInt(a,10)),b=function(e,t){var n,o,a,r=C.pageYOffset;if(e==t||r==t||(l<t&&C.innerHeight+r)>=S)return w.cancelScroll(!0),o=t,a=u,0===(n=i)&&document.body.focus(),a||(n.focus(),document.activeElement!==n&&(n.setAttribute("tabindex","-1"),n.focus(),n.style.outline="none"),C.scrollTo(0,o)),Q("scrollStop",c,i,s),!(A=d=null)},O=function(e){var t,n,o;d||(d=e),v+=e-d,f=l+y*(n=r=1<(r=0===E?0:v/E)?1:r,"easeInQuad"===(t=c).easing&&(o=n*n),"easeOutQuad"===t.easing&&(o=n*(2-n)),"easeInOutQuad"===t.easing&&(o=n<.5?2*n*n:(4-2*n)*n-1),"easeInCubic"===t.easing&&(o=n*n*n),"easeOutCubic"===t.easing&&(o=--n*n*n+1),"easeInOutCubic"===t.easing&&(o=n<.5?4*n*n*n:(n-1)*(2*n-2)*(2*n-2)+1),"easeInQuart"===t.easing&&(o=n*n*n*n),"easeOutQuart"===t.easing&&(o=1- --n*n*n*n),"easeInOutQuart"===t.easing&&(o=n<.5?8*n*n*n*n:1-8*--n*n*n*n),"easeInQuint"===t.easing&&(o=n*n*n*n*n),"easeOutQuint"===t.easing&&(o=1+--n*n*n*n*n),"easeInOutQuint"===t.easing&&(o=n<.5?16*n*n*n*n*n:1+16*--n*n*n*n*n),t.customEasing&&(o=t.customEasing(n)),o||n),C.scrollTo(0,Math.floor(f)),b(f,g)||(A=C.requestAnimationFrame(O),d=e)};0===C.pageYOffset&&C.scrollTo(0,0),m=i,h=c,u||history.pushState&&h.updateURL&&history.pushState({smoothScroll:JSON.stringify(h),anchor:m.id},document.title,m===document.documentElement?"#top":"#"+m.id),Q("scrollStart",c,i,s),w.cancelScroll(!0),C.requestAnimationFrame(O)}};var t=function(e){if(!("matchMedia"in C&&C.matchMedia("(prefers-reduced-motion)").matches)&&0===e.button&&!e.metaKey&&!e.ctrlKey&&"closest"in e.target&&(a=e.target.closest(o))&&"a"===a.tagName.toLowerCase()&&!e.target.closest(I.ignore)&&a.hostname===C.location.hostname&&a.pathname===C.location.pathname&&/#/.test(a.href)){var t=r(a.hash),n=I.topOnEmptyHash&&"#"===t?document.documentElement:document.querySelector(t);(n=n||"#top"!==t?n:document.documentElement)&&(e.preventDefault(),(function(e){if(history.replaceState&&e.updateURL&&!history.state){var t=C.location.hash;t=t||C.pageYOffset,history.replaceState({smoothScroll:JSON.stringify(e),anchor:t||C.pageYOffset},document.title,t||C.location.href)}})(I),w.animateScroll(n,a))}},n=function(e){if(null!==history.state&&history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(I)){var t=history.state.anchor;t&&0!==t&&!(t=document.querySelector(r(history.state.anchor)))||w.animateScroll(t,null,{updateURL:!1})}};return w.destroy=function(){I&&(document.removeEventListener("click",t,!1),C.removeEventListener("popstate",n,!1),w.cancelScroll(),A=M=a=I=null)},w.init=function(e){if(!("querySelector"in document&&"addEventListener"in C&&"requestAnimationFrame"in C&&"closest"in C.Element.prototype))throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";w.destroy(),I=H(L,e||{}),M=I.header?document.querySelector(I.header):null,document.addEventListener("click",t,!1),I.updateURL&&I.popstate&&C.addEventListener("popstate",n,!1)},w.init(e),w}}));
\ No newline at end of file
+/*! smooth-scroll v15.2.1 | (c) 2019 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
+!(function(t,e){"function"==typeof define&&define.amd?define([],(function(){return e(t)})):"object"==typeof exports?module.exports=e(t):t.SmoothScroll=e(t)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(C){"use strict";var L={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,speedAsDuration:!1,durationMax:null,durationMin:null,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},H=function(){var n={};return Array.prototype.forEach.call(arguments,(function(t){for(var e in t){if(!t.hasOwnProperty(e))return;n[e]=t[e]}})),n},r=function(t){"#"===t.charAt(0)&&(t=t.substr(1));for(var e,n=String(t),o=n.length,a=-1,r="",i=n.charCodeAt(0);++a<o;){if(0===(e=n.charCodeAt(a)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");1<=e&&e<=31||127==e||0===a&&48<=e&&e<=57||1===a&&48<=e&&e<=57&&45===i?r+="\\"+e.toString(16)+" ":r+=128<=e||45===e||95===e||48<=e&&e<=57||65<=e&&e<=90||97<=e&&e<=122?n.charAt(a):"\\"+n.charAt(a)}return"#"+r},q=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},x=function(t){return t?(e=t,parseInt(C.getComputedStyle(e).height,10)+t.offsetTop):0;var e},Q=function(t,e,n,o){if(e.emitEvents&&"function"==typeof C.CustomEvent){var a=new CustomEvent(t,{bubbles:!0,detail:{anchor:n,toggle:o}});document.dispatchEvent(a)}};return function(o,t){var I,a,M,A,w={};w.cancelScroll=function(t){cancelAnimationFrame(A),A=null,t||Q("scrollCancel",I)},w.animateScroll=function(i,s,t){w.cancelScroll();var c=H(I||L,t||{}),u="[object Number]"===Object.prototype.toString.call(i),e=u||!i.tagName?null:i;if(u||e){var l=C.pageYOffset;c.header&&!M&&(M=document.querySelector(c.header));var n,o,a,d,r,f,m,h,p=x(M),g=u?i:(function(t,e,n,o){var a=0;if(t.offsetParent)for(;a+=t.offsetTop,t=t.offsetParent;);return a=Math.max(a-e-n,0),o&&(a=Math.min(a,q()-C.innerHeight)),a})(e,p,parseInt("function"==typeof c.offset?c.offset(i,s):c.offset,10),c.clip),y=g-l,S=q(),v=0,E=(n=y,a=(o=c).speedAsDuration?o.speed:Math.abs(n/1e3*o.speed),o.durationMax&&a>o.durationMax?o.durationMax:o.durationMin&&a<o.durationMin?o.durationMin:parseInt(a,10)),b=function(t,e){var n,o,a,r=C.pageYOffset;if(t==e||r==e||(l<e&&C.innerHeight+r)>=S)return w.cancelScroll(!0),o=e,a=u,0===(n=i)&&document.body.focus(),a||(n.focus(),document.activeElement!==n&&(n.setAttribute("tabindex","-1"),n.focus(),n.style.outline="none"),C.scrollTo(0,o)),Q("scrollStop",c,i,s),!(A=d=null)},O=function(t){var e,n,o;d||(d=t),v+=t-d,f=l+y*(n=r=1<(r=0===E?0:v/E)?1:r,"easeInQuad"===(e=c).easing&&(o=n*n),"easeOutQuad"===e.easing&&(o=n*(2-n)),"easeInOutQuad"===e.easing&&(o=n<.5?2*n*n:(4-2*n)*n-1),"easeInCubic"===e.easing&&(o=n*n*n),"easeOutCubic"===e.easing&&(o=--n*n*n+1),"easeInOutCubic"===e.easing&&(o=n<.5?4*n*n*n:(n-1)*(2*n-2)*(2*n-2)+1),"easeInQuart"===e.easing&&(o=n*n*n*n),"easeOutQuart"===e.easing&&(o=1- --n*n*n*n),"easeInOutQuart"===e.easing&&(o=n<.5?8*n*n*n*n:1-8*--n*n*n*n),"easeInQuint"===e.easing&&(o=n*n*n*n*n),"easeOutQuint"===e.easing&&(o=1+--n*n*n*n*n),"easeInOutQuint"===e.easing&&(o=n<.5?16*n*n*n*n*n:1+16*--n*n*n*n*n),e.customEasing&&(o=e.customEasing(n)),o||n),C.scrollTo(0,Math.floor(f)),b(f,g)||(A=C.requestAnimationFrame(O),d=t)};0===C.pageYOffset&&C.scrollTo(0,0),m=i,h=c,u||history.pushState&&h.updateURL&&history.pushState({smoothScroll:JSON.stringify(h),anchor:m.id},document.title,m===document.documentElement?"#top":"#"+m.id),Q("scrollStart",c,i,s),w.cancelScroll(!0),C.requestAnimationFrame(O)}};var e=function(t){if(!("matchMedia"in C&&C.matchMedia("(prefers-reduced-motion)").matches)&&0===t.button&&!t.metaKey&&!t.ctrlKey&&"closest"in t.target&&(a=t.target.closest(o))&&"a"===a.tagName.toLowerCase()&&!t.target.closest(I.ignore)&&a.hostname===C.location.hostname&&a.pathname===C.location.pathname&&/#/.test(a.href)){var e=r(a.hash),n=I.topOnEmptyHash&&"#"===e?document.documentElement:document.querySelector(e);(n=n||"#top"!==e?n:document.documentElement)&&(t.preventDefault(),(function(t){if(history.replaceState&&t.updateURL&&!history.state){var e=C.location.hash;e=e||"",history.replaceState({smoothScroll:JSON.stringify(t),anchor:e||C.pageYOffset},document.title,e||C.location.href)}})(I),w.animateScroll(n,a))}},n=function(t){if(null!==history.state&&history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(I)){var e=history.state.anchor;"string"==typeof e&&e&&!(e=document.querySelector(r(history.state.anchor)))||w.animateScroll(e,null,{updateURL:!1})}};return w.destroy=function(){I&&(document.removeEventListener("click",e,!1),C.removeEventListener("popstate",n,!1),w.cancelScroll(),A=M=a=I=null)},w.init=function(t){if(!("querySelector"in document&&"addEventListener"in C&&"requestAnimationFrame"in C&&"closest"in C.Element.prototype))throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";w.destroy(),I=H(L,t||{}),M=I.header?document.querySelector(I.header):null,document.addEventListener("click",e,!1),I.updateURL&&I.popstate&&C.addEventListener("popstate",n,!1)},w.init(t),w}}));
\ No newline at end of file
diff --git a/dist/smooth-scroll.polyfills.js b/dist/smooth-scroll.polyfills.js
index 9515c47..4b17c9b 100755
--- a/dist/smooth-scroll.polyfills.js
+++ b/dist/smooth-scroll.polyfills.js
@@ -1,5 +1,5 @@
 /*!
- * smooth-scroll v15.2.0
+ * smooth-scroll v15.2.1
  * Animate scrolling to anchor links
  * (c) 2019 Chris Ferdinandi
  * MIT License
@@ -351,7 +351,7 @@ if (window.Element && !Element.prototype.closest) {
 
 		// Get the hash to use
 		var hash = window.location.hash;
-		hash = hash ? hash : window.pageYOffset;
+		hash = hash ? hash : '';
 
 		// Set a default history
 		history.replaceState(
@@ -620,7 +620,7 @@ if (window.Element && !Element.prototype.closest) {
 
 			// Get the anchor
 			var anchor = history.state.anchor;
-			if (anchor && anchor !== 0) {
+			if (typeof anchor === 'string' && anchor) {
 				anchor = document.querySelector(escapeCharacters(history.state.anchor));
 				if (!anchor) return;
 			}
diff --git a/dist/smooth-scroll.polyfills.min.js b/dist/smooth-scroll.polyfills.min.js
index dfed746..faddc00 100755
--- a/dist/smooth-scroll.polyfills.min.js
+++ b/dist/smooth-scroll.polyfills.min.js
@@ -1,2 +1,2 @@
-/*! smooth-scroll v15.2.0 | (c) 2019 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
-window.Element&&!Element.prototype.closest&&(Element.prototype.closest=function(e){var t,n=(this.document||this.ownerDocument).querySelectorAll(e),o=this;do{for(t=n.length;0<=--t&&n.item(t)!==o;);}while(t<0&&(o=o.parentElement));return o}),(function(){if("function"==typeof window.CustomEvent)return;function e(e,t){t=t||{bubbles:!1,cancelable:!1,detail:void 0};var n=document.createEvent("CustomEvent");return n.initCustomEvent(e,t.bubbles,t.cancelable,t.detail),n}e.prototype=window.Event.prototype,window.CustomEvent=e})(),(function(){for(var i=0,e=["ms","moz","webkit","o"],t=0;t<e.length&&!window.requestAnimationFrame;++t)window.requestAnimationFrame=window[e[t]+"RequestAnimationFrame"],window.cancelAnimationFrame=window[e[t]+"CancelAnimationFrame"]||window[e[t]+"CancelRequestAnimationFrame"];window.requestAnimationFrame||(window.requestAnimationFrame=function(e,t){var n=(new Date).getTime(),o=Math.max(0,16-(n-i)),a=window.setTimeout((function(){e(n+o)}),o);return i=n+o,a}),window.cancelAnimationFrame||(window.cancelAnimationFrame=function(e){clearTimeout(e)})})(),(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(M){"use strict";var I={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,speedAsDuration:!1,durationMax:null,durationMin:null,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},F=function(){var n={};return Array.prototype.forEach.call(arguments,(function(e){for(var t in e){if(!e.hasOwnProperty(t))return;n[t]=e[t]}})),n},i=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,a=-1,i="",r=n.charCodeAt(0);++a<o;){if(0===(t=n.charCodeAt(a)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");1<=t&&t<=31||127==t||0===a&&48<=t&&t<=57||1===a&&48<=t&&t<=57&&45===r?i+="\\"+t.toString(16)+" ":i+=128<=t||45===t||95===t||48<=t&&t<=57||65<=t&&t<=90||97<=t&&t<=122?n.charAt(a):"\\"+n.charAt(a)}return"#"+i},L=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},x=function(e){return e?(t=e,parseInt(M.getComputedStyle(t).height,10)+e.offsetTop):0;var t},H=function(e,t,n,o){if(t.emitEvents&&"function"==typeof M.CustomEvent){var a=new CustomEvent(e,{bubbles:!0,detail:{anchor:n,toggle:o}});document.dispatchEvent(a)}};return function(o,e){var A,a,O,C,q={};q.cancelScroll=function(e){cancelAnimationFrame(C),C=null,e||H("scrollCancel",A)},q.animateScroll=function(r,c,e){q.cancelScroll();var s=F(A||I,e||{}),u="[object Number]"===Object.prototype.toString.call(r),t=u||!r.tagName?null:r;if(u||t){var l=M.pageYOffset;s.header&&!O&&(O=document.querySelector(s.header));var n,o,a,m,i,d,f,h,p=x(O),g=u?r:(function(e,t,n,o){var a=0;if(e.offsetParent)for(;a+=e.offsetTop,e=e.offsetParent;);return a=Math.max(a-t-n,0),o&&(a=Math.min(a,L()-M.innerHeight)),a})(t,p,parseInt("function"==typeof s.offset?s.offset(r,c):s.offset,10),s.clip),y=g-l,w=L(),v=0,S=(n=y,a=(o=s).speedAsDuration?o.speed:Math.abs(n/1e3*o.speed),o.durationMax&&a>o.durationMax?o.durationMax:o.durationMin&&a<o.durationMin?o.durationMin:parseInt(a,10)),E=function(e,t){var n,o,a,i=M.pageYOffset;if(e==t||i==t||(l<t&&M.innerHeight+i)>=w)return q.cancelScroll(!0),o=t,a=u,0===(n=r)&&document.body.focus(),a||(n.focus(),document.activeElement!==n&&(n.setAttribute("tabindex","-1"),n.focus(),n.style.outline="none"),M.scrollTo(0,o)),H("scrollStop",s,r,c),!(C=m=null)},b=function(e){var t,n,o;m||(m=e),v+=e-m,d=l+y*(n=i=1<(i=0===S?0:v/S)?1:i,"easeInQuad"===(t=s).easing&&(o=n*n),"easeOutQuad"===t.easing&&(o=n*(2-n)),"easeInOutQuad"===t.easing&&(o=n<.5?2*n*n:(4-2*n)*n-1),"easeInCubic"===t.easing&&(o=n*n*n),"easeOutCubic"===t.easing&&(o=--n*n*n+1),"easeInOutCubic"===t.easing&&(o=n<.5?4*n*n*n:(n-1)*(2*n-2)*(2*n-2)+1),"easeInQuart"===t.easing&&(o=n*n*n*n),"easeOutQuart"===t.easing&&(o=1- --n*n*n*n),"easeInOutQuart"===t.easing&&(o=n<.5?8*n*n*n*n:1-8*--n*n*n*n),"easeInQuint"===t.easing&&(o=n*n*n*n*n),"easeOutQuint"===t.easing&&(o=1+--n*n*n*n*n),"easeInOutQuint"===t.easing&&(o=n<.5?16*n*n*n*n*n:1+16*--n*n*n*n*n),t.customEasing&&(o=t.customEasing(n)),o||n),M.scrollTo(0,Math.floor(d)),E(d,g)||(C=M.requestAnimationFrame(b),m=e)};0===M.pageYOffset&&M.scrollTo(0,0),f=r,h=s,u||history.pushState&&h.updateURL&&history.pushState({smoothScroll:JSON.stringify(h),anchor:f.id},document.title,f===document.documentElement?"#top":"#"+f.id),H("scrollStart",s,r,c),q.cancelScroll(!0),M.requestAnimationFrame(b)}};var t=function(e){if(!("matchMedia"in M&&M.matchMedia("(prefers-reduced-motion)").matches)&&0===e.button&&!e.metaKey&&!e.ctrlKey&&"closest"in e.target&&(a=e.target.closest(o))&&"a"===a.tagName.toLowerCase()&&!e.target.closest(A.ignore)&&a.hostname===M.location.hostname&&a.pathname===M.location.pathname&&/#/.test(a.href)){var t=i(a.hash),n=A.topOnEmptyHash&&"#"===t?document.documentElement:document.querySelector(t);(n=n||"#top"!==t?n:document.documentElement)&&(e.preventDefault(),(function(e){if(history.replaceState&&e.updateURL&&!history.state){var t=M.location.hash;t=t||M.pageYOffset,history.replaceState({smoothScroll:JSON.stringify(e),anchor:t||M.pageYOffset},document.title,t||M.location.href)}})(A),q.animateScroll(n,a))}},n=function(e){if(null!==history.state&&history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(A)){var t=history.state.anchor;t&&0!==t&&!(t=document.querySelector(i(history.state.anchor)))||q.animateScroll(t,null,{updateURL:!1})}};return q.destroy=function(){A&&(document.removeEventListener("click",t,!1),M.removeEventListener("popstate",n,!1),q.cancelScroll(),C=O=a=A=null)},q.init=function(e){if(!("querySelector"in document&&"addEventListener"in M&&"requestAnimationFrame"in M&&"closest"in M.Element.prototype))throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";q.destroy(),A=F(I,e||{}),O=A.header?document.querySelector(A.header):null,document.addEventListener("click",t,!1),A.updateURL&&A.popstate&&M.addEventListener("popstate",n,!1)},q.init(e),q}}));
\ No newline at end of file
+/*! smooth-scroll v15.2.1 | (c) 2019 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
+window.Element&&!Element.prototype.closest&&(Element.prototype.closest=function(e){var t,n=(this.document||this.ownerDocument).querySelectorAll(e),o=this;do{for(t=n.length;0<=--t&&n.item(t)!==o;);}while(t<0&&(o=o.parentElement));return o}),(function(){if("function"==typeof window.CustomEvent)return;function e(e,t){t=t||{bubbles:!1,cancelable:!1,detail:void 0};var n=document.createEvent("CustomEvent");return n.initCustomEvent(e,t.bubbles,t.cancelable,t.detail),n}e.prototype=window.Event.prototype,window.CustomEvent=e})(),(function(){for(var i=0,e=["ms","moz","webkit","o"],t=0;t<e.length&&!window.requestAnimationFrame;++t)window.requestAnimationFrame=window[e[t]+"RequestAnimationFrame"],window.cancelAnimationFrame=window[e[t]+"CancelAnimationFrame"]||window[e[t]+"CancelRequestAnimationFrame"];window.requestAnimationFrame||(window.requestAnimationFrame=function(e,t){var n=(new Date).getTime(),o=Math.max(0,16-(n-i)),a=window.setTimeout((function(){e(n+o)}),o);return i=n+o,a}),window.cancelAnimationFrame||(window.cancelAnimationFrame=function(e){clearTimeout(e)})})(),(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(M){"use strict";var I={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,speedAsDuration:!1,durationMax:null,durationMin:null,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},F=function(){var n={};return Array.prototype.forEach.call(arguments,(function(e){for(var t in e){if(!e.hasOwnProperty(t))return;n[t]=e[t]}})),n},i=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,a=-1,i="",r=n.charCodeAt(0);++a<o;){if(0===(t=n.charCodeAt(a)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");1<=t&&t<=31||127==t||0===a&&48<=t&&t<=57||1===a&&48<=t&&t<=57&&45===r?i+="\\"+t.toString(16)+" ":i+=128<=t||45===t||95===t||48<=t&&t<=57||65<=t&&t<=90||97<=t&&t<=122?n.charAt(a):"\\"+n.charAt(a)}return"#"+i},L=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},x=function(e){return e?(t=e,parseInt(M.getComputedStyle(t).height,10)+e.offsetTop):0;var t},H=function(e,t,n,o){if(t.emitEvents&&"function"==typeof M.CustomEvent){var a=new CustomEvent(e,{bubbles:!0,detail:{anchor:n,toggle:o}});document.dispatchEvent(a)}};return function(o,e){var A,a,O,C,q={};q.cancelScroll=function(e){cancelAnimationFrame(C),C=null,e||H("scrollCancel",A)},q.animateScroll=function(r,c,e){q.cancelScroll();var s=F(A||I,e||{}),u="[object Number]"===Object.prototype.toString.call(r),t=u||!r.tagName?null:r;if(u||t){var l=M.pageYOffset;s.header&&!O&&(O=document.querySelector(s.header));var n,o,a,m,i,d,f,h,p=x(O),g=u?r:(function(e,t,n,o){var a=0;if(e.offsetParent)for(;a+=e.offsetTop,e=e.offsetParent;);return a=Math.max(a-t-n,0),o&&(a=Math.min(a,L()-M.innerHeight)),a})(t,p,parseInt("function"==typeof s.offset?s.offset(r,c):s.offset,10),s.clip),y=g-l,w=L(),v=0,S=(n=y,a=(o=s).speedAsDuration?o.speed:Math.abs(n/1e3*o.speed),o.durationMax&&a>o.durationMax?o.durationMax:o.durationMin&&a<o.durationMin?o.durationMin:parseInt(a,10)),E=function(e,t){var n,o,a,i=M.pageYOffset;if(e==t||i==t||(l<t&&M.innerHeight+i)>=w)return q.cancelScroll(!0),o=t,a=u,0===(n=r)&&document.body.focus(),a||(n.focus(),document.activeElement!==n&&(n.setAttribute("tabindex","-1"),n.focus(),n.style.outline="none"),M.scrollTo(0,o)),H("scrollStop",s,r,c),!(C=m=null)},b=function(e){var t,n,o;m||(m=e),v+=e-m,d=l+y*(n=i=1<(i=0===S?0:v/S)?1:i,"easeInQuad"===(t=s).easing&&(o=n*n),"easeOutQuad"===t.easing&&(o=n*(2-n)),"easeInOutQuad"===t.easing&&(o=n<.5?2*n*n:(4-2*n)*n-1),"easeInCubic"===t.easing&&(o=n*n*n),"easeOutCubic"===t.easing&&(o=--n*n*n+1),"easeInOutCubic"===t.easing&&(o=n<.5?4*n*n*n:(n-1)*(2*n-2)*(2*n-2)+1),"easeInQuart"===t.easing&&(o=n*n*n*n),"easeOutQuart"===t.easing&&(o=1- --n*n*n*n),"easeInOutQuart"===t.easing&&(o=n<.5?8*n*n*n*n:1-8*--n*n*n*n),"easeInQuint"===t.easing&&(o=n*n*n*n*n),"easeOutQuint"===t.easing&&(o=1+--n*n*n*n*n),"easeInOutQuint"===t.easing&&(o=n<.5?16*n*n*n*n*n:1+16*--n*n*n*n*n),t.customEasing&&(o=t.customEasing(n)),o||n),M.scrollTo(0,Math.floor(d)),E(d,g)||(C=M.requestAnimationFrame(b),m=e)};0===M.pageYOffset&&M.scrollTo(0,0),f=r,h=s,u||history.pushState&&h.updateURL&&history.pushState({smoothScroll:JSON.stringify(h),anchor:f.id},document.title,f===document.documentElement?"#top":"#"+f.id),H("scrollStart",s,r,c),q.cancelScroll(!0),M.requestAnimationFrame(b)}};var t=function(e){if(!("matchMedia"in M&&M.matchMedia("(prefers-reduced-motion)").matches)&&0===e.button&&!e.metaKey&&!e.ctrlKey&&"closest"in e.target&&(a=e.target.closest(o))&&"a"===a.tagName.toLowerCase()&&!e.target.closest(A.ignore)&&a.hostname===M.location.hostname&&a.pathname===M.location.pathname&&/#/.test(a.href)){var t=i(a.hash),n=A.topOnEmptyHash&&"#"===t?document.documentElement:document.querySelector(t);(n=n||"#top"!==t?n:document.documentElement)&&(e.preventDefault(),(function(e){if(history.replaceState&&e.updateURL&&!history.state){var t=M.location.hash;t=t||"",history.replaceState({smoothScroll:JSON.stringify(e),anchor:t||M.pageYOffset},document.title,t||M.location.href)}})(A),q.animateScroll(n,a))}},n=function(e){if(null!==history.state&&history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(A)){var t=history.state.anchor;"string"==typeof t&&t&&!(t=document.querySelector(i(history.state.anchor)))||q.animateScroll(t,null,{updateURL:!1})}};return q.destroy=function(){A&&(document.removeEventListener("click",t,!1),M.removeEventListener("popstate",n,!1),q.cancelScroll(),C=O=a=A=null)},q.init=function(e){if(!("querySelector"in document&&"addEventListener"in M&&"requestAnimationFrame"in M&&"closest"in M.Element.prototype))throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";q.destroy(),A=F(I,e||{}),O=A.header?document.querySelector(A.header):null,document.addEventListener("click",t,!1),A.updateURL&&A.popstate&&M.addEventListener("popstate",n,!1)},q.init(e),q}}));
\ No newline at end of file
diff --git a/package.json b/package.json
index fdb24e0..53e5ebb 100755
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
 	"name": "smooth-scroll",
-	"version": "15.2.0",
+	"version": "15.2.1",
 	"description": "Animate scrolling to anchor links",
 	"main": "./dist/smooth-scroll.polyfills.min.js",
 	"author": {

From 559e3e4765ca981d6157bacaa71f4b28b1c62609 Mon Sep 17 00:00:00 2001
From: Marcel Greter <marcel.greter@ocbnet.ch>
Date: Tue, 12 Feb 2019 15:32:27 +0100
Subject: [PATCH 30/51] Prevent scrolling if event was canceled by inner
 handler

Since smooth-scroll event is attached to the body, another
handler may cancel the default behavior, but the event will
still bubble up to the body, triggering a page scroll.
It seems reasonable that if any inner event handle cancels
the default behavior that no scrolling should be triggered.
---
 src/js/smooth-scroll/smooth-scroll.js | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/js/smooth-scroll/smooth-scroll.js b/src/js/smooth-scroll/smooth-scroll.js
index 29f05e9..ebaa266 100755
--- a/src/js/smooth-scroll/smooth-scroll.js
+++ b/src/js/smooth-scroll/smooth-scroll.js
@@ -495,6 +495,9 @@
 			// Don't run if the user prefers reduced motion
 			if (reduceMotion(settings)) return;
 
+			// Don't run if event was canceled but still bubbled up
+			if (event.defaultPrevented) return;
+
 			// Don't run if right-click or command/control + click
 			if (event.button !== 0 || event.metaKey || event.ctrlKey) return;
 

From 527fa35308fc03d16a833349aa48f162bea7ddd5 Mon Sep 17 00:00:00 2001
From: cferdinandi <chris@gomakethings.com>
Date: Fri, 1 Mar 2019 14:09:57 -0500
Subject: [PATCH 31/51] Updated readme

---
 .github/main.workflow |  9 ---------
 README.md             | 12 ++++++------
 2 files changed, 6 insertions(+), 15 deletions(-)
 delete mode 100644 .github/main.workflow

diff --git a/.github/main.workflow b/.github/main.workflow
deleted file mode 100644
index fa44e39..0000000
--- a/.github/main.workflow
+++ /dev/null
@@ -1,9 +0,0 @@
-workflow "Release" {
-  on = "release"
-  resolves = ["Publish to NPM"]
-}
-
-action "Publish to NPM" {
-  uses = "actions/npm@e7aaefed7c9f2e83d493ff810f17fa5ccd7ed437"
-  runs = "npm publish"
-}
diff --git a/README.md b/README.md
index 516ff16..cc327e6 100755
--- a/README.md
+++ b/README.md
@@ -153,13 +153,13 @@ var scroll = new SmoothScroll('a[href*="#"]', {
 
 
 
-## Options and Settings
+## API
 
 Smooth Scroll includes smart defaults and works right out of the box. But if you want to customize things, it also has a robust API that provides multiple ways for you to adjust the default options and settings.
 
-### Global Settings
+### Options and Settings
 
-You can pass options and callbacks into Smooth Scroll through the `init()` function:
+You can pass options and callbacks into Smooth Scroll when instantiating.
 
 ```javascript
 var scroll = new SmoothScroll('a[href*="#"]', {
@@ -246,7 +246,7 @@ document.addEventListener('scrollCancel', logScrollEvent, false);
 
 ### Methods
 
-You can also call Smooth Scroll's methods in your own scripts.
+Smooth Scroll also exposes several public methods.
 
 #### animateScroll()
 Animate scrolling to an anchor.
@@ -297,7 +297,7 @@ scroll.cancelScroll();
 ***Note:*** *This does not handle focus management. The user will stop in place, and focus will remain on the anchor link that triggered the scroll.*
 
 #### init()
-Initialize Smooth Scroll. This is called automatically when you setup your `new SmoothScroll` object, but can be used to reinitialize your instance.
+Initialize Smooth Scroll. This is called automatically when you instantiate your `new SmoothScroll` object, but can be used to reinitialize your instance.
 
 ```javascript
 var scroll = new SmoothScroll();
@@ -305,7 +305,7 @@ scroll.init('.some-selector');
 ```
 
 #### destroy()
-Destroy the current `smoothScroll.init()`. This is called automatically during the `init` function to remove any existing initializations.
+Destroy the current initialization. This is called automatically in the `init` method to remove any existing initializations.
 
 ```javascript
 var scroll = new SmoothScroll();

From 654a44a1d9b1ab6c8dfb11cc7446f69d17d2b0a9 Mon Sep 17 00:00:00 2001
From: cferdinandi <chris@gomakethings.com>
Date: Thu, 7 Mar 2019 14:07:40 -0500
Subject: [PATCH 32/51] Removed the public init() method

---
 .github/main.workflow                 | 10 ++++++++
 README.md                             | 37 +++++----------------------
 dist/smooth-scroll.js                 |  6 ++---
 dist/smooth-scroll.min.js             |  4 +--
 dist/smooth-scroll.polyfills.js       |  6 ++---
 dist/smooth-scroll.polyfills.min.js   |  4 +--
 package.json                          |  2 +-
 src/js/smooth-scroll/smooth-scroll.js |  4 +--
 8 files changed, 29 insertions(+), 44 deletions(-)
 create mode 100644 .github/main.workflow

diff --git a/.github/main.workflow b/.github/main.workflow
new file mode 100644
index 0000000..3f7dcd2
--- /dev/null
+++ b/.github/main.workflow
@@ -0,0 +1,10 @@
+workflow "publish on release" {
+  on = "push"
+  resolves = ["publish"]
+}
+
+action "publish" {
+  uses = "actions/npm@master"
+  args = "publish"
+  secrets = ["NPM_AUTH_TOKEN"]
+}
\ No newline at end of file
diff --git a/README.md b/README.md
index cc327e6..fce3c8a 100755
--- a/README.md
+++ b/README.md
@@ -1,7 +1,11 @@
 # Smooth Scroll [![Build Status](https://travis-ci.org/cferdinandi/smooth-scroll.svg)](https://travis-ci.org/cferdinandi/smooth-scroll)
 A lightweight script to animate scrolling to anchor links. Smooth Scroll works great with [Gumshoe](https://github.com/cferdinandi/gumshoe).
 
-[View the Demo](https://codepen.io/cferdinandi/pen/wQzrdM)
+**[View the Demo on CodePen &rarr;](https://codepen.io/cferdinandi/pen/wQzrdM)**
+
+[Getting Started](#getting-started) | [Scroll Speed](#scroll-speed) | [Easing Options](#easing-options) | [API](#api) | [What's new?](#whats-new) | [Known Issues](#known-issues) | [Browser Compatibility](#browser-compatibility) | [License](#license)
+
+*__Quick aside:__ you might not need this library. There's [a native CSS way to handle smooth scrolling](https://gomakethings.com/smooth-scrolling-links-with-only-css/) that might fit your needs.*
 
 
 <hr>
@@ -296,14 +300,6 @@ scroll.cancelScroll();
 
 ***Note:*** *This does not handle focus management. The user will stop in place, and focus will remain on the anchor link that triggered the scroll.*
 
-#### init()
-Initialize Smooth Scroll. This is called automatically when you instantiate your `new SmoothScroll` object, but can be used to reinitialize your instance.
-
-```javascript
-var scroll = new SmoothScroll();
-scroll.init('.some-selector');
-```
-
 #### destroy()
 Destroy the current initialization. This is called automatically in the `init` method to remove any existing initializations.
 
@@ -333,28 +329,7 @@ If you have multiple fixed headers, pass in the last one in the markup.
 
 
 
-## Working with the Source Files
-
-If you would prefer, you can work with the development code in the `src` directory using the included [Gulp build system](http://gulpjs.com/). This compiles, lints, and minifies code.
-
-### Dependencies
-Make sure these are installed first.
-
-* [Node.js](http://nodejs.org)
-* [Gulp](http://gulpjs.com) `sudo npm install -g gulp`
-
-### Quick Start
-
-1. In bash/terminal/command line, `cd` into your project directory.
-2. Run `npm install` to install required files.
-3. When it's done installing, run one of the task runners to get going:
-	* `gulp` manually compiles files.
-	* `gulp watch` automatically compiles files when changes are made and applies changes using [LiveReload](http://livereload.com/).
-
-
-
-
-## Migrating to Smooth Scroll 15 from Older Versions
+## What's new?
 
 Scroll duration now varies based on distance traveled. If you want to maintain the old scroll animation duration behavior, set the `speedAsDuration` option to `true`.
 
diff --git a/dist/smooth-scroll.js b/dist/smooth-scroll.js
index e0cf796..58e48fb 100755
--- a/dist/smooth-scroll.js
+++ b/dist/smooth-scroll.js
@@ -1,5 +1,5 @@
 /*!
- * smooth-scroll v15.2.1
+ * smooth-scroll v16.0.0
  * Animate scrolling to anchor links
  * (c) 2019 Chris Ferdinandi
  * MIT License
@@ -589,7 +589,7 @@
 		 * Initialize Smooth Scroll
 		 * @param {Object} options User settings
 		 */
-		smoothScroll.init = function (options) {
+		var init = function () {
 
 			// feature test
 			if (!supports()) throw 'Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.';
@@ -616,7 +616,7 @@
 		// Initialize plugin
 		//
 
-		smoothScroll.init(options);
+		init();
 
 
 		//
diff --git a/dist/smooth-scroll.min.js b/dist/smooth-scroll.min.js
index 6dec112..a8b795e 100755
--- a/dist/smooth-scroll.min.js
+++ b/dist/smooth-scroll.min.js
@@ -1,2 +1,2 @@
-/*! smooth-scroll v15.2.1 | (c) 2019 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
-!(function(t,e){"function"==typeof define&&define.amd?define([],(function(){return e(t)})):"object"==typeof exports?module.exports=e(t):t.SmoothScroll=e(t)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(C){"use strict";var L={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,speedAsDuration:!1,durationMax:null,durationMin:null,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},H=function(){var n={};return Array.prototype.forEach.call(arguments,(function(t){for(var e in t){if(!t.hasOwnProperty(e))return;n[e]=t[e]}})),n},r=function(t){"#"===t.charAt(0)&&(t=t.substr(1));for(var e,n=String(t),o=n.length,a=-1,r="",i=n.charCodeAt(0);++a<o;){if(0===(e=n.charCodeAt(a)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");1<=e&&e<=31||127==e||0===a&&48<=e&&e<=57||1===a&&48<=e&&e<=57&&45===i?r+="\\"+e.toString(16)+" ":r+=128<=e||45===e||95===e||48<=e&&e<=57||65<=e&&e<=90||97<=e&&e<=122?n.charAt(a):"\\"+n.charAt(a)}return"#"+r},q=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},x=function(t){return t?(e=t,parseInt(C.getComputedStyle(e).height,10)+t.offsetTop):0;var e},Q=function(t,e,n,o){if(e.emitEvents&&"function"==typeof C.CustomEvent){var a=new CustomEvent(t,{bubbles:!0,detail:{anchor:n,toggle:o}});document.dispatchEvent(a)}};return function(o,t){var I,a,M,A,w={};w.cancelScroll=function(t){cancelAnimationFrame(A),A=null,t||Q("scrollCancel",I)},w.animateScroll=function(i,s,t){w.cancelScroll();var c=H(I||L,t||{}),u="[object Number]"===Object.prototype.toString.call(i),e=u||!i.tagName?null:i;if(u||e){var l=C.pageYOffset;c.header&&!M&&(M=document.querySelector(c.header));var n,o,a,d,r,f,m,h,p=x(M),g=u?i:(function(t,e,n,o){var a=0;if(t.offsetParent)for(;a+=t.offsetTop,t=t.offsetParent;);return a=Math.max(a-e-n,0),o&&(a=Math.min(a,q()-C.innerHeight)),a})(e,p,parseInt("function"==typeof c.offset?c.offset(i,s):c.offset,10),c.clip),y=g-l,S=q(),v=0,E=(n=y,a=(o=c).speedAsDuration?o.speed:Math.abs(n/1e3*o.speed),o.durationMax&&a>o.durationMax?o.durationMax:o.durationMin&&a<o.durationMin?o.durationMin:parseInt(a,10)),b=function(t,e){var n,o,a,r=C.pageYOffset;if(t==e||r==e||(l<e&&C.innerHeight+r)>=S)return w.cancelScroll(!0),o=e,a=u,0===(n=i)&&document.body.focus(),a||(n.focus(),document.activeElement!==n&&(n.setAttribute("tabindex","-1"),n.focus(),n.style.outline="none"),C.scrollTo(0,o)),Q("scrollStop",c,i,s),!(A=d=null)},O=function(t){var e,n,o;d||(d=t),v+=t-d,f=l+y*(n=r=1<(r=0===E?0:v/E)?1:r,"easeInQuad"===(e=c).easing&&(o=n*n),"easeOutQuad"===e.easing&&(o=n*(2-n)),"easeInOutQuad"===e.easing&&(o=n<.5?2*n*n:(4-2*n)*n-1),"easeInCubic"===e.easing&&(o=n*n*n),"easeOutCubic"===e.easing&&(o=--n*n*n+1),"easeInOutCubic"===e.easing&&(o=n<.5?4*n*n*n:(n-1)*(2*n-2)*(2*n-2)+1),"easeInQuart"===e.easing&&(o=n*n*n*n),"easeOutQuart"===e.easing&&(o=1- --n*n*n*n),"easeInOutQuart"===e.easing&&(o=n<.5?8*n*n*n*n:1-8*--n*n*n*n),"easeInQuint"===e.easing&&(o=n*n*n*n*n),"easeOutQuint"===e.easing&&(o=1+--n*n*n*n*n),"easeInOutQuint"===e.easing&&(o=n<.5?16*n*n*n*n*n:1+16*--n*n*n*n*n),e.customEasing&&(o=e.customEasing(n)),o||n),C.scrollTo(0,Math.floor(f)),b(f,g)||(A=C.requestAnimationFrame(O),d=t)};0===C.pageYOffset&&C.scrollTo(0,0),m=i,h=c,u||history.pushState&&h.updateURL&&history.pushState({smoothScroll:JSON.stringify(h),anchor:m.id},document.title,m===document.documentElement?"#top":"#"+m.id),Q("scrollStart",c,i,s),w.cancelScroll(!0),C.requestAnimationFrame(O)}};var e=function(t){if(!("matchMedia"in C&&C.matchMedia("(prefers-reduced-motion)").matches)&&0===t.button&&!t.metaKey&&!t.ctrlKey&&"closest"in t.target&&(a=t.target.closest(o))&&"a"===a.tagName.toLowerCase()&&!t.target.closest(I.ignore)&&a.hostname===C.location.hostname&&a.pathname===C.location.pathname&&/#/.test(a.href)){var e=r(a.hash),n=I.topOnEmptyHash&&"#"===e?document.documentElement:document.querySelector(e);(n=n||"#top"!==e?n:document.documentElement)&&(t.preventDefault(),(function(t){if(history.replaceState&&t.updateURL&&!history.state){var e=C.location.hash;e=e||"",history.replaceState({smoothScroll:JSON.stringify(t),anchor:e||C.pageYOffset},document.title,e||C.location.href)}})(I),w.animateScroll(n,a))}},n=function(t){if(null!==history.state&&history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(I)){var e=history.state.anchor;"string"==typeof e&&e&&!(e=document.querySelector(r(history.state.anchor)))||w.animateScroll(e,null,{updateURL:!1})}};return w.destroy=function(){I&&(document.removeEventListener("click",e,!1),C.removeEventListener("popstate",n,!1),w.cancelScroll(),A=M=a=I=null)},w.init=function(t){if(!("querySelector"in document&&"addEventListener"in C&&"requestAnimationFrame"in C&&"closest"in C.Element.prototype))throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";w.destroy(),I=H(L,t||{}),M=I.header?document.querySelector(I.header):null,document.addEventListener("click",e,!1),I.updateURL&&I.popstate&&C.addEventListener("popstate",n,!1)},w.init(t),w}}));
\ No newline at end of file
+/*! smooth-scroll v16.0.0 | (c) 2019 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
+!(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(C){"use strict";var L={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,speedAsDuration:!1,durationMax:null,durationMin:null,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},H=function(){var n={};return Array.prototype.forEach.call(arguments,(function(e){for(var t in e){if(!e.hasOwnProperty(t))return;n[t]=e[t]}})),n},r=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,a=-1,r="",i=n.charCodeAt(0);++a<o;){if(0===(t=n.charCodeAt(a)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");1<=t&&t<=31||127==t||0===a&&48<=t&&t<=57||1===a&&48<=t&&t<=57&&45===i?r+="\\"+t.toString(16)+" ":r+=128<=t||45===t||95===t||48<=t&&t<=57||65<=t&&t<=90||97<=t&&t<=122?n.charAt(a):"\\"+n.charAt(a)}return"#"+r},q=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},x=function(e){return e?(t=e,parseInt(C.getComputedStyle(t).height,10)+e.offsetTop):0;var t},Q=function(e,t,n,o){if(t.emitEvents&&"function"==typeof C.CustomEvent){var a=new CustomEvent(e,{bubbles:!0,detail:{anchor:n,toggle:o}});document.dispatchEvent(a)}};return function(o,e){var I,a,M,A,w={};w.cancelScroll=function(e){cancelAnimationFrame(A),A=null,e||Q("scrollCancel",I)},w.animateScroll=function(i,s,e){w.cancelScroll();var c=H(I||L,e||{}),u="[object Number]"===Object.prototype.toString.call(i),t=u||!i.tagName?null:i;if(u||t){var l=C.pageYOffset;c.header&&!M&&(M=document.querySelector(c.header));var n,o,a,d,r,f,m,h,p=x(M),g=u?i:(function(e,t,n,o){var a=0;if(e.offsetParent)for(;a+=e.offsetTop,e=e.offsetParent;);return a=Math.max(a-t-n,0),o&&(a=Math.min(a,q()-C.innerHeight)),a})(t,p,parseInt("function"==typeof c.offset?c.offset(i,s):c.offset,10),c.clip),y=g-l,S=q(),v=0,E=(n=y,a=(o=c).speedAsDuration?o.speed:Math.abs(n/1e3*o.speed),o.durationMax&&a>o.durationMax?o.durationMax:o.durationMin&&a<o.durationMin?o.durationMin:parseInt(a,10)),b=function(e,t){var n,o,a,r=C.pageYOffset;if(e==t||r==t||(l<t&&C.innerHeight+r)>=S)return w.cancelScroll(!0),o=t,a=u,0===(n=i)&&document.body.focus(),a||(n.focus(),document.activeElement!==n&&(n.setAttribute("tabindex","-1"),n.focus(),n.style.outline="none"),C.scrollTo(0,o)),Q("scrollStop",c,i,s),!(A=d=null)},O=function(e){var t,n,o;d||(d=e),v+=e-d,f=l+y*(n=r=1<(r=0===E?0:v/E)?1:r,"easeInQuad"===(t=c).easing&&(o=n*n),"easeOutQuad"===t.easing&&(o=n*(2-n)),"easeInOutQuad"===t.easing&&(o=n<.5?2*n*n:(4-2*n)*n-1),"easeInCubic"===t.easing&&(o=n*n*n),"easeOutCubic"===t.easing&&(o=--n*n*n+1),"easeInOutCubic"===t.easing&&(o=n<.5?4*n*n*n:(n-1)*(2*n-2)*(2*n-2)+1),"easeInQuart"===t.easing&&(o=n*n*n*n),"easeOutQuart"===t.easing&&(o=1- --n*n*n*n),"easeInOutQuart"===t.easing&&(o=n<.5?8*n*n*n*n:1-8*--n*n*n*n),"easeInQuint"===t.easing&&(o=n*n*n*n*n),"easeOutQuint"===t.easing&&(o=1+--n*n*n*n*n),"easeInOutQuint"===t.easing&&(o=n<.5?16*n*n*n*n*n:1+16*--n*n*n*n*n),t.customEasing&&(o=t.customEasing(n)),o||n),C.scrollTo(0,Math.floor(f)),b(f,g)||(A=C.requestAnimationFrame(O),d=e)};0===C.pageYOffset&&C.scrollTo(0,0),m=i,h=c,u||history.pushState&&h.updateURL&&history.pushState({smoothScroll:JSON.stringify(h),anchor:m.id},document.title,m===document.documentElement?"#top":"#"+m.id),Q("scrollStart",c,i,s),w.cancelScroll(!0),C.requestAnimationFrame(O)}};var t=function(e){if(!("matchMedia"in C&&C.matchMedia("(prefers-reduced-motion)").matches)&&0===e.button&&!e.metaKey&&!e.ctrlKey&&"closest"in e.target&&(a=e.target.closest(o))&&"a"===a.tagName.toLowerCase()&&!e.target.closest(I.ignore)&&a.hostname===C.location.hostname&&a.pathname===C.location.pathname&&/#/.test(a.href)){var t=r(a.hash),n=I.topOnEmptyHash&&"#"===t?document.documentElement:document.querySelector(t);(n=n||"#top"!==t?n:document.documentElement)&&(e.preventDefault(),(function(e){if(history.replaceState&&e.updateURL&&!history.state){var t=C.location.hash;t=t||"",history.replaceState({smoothScroll:JSON.stringify(e),anchor:t||C.pageYOffset},document.title,t||C.location.href)}})(I),w.animateScroll(n,a))}},n=function(e){if(null!==history.state&&history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(I)){var t=history.state.anchor;"string"==typeof t&&t&&!(t=document.querySelector(r(history.state.anchor)))||w.animateScroll(t,null,{updateURL:!1})}};w.destroy=function(){I&&(document.removeEventListener("click",t,!1),C.removeEventListener("popstate",n,!1),w.cancelScroll(),A=M=a=I=null)};return (function(){if(!("querySelector"in document&&"addEventListener"in C&&"requestAnimationFrame"in C&&"closest"in C.Element.prototype))throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";w.destroy(),I=H(L,e||{}),M=I.header?document.querySelector(I.header):null,document.addEventListener("click",t,!1),I.updateURL&&I.popstate&&C.addEventListener("popstate",n,!1)})(),w}}));
\ No newline at end of file
diff --git a/dist/smooth-scroll.polyfills.js b/dist/smooth-scroll.polyfills.js
index 4b17c9b..3b8fe90 100755
--- a/dist/smooth-scroll.polyfills.js
+++ b/dist/smooth-scroll.polyfills.js
@@ -1,5 +1,5 @@
 /*!
- * smooth-scroll v15.2.1
+ * smooth-scroll v16.0.0
  * Animate scrolling to anchor links
  * (c) 2019 Chris Ferdinandi
  * MIT License
@@ -659,7 +659,7 @@ if (window.Element && !Element.prototype.closest) {
 		 * Initialize Smooth Scroll
 		 * @param {Object} options User settings
 		 */
-		smoothScroll.init = function (options) {
+		var init = function () {
 
 			// feature test
 			if (!supports()) throw 'Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.';
@@ -686,7 +686,7 @@ if (window.Element && !Element.prototype.closest) {
 		// Initialize plugin
 		//
 
-		smoothScroll.init(options);
+		init();
 
 
 		//
diff --git a/dist/smooth-scroll.polyfills.min.js b/dist/smooth-scroll.polyfills.min.js
index faddc00..c845789 100755
--- a/dist/smooth-scroll.polyfills.min.js
+++ b/dist/smooth-scroll.polyfills.min.js
@@ -1,2 +1,2 @@
-/*! smooth-scroll v15.2.1 | (c) 2019 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
-window.Element&&!Element.prototype.closest&&(Element.prototype.closest=function(e){var t,n=(this.document||this.ownerDocument).querySelectorAll(e),o=this;do{for(t=n.length;0<=--t&&n.item(t)!==o;);}while(t<0&&(o=o.parentElement));return o}),(function(){if("function"==typeof window.CustomEvent)return;function e(e,t){t=t||{bubbles:!1,cancelable:!1,detail:void 0};var n=document.createEvent("CustomEvent");return n.initCustomEvent(e,t.bubbles,t.cancelable,t.detail),n}e.prototype=window.Event.prototype,window.CustomEvent=e})(),(function(){for(var i=0,e=["ms","moz","webkit","o"],t=0;t<e.length&&!window.requestAnimationFrame;++t)window.requestAnimationFrame=window[e[t]+"RequestAnimationFrame"],window.cancelAnimationFrame=window[e[t]+"CancelAnimationFrame"]||window[e[t]+"CancelRequestAnimationFrame"];window.requestAnimationFrame||(window.requestAnimationFrame=function(e,t){var n=(new Date).getTime(),o=Math.max(0,16-(n-i)),a=window.setTimeout((function(){e(n+o)}),o);return i=n+o,a}),window.cancelAnimationFrame||(window.cancelAnimationFrame=function(e){clearTimeout(e)})})(),(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(M){"use strict";var I={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,speedAsDuration:!1,durationMax:null,durationMin:null,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},F=function(){var n={};return Array.prototype.forEach.call(arguments,(function(e){for(var t in e){if(!e.hasOwnProperty(t))return;n[t]=e[t]}})),n},i=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,a=-1,i="",r=n.charCodeAt(0);++a<o;){if(0===(t=n.charCodeAt(a)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");1<=t&&t<=31||127==t||0===a&&48<=t&&t<=57||1===a&&48<=t&&t<=57&&45===r?i+="\\"+t.toString(16)+" ":i+=128<=t||45===t||95===t||48<=t&&t<=57||65<=t&&t<=90||97<=t&&t<=122?n.charAt(a):"\\"+n.charAt(a)}return"#"+i},L=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},x=function(e){return e?(t=e,parseInt(M.getComputedStyle(t).height,10)+e.offsetTop):0;var t},H=function(e,t,n,o){if(t.emitEvents&&"function"==typeof M.CustomEvent){var a=new CustomEvent(e,{bubbles:!0,detail:{anchor:n,toggle:o}});document.dispatchEvent(a)}};return function(o,e){var A,a,O,C,q={};q.cancelScroll=function(e){cancelAnimationFrame(C),C=null,e||H("scrollCancel",A)},q.animateScroll=function(r,c,e){q.cancelScroll();var s=F(A||I,e||{}),u="[object Number]"===Object.prototype.toString.call(r),t=u||!r.tagName?null:r;if(u||t){var l=M.pageYOffset;s.header&&!O&&(O=document.querySelector(s.header));var n,o,a,m,i,d,f,h,p=x(O),g=u?r:(function(e,t,n,o){var a=0;if(e.offsetParent)for(;a+=e.offsetTop,e=e.offsetParent;);return a=Math.max(a-t-n,0),o&&(a=Math.min(a,L()-M.innerHeight)),a})(t,p,parseInt("function"==typeof s.offset?s.offset(r,c):s.offset,10),s.clip),y=g-l,w=L(),v=0,S=(n=y,a=(o=s).speedAsDuration?o.speed:Math.abs(n/1e3*o.speed),o.durationMax&&a>o.durationMax?o.durationMax:o.durationMin&&a<o.durationMin?o.durationMin:parseInt(a,10)),E=function(e,t){var n,o,a,i=M.pageYOffset;if(e==t||i==t||(l<t&&M.innerHeight+i)>=w)return q.cancelScroll(!0),o=t,a=u,0===(n=r)&&document.body.focus(),a||(n.focus(),document.activeElement!==n&&(n.setAttribute("tabindex","-1"),n.focus(),n.style.outline="none"),M.scrollTo(0,o)),H("scrollStop",s,r,c),!(C=m=null)},b=function(e){var t,n,o;m||(m=e),v+=e-m,d=l+y*(n=i=1<(i=0===S?0:v/S)?1:i,"easeInQuad"===(t=s).easing&&(o=n*n),"easeOutQuad"===t.easing&&(o=n*(2-n)),"easeInOutQuad"===t.easing&&(o=n<.5?2*n*n:(4-2*n)*n-1),"easeInCubic"===t.easing&&(o=n*n*n),"easeOutCubic"===t.easing&&(o=--n*n*n+1),"easeInOutCubic"===t.easing&&(o=n<.5?4*n*n*n:(n-1)*(2*n-2)*(2*n-2)+1),"easeInQuart"===t.easing&&(o=n*n*n*n),"easeOutQuart"===t.easing&&(o=1- --n*n*n*n),"easeInOutQuart"===t.easing&&(o=n<.5?8*n*n*n*n:1-8*--n*n*n*n),"easeInQuint"===t.easing&&(o=n*n*n*n*n),"easeOutQuint"===t.easing&&(o=1+--n*n*n*n*n),"easeInOutQuint"===t.easing&&(o=n<.5?16*n*n*n*n*n:1+16*--n*n*n*n*n),t.customEasing&&(o=t.customEasing(n)),o||n),M.scrollTo(0,Math.floor(d)),E(d,g)||(C=M.requestAnimationFrame(b),m=e)};0===M.pageYOffset&&M.scrollTo(0,0),f=r,h=s,u||history.pushState&&h.updateURL&&history.pushState({smoothScroll:JSON.stringify(h),anchor:f.id},document.title,f===document.documentElement?"#top":"#"+f.id),H("scrollStart",s,r,c),q.cancelScroll(!0),M.requestAnimationFrame(b)}};var t=function(e){if(!("matchMedia"in M&&M.matchMedia("(prefers-reduced-motion)").matches)&&0===e.button&&!e.metaKey&&!e.ctrlKey&&"closest"in e.target&&(a=e.target.closest(o))&&"a"===a.tagName.toLowerCase()&&!e.target.closest(A.ignore)&&a.hostname===M.location.hostname&&a.pathname===M.location.pathname&&/#/.test(a.href)){var t=i(a.hash),n=A.topOnEmptyHash&&"#"===t?document.documentElement:document.querySelector(t);(n=n||"#top"!==t?n:document.documentElement)&&(e.preventDefault(),(function(e){if(history.replaceState&&e.updateURL&&!history.state){var t=M.location.hash;t=t||"",history.replaceState({smoothScroll:JSON.stringify(e),anchor:t||M.pageYOffset},document.title,t||M.location.href)}})(A),q.animateScroll(n,a))}},n=function(e){if(null!==history.state&&history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(A)){var t=history.state.anchor;"string"==typeof t&&t&&!(t=document.querySelector(i(history.state.anchor)))||q.animateScroll(t,null,{updateURL:!1})}};return q.destroy=function(){A&&(document.removeEventListener("click",t,!1),M.removeEventListener("popstate",n,!1),q.cancelScroll(),C=O=a=A=null)},q.init=function(e){if(!("querySelector"in document&&"addEventListener"in M&&"requestAnimationFrame"in M&&"closest"in M.Element.prototype))throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";q.destroy(),A=F(I,e||{}),O=A.header?document.querySelector(A.header):null,document.addEventListener("click",t,!1),A.updateURL&&A.popstate&&M.addEventListener("popstate",n,!1)},q.init(e),q}}));
\ No newline at end of file
+/*! smooth-scroll v16.0.0 | (c) 2019 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
+window.Element&&!Element.prototype.closest&&(Element.prototype.closest=function(e){var t,n=(this.document||this.ownerDocument).querySelectorAll(e),o=this;do{for(t=n.length;0<=--t&&n.item(t)!==o;);}while(t<0&&(o=o.parentElement));return o}),(function(){if("function"==typeof window.CustomEvent)return;function e(e,t){t=t||{bubbles:!1,cancelable:!1,detail:void 0};var n=document.createEvent("CustomEvent");return n.initCustomEvent(e,t.bubbles,t.cancelable,t.detail),n}e.prototype=window.Event.prototype,window.CustomEvent=e})(),(function(){for(var r=0,e=["ms","moz","webkit","o"],t=0;t<e.length&&!window.requestAnimationFrame;++t)window.requestAnimationFrame=window[e[t]+"RequestAnimationFrame"],window.cancelAnimationFrame=window[e[t]+"CancelAnimationFrame"]||window[e[t]+"CancelRequestAnimationFrame"];window.requestAnimationFrame||(window.requestAnimationFrame=function(e,t){var n=(new Date).getTime(),o=Math.max(0,16-(n-r)),a=window.setTimeout((function(){e(n+o)}),o);return r=n+o,a}),window.cancelAnimationFrame||(window.cancelAnimationFrame=function(e){clearTimeout(e)})})(),(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(M){"use strict";var I={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,speedAsDuration:!1,durationMax:null,durationMin:null,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},F=function(){var n={};return Array.prototype.forEach.call(arguments,(function(e){for(var t in e){if(!e.hasOwnProperty(t))return;n[t]=e[t]}})),n},r=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,a=-1,r="",i=n.charCodeAt(0);++a<o;){if(0===(t=n.charCodeAt(a)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");1<=t&&t<=31||127==t||0===a&&48<=t&&t<=57||1===a&&48<=t&&t<=57&&45===i?r+="\\"+t.toString(16)+" ":r+=128<=t||45===t||95===t||48<=t&&t<=57||65<=t&&t<=90||97<=t&&t<=122?n.charAt(a):"\\"+n.charAt(a)}return"#"+r},L=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},x=function(e){return e?(t=e,parseInt(M.getComputedStyle(t).height,10)+e.offsetTop):0;var t},H=function(e,t,n,o){if(t.emitEvents&&"function"==typeof M.CustomEvent){var a=new CustomEvent(e,{bubbles:!0,detail:{anchor:n,toggle:o}});document.dispatchEvent(a)}};return function(o,e){var A,a,O,C,q={};q.cancelScroll=function(e){cancelAnimationFrame(C),C=null,e||H("scrollCancel",A)},q.animateScroll=function(i,c,e){q.cancelScroll();var s=F(A||I,e||{}),u="[object Number]"===Object.prototype.toString.call(i),t=u||!i.tagName?null:i;if(u||t){var l=M.pageYOffset;s.header&&!O&&(O=document.querySelector(s.header));var n,o,a,m,r,d,f,h,p=x(O),g=u?i:(function(e,t,n,o){var a=0;if(e.offsetParent)for(;a+=e.offsetTop,e=e.offsetParent;);return a=Math.max(a-t-n,0),o&&(a=Math.min(a,L()-M.innerHeight)),a})(t,p,parseInt("function"==typeof s.offset?s.offset(i,c):s.offset,10),s.clip),y=g-l,w=L(),v=0,S=(n=y,a=(o=s).speedAsDuration?o.speed:Math.abs(n/1e3*o.speed),o.durationMax&&a>o.durationMax?o.durationMax:o.durationMin&&a<o.durationMin?o.durationMin:parseInt(a,10)),E=function(e,t){var n,o,a,r=M.pageYOffset;if(e==t||r==t||(l<t&&M.innerHeight+r)>=w)return q.cancelScroll(!0),o=t,a=u,0===(n=i)&&document.body.focus(),a||(n.focus(),document.activeElement!==n&&(n.setAttribute("tabindex","-1"),n.focus(),n.style.outline="none"),M.scrollTo(0,o)),H("scrollStop",s,i,c),!(C=m=null)},b=function(e){var t,n,o;m||(m=e),v+=e-m,d=l+y*(n=r=1<(r=0===S?0:v/S)?1:r,"easeInQuad"===(t=s).easing&&(o=n*n),"easeOutQuad"===t.easing&&(o=n*(2-n)),"easeInOutQuad"===t.easing&&(o=n<.5?2*n*n:(4-2*n)*n-1),"easeInCubic"===t.easing&&(o=n*n*n),"easeOutCubic"===t.easing&&(o=--n*n*n+1),"easeInOutCubic"===t.easing&&(o=n<.5?4*n*n*n:(n-1)*(2*n-2)*(2*n-2)+1),"easeInQuart"===t.easing&&(o=n*n*n*n),"easeOutQuart"===t.easing&&(o=1- --n*n*n*n),"easeInOutQuart"===t.easing&&(o=n<.5?8*n*n*n*n:1-8*--n*n*n*n),"easeInQuint"===t.easing&&(o=n*n*n*n*n),"easeOutQuint"===t.easing&&(o=1+--n*n*n*n*n),"easeInOutQuint"===t.easing&&(o=n<.5?16*n*n*n*n*n:1+16*--n*n*n*n*n),t.customEasing&&(o=t.customEasing(n)),o||n),M.scrollTo(0,Math.floor(d)),E(d,g)||(C=M.requestAnimationFrame(b),m=e)};0===M.pageYOffset&&M.scrollTo(0,0),f=i,h=s,u||history.pushState&&h.updateURL&&history.pushState({smoothScroll:JSON.stringify(h),anchor:f.id},document.title,f===document.documentElement?"#top":"#"+f.id),H("scrollStart",s,i,c),q.cancelScroll(!0),M.requestAnimationFrame(b)}};var t=function(e){if(!("matchMedia"in M&&M.matchMedia("(prefers-reduced-motion)").matches)&&0===e.button&&!e.metaKey&&!e.ctrlKey&&"closest"in e.target&&(a=e.target.closest(o))&&"a"===a.tagName.toLowerCase()&&!e.target.closest(A.ignore)&&a.hostname===M.location.hostname&&a.pathname===M.location.pathname&&/#/.test(a.href)){var t=r(a.hash),n=A.topOnEmptyHash&&"#"===t?document.documentElement:document.querySelector(t);(n=n||"#top"!==t?n:document.documentElement)&&(e.preventDefault(),(function(e){if(history.replaceState&&e.updateURL&&!history.state){var t=M.location.hash;t=t||"",history.replaceState({smoothScroll:JSON.stringify(e),anchor:t||M.pageYOffset},document.title,t||M.location.href)}})(A),q.animateScroll(n,a))}},n=function(e){if(null!==history.state&&history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(A)){var t=history.state.anchor;"string"==typeof t&&t&&!(t=document.querySelector(r(history.state.anchor)))||q.animateScroll(t,null,{updateURL:!1})}};q.destroy=function(){A&&(document.removeEventListener("click",t,!1),M.removeEventListener("popstate",n,!1),q.cancelScroll(),C=O=a=A=null)};return (function(){if(!("querySelector"in document&&"addEventListener"in M&&"requestAnimationFrame"in M&&"closest"in M.Element.prototype))throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";q.destroy(),A=F(I,e||{}),O=A.header?document.querySelector(A.header):null,document.addEventListener("click",t,!1),A.updateURL&&A.popstate&&M.addEventListener("popstate",n,!1)})(),q}}));
\ No newline at end of file
diff --git a/package.json b/package.json
index 53e5ebb..0c0b225 100755
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
 	"name": "smooth-scroll",
-	"version": "15.2.1",
+	"version": "16.0.0",
 	"description": "Animate scrolling to anchor links",
 	"main": "./dist/smooth-scroll.polyfills.min.js",
 	"author": {
diff --git a/src/js/smooth-scroll/smooth-scroll.js b/src/js/smooth-scroll/smooth-scroll.js
index 29f05e9..99e7d0c 100755
--- a/src/js/smooth-scroll/smooth-scroll.js
+++ b/src/js/smooth-scroll/smooth-scroll.js
@@ -581,7 +581,7 @@
 		 * Initialize Smooth Scroll
 		 * @param {Object} options User settings
 		 */
-		smoothScroll.init = function (options) {
+		var init = function () {
 
 			// feature test
 			if (!supports()) throw 'Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.';
@@ -608,7 +608,7 @@
 		// Initialize plugin
 		//
 
-		smoothScroll.init(options);
+		init();
 
 
 		//

From 08c6d352bced7a8455fbed6bdea11b4300bb083b Mon Sep 17 00:00:00 2001
From: cferdinandi <chris@gomakethings.com>
Date: Thu, 7 Mar 2019 15:30:07 -0500
Subject: [PATCH 33/51] npm

---
 README.md | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/README.md b/README.md
index fce3c8a..a8df210 100755
--- a/README.md
+++ b/README.md
@@ -52,6 +52,14 @@ You can also use the [jsDelivr CDN](https://cdn.jsdelivr.net/gh/cferdinandi/smoo
 <script src="https://cdn.jsdelivr.net/gh/cferdinandi/smooth-scroll@14.0.0/dist/smooth-scroll.polyfills.min.js"></script>
 ```
 
+**NPM**
+
+You can also use NPM (or your favorite package manager).
+
+```bash
+npm install smooth-scroll
+```
+
 ### 2. Add the markup to your HTML.
 
 No special markup needed&mdash;just standard anchor links. Give the anchor location an ID just like you normally would.

From 77a199861fba9667669ce6bdc4e426094f4696aa Mon Sep 17 00:00:00 2001
From: cferdinandi <chris@gomakethings.com>
Date: Mon, 18 Mar 2019 14:45:04 -0400
Subject: [PATCH 34/51] v16.0.1 Added detection for shift + click

---
 README.md                             | 8 ++++++++
 dist/smooth-scroll.js                 | 6 +++---
 dist/smooth-scroll.min.js             | 4 ++--
 dist/smooth-scroll.polyfills.js       | 6 +++---
 dist/smooth-scroll.polyfills.min.js   | 4 ++--
 package.json                          | 2 +-
 src/js/smooth-scroll/smooth-scroll.js | 4 ++--
 7 files changed, 21 insertions(+), 13 deletions(-)

diff --git a/README.md b/README.md
index a8df210..592d769 100755
--- a/README.md
+++ b/README.md
@@ -345,6 +345,14 @@ Scroll duration now varies based on distance traveled. If you want to maintain t
 
 ## Known Issues
 
+### Reduce Motion Settings
+
+This isn't really an "issue" so-much as a question I get a lot.
+
+Smooth Scroll respects [the `Reduce Motion` setting](https://developer.mozilla.org/en-US/docs/Web/CSS/@media/prefers-reduced-motion) available in certain operating systems. In browsers that surface that setting, Smooth Scroll will not run and will revert to the default "jump to location" anchor link behavior.
+
+I've decided to respect user preferences of developer desires here. This is *not* a configurable setting.
+
 ### `<body>` styling
 
 If the `<body>` element has been assigned a height of `100%` or `overflow: hidden`, Smooth Scroll is unable to properly calculate page distances and will not scroll to the right location. The `<body>` element can have a fixed, non-percentage based height (ex. `500px`), or a height of `auto`, and an `overflow` of `visible`.
diff --git a/dist/smooth-scroll.js b/dist/smooth-scroll.js
index 58e48fb..7c54191 100755
--- a/dist/smooth-scroll.js
+++ b/dist/smooth-scroll.js
@@ -1,5 +1,5 @@
 /*!
- * smooth-scroll v16.0.0
+ * smooth-scroll v16.0.1
  * Animate scrolling to anchor links
  * (c) 2019 Chris Ferdinandi
  * MIT License
@@ -503,8 +503,8 @@
 			// Don't run if the user prefers reduced motion
 			if (reduceMotion(settings)) return;
 
-			// Don't run if right-click or command/control + click
-			if (event.button !== 0 || event.metaKey || event.ctrlKey) return;
+			// Don't run if right-click or command/control + click or shift + click
+			if (event.button !== 0 || event.metaKey || event.ctrlKey || event.shiftKey) return;
 
 			// Check if event.target has closest() method
 			// By @totegi - https://github.com/cferdinandi/smooth-scroll/pull/401/
diff --git a/dist/smooth-scroll.min.js b/dist/smooth-scroll.min.js
index a8b795e..fc6b62c 100755
--- a/dist/smooth-scroll.min.js
+++ b/dist/smooth-scroll.min.js
@@ -1,2 +1,2 @@
-/*! smooth-scroll v16.0.0 | (c) 2019 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
-!(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(C){"use strict";var L={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,speedAsDuration:!1,durationMax:null,durationMin:null,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},H=function(){var n={};return Array.prototype.forEach.call(arguments,(function(e){for(var t in e){if(!e.hasOwnProperty(t))return;n[t]=e[t]}})),n},r=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,a=-1,r="",i=n.charCodeAt(0);++a<o;){if(0===(t=n.charCodeAt(a)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");1<=t&&t<=31||127==t||0===a&&48<=t&&t<=57||1===a&&48<=t&&t<=57&&45===i?r+="\\"+t.toString(16)+" ":r+=128<=t||45===t||95===t||48<=t&&t<=57||65<=t&&t<=90||97<=t&&t<=122?n.charAt(a):"\\"+n.charAt(a)}return"#"+r},q=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},x=function(e){return e?(t=e,parseInt(C.getComputedStyle(t).height,10)+e.offsetTop):0;var t},Q=function(e,t,n,o){if(t.emitEvents&&"function"==typeof C.CustomEvent){var a=new CustomEvent(e,{bubbles:!0,detail:{anchor:n,toggle:o}});document.dispatchEvent(a)}};return function(o,e){var I,a,M,A,w={};w.cancelScroll=function(e){cancelAnimationFrame(A),A=null,e||Q("scrollCancel",I)},w.animateScroll=function(i,s,e){w.cancelScroll();var c=H(I||L,e||{}),u="[object Number]"===Object.prototype.toString.call(i),t=u||!i.tagName?null:i;if(u||t){var l=C.pageYOffset;c.header&&!M&&(M=document.querySelector(c.header));var n,o,a,d,r,f,m,h,p=x(M),g=u?i:(function(e,t,n,o){var a=0;if(e.offsetParent)for(;a+=e.offsetTop,e=e.offsetParent;);return a=Math.max(a-t-n,0),o&&(a=Math.min(a,q()-C.innerHeight)),a})(t,p,parseInt("function"==typeof c.offset?c.offset(i,s):c.offset,10),c.clip),y=g-l,S=q(),v=0,E=(n=y,a=(o=c).speedAsDuration?o.speed:Math.abs(n/1e3*o.speed),o.durationMax&&a>o.durationMax?o.durationMax:o.durationMin&&a<o.durationMin?o.durationMin:parseInt(a,10)),b=function(e,t){var n,o,a,r=C.pageYOffset;if(e==t||r==t||(l<t&&C.innerHeight+r)>=S)return w.cancelScroll(!0),o=t,a=u,0===(n=i)&&document.body.focus(),a||(n.focus(),document.activeElement!==n&&(n.setAttribute("tabindex","-1"),n.focus(),n.style.outline="none"),C.scrollTo(0,o)),Q("scrollStop",c,i,s),!(A=d=null)},O=function(e){var t,n,o;d||(d=e),v+=e-d,f=l+y*(n=r=1<(r=0===E?0:v/E)?1:r,"easeInQuad"===(t=c).easing&&(o=n*n),"easeOutQuad"===t.easing&&(o=n*(2-n)),"easeInOutQuad"===t.easing&&(o=n<.5?2*n*n:(4-2*n)*n-1),"easeInCubic"===t.easing&&(o=n*n*n),"easeOutCubic"===t.easing&&(o=--n*n*n+1),"easeInOutCubic"===t.easing&&(o=n<.5?4*n*n*n:(n-1)*(2*n-2)*(2*n-2)+1),"easeInQuart"===t.easing&&(o=n*n*n*n),"easeOutQuart"===t.easing&&(o=1- --n*n*n*n),"easeInOutQuart"===t.easing&&(o=n<.5?8*n*n*n*n:1-8*--n*n*n*n),"easeInQuint"===t.easing&&(o=n*n*n*n*n),"easeOutQuint"===t.easing&&(o=1+--n*n*n*n*n),"easeInOutQuint"===t.easing&&(o=n<.5?16*n*n*n*n*n:1+16*--n*n*n*n*n),t.customEasing&&(o=t.customEasing(n)),o||n),C.scrollTo(0,Math.floor(f)),b(f,g)||(A=C.requestAnimationFrame(O),d=e)};0===C.pageYOffset&&C.scrollTo(0,0),m=i,h=c,u||history.pushState&&h.updateURL&&history.pushState({smoothScroll:JSON.stringify(h),anchor:m.id},document.title,m===document.documentElement?"#top":"#"+m.id),Q("scrollStart",c,i,s),w.cancelScroll(!0),C.requestAnimationFrame(O)}};var t=function(e){if(!("matchMedia"in C&&C.matchMedia("(prefers-reduced-motion)").matches)&&0===e.button&&!e.metaKey&&!e.ctrlKey&&"closest"in e.target&&(a=e.target.closest(o))&&"a"===a.tagName.toLowerCase()&&!e.target.closest(I.ignore)&&a.hostname===C.location.hostname&&a.pathname===C.location.pathname&&/#/.test(a.href)){var t=r(a.hash),n=I.topOnEmptyHash&&"#"===t?document.documentElement:document.querySelector(t);(n=n||"#top"!==t?n:document.documentElement)&&(e.preventDefault(),(function(e){if(history.replaceState&&e.updateURL&&!history.state){var t=C.location.hash;t=t||"",history.replaceState({smoothScroll:JSON.stringify(e),anchor:t||C.pageYOffset},document.title,t||C.location.href)}})(I),w.animateScroll(n,a))}},n=function(e){if(null!==history.state&&history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(I)){var t=history.state.anchor;"string"==typeof t&&t&&!(t=document.querySelector(r(history.state.anchor)))||w.animateScroll(t,null,{updateURL:!1})}};w.destroy=function(){I&&(document.removeEventListener("click",t,!1),C.removeEventListener("popstate",n,!1),w.cancelScroll(),A=M=a=I=null)};return (function(){if(!("querySelector"in document&&"addEventListener"in C&&"requestAnimationFrame"in C&&"closest"in C.Element.prototype))throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";w.destroy(),I=H(L,e||{}),M=I.header?document.querySelector(I.header):null,document.addEventListener("click",t,!1),I.updateURL&&I.popstate&&C.addEventListener("popstate",n,!1)})(),w}}));
\ No newline at end of file
+/*! smooth-scroll v16.0.1 | (c) 2019 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
+!(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(C){"use strict";var L={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,speedAsDuration:!1,durationMax:null,durationMin:null,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},H=function(){var n={};return Array.prototype.forEach.call(arguments,(function(e){for(var t in e){if(!e.hasOwnProperty(t))return;n[t]=e[t]}})),n},r=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,a=-1,r="",i=n.charCodeAt(0);++a<o;){if(0===(t=n.charCodeAt(a)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");1<=t&&t<=31||127==t||0===a&&48<=t&&t<=57||1===a&&48<=t&&t<=57&&45===i?r+="\\"+t.toString(16)+" ":r+=128<=t||45===t||95===t||48<=t&&t<=57||65<=t&&t<=90||97<=t&&t<=122?n.charAt(a):"\\"+n.charAt(a)}return"#"+r},q=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},x=function(e){return e?(t=e,parseInt(C.getComputedStyle(t).height,10)+e.offsetTop):0;var t},Q=function(e,t,n,o){if(t.emitEvents&&"function"==typeof C.CustomEvent){var a=new CustomEvent(e,{bubbles:!0,detail:{anchor:n,toggle:o}});document.dispatchEvent(a)}};return function(o,e){var I,a,M,A,w={};w.cancelScroll=function(e){cancelAnimationFrame(A),A=null,e||Q("scrollCancel",I)},w.animateScroll=function(i,s,e){w.cancelScroll();var c=H(I||L,e||{}),u="[object Number]"===Object.prototype.toString.call(i),t=u||!i.tagName?null:i;if(u||t){var l=C.pageYOffset;c.header&&!M&&(M=document.querySelector(c.header));var n,o,a,d,r,f,m,h,p=x(M),g=u?i:(function(e,t,n,o){var 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t=r(a.hash),n=I.topOnEmptyHash&&"#"===t?document.documentElement:document.querySelector(t);(n=n||"#top"!==t?n:document.documentElement)&&(e.preventDefault(),(function(e){if(history.replaceState&&e.updateURL&&!history.state){var t=C.location.hash;t=t||"",history.replaceState({smoothScroll:JSON.stringify(e),anchor:t||C.pageYOffset},document.title,t||C.location.href)}})(I),w.animateScroll(n,a))}},n=function(e){if(null!==history.state&&history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(I)){var t=history.state.anchor;"string"==typeof t&&t&&!(t=document.querySelector(r(history.state.anchor)))||w.animateScroll(t,null,{updateURL:!1})}};w.destroy=function(){I&&(document.removeEventListener("click",t,!1),C.removeEventListener("popstate",n,!1),w.cancelScroll(),A=M=a=I=null)};return (function(){if(!("querySelector"in document&&"addEventListener"in C&&"requestAnimationFrame"in C&&"closest"in C.Element.prototype))throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";w.destroy(),I=H(L,e||{}),M=I.header?document.querySelector(I.header):null,document.addEventListener("click",t,!1),I.updateURL&&I.popstate&&C.addEventListener("popstate",n,!1)})(),w}}));
\ No newline at end of file
diff --git a/dist/smooth-scroll.polyfills.js b/dist/smooth-scroll.polyfills.js
index 3b8fe90..1997257 100755
--- a/dist/smooth-scroll.polyfills.js
+++ b/dist/smooth-scroll.polyfills.js
@@ -1,5 +1,5 @@
 /*!
- * smooth-scroll v16.0.0
+ * smooth-scroll v16.0.1
  * Animate scrolling to anchor links
  * (c) 2019 Chris Ferdinandi
  * MIT License
@@ -573,8 +573,8 @@ if (window.Element && !Element.prototype.closest) {
 			// Don't run if the user prefers reduced motion
 			if (reduceMotion(settings)) return;
 
-			// Don't run if right-click or command/control + click
-			if (event.button !== 0 || event.metaKey || event.ctrlKey) return;
+			// Don't run if right-click or command/control + click or shift + click
+			if (event.button !== 0 || event.metaKey || event.ctrlKey || event.shiftKey) return;
 
 			// Check if event.target has closest() method
 			// By @totegi - https://github.com/cferdinandi/smooth-scroll/pull/401/
diff --git a/dist/smooth-scroll.polyfills.min.js b/dist/smooth-scroll.polyfills.min.js
index c845789..f66f0e7 100755
--- a/dist/smooth-scroll.polyfills.min.js
+++ b/dist/smooth-scroll.polyfills.min.js
@@ -1,2 +1,2 @@
-/*! smooth-scroll v16.0.0 | (c) 2019 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
-window.Element&&!Element.prototype.closest&&(Element.prototype.closest=function(e){var t,n=(this.document||this.ownerDocument).querySelectorAll(e),o=this;do{for(t=n.length;0<=--t&&n.item(t)!==o;);}while(t<0&&(o=o.parentElement));return o}),(function(){if("function"==typeof window.CustomEvent)return;function e(e,t){t=t||{bubbles:!1,cancelable:!1,detail:void 0};var n=document.createEvent("CustomEvent");return n.initCustomEvent(e,t.bubbles,t.cancelable,t.detail),n}e.prototype=window.Event.prototype,window.CustomEvent=e})(),(function(){for(var r=0,e=["ms","moz","webkit","o"],t=0;t<e.length&&!window.requestAnimationFrame;++t)window.requestAnimationFrame=window[e[t]+"RequestAnimationFrame"],window.cancelAnimationFrame=window[e[t]+"CancelAnimationFrame"]||window[e[t]+"CancelRequestAnimationFrame"];window.requestAnimationFrame||(window.requestAnimationFrame=function(e,t){var n=(new Date).getTime(),o=Math.max(0,16-(n-r)),a=window.setTimeout((function(){e(n+o)}),o);return r=n+o,a}),window.cancelAnimationFrame||(window.cancelAnimationFrame=function(e){clearTimeout(e)})})(),(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(M){"use strict";var I={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,speedAsDuration:!1,durationMax:null,durationMin:null,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},F=function(){var n={};return Array.prototype.forEach.call(arguments,(function(e){for(var t in e){if(!e.hasOwnProperty(t))return;n[t]=e[t]}})),n},r=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,a=-1,r="",i=n.charCodeAt(0);++a<o;){if(0===(t=n.charCodeAt(a)))throw new InvalidCharacterError("Invalid character: the input contains 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t=r(a.hash),n=A.topOnEmptyHash&&"#"===t?document.documentElement:document.querySelector(t);(n=n||"#top"!==t?n:document.documentElement)&&(e.preventDefault(),(function(e){if(history.replaceState&&e.updateURL&&!history.state){var t=M.location.hash;t=t||"",history.replaceState({smoothScroll:JSON.stringify(e),anchor:t||M.pageYOffset},document.title,t||M.location.href)}})(A),q.animateScroll(n,a))}},n=function(e){if(null!==history.state&&history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(A)){var t=history.state.anchor;"string"==typeof t&&t&&!(t=document.querySelector(r(history.state.anchor)))||q.animateScroll(t,null,{updateURL:!1})}};q.destroy=function(){A&&(document.removeEventListener("click",t,!1),M.removeEventListener("popstate",n,!1),q.cancelScroll(),C=O=a=A=null)};return (function(){if(!("querySelector"in document&&"addEventListener"in M&&"requestAnimationFrame"in M&&"closest"in M.Element.prototype))throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";q.destroy(),A=F(I,e||{}),O=A.header?document.querySelector(A.header):null,document.addEventListener("click",t,!1),A.updateURL&&A.popstate&&M.addEventListener("popstate",n,!1)})(),q}}));
\ No newline at end of file
+/*! smooth-scroll v16.0.1 | (c) 2019 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
+window.Element&&!Element.prototype.closest&&(Element.prototype.closest=function(e){var t,n=(this.document||this.ownerDocument).querySelectorAll(e),o=this;do{for(t=n.length;0<=--t&&n.item(t)!==o;);}while(t<0&&(o=o.parentElement));return o}),(function(){if("function"==typeof window.CustomEvent)return;function e(e,t){t=t||{bubbles:!1,cancelable:!1,detail:void 0};var n=document.createEvent("CustomEvent");return n.initCustomEvent(e,t.bubbles,t.cancelable,t.detail),n}e.prototype=window.Event.prototype,window.CustomEvent=e})(),(function(){for(var i=0,e=["ms","moz","webkit","o"],t=0;t<e.length&&!window.requestAnimationFrame;++t)window.requestAnimationFrame=window[e[t]+"RequestAnimationFrame"],window.cancelAnimationFrame=window[e[t]+"CancelAnimationFrame"]||window[e[t]+"CancelRequestAnimationFrame"];window.requestAnimationFrame||(window.requestAnimationFrame=function(e,t){var n=(new Date).getTime(),o=Math.max(0,16-(n-i)),a=window.setTimeout((function(){e(n+o)}),o);return i=n+o,a}),window.cancelAnimationFrame||(window.cancelAnimationFrame=function(e){clearTimeout(e)})})(),(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(M){"use strict";var I={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,speedAsDuration:!1,durationMax:null,durationMin:null,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},F=function(){var n={};return Array.prototype.forEach.call(arguments,(function(e){for(var t in e){if(!e.hasOwnProperty(t))return;n[t]=e[t]}})),n},i=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,a=-1,i="",r=n.charCodeAt(0);++a<o;){if(0===(t=n.charCodeAt(a)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");1<=t&&t<=31||127==t||0===a&&48<=t&&t<=57||1===a&&48<=t&&t<=57&&45===r?i+="\\"+t.toString(16)+" ":i+=128<=t||45===t||95===t||48<=t&&t<=57||65<=t&&t<=90||97<=t&&t<=122?n.charAt(a):"\\"+n.charAt(a)}return"#"+i},L=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},x=function(e){return e?(t=e,parseInt(M.getComputedStyle(t).height,10)+e.offsetTop):0;var t},H=function(e,t,n,o){if(t.emitEvents&&"function"==typeof M.CustomEvent){var a=new CustomEvent(e,{bubbles:!0,detail:{anchor:n,toggle:o}});document.dispatchEvent(a)}};return function(o,e){var A,a,O,C,q={};q.cancelScroll=function(e){cancelAnimationFrame(C),C=null,e||H("scrollCancel",A)},q.animateScroll=function(r,c,e){q.cancelScroll();var s=F(A||I,e||{}),u="[object Number]"===Object.prototype.toString.call(r),t=u||!r.tagName?null:r;if(u||t){var l=M.pageYOffset;s.header&&!O&&(O=document.querySelector(s.header));var n,o,a,m,i,d,f,h,p=x(O),g=u?r:(function(e,t,n,o){var a=0;if(e.offsetParent)for(;a+=e.offsetTop,e=e.offsetParent;);return a=Math.max(a-t-n,0),o&&(a=Math.min(a,L()-M.innerHeight)),a})(t,p,parseInt("function"==typeof s.offset?s.offset(r,c):s.offset,10),s.clip),y=g-l,w=L(),v=0,S=(n=y,a=(o=s).speedAsDuration?o.speed:Math.abs(n/1e3*o.speed),o.durationMax&&a>o.durationMax?o.durationMax:o.durationMin&&a<o.durationMin?o.durationMin:parseInt(a,10)),E=function(e,t){var n,o,a,i=M.pageYOffset;if(e==t||i==t||(l<t&&M.innerHeight+i)>=w)return q.cancelScroll(!0),o=t,a=u,0===(n=r)&&document.body.focus(),a||(n.focus(),document.activeElement!==n&&(n.setAttribute("tabindex","-1"),n.focus(),n.style.outline="none"),M.scrollTo(0,o)),H("scrollStop",s,r,c),!(C=m=null)},b=function(e){var t,n,o;m||(m=e),v+=e-m,d=l+y*(n=i=1<(i=0===S?0:v/S)?1:i,"easeInQuad"===(t=s).easing&&(o=n*n),"easeOutQuad"===t.easing&&(o=n*(2-n)),"easeInOutQuad"===t.easing&&(o=n<.5?2*n*n:(4-2*n)*n-1),"easeInCubic"===t.easing&&(o=n*n*n),"easeOutCubic"===t.easing&&(o=--n*n*n+1),"easeInOutCubic"===t.easing&&(o=n<.5?4*n*n*n:(n-1)*(2*n-2)*(2*n-2)+1),"easeInQuart"===t.easing&&(o=n*n*n*n),"easeOutQuart"===t.easing&&(o=1- --n*n*n*n),"easeInOutQuart"===t.easing&&(o=n<.5?8*n*n*n*n:1-8*--n*n*n*n),"easeInQuint"===t.easing&&(o=n*n*n*n*n),"easeOutQuint"===t.easing&&(o=1+--n*n*n*n*n),"easeInOutQuint"===t.easing&&(o=n<.5?16*n*n*n*n*n:1+16*--n*n*n*n*n),t.customEasing&&(o=t.customEasing(n)),o||n),M.scrollTo(0,Math.floor(d)),E(d,g)||(C=M.requestAnimationFrame(b),m=e)};0===M.pageYOffset&&M.scrollTo(0,0),f=r,h=s,u||history.pushState&&h.updateURL&&history.pushState({smoothScroll:JSON.stringify(h),anchor:f.id},document.title,f===document.documentElement?"#top":"#"+f.id),H("scrollStart",s,r,c),q.cancelScroll(!0),M.requestAnimationFrame(b)}};var t=function(e){if(!("matchMedia"in M&&M.matchMedia("(prefers-reduced-motion)").matches)&&!(0!==e.button||e.metaKey||e.ctrlKey||e.shiftKey)&&"closest"in e.target&&(a=e.target.closest(o))&&"a"===a.tagName.toLowerCase()&&!e.target.closest(A.ignore)&&a.hostname===M.location.hostname&&a.pathname===M.location.pathname&&/#/.test(a.href)){var t=i(a.hash),n=A.topOnEmptyHash&&"#"===t?document.documentElement:document.querySelector(t);(n=n||"#top"!==t?n:document.documentElement)&&(e.preventDefault(),(function(e){if(history.replaceState&&e.updateURL&&!history.state){var t=M.location.hash;t=t||"",history.replaceState({smoothScroll:JSON.stringify(e),anchor:t||M.pageYOffset},document.title,t||M.location.href)}})(A),q.animateScroll(n,a))}},n=function(e){if(null!==history.state&&history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(A)){var t=history.state.anchor;"string"==typeof t&&t&&!(t=document.querySelector(i(history.state.anchor)))||q.animateScroll(t,null,{updateURL:!1})}};q.destroy=function(){A&&(document.removeEventListener("click",t,!1),M.removeEventListener("popstate",n,!1),q.cancelScroll(),C=O=a=A=null)};return (function(){if(!("querySelector"in document&&"addEventListener"in M&&"requestAnimationFrame"in M&&"closest"in M.Element.prototype))throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";q.destroy(),A=F(I,e||{}),O=A.header?document.querySelector(A.header):null,document.addEventListener("click",t,!1),A.updateURL&&A.popstate&&M.addEventListener("popstate",n,!1)})(),q}}));
\ No newline at end of file
diff --git a/package.json b/package.json
index 0c0b225..c9a164c 100755
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
 	"name": "smooth-scroll",
-	"version": "16.0.0",
+	"version": "16.0.1",
 	"description": "Animate scrolling to anchor links",
 	"main": "./dist/smooth-scroll.polyfills.min.js",
 	"author": {
diff --git a/src/js/smooth-scroll/smooth-scroll.js b/src/js/smooth-scroll/smooth-scroll.js
index 99e7d0c..2baff77 100755
--- a/src/js/smooth-scroll/smooth-scroll.js
+++ b/src/js/smooth-scroll/smooth-scroll.js
@@ -495,8 +495,8 @@
 			// Don't run if the user prefers reduced motion
 			if (reduceMotion(settings)) return;
 
-			// Don't run if right-click or command/control + click
-			if (event.button !== 0 || event.metaKey || event.ctrlKey) return;
+			// Don't run if right-click or command/control + click or shift + click
+			if (event.button !== 0 || event.metaKey || event.ctrlKey || event.shiftKey) return;
 
 			// Check if event.target has closest() method
 			// By @totegi - https://github.com/cferdinandi/smooth-scroll/pull/401/

From 3092aa01add5c95f630630cb74b653c0c222f3ec Mon Sep 17 00:00:00 2001
From: cferdinandi <chris@gomakethings.com>
Date: Mon, 18 Mar 2019 14:47:02 -0400
Subject: [PATCH 35/51] Updated readme

---
 README.md | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/README.md b/README.md
index 592d769..c3994aa 100755
--- a/README.md
+++ b/README.md
@@ -375,6 +375,8 @@ Smooth Scroll works in all modern browsers, and IE 9 and above.
 
 Smooth Scroll is built with modern JavaScript APIs, and uses progressive enhancement. If the JavaScript file fails to load, or if your site is viewed on older and less capable browsers, anchor links will jump the way they normally would.
 
+*__Note:__ Smooth Scroll will not run&mdash;even in supported browsers&mdash;if users have `Reduce Motion` endabled. [Learn more...](#reduce-motion-settings)*
+
 ### Polyfills
 
 Support back to IE9 requires polyfills for `closest()`, `requestAnimationFrame()`, and `CustomEvent()`. Without them, support starts with Edge.

From cd53e73b05609ab889ed93d959726f65e4951672 Mon Sep 17 00:00:00 2001
From: cferdinandi <chris@gomakethings.com>
Date: Mon, 18 Mar 2019 14:47:36 -0400
Subject: [PATCH 36/51] Updated readme

---
 README.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/README.md b/README.md
index c3994aa..6f42b0a 100755
--- a/README.md
+++ b/README.md
@@ -375,7 +375,7 @@ Smooth Scroll works in all modern browsers, and IE 9 and above.
 
 Smooth Scroll is built with modern JavaScript APIs, and uses progressive enhancement. If the JavaScript file fails to load, or if your site is viewed on older and less capable browsers, anchor links will jump the way they normally would.
 
-*__Note:__ Smooth Scroll will not run&mdash;even in supported browsers&mdash;if users have `Reduce Motion` endabled. [Learn more...](#reduce-motion-settings)*
+*__Note:__ Smooth Scroll will not run&mdash;even in supported browsers&mdash;if users have `Reduce Motion` enabled. [Learn more in the "Known Issues" section.](#reduce-motion-settings)*
 
 ### Polyfills
 

From 6abdee5be8f84eea62fd5a4dfcdd9bb81a1e7ce7 Mon Sep 17 00:00:00 2001
From: cferdinandi <chris@gomakethings.com>
Date: Mon, 18 Mar 2019 14:48:54 -0400
Subject: [PATCH 37/51] Updated verseion numbers in CDN

---
 README.md | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/README.md b/README.md
index 6f42b0a..faf9895 100755
--- a/README.md
+++ b/README.md
@@ -43,13 +43,13 @@ You can also use the [jsDelivr CDN](https://cdn.jsdelivr.net/gh/cferdinandi/smoo
 <script src="https://cdn.jsdelivr.net/gh/cferdinandi/smooth-scroll/dist/smooth-scroll.polyfills.min.js"></script>
 
 <!-- Get minor updates and patch fixes within a major version -->
-<script src="https://cdn.jsdelivr.net/gh/cferdinandi/smooth-scroll@14/dist/smooth-scroll.polyfills.min.js"></script>
+<script src="https://cdn.jsdelivr.net/gh/cferdinandi/smooth-scroll@15/dist/smooth-scroll.polyfills.min.js"></script>
 
 <!-- Get patch fixes within a minor version -->
-<script src="https://cdn.jsdelivr.net/gh/cferdinandi/smooth-scroll@14.0/dist/smooth-scroll.polyfills.min.js"></script>
+<script src="https://cdn.jsdelivr.net/gh/cferdinandi/smooth-scroll@15.0/dist/smooth-scroll.polyfills.min.js"></script>
 
 <!-- Get a specific version -->
-<script src="https://cdn.jsdelivr.net/gh/cferdinandi/smooth-scroll@14.0.0/dist/smooth-scroll.polyfills.min.js"></script>
+<script src="https://cdn.jsdelivr.net/gh/cferdinandi/smooth-scroll@15.0.0/dist/smooth-scroll.polyfills.min.js"></script>
 ```
 
 **NPM**

From 9119a58b940f8fb89c83b0b014ee9356f3a2c838 Mon Sep 17 00:00:00 2001
From: cferdinandi <chris@gomakethings.com>
Date: Mon, 18 Mar 2019 14:54:25 -0400
Subject: [PATCH 38/51] Cancel scroll if event was prevented

---
 dist/smooth-scroll.js                 | 6 +++++-
 dist/smooth-scroll.min.js             | 4 ++--
 dist/smooth-scroll.polyfills.js       | 6 +++++-
 dist/smooth-scroll.polyfills.min.js   | 4 ++--
 package.json                          | 2 +-
 src/js/smooth-scroll/smooth-scroll.js | 1 +
 6 files changed, 16 insertions(+), 7 deletions(-)

diff --git a/dist/smooth-scroll.js b/dist/smooth-scroll.js
index 7c54191..398e3c1 100755
--- a/dist/smooth-scroll.js
+++ b/dist/smooth-scroll.js
@@ -1,5 +1,5 @@
 /*!
- * smooth-scroll v16.0.1
+ * smooth-scroll v16.0.2
  * Animate scrolling to anchor links
  * (c) 2019 Chris Ferdinandi
  * MIT License
@@ -503,6 +503,10 @@
 			// Don't run if the user prefers reduced motion
 			if (reduceMotion(settings)) return;
 
+			// Don't run if event was canceled but still bubbled up
+			// By @mgreter - https://github.com/cferdinandi/smooth-scroll/pull/462/
+			if (event.defaultPrevented) return;
+
 			// Don't run if right-click or command/control + click or shift + click
 			if (event.button !== 0 || event.metaKey || event.ctrlKey || event.shiftKey) return;
 
diff --git a/dist/smooth-scroll.min.js b/dist/smooth-scroll.min.js
index fc6b62c..d6af3eb 100755
--- a/dist/smooth-scroll.min.js
+++ b/dist/smooth-scroll.min.js
@@ -1,2 +1,2 @@
-/*! smooth-scroll v16.0.1 | (c) 2019 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
-!(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(C){"use strict";var L={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,speedAsDuration:!1,durationMax:null,durationMin:null,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},H=function(){var n={};return Array.prototype.forEach.call(arguments,(function(e){for(var t in e){if(!e.hasOwnProperty(t))return;n[t]=e[t]}})),n},r=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,a=-1,r="",i=n.charCodeAt(0);++a<o;){if(0===(t=n.charCodeAt(a)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");1<=t&&t<=31||127==t||0===a&&48<=t&&t<=57||1===a&&48<=t&&t<=57&&45===i?r+="\\"+t.toString(16)+" ":r+=128<=t||45===t||95===t||48<=t&&t<=57||65<=t&&t<=90||97<=t&&t<=122?n.charAt(a):"\\"+n.charAt(a)}return"#"+r},q=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},x=function(e){return e?(t=e,parseInt(C.getComputedStyle(t).height,10)+e.offsetTop):0;var t},Q=function(e,t,n,o){if(t.emitEvents&&"function"==typeof C.CustomEvent){var a=new CustomEvent(e,{bubbles:!0,detail:{anchor:n,toggle:o}});document.dispatchEvent(a)}};return function(o,e){var I,a,M,A,w={};w.cancelScroll=function(e){cancelAnimationFrame(A),A=null,e||Q("scrollCancel",I)},w.animateScroll=function(i,s,e){w.cancelScroll();var c=H(I||L,e||{}),u="[object Number]"===Object.prototype.toString.call(i),t=u||!i.tagName?null:i;if(u||t){var l=C.pageYOffset;c.header&&!M&&(M=document.querySelector(c.header));var n,o,a,d,r,f,m,h,p=x(M),g=u?i:(function(e,t,n,o){var a=0;if(e.offsetParent)for(;a+=e.offsetTop,e=e.offsetParent;);return a=Math.max(a-t-n,0),o&&(a=Math.min(a,q()-C.innerHeight)),a})(t,p,parseInt("function"==typeof c.offset?c.offset(i,s):c.offset,10),c.clip),y=g-l,S=q(),v=0,E=(n=y,a=(o=c).speedAsDuration?o.speed:Math.abs(n/1e3*o.speed),o.durationMax&&a>o.durationMax?o.durationMax:o.durationMin&&a<o.durationMin?o.durationMin:parseInt(a,10)),b=function(e,t){var n,o,a,r=C.pageYOffset;if(e==t||r==t||(l<t&&C.innerHeight+r)>=S)return w.cancelScroll(!0),o=t,a=u,0===(n=i)&&document.body.focus(),a||(n.focus(),document.activeElement!==n&&(n.setAttribute("tabindex","-1"),n.focus(),n.style.outline="none"),C.scrollTo(0,o)),Q("scrollStop",c,i,s),!(A=d=null)},O=function(e){var t,n,o;d||(d=e),v+=e-d,f=l+y*(n=r=1<(r=0===E?0:v/E)?1:r,"easeInQuad"===(t=c).easing&&(o=n*n),"easeOutQuad"===t.easing&&(o=n*(2-n)),"easeInOutQuad"===t.easing&&(o=n<.5?2*n*n:(4-2*n)*n-1),"easeInCubic"===t.easing&&(o=n*n*n),"easeOutCubic"===t.easing&&(o=--n*n*n+1),"easeInOutCubic"===t.easing&&(o=n<.5?4*n*n*n:(n-1)*(2*n-2)*(2*n-2)+1),"easeInQuart"===t.easing&&(o=n*n*n*n),"easeOutQuart"===t.easing&&(o=1- --n*n*n*n),"easeInOutQuart"===t.easing&&(o=n<.5?8*n*n*n*n:1-8*--n*n*n*n),"easeInQuint"===t.easing&&(o=n*n*n*n*n),"easeOutQuint"===t.easing&&(o=1+--n*n*n*n*n),"easeInOutQuint"===t.easing&&(o=n<.5?16*n*n*n*n*n:1+16*--n*n*n*n*n),t.customEasing&&(o=t.customEasing(n)),o||n),C.scrollTo(0,Math.floor(f)),b(f,g)||(A=C.requestAnimationFrame(O),d=e)};0===C.pageYOffset&&C.scrollTo(0,0),m=i,h=c,u||history.pushState&&h.updateURL&&history.pushState({smoothScroll:JSON.stringify(h),anchor:m.id},document.title,m===document.documentElement?"#top":"#"+m.id),Q("scrollStart",c,i,s),w.cancelScroll(!0),C.requestAnimationFrame(O)}};var t=function(e){if(!("matchMedia"in C&&C.matchMedia("(prefers-reduced-motion)").matches)&&!(0!==e.button||e.metaKey||e.ctrlKey||e.shiftKey)&&"closest"in e.target&&(a=e.target.closest(o))&&"a"===a.tagName.toLowerCase()&&!e.target.closest(I.ignore)&&a.hostname===C.location.hostname&&a.pathname===C.location.pathname&&/#/.test(a.href)){var t=r(a.hash),n=I.topOnEmptyHash&&"#"===t?document.documentElement:document.querySelector(t);(n=n||"#top"!==t?n:document.documentElement)&&(e.preventDefault(),(function(e){if(history.replaceState&&e.updateURL&&!history.state){var t=C.location.hash;t=t||"",history.replaceState({smoothScroll:JSON.stringify(e),anchor:t||C.pageYOffset},document.title,t||C.location.href)}})(I),w.animateScroll(n,a))}},n=function(e){if(null!==history.state&&history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(I)){var t=history.state.anchor;"string"==typeof t&&t&&!(t=document.querySelector(r(history.state.anchor)))||w.animateScroll(t,null,{updateURL:!1})}};w.destroy=function(){I&&(document.removeEventListener("click",t,!1),C.removeEventListener("popstate",n,!1),w.cancelScroll(),A=M=a=I=null)};return (function(){if(!("querySelector"in document&&"addEventListener"in C&&"requestAnimationFrame"in C&&"closest"in C.Element.prototype))throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";w.destroy(),I=H(L,e||{}),M=I.header?document.querySelector(I.header):null,document.addEventListener("click",t,!1),I.updateURL&&I.popstate&&C.addEventListener("popstate",n,!1)})(),w}}));
\ No newline at end of file
+/*! smooth-scroll v16.0.2 | (c) 2019 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
+!(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(C){"use strict";var L={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,speedAsDuration:!1,durationMax:null,durationMin:null,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},H=function(){var n={};return Array.prototype.forEach.call(arguments,(function(e){for(var t in e){if(!e.hasOwnProperty(t))return;n[t]=e[t]}})),n},r=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,a=-1,r="",i=n.charCodeAt(0);++a<o;){if(0===(t=n.charCodeAt(a)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");1<=t&&t<=31||127==t||0===a&&48<=t&&t<=57||1===a&&48<=t&&t<=57&&45===i?r+="\\"+t.toString(16)+" ":r+=128<=t||45===t||95===t||48<=t&&t<=57||65<=t&&t<=90||97<=t&&t<=122?n.charAt(a):"\\"+n.charAt(a)}return"#"+r},q=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},x=function(e){return e?(t=e,parseInt(C.getComputedStyle(t).height,10)+e.offsetTop):0;var t},Q=function(e,t,n,o){if(t.emitEvents&&"function"==typeof C.CustomEvent){var a=new CustomEvent(e,{bubbles:!0,detail:{anchor:n,toggle:o}});document.dispatchEvent(a)}};return function(o,e){var I,a,M,A,w={};w.cancelScroll=function(e){cancelAnimationFrame(A),A=null,e||Q("scrollCancel",I)},w.animateScroll=function(i,s,e){w.cancelScroll();var c=H(I||L,e||{}),u="[object Number]"===Object.prototype.toString.call(i),t=u||!i.tagName?null:i;if(u||t){var l=C.pageYOffset;c.header&&!M&&(M=document.querySelector(c.header));var n,o,a,d,r,f,m,h,p=x(M),g=u?i:(function(e,t,n,o){var a=0;if(e.offsetParent)for(;a+=e.offsetTop,e=e.offsetParent;);return a=Math.max(a-t-n,0),o&&(a=Math.min(a,q()-C.innerHeight)),a})(t,p,parseInt("function"==typeof c.offset?c.offset(i,s):c.offset,10),c.clip),y=g-l,v=q(),S=0,E=(n=y,a=(o=c).speedAsDuration?o.speed:Math.abs(n/1e3*o.speed),o.durationMax&&a>o.durationMax?o.durationMax:o.durationMin&&a<o.durationMin?o.durationMin:parseInt(a,10)),b=function(e,t){var n,o,a,r=C.pageYOffset;if(e==t||r==t||(l<t&&C.innerHeight+r)>=v)return w.cancelScroll(!0),o=t,a=u,0===(n=i)&&document.body.focus(),a||(n.focus(),document.activeElement!==n&&(n.setAttribute("tabindex","-1"),n.focus(),n.style.outline="none"),C.scrollTo(0,o)),Q("scrollStop",c,i,s),!(A=d=null)},O=function(e){var t,n,o;d||(d=e),S+=e-d,f=l+y*(n=r=1<(r=0===E?0:S/E)?1:r,"easeInQuad"===(t=c).easing&&(o=n*n),"easeOutQuad"===t.easing&&(o=n*(2-n)),"easeInOutQuad"===t.easing&&(o=n<.5?2*n*n:(4-2*n)*n-1),"easeInCubic"===t.easing&&(o=n*n*n),"easeOutCubic"===t.easing&&(o=--n*n*n+1),"easeInOutCubic"===t.easing&&(o=n<.5?4*n*n*n:(n-1)*(2*n-2)*(2*n-2)+1),"easeInQuart"===t.easing&&(o=n*n*n*n),"easeOutQuart"===t.easing&&(o=1- --n*n*n*n),"easeInOutQuart"===t.easing&&(o=n<.5?8*n*n*n*n:1-8*--n*n*n*n),"easeInQuint"===t.easing&&(o=n*n*n*n*n),"easeOutQuint"===t.easing&&(o=1+--n*n*n*n*n),"easeInOutQuint"===t.easing&&(o=n<.5?16*n*n*n*n*n:1+16*--n*n*n*n*n),t.customEasing&&(o=t.customEasing(n)),o||n),C.scrollTo(0,Math.floor(f)),b(f,g)||(A=C.requestAnimationFrame(O),d=e)};0===C.pageYOffset&&C.scrollTo(0,0),m=i,h=c,u||history.pushState&&h.updateURL&&history.pushState({smoothScroll:JSON.stringify(h),anchor:m.id},document.title,m===document.documentElement?"#top":"#"+m.id),Q("scrollStart",c,i,s),w.cancelScroll(!0),C.requestAnimationFrame(O)}};var t=function(e){if(!("matchMedia"in C&&C.matchMedia("(prefers-reduced-motion)").matches)&&!e.defaultPrevented&&!(0!==e.button||e.metaKey||e.ctrlKey||e.shiftKey)&&"closest"in e.target&&(a=e.target.closest(o))&&"a"===a.tagName.toLowerCase()&&!e.target.closest(I.ignore)&&a.hostname===C.location.hostname&&a.pathname===C.location.pathname&&/#/.test(a.href)){var t=r(a.hash),n=I.topOnEmptyHash&&"#"===t?document.documentElement:document.querySelector(t);(n=n||"#top"!==t?n:document.documentElement)&&(e.preventDefault(),(function(e){if(history.replaceState&&e.updateURL&&!history.state){var t=C.location.hash;t=t||"",history.replaceState({smoothScroll:JSON.stringify(e),anchor:t||C.pageYOffset},document.title,t||C.location.href)}})(I),w.animateScroll(n,a))}},n=function(e){if(null!==history.state&&history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(I)){var t=history.state.anchor;"string"==typeof t&&t&&!(t=document.querySelector(r(history.state.anchor)))||w.animateScroll(t,null,{updateURL:!1})}};w.destroy=function(){I&&(document.removeEventListener("click",t,!1),C.removeEventListener("popstate",n,!1),w.cancelScroll(),A=M=a=I=null)};return (function(){if(!("querySelector"in document&&"addEventListener"in C&&"requestAnimationFrame"in C&&"closest"in C.Element.prototype))throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";w.destroy(),I=H(L,e||{}),M=I.header?document.querySelector(I.header):null,document.addEventListener("click",t,!1),I.updateURL&&I.popstate&&C.addEventListener("popstate",n,!1)})(),w}}));
\ No newline at end of file
diff --git a/dist/smooth-scroll.polyfills.js b/dist/smooth-scroll.polyfills.js
index 1997257..1305faa 100755
--- a/dist/smooth-scroll.polyfills.js
+++ b/dist/smooth-scroll.polyfills.js
@@ -1,5 +1,5 @@
 /*!
- * smooth-scroll v16.0.1
+ * smooth-scroll v16.0.2
  * Animate scrolling to anchor links
  * (c) 2019 Chris Ferdinandi
  * MIT License
@@ -573,6 +573,10 @@ if (window.Element && !Element.prototype.closest) {
 			// Don't run if the user prefers reduced motion
 			if (reduceMotion(settings)) return;
 
+			// Don't run if event was canceled but still bubbled up
+			// By @mgreter - https://github.com/cferdinandi/smooth-scroll/pull/462/
+			if (event.defaultPrevented) return;
+
 			// Don't run if right-click or command/control + click or shift + click
 			if (event.button !== 0 || event.metaKey || event.ctrlKey || event.shiftKey) return;
 
diff --git a/dist/smooth-scroll.polyfills.min.js b/dist/smooth-scroll.polyfills.min.js
index f66f0e7..6b1f7b7 100755
--- a/dist/smooth-scroll.polyfills.min.js
+++ b/dist/smooth-scroll.polyfills.min.js
@@ -1,2 +1,2 @@
-/*! smooth-scroll v16.0.1 | (c) 2019 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
-window.Element&&!Element.prototype.closest&&(Element.prototype.closest=function(e){var t,n=(this.document||this.ownerDocument).querySelectorAll(e),o=this;do{for(t=n.length;0<=--t&&n.item(t)!==o;);}while(t<0&&(o=o.parentElement));return o}),(function(){if("function"==typeof window.CustomEvent)return;function e(e,t){t=t||{bubbles:!1,cancelable:!1,detail:void 0};var n=document.createEvent("CustomEvent");return n.initCustomEvent(e,t.bubbles,t.cancelable,t.detail),n}e.prototype=window.Event.prototype,window.CustomEvent=e})(),(function(){for(var i=0,e=["ms","moz","webkit","o"],t=0;t<e.length&&!window.requestAnimationFrame;++t)window.requestAnimationFrame=window[e[t]+"RequestAnimationFrame"],window.cancelAnimationFrame=window[e[t]+"CancelAnimationFrame"]||window[e[t]+"CancelRequestAnimationFrame"];window.requestAnimationFrame||(window.requestAnimationFrame=function(e,t){var n=(new Date).getTime(),o=Math.max(0,16-(n-i)),a=window.setTimeout((function(){e(n+o)}),o);return i=n+o,a}),window.cancelAnimationFrame||(window.cancelAnimationFrame=function(e){clearTimeout(e)})})(),(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(M){"use strict";var I={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,speedAsDuration:!1,durationMax:null,durationMin:null,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},F=function(){var n={};return Array.prototype.forEach.call(arguments,(function(e){for(var t in e){if(!e.hasOwnProperty(t))return;n[t]=e[t]}})),n},i=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,a=-1,i="",r=n.charCodeAt(0);++a<o;){if(0===(t=n.charCodeAt(a)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");1<=t&&t<=31||127==t||0===a&&48<=t&&t<=57||1===a&&48<=t&&t<=57&&45===r?i+="\\"+t.toString(16)+" ":i+=128<=t||45===t||95===t||48<=t&&t<=57||65<=t&&t<=90||97<=t&&t<=122?n.charAt(a):"\\"+n.charAt(a)}return"#"+i},L=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},x=function(e){return e?(t=e,parseInt(M.getComputedStyle(t).height,10)+e.offsetTop):0;var t},H=function(e,t,n,o){if(t.emitEvents&&"function"==typeof M.CustomEvent){var a=new CustomEvent(e,{bubbles:!0,detail:{anchor:n,toggle:o}});document.dispatchEvent(a)}};return function(o,e){var A,a,O,C,q={};q.cancelScroll=function(e){cancelAnimationFrame(C),C=null,e||H("scrollCancel",A)},q.animateScroll=function(r,c,e){q.cancelScroll();var s=F(A||I,e||{}),u="[object Number]"===Object.prototype.toString.call(r),t=u||!r.tagName?null:r;if(u||t){var l=M.pageYOffset;s.header&&!O&&(O=document.querySelector(s.header));var n,o,a,m,i,d,f,h,p=x(O),g=u?r:(function(e,t,n,o){var a=0;if(e.offsetParent)for(;a+=e.offsetTop,e=e.offsetParent;);return a=Math.max(a-t-n,0),o&&(a=Math.min(a,L()-M.innerHeight)),a})(t,p,parseInt("function"==typeof s.offset?s.offset(r,c):s.offset,10),s.clip),y=g-l,w=L(),v=0,S=(n=y,a=(o=s).speedAsDuration?o.speed:Math.abs(n/1e3*o.speed),o.durationMax&&a>o.durationMax?o.durationMax:o.durationMin&&a<o.durationMin?o.durationMin:parseInt(a,10)),E=function(e,t){var n,o,a,i=M.pageYOffset;if(e==t||i==t||(l<t&&M.innerHeight+i)>=w)return q.cancelScroll(!0),o=t,a=u,0===(n=r)&&document.body.focus(),a||(n.focus(),document.activeElement!==n&&(n.setAttribute("tabindex","-1"),n.focus(),n.style.outline="none"),M.scrollTo(0,o)),H("scrollStop",s,r,c),!(C=m=null)},b=function(e){var t,n,o;m||(m=e),v+=e-m,d=l+y*(n=i=1<(i=0===S?0:v/S)?1:i,"easeInQuad"===(t=s).easing&&(o=n*n),"easeOutQuad"===t.easing&&(o=n*(2-n)),"easeInOutQuad"===t.easing&&(o=n<.5?2*n*n:(4-2*n)*n-1),"easeInCubic"===t.easing&&(o=n*n*n),"easeOutCubic"===t.easing&&(o=--n*n*n+1),"easeInOutCubic"===t.easing&&(o=n<.5?4*n*n*n:(n-1)*(2*n-2)*(2*n-2)+1),"easeInQuart"===t.easing&&(o=n*n*n*n),"easeOutQuart"===t.easing&&(o=1- --n*n*n*n),"easeInOutQuart"===t.easing&&(o=n<.5?8*n*n*n*n:1-8*--n*n*n*n),"easeInQuint"===t.easing&&(o=n*n*n*n*n),"easeOutQuint"===t.easing&&(o=1+--n*n*n*n*n),"easeInOutQuint"===t.easing&&(o=n<.5?16*n*n*n*n*n:1+16*--n*n*n*n*n),t.customEasing&&(o=t.customEasing(n)),o||n),M.scrollTo(0,Math.floor(d)),E(d,g)||(C=M.requestAnimationFrame(b),m=e)};0===M.pageYOffset&&M.scrollTo(0,0),f=r,h=s,u||history.pushState&&h.updateURL&&history.pushState({smoothScroll:JSON.stringify(h),anchor:f.id},document.title,f===document.documentElement?"#top":"#"+f.id),H("scrollStart",s,r,c),q.cancelScroll(!0),M.requestAnimationFrame(b)}};var t=function(e){if(!("matchMedia"in M&&M.matchMedia("(prefers-reduced-motion)").matches)&&!(0!==e.button||e.metaKey||e.ctrlKey||e.shiftKey)&&"closest"in e.target&&(a=e.target.closest(o))&&"a"===a.tagName.toLowerCase()&&!e.target.closest(A.ignore)&&a.hostname===M.location.hostname&&a.pathname===M.location.pathname&&/#/.test(a.href)){var t=i(a.hash),n=A.topOnEmptyHash&&"#"===t?document.documentElement:document.querySelector(t);(n=n||"#top"!==t?n:document.documentElement)&&(e.preventDefault(),(function(e){if(history.replaceState&&e.updateURL&&!history.state){var t=M.location.hash;t=t||"",history.replaceState({smoothScroll:JSON.stringify(e),anchor:t||M.pageYOffset},document.title,t||M.location.href)}})(A),q.animateScroll(n,a))}},n=function(e){if(null!==history.state&&history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(A)){var t=history.state.anchor;"string"==typeof t&&t&&!(t=document.querySelector(i(history.state.anchor)))||q.animateScroll(t,null,{updateURL:!1})}};q.destroy=function(){A&&(document.removeEventListener("click",t,!1),M.removeEventListener("popstate",n,!1),q.cancelScroll(),C=O=a=A=null)};return (function(){if(!("querySelector"in document&&"addEventListener"in M&&"requestAnimationFrame"in M&&"closest"in M.Element.prototype))throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";q.destroy(),A=F(I,e||{}),O=A.header?document.querySelector(A.header):null,document.addEventListener("click",t,!1),A.updateURL&&A.popstate&&M.addEventListener("popstate",n,!1)})(),q}}));
\ No newline at end of file
+/*! smooth-scroll v16.0.2 | (c) 2019 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
+window.Element&&!Element.prototype.closest&&(Element.prototype.closest=function(e){var t,n=(this.document||this.ownerDocument).querySelectorAll(e),o=this;do{for(t=n.length;0<=--t&&n.item(t)!==o;);}while(t<0&&(o=o.parentElement));return o}),(function(){if("function"==typeof window.CustomEvent)return;function e(e,t){t=t||{bubbles:!1,cancelable:!1,detail:void 0};var n=document.createEvent("CustomEvent");return n.initCustomEvent(e,t.bubbles,t.cancelable,t.detail),n}e.prototype=window.Event.prototype,window.CustomEvent=e})(),(function(){for(var r=0,e=["ms","moz","webkit","o"],t=0;t<e.length&&!window.requestAnimationFrame;++t)window.requestAnimationFrame=window[e[t]+"RequestAnimationFrame"],window.cancelAnimationFrame=window[e[t]+"CancelAnimationFrame"]||window[e[t]+"CancelRequestAnimationFrame"];window.requestAnimationFrame||(window.requestAnimationFrame=function(e,t){var n=(new Date).getTime(),o=Math.max(0,16-(n-r)),a=window.setTimeout((function(){e(n+o)}),o);return r=n+o,a}),window.cancelAnimationFrame||(window.cancelAnimationFrame=function(e){clearTimeout(e)})})(),(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(M){"use strict";var I={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,speedAsDuration:!1,durationMax:null,durationMin:null,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},F=function(){var n={};return Array.prototype.forEach.call(arguments,(function(e){for(var t in e){if(!e.hasOwnProperty(t))return;n[t]=e[t]}})),n},r=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,a=-1,r="",i=n.charCodeAt(0);++a<o;){if(0===(t=n.charCodeAt(a)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");1<=t&&t<=31||127==t||0===a&&48<=t&&t<=57||1===a&&48<=t&&t<=57&&45===i?r+="\\"+t.toString(16)+" ":r+=128<=t||45===t||95===t||48<=t&&t<=57||65<=t&&t<=90||97<=t&&t<=122?n.charAt(a):"\\"+n.charAt(a)}return"#"+r},L=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},x=function(e){return e?(t=e,parseInt(M.getComputedStyle(t).height,10)+e.offsetTop):0;var t},H=function(e,t,n,o){if(t.emitEvents&&"function"==typeof M.CustomEvent){var a=new CustomEvent(e,{bubbles:!0,detail:{anchor:n,toggle:o}});document.dispatchEvent(a)}};return function(o,e){var A,a,O,C,q={};q.cancelScroll=function(e){cancelAnimationFrame(C),C=null,e||H("scrollCancel",A)},q.animateScroll=function(i,c,e){q.cancelScroll();var s=F(A||I,e||{}),u="[object Number]"===Object.prototype.toString.call(i),t=u||!i.tagName?null:i;if(u||t){var l=M.pageYOffset;s.header&&!O&&(O=document.querySelector(s.header));var n,o,a,m,r,d,f,h,p=x(O),g=u?i:(function(e,t,n,o){var a=0;if(e.offsetParent)for(;a+=e.offsetTop,e=e.offsetParent;);return a=Math.max(a-t-n,0),o&&(a=Math.min(a,L()-M.innerHeight)),a})(t,p,parseInt("function"==typeof s.offset?s.offset(i,c):s.offset,10),s.clip),y=g-l,v=L(),w=0,S=(n=y,a=(o=s).speedAsDuration?o.speed:Math.abs(n/1e3*o.speed),o.durationMax&&a>o.durationMax?o.durationMax:o.durationMin&&a<o.durationMin?o.durationMin:parseInt(a,10)),E=function(e,t){var n,o,a,r=M.pageYOffset;if(e==t||r==t||(l<t&&M.innerHeight+r)>=v)return q.cancelScroll(!0),o=t,a=u,0===(n=i)&&document.body.focus(),a||(n.focus(),document.activeElement!==n&&(n.setAttribute("tabindex","-1"),n.focus(),n.style.outline="none"),M.scrollTo(0,o)),H("scrollStop",s,i,c),!(C=m=null)},b=function(e){var t,n,o;m||(m=e),w+=e-m,d=l+y*(n=r=1<(r=0===S?0:w/S)?1:r,"easeInQuad"===(t=s).easing&&(o=n*n),"easeOutQuad"===t.easing&&(o=n*(2-n)),"easeInOutQuad"===t.easing&&(o=n<.5?2*n*n:(4-2*n)*n-1),"easeInCubic"===t.easing&&(o=n*n*n),"easeOutCubic"===t.easing&&(o=--n*n*n+1),"easeInOutCubic"===t.easing&&(o=n<.5?4*n*n*n:(n-1)*(2*n-2)*(2*n-2)+1),"easeInQuart"===t.easing&&(o=n*n*n*n),"easeOutQuart"===t.easing&&(o=1- --n*n*n*n),"easeInOutQuart"===t.easing&&(o=n<.5?8*n*n*n*n:1-8*--n*n*n*n),"easeInQuint"===t.easing&&(o=n*n*n*n*n),"easeOutQuint"===t.easing&&(o=1+--n*n*n*n*n),"easeInOutQuint"===t.easing&&(o=n<.5?16*n*n*n*n*n:1+16*--n*n*n*n*n),t.customEasing&&(o=t.customEasing(n)),o||n),M.scrollTo(0,Math.floor(d)),E(d,g)||(C=M.requestAnimationFrame(b),m=e)};0===M.pageYOffset&&M.scrollTo(0,0),f=i,h=s,u||history.pushState&&h.updateURL&&history.pushState({smoothScroll:JSON.stringify(h),anchor:f.id},document.title,f===document.documentElement?"#top":"#"+f.id),H("scrollStart",s,i,c),q.cancelScroll(!0),M.requestAnimationFrame(b)}};var t=function(e){if(!("matchMedia"in M&&M.matchMedia("(prefers-reduced-motion)").matches)&&!e.defaultPrevented&&!(0!==e.button||e.metaKey||e.ctrlKey||e.shiftKey)&&"closest"in e.target&&(a=e.target.closest(o))&&"a"===a.tagName.toLowerCase()&&!e.target.closest(A.ignore)&&a.hostname===M.location.hostname&&a.pathname===M.location.pathname&&/#/.test(a.href)){var t=r(a.hash),n=A.topOnEmptyHash&&"#"===t?document.documentElement:document.querySelector(t);(n=n||"#top"!==t?n:document.documentElement)&&(e.preventDefault(),(function(e){if(history.replaceState&&e.updateURL&&!history.state){var t=M.location.hash;t=t||"",history.replaceState({smoothScroll:JSON.stringify(e),anchor:t||M.pageYOffset},document.title,t||M.location.href)}})(A),q.animateScroll(n,a))}},n=function(e){if(null!==history.state&&history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(A)){var t=history.state.anchor;"string"==typeof t&&t&&!(t=document.querySelector(r(history.state.anchor)))||q.animateScroll(t,null,{updateURL:!1})}};q.destroy=function(){A&&(document.removeEventListener("click",t,!1),M.removeEventListener("popstate",n,!1),q.cancelScroll(),C=O=a=A=null)};return (function(){if(!("querySelector"in document&&"addEventListener"in M&&"requestAnimationFrame"in M&&"closest"in M.Element.prototype))throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";q.destroy(),A=F(I,e||{}),O=A.header?document.querySelector(A.header):null,document.addEventListener("click",t,!1),A.updateURL&&A.popstate&&M.addEventListener("popstate",n,!1)})(),q}}));
\ No newline at end of file
diff --git a/package.json b/package.json
index c9a164c..fa5cff4 100755
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
 	"name": "smooth-scroll",
-	"version": "16.0.1",
+	"version": "16.0.2",
 	"description": "Animate scrolling to anchor links",
 	"main": "./dist/smooth-scroll.polyfills.min.js",
 	"author": {
diff --git a/src/js/smooth-scroll/smooth-scroll.js b/src/js/smooth-scroll/smooth-scroll.js
index 8076742..d2acb0d 100755
--- a/src/js/smooth-scroll/smooth-scroll.js
+++ b/src/js/smooth-scroll/smooth-scroll.js
@@ -496,6 +496,7 @@
 			if (reduceMotion(settings)) return;
 
 			// Don't run if event was canceled but still bubbled up
+			// By @mgreter - https://github.com/cferdinandi/smooth-scroll/pull/462/
 			if (event.defaultPrevented) return;
 
 			// Don't run if right-click or command/control + click or shift + click

From 3157656c4c8ccbc591c220a61871ea70de207ec2 Mon Sep 17 00:00:00 2001
From: cferdinandi <chris@gomakethings.com>
Date: Wed, 20 Mar 2019 21:30:52 -0400
Subject: [PATCH 39/51] Fixed error when disabling scroll to top

---
 dist/smooth-scroll.js                 | 10 ++++-
 dist/smooth-scroll.min.js             |  4 +-
 dist/smooth-scroll.polyfills.js       | 10 ++++-
 dist/smooth-scroll.polyfills.min.js   |  4 +-
 jump-to-top.html                      | 60 +++++++++++++++++++++++++++
 package.json                          |  2 +-
 src/copy/jump-to-top.html             | 60 +++++++++++++++++++++++++++
 src/js/smooth-scroll/smooth-scroll.js |  8 +++-
 8 files changed, 148 insertions(+), 10 deletions(-)
 create mode 100644 jump-to-top.html
 create mode 100644 src/copy/jump-to-top.html

diff --git a/dist/smooth-scroll.js b/dist/smooth-scroll.js
index 398e3c1..84663c9 100755
--- a/dist/smooth-scroll.js
+++ b/dist/smooth-scroll.js
@@ -1,5 +1,5 @@
 /*!
- * smooth-scroll v16.0.2
+ * smooth-scroll v16.0.3
  * Animate scrolling to anchor links
  * (c) 2019 Chris Ferdinandi
  * MIT License
@@ -525,7 +525,13 @@
 			var hash = escapeCharacters(toggle.hash);
 
 			// Get the anchored element
-			var anchor = settings.topOnEmptyHash && hash === '#' ? document.documentElement : document.querySelector(hash);
+			var anchor;
+			if (hash === '#') {
+				if (!settings.topOnEmptyHash) return;
+				anchor = document.documentElement;
+			} else {
+				anchor = document.querySelector(hash);
+			}
 			anchor = !anchor && hash === '#top' ? document.documentElement : anchor;
 
 			// If anchored element exists, scroll to it
diff --git a/dist/smooth-scroll.min.js b/dist/smooth-scroll.min.js
index d6af3eb..5afd687 100755
--- a/dist/smooth-scroll.min.js
+++ b/dist/smooth-scroll.min.js
@@ -1,2 +1,2 @@
-/*! smooth-scroll v16.0.2 | (c) 2019 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
-!(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(C){"use strict";var L={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,speedAsDuration:!1,durationMax:null,durationMin:null,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},H=function(){var n={};return Array.prototype.forEach.call(arguments,(function(e){for(var t in e){if(!e.hasOwnProperty(t))return;n[t]=e[t]}})),n},r=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,a=-1,r="",i=n.charCodeAt(0);++a<o;){if(0===(t=n.charCodeAt(a)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");1<=t&&t<=31||127==t||0===a&&48<=t&&t<=57||1===a&&48<=t&&t<=57&&45===i?r+="\\"+t.toString(16)+" ":r+=128<=t||45===t||95===t||48<=t&&t<=57||65<=t&&t<=90||97<=t&&t<=122?n.charAt(a):"\\"+n.charAt(a)}return"#"+r},q=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},x=function(e){return e?(t=e,parseInt(C.getComputedStyle(t).height,10)+e.offsetTop):0;var t},Q=function(e,t,n,o){if(t.emitEvents&&"function"==typeof C.CustomEvent){var a=new CustomEvent(e,{bubbles:!0,detail:{anchor:n,toggle:o}});document.dispatchEvent(a)}};return function(o,e){var I,a,M,A,w={};w.cancelScroll=function(e){cancelAnimationFrame(A),A=null,e||Q("scrollCancel",I)},w.animateScroll=function(i,s,e){w.cancelScroll();var c=H(I||L,e||{}),u="[object Number]"===Object.prototype.toString.call(i),t=u||!i.tagName?null:i;if(u||t){var l=C.pageYOffset;c.header&&!M&&(M=document.querySelector(c.header));var n,o,a,d,r,f,m,h,p=x(M),g=u?i:(function(e,t,n,o){var a=0;if(e.offsetParent)for(;a+=e.offsetTop,e=e.offsetParent;);return a=Math.max(a-t-n,0),o&&(a=Math.min(a,q()-C.innerHeight)),a})(t,p,parseInt("function"==typeof c.offset?c.offset(i,s):c.offset,10),c.clip),y=g-l,v=q(),S=0,E=(n=y,a=(o=c).speedAsDuration?o.speed:Math.abs(n/1e3*o.speed),o.durationMax&&a>o.durationMax?o.durationMax:o.durationMin&&a<o.durationMin?o.durationMin:parseInt(a,10)),b=function(e,t){var n,o,a,r=C.pageYOffset;if(e==t||r==t||(l<t&&C.innerHeight+r)>=v)return w.cancelScroll(!0),o=t,a=u,0===(n=i)&&document.body.focus(),a||(n.focus(),document.activeElement!==n&&(n.setAttribute("tabindex","-1"),n.focus(),n.style.outline="none"),C.scrollTo(0,o)),Q("scrollStop",c,i,s),!(A=d=null)},O=function(e){var t,n,o;d||(d=e),S+=e-d,f=l+y*(n=r=1<(r=0===E?0:S/E)?1:r,"easeInQuad"===(t=c).easing&&(o=n*n),"easeOutQuad"===t.easing&&(o=n*(2-n)),"easeInOutQuad"===t.easing&&(o=n<.5?2*n*n:(4-2*n)*n-1),"easeInCubic"===t.easing&&(o=n*n*n),"easeOutCubic"===t.easing&&(o=--n*n*n+1),"easeInOutCubic"===t.easing&&(o=n<.5?4*n*n*n:(n-1)*(2*n-2)*(2*n-2)+1),"easeInQuart"===t.easing&&(o=n*n*n*n),"easeOutQuart"===t.easing&&(o=1- --n*n*n*n),"easeInOutQuart"===t.easing&&(o=n<.5?8*n*n*n*n:1-8*--n*n*n*n),"easeInQuint"===t.easing&&(o=n*n*n*n*n),"easeOutQuint"===t.easing&&(o=1+--n*n*n*n*n),"easeInOutQuint"===t.easing&&(o=n<.5?16*n*n*n*n*n:1+16*--n*n*n*n*n),t.customEasing&&(o=t.customEasing(n)),o||n),C.scrollTo(0,Math.floor(f)),b(f,g)||(A=C.requestAnimationFrame(O),d=e)};0===C.pageYOffset&&C.scrollTo(0,0),m=i,h=c,u||history.pushState&&h.updateURL&&history.pushState({smoothScroll:JSON.stringify(h),anchor:m.id},document.title,m===document.documentElement?"#top":"#"+m.id),Q("scrollStart",c,i,s),w.cancelScroll(!0),C.requestAnimationFrame(O)}};var t=function(e){if(!("matchMedia"in C&&C.matchMedia("(prefers-reduced-motion)").matches)&&!e.defaultPrevented&&!(0!==e.button||e.metaKey||e.ctrlKey||e.shiftKey)&&"closest"in e.target&&(a=e.target.closest(o))&&"a"===a.tagName.toLowerCase()&&!e.target.closest(I.ignore)&&a.hostname===C.location.hostname&&a.pathname===C.location.pathname&&/#/.test(a.href)){var t=r(a.hash),n=I.topOnEmptyHash&&"#"===t?document.documentElement:document.querySelector(t);(n=n||"#top"!==t?n:document.documentElement)&&(e.preventDefault(),(function(e){if(history.replaceState&&e.updateURL&&!history.state){var t=C.location.hash;t=t||"",history.replaceState({smoothScroll:JSON.stringify(e),anchor:t||C.pageYOffset},document.title,t||C.location.href)}})(I),w.animateScroll(n,a))}},n=function(e){if(null!==history.state&&history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(I)){var t=history.state.anchor;"string"==typeof t&&t&&!(t=document.querySelector(r(history.state.anchor)))||w.animateScroll(t,null,{updateURL:!1})}};w.destroy=function(){I&&(document.removeEventListener("click",t,!1),C.removeEventListener("popstate",n,!1),w.cancelScroll(),A=M=a=I=null)};return (function(){if(!("querySelector"in document&&"addEventListener"in C&&"requestAnimationFrame"in C&&"closest"in C.Element.prototype))throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";w.destroy(),I=H(L,e||{}),M=I.header?document.querySelector(I.header):null,document.addEventListener("click",t,!1),I.updateURL&&I.popstate&&C.addEventListener("popstate",n,!1)})(),w}}));
\ No newline at end of file
+/*! smooth-scroll v16.0.3 | (c) 2019 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
+!(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(C){"use strict";var L={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,speedAsDuration:!1,durationMax:null,durationMin:null,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},H=function(){var n={};return Array.prototype.forEach.call(arguments,(function(e){for(var t in e){if(!e.hasOwnProperty(t))return;n[t]=e[t]}})),n},r=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,a=-1,r="",i=n.charCodeAt(0);++a<o;){if(0===(t=n.charCodeAt(a)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");1<=t&&t<=31||127==t||0===a&&48<=t&&t<=57||1===a&&48<=t&&t<=57&&45===i?r+="\\"+t.toString(16)+" ":r+=128<=t||45===t||95===t||48<=t&&t<=57||65<=t&&t<=90||97<=t&&t<=122?n.charAt(a):"\\"+n.charAt(a)}return"#"+r},q=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},x=function(e){return e?(t=e,parseInt(C.getComputedStyle(t).height,10)+e.offsetTop):0;var t},Q=function(e,t,n,o){if(t.emitEvents&&"function"==typeof C.CustomEvent){var a=new CustomEvent(e,{bubbles:!0,detail:{anchor:n,toggle:o}});document.dispatchEvent(a)}};return function(o,e){var I,a,M,A,w={};w.cancelScroll=function(e){cancelAnimationFrame(A),A=null,e||Q("scrollCancel",I)},w.animateScroll=function(i,s,e){w.cancelScroll();var c=H(I||L,e||{}),u="[object Number]"===Object.prototype.toString.call(i),t=u||!i.tagName?null:i;if(u||t){var l=C.pageYOffset;c.header&&!M&&(M=document.querySelector(c.header));var n,o,a,d,r,f,m,h,p=x(M),g=u?i:(function(e,t,n,o){var a=0;if(e.offsetParent)for(;a+=e.offsetTop,e=e.offsetParent;);return a=Math.max(a-t-n,0),o&&(a=Math.min(a,q()-C.innerHeight)),a})(t,p,parseInt("function"==typeof c.offset?c.offset(i,s):c.offset,10),c.clip),y=g-l,v=q(),S=0,E=(n=y,a=(o=c).speedAsDuration?o.speed:Math.abs(n/1e3*o.speed),o.durationMax&&a>o.durationMax?o.durationMax:o.durationMin&&a<o.durationMin?o.durationMin:parseInt(a,10)),b=function(e,t){var n,o,a,r=C.pageYOffset;if(e==t||r==t||(l<t&&C.innerHeight+r)>=v)return w.cancelScroll(!0),o=t,a=u,0===(n=i)&&document.body.focus(),a||(n.focus(),document.activeElement!==n&&(n.setAttribute("tabindex","-1"),n.focus(),n.style.outline="none"),C.scrollTo(0,o)),Q("scrollStop",c,i,s),!(A=d=null)},O=function(e){var t,n,o;d||(d=e),S+=e-d,f=l+y*(n=r=1<(r=0===E?0:S/E)?1:r,"easeInQuad"===(t=c).easing&&(o=n*n),"easeOutQuad"===t.easing&&(o=n*(2-n)),"easeInOutQuad"===t.easing&&(o=n<.5?2*n*n:(4-2*n)*n-1),"easeInCubic"===t.easing&&(o=n*n*n),"easeOutCubic"===t.easing&&(o=--n*n*n+1),"easeInOutCubic"===t.easing&&(o=n<.5?4*n*n*n:(n-1)*(2*n-2)*(2*n-2)+1),"easeInQuart"===t.easing&&(o=n*n*n*n),"easeOutQuart"===t.easing&&(o=1- --n*n*n*n),"easeInOutQuart"===t.easing&&(o=n<.5?8*n*n*n*n:1-8*--n*n*n*n),"easeInQuint"===t.easing&&(o=n*n*n*n*n),"easeOutQuint"===t.easing&&(o=1+--n*n*n*n*n),"easeInOutQuint"===t.easing&&(o=n<.5?16*n*n*n*n*n:1+16*--n*n*n*n*n),t.customEasing&&(o=t.customEasing(n)),o||n),C.scrollTo(0,Math.floor(f)),b(f,g)||(A=C.requestAnimationFrame(O),d=e)};0===C.pageYOffset&&C.scrollTo(0,0),m=i,h=c,u||history.pushState&&h.updateURL&&history.pushState({smoothScroll:JSON.stringify(h),anchor:m.id},document.title,m===document.documentElement?"#top":"#"+m.id),Q("scrollStart",c,i,s),w.cancelScroll(!0),C.requestAnimationFrame(O)}};var t=function(e){if(!("matchMedia"in C&&C.matchMedia("(prefers-reduced-motion)").matches)&&!e.defaultPrevented&&!(0!==e.button||e.metaKey||e.ctrlKey||e.shiftKey)&&"closest"in e.target&&(a=e.target.closest(o))&&"a"===a.tagName.toLowerCase()&&!e.target.closest(I.ignore)&&a.hostname===C.location.hostname&&a.pathname===C.location.pathname&&/#/.test(a.href)){var t,n=r(a.hash);if("#"===n){if(!I.topOnEmptyHash)return;t=document.documentElement}else t=document.querySelector(n);(t=t||"#top"!==n?t:document.documentElement)&&(e.preventDefault(),(function(e){if(history.replaceState&&e.updateURL&&!history.state){var t=C.location.hash;t=t||"",history.replaceState({smoothScroll:JSON.stringify(e),anchor:t||C.pageYOffset},document.title,t||C.location.href)}})(I),w.animateScroll(t,a))}},n=function(e){if(null!==history.state&&history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(I)){var t=history.state.anchor;"string"==typeof t&&t&&!(t=document.querySelector(r(history.state.anchor)))||w.animateScroll(t,null,{updateURL:!1})}};w.destroy=function(){I&&(document.removeEventListener("click",t,!1),C.removeEventListener("popstate",n,!1),w.cancelScroll(),A=M=a=I=null)};return (function(){if(!("querySelector"in document&&"addEventListener"in C&&"requestAnimationFrame"in C&&"closest"in C.Element.prototype))throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";w.destroy(),I=H(L,e||{}),M=I.header?document.querySelector(I.header):null,document.addEventListener("click",t,!1),I.updateURL&&I.popstate&&C.addEventListener("popstate",n,!1)})(),w}}));
\ No newline at end of file
diff --git a/dist/smooth-scroll.polyfills.js b/dist/smooth-scroll.polyfills.js
index 1305faa..631973d 100755
--- a/dist/smooth-scroll.polyfills.js
+++ b/dist/smooth-scroll.polyfills.js
@@ -1,5 +1,5 @@
 /*!
- * smooth-scroll v16.0.2
+ * smooth-scroll v16.0.3
  * Animate scrolling to anchor links
  * (c) 2019 Chris Ferdinandi
  * MIT License
@@ -595,7 +595,13 @@ if (window.Element && !Element.prototype.closest) {
 			var hash = escapeCharacters(toggle.hash);
 
 			// Get the anchored element
-			var anchor = settings.topOnEmptyHash && hash === '#' ? document.documentElement : document.querySelector(hash);
+			var anchor;
+			if (hash === '#') {
+				if (!settings.topOnEmptyHash) return;
+				anchor = document.documentElement;
+			} else {
+				anchor = document.querySelector(hash);
+			}
 			anchor = !anchor && hash === '#top' ? document.documentElement : anchor;
 
 			// If anchored element exists, scroll to it
diff --git a/dist/smooth-scroll.polyfills.min.js b/dist/smooth-scroll.polyfills.min.js
index 6b1f7b7..a6a2040 100755
--- a/dist/smooth-scroll.polyfills.min.js
+++ b/dist/smooth-scroll.polyfills.min.js
@@ -1,2 +1,2 @@
-/*! smooth-scroll v16.0.2 | (c) 2019 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
-window.Element&&!Element.prototype.closest&&(Element.prototype.closest=function(e){var t,n=(this.document||this.ownerDocument).querySelectorAll(e),o=this;do{for(t=n.length;0<=--t&&n.item(t)!==o;);}while(t<0&&(o=o.parentElement));return o}),(function(){if("function"==typeof window.CustomEvent)return;function e(e,t){t=t||{bubbles:!1,cancelable:!1,detail:void 0};var n=document.createEvent("CustomEvent");return n.initCustomEvent(e,t.bubbles,t.cancelable,t.detail),n}e.prototype=window.Event.prototype,window.CustomEvent=e})(),(function(){for(var r=0,e=["ms","moz","webkit","o"],t=0;t<e.length&&!window.requestAnimationFrame;++t)window.requestAnimationFrame=window[e[t]+"RequestAnimationFrame"],window.cancelAnimationFrame=window[e[t]+"CancelAnimationFrame"]||window[e[t]+"CancelRequestAnimationFrame"];window.requestAnimationFrame||(window.requestAnimationFrame=function(e,t){var n=(new Date).getTime(),o=Math.max(0,16-(n-r)),a=window.setTimeout((function(){e(n+o)}),o);return r=n+o,a}),window.cancelAnimationFrame||(window.cancelAnimationFrame=function(e){clearTimeout(e)})})(),(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(M){"use strict";var I={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,speedAsDuration:!1,durationMax:null,durationMin:null,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},F=function(){var n={};return Array.prototype.forEach.call(arguments,(function(e){for(var t in e){if(!e.hasOwnProperty(t))return;n[t]=e[t]}})),n},r=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,a=-1,r="",i=n.charCodeAt(0);++a<o;){if(0===(t=n.charCodeAt(a)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");1<=t&&t<=31||127==t||0===a&&48<=t&&t<=57||1===a&&48<=t&&t<=57&&45===i?r+="\\"+t.toString(16)+" ":r+=128<=t||45===t||95===t||48<=t&&t<=57||65<=t&&t<=90||97<=t&&t<=122?n.charAt(a):"\\"+n.charAt(a)}return"#"+r},L=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},x=function(e){return e?(t=e,parseInt(M.getComputedStyle(t).height,10)+e.offsetTop):0;var t},H=function(e,t,n,o){if(t.emitEvents&&"function"==typeof M.CustomEvent){var a=new CustomEvent(e,{bubbles:!0,detail:{anchor:n,toggle:o}});document.dispatchEvent(a)}};return function(o,e){var A,a,O,C,q={};q.cancelScroll=function(e){cancelAnimationFrame(C),C=null,e||H("scrollCancel",A)},q.animateScroll=function(i,c,e){q.cancelScroll();var s=F(A||I,e||{}),u="[object Number]"===Object.prototype.toString.call(i),t=u||!i.tagName?null:i;if(u||t){var l=M.pageYOffset;s.header&&!O&&(O=document.querySelector(s.header));var n,o,a,m,r,d,f,h,p=x(O),g=u?i:(function(e,t,n,o){var a=0;if(e.offsetParent)for(;a+=e.offsetTop,e=e.offsetParent;);return a=Math.max(a-t-n,0),o&&(a=Math.min(a,L()-M.innerHeight)),a})(t,p,parseInt("function"==typeof s.offset?s.offset(i,c):s.offset,10),s.clip),y=g-l,v=L(),w=0,S=(n=y,a=(o=s).speedAsDuration?o.speed:Math.abs(n/1e3*o.speed),o.durationMax&&a>o.durationMax?o.durationMax:o.durationMin&&a<o.durationMin?o.durationMin:parseInt(a,10)),E=function(e,t){var n,o,a,r=M.pageYOffset;if(e==t||r==t||(l<t&&M.innerHeight+r)>=v)return q.cancelScroll(!0),o=t,a=u,0===(n=i)&&document.body.focus(),a||(n.focus(),document.activeElement!==n&&(n.setAttribute("tabindex","-1"),n.focus(),n.style.outline="none"),M.scrollTo(0,o)),H("scrollStop",s,i,c),!(C=m=null)},b=function(e){var t,n,o;m||(m=e),w+=e-m,d=l+y*(n=r=1<(r=0===S?0:w/S)?1:r,"easeInQuad"===(t=s).easing&&(o=n*n),"easeOutQuad"===t.easing&&(o=n*(2-n)),"easeInOutQuad"===t.easing&&(o=n<.5?2*n*n:(4-2*n)*n-1),"easeInCubic"===t.easing&&(o=n*n*n),"easeOutCubic"===t.easing&&(o=--n*n*n+1),"easeInOutCubic"===t.easing&&(o=n<.5?4*n*n*n:(n-1)*(2*n-2)*(2*n-2)+1),"easeInQuart"===t.easing&&(o=n*n*n*n),"easeOutQuart"===t.easing&&(o=1- --n*n*n*n),"easeInOutQuart"===t.easing&&(o=n<.5?8*n*n*n*n:1-8*--n*n*n*n),"easeInQuint"===t.easing&&(o=n*n*n*n*n),"easeOutQuint"===t.easing&&(o=1+--n*n*n*n*n),"easeInOutQuint"===t.easing&&(o=n<.5?16*n*n*n*n*n:1+16*--n*n*n*n*n),t.customEasing&&(o=t.customEasing(n)),o||n),M.scrollTo(0,Math.floor(d)),E(d,g)||(C=M.requestAnimationFrame(b),m=e)};0===M.pageYOffset&&M.scrollTo(0,0),f=i,h=s,u||history.pushState&&h.updateURL&&history.pushState({smoothScroll:JSON.stringify(h),anchor:f.id},document.title,f===document.documentElement?"#top":"#"+f.id),H("scrollStart",s,i,c),q.cancelScroll(!0),M.requestAnimationFrame(b)}};var t=function(e){if(!("matchMedia"in M&&M.matchMedia("(prefers-reduced-motion)").matches)&&!e.defaultPrevented&&!(0!==e.button||e.metaKey||e.ctrlKey||e.shiftKey)&&"closest"in e.target&&(a=e.target.closest(o))&&"a"===a.tagName.toLowerCase()&&!e.target.closest(A.ignore)&&a.hostname===M.location.hostname&&a.pathname===M.location.pathname&&/#/.test(a.href)){var t=r(a.hash),n=A.topOnEmptyHash&&"#"===t?document.documentElement:document.querySelector(t);(n=n||"#top"!==t?n:document.documentElement)&&(e.preventDefault(),(function(e){if(history.replaceState&&e.updateURL&&!history.state){var t=M.location.hash;t=t||"",history.replaceState({smoothScroll:JSON.stringify(e),anchor:t||M.pageYOffset},document.title,t||M.location.href)}})(A),q.animateScroll(n,a))}},n=function(e){if(null!==history.state&&history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(A)){var t=history.state.anchor;"string"==typeof t&&t&&!(t=document.querySelector(r(history.state.anchor)))||q.animateScroll(t,null,{updateURL:!1})}};q.destroy=function(){A&&(document.removeEventListener("click",t,!1),M.removeEventListener("popstate",n,!1),q.cancelScroll(),C=O=a=A=null)};return (function(){if(!("querySelector"in document&&"addEventListener"in M&&"requestAnimationFrame"in M&&"closest"in M.Element.prototype))throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";q.destroy(),A=F(I,e||{}),O=A.header?document.querySelector(A.header):null,document.addEventListener("click",t,!1),A.updateURL&&A.popstate&&M.addEventListener("popstate",n,!1)})(),q}}));
\ No newline at end of file
+/*! smooth-scroll v16.0.3 | (c) 2019 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
+window.Element&&!Element.prototype.closest&&(Element.prototype.closest=function(e){var t,n=(this.document||this.ownerDocument).querySelectorAll(e),o=this;do{for(t=n.length;0<=--t&&n.item(t)!==o;);}while(t<0&&(o=o.parentElement));return o}),(function(){if("function"==typeof window.CustomEvent)return;function e(e,t){t=t||{bubbles:!1,cancelable:!1,detail:void 0};var n=document.createEvent("CustomEvent");return n.initCustomEvent(e,t.bubbles,t.cancelable,t.detail),n}e.prototype=window.Event.prototype,window.CustomEvent=e})(),(function(){for(var r=0,e=["ms","moz","webkit","o"],t=0;t<e.length&&!window.requestAnimationFrame;++t)window.requestAnimationFrame=window[e[t]+"RequestAnimationFrame"],window.cancelAnimationFrame=window[e[t]+"CancelAnimationFrame"]||window[e[t]+"CancelRequestAnimationFrame"];window.requestAnimationFrame||(window.requestAnimationFrame=function(e,t){var n=(new Date).getTime(),o=Math.max(0,16-(n-r)),a=window.setTimeout((function(){e(n+o)}),o);return r=n+o,a}),window.cancelAnimationFrame||(window.cancelAnimationFrame=function(e){clearTimeout(e)})})(),(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(M){"use strict";var I={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,speedAsDuration:!1,durationMax:null,durationMin:null,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},F=function(){var n={};return Array.prototype.forEach.call(arguments,(function(e){for(var t in e){if(!e.hasOwnProperty(t))return;n[t]=e[t]}})),n},r=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,a=-1,r="",i=n.charCodeAt(0);++a<o;){if(0===(t=n.charCodeAt(a)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");1<=t&&t<=31||127==t||0===a&&48<=t&&t<=57||1===a&&48<=t&&t<=57&&45===i?r+="\\"+t.toString(16)+" ":r+=128<=t||45===t||95===t||48<=t&&t<=57||65<=t&&t<=90||97<=t&&t<=122?n.charAt(a):"\\"+n.charAt(a)}return"#"+r},L=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},x=function(e){return e?(t=e,parseInt(M.getComputedStyle(t).height,10)+e.offsetTop):0;var t},H=function(e,t,n,o){if(t.emitEvents&&"function"==typeof M.CustomEvent){var a=new CustomEvent(e,{bubbles:!0,detail:{anchor:n,toggle:o}});document.dispatchEvent(a)}};return function(o,e){var A,a,O,C,q={};q.cancelScroll=function(e){cancelAnimationFrame(C),C=null,e||H("scrollCancel",A)},q.animateScroll=function(i,c,e){q.cancelScroll();var s=F(A||I,e||{}),u="[object Number]"===Object.prototype.toString.call(i),t=u||!i.tagName?null:i;if(u||t){var l=M.pageYOffset;s.header&&!O&&(O=document.querySelector(s.header));var n,o,a,m,r,d,f,h,p=x(O),g=u?i:(function(e,t,n,o){var a=0;if(e.offsetParent)for(;a+=e.offsetTop,e=e.offsetParent;);return a=Math.max(a-t-n,0),o&&(a=Math.min(a,L()-M.innerHeight)),a})(t,p,parseInt("function"==typeof s.offset?s.offset(i,c):s.offset,10),s.clip),y=g-l,v=L(),w=0,S=(n=y,a=(o=s).speedAsDuration?o.speed:Math.abs(n/1e3*o.speed),o.durationMax&&a>o.durationMax?o.durationMax:o.durationMin&&a<o.durationMin?o.durationMin:parseInt(a,10)),E=function(e,t){var n,o,a,r=M.pageYOffset;if(e==t||r==t||(l<t&&M.innerHeight+r)>=v)return q.cancelScroll(!0),o=t,a=u,0===(n=i)&&document.body.focus(),a||(n.focus(),document.activeElement!==n&&(n.setAttribute("tabindex","-1"),n.focus(),n.style.outline="none"),M.scrollTo(0,o)),H("scrollStop",s,i,c),!(C=m=null)},b=function(e){var t,n,o;m||(m=e),w+=e-m,d=l+y*(n=r=1<(r=0===S?0:w/S)?1:r,"easeInQuad"===(t=s).easing&&(o=n*n),"easeOutQuad"===t.easing&&(o=n*(2-n)),"easeInOutQuad"===t.easing&&(o=n<.5?2*n*n:(4-2*n)*n-1),"easeInCubic"===t.easing&&(o=n*n*n),"easeOutCubic"===t.easing&&(o=--n*n*n+1),"easeInOutCubic"===t.easing&&(o=n<.5?4*n*n*n:(n-1)*(2*n-2)*(2*n-2)+1),"easeInQuart"===t.easing&&(o=n*n*n*n),"easeOutQuart"===t.easing&&(o=1- --n*n*n*n),"easeInOutQuart"===t.easing&&(o=n<.5?8*n*n*n*n:1-8*--n*n*n*n),"easeInQuint"===t.easing&&(o=n*n*n*n*n),"easeOutQuint"===t.easing&&(o=1+--n*n*n*n*n),"easeInOutQuint"===t.easing&&(o=n<.5?16*n*n*n*n*n:1+16*--n*n*n*n*n),t.customEasing&&(o=t.customEasing(n)),o||n),M.scrollTo(0,Math.floor(d)),E(d,g)||(C=M.requestAnimationFrame(b),m=e)};0===M.pageYOffset&&M.scrollTo(0,0),f=i,h=s,u||history.pushState&&h.updateURL&&history.pushState({smoothScroll:JSON.stringify(h),anchor:f.id},document.title,f===document.documentElement?"#top":"#"+f.id),H("scrollStart",s,i,c),q.cancelScroll(!0),M.requestAnimationFrame(b)}};var t=function(e){if(!("matchMedia"in M&&M.matchMedia("(prefers-reduced-motion)").matches)&&!e.defaultPrevented&&!(0!==e.button||e.metaKey||e.ctrlKey||e.shiftKey)&&"closest"in e.target&&(a=e.target.closest(o))&&"a"===a.tagName.toLowerCase()&&!e.target.closest(A.ignore)&&a.hostname===M.location.hostname&&a.pathname===M.location.pathname&&/#/.test(a.href)){var t,n=r(a.hash);if("#"===n){if(!A.topOnEmptyHash)return;t=document.documentElement}else t=document.querySelector(n);(t=t||"#top"!==n?t:document.documentElement)&&(e.preventDefault(),(function(e){if(history.replaceState&&e.updateURL&&!history.state){var t=M.location.hash;t=t||"",history.replaceState({smoothScroll:JSON.stringify(e),anchor:t||M.pageYOffset},document.title,t||M.location.href)}})(A),q.animateScroll(t,a))}},n=function(e){if(null!==history.state&&history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(A)){var t=history.state.anchor;"string"==typeof t&&t&&!(t=document.querySelector(r(history.state.anchor)))||q.animateScroll(t,null,{updateURL:!1})}};q.destroy=function(){A&&(document.removeEventListener("click",t,!1),M.removeEventListener("popstate",n,!1),q.cancelScroll(),C=O=a=A=null)};return (function(){if(!("querySelector"in document&&"addEventListener"in M&&"requestAnimationFrame"in M&&"closest"in M.Element.prototype))throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";q.destroy(),A=F(I,e||{}),O=A.header?document.querySelector(A.header):null,document.addEventListener("click",t,!1),A.updateURL&&A.popstate&&M.addEventListener("popstate",n,!1)})(),q}}));
\ No newline at end of file
diff --git a/jump-to-top.html b/jump-to-top.html
new file mode 100644
index 0000000..393e4ad
--- /dev/null
+++ b/jump-to-top.html
@@ -0,0 +1,60 @@
+<!DOCTYPE html>
+<html lang="en">
+
+	<head>
+		<meta charset="utf-8">
+		<title>Smooth Scroll</title>
+		<meta name="viewport" content="width=device-width, initial-scale=1.0">
+
+		<!-- stylesheets -->
+		<style type="text/css">
+			body {
+				font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Roboto", "Oxygen", "Ubuntu", "Cantarell", "Fira Sans", "Droid Sans", "Helvetica Neue", sans-serif;
+				font-size: 112.5%;
+				margin-left: auto;
+				margin-right: auto;
+				max-width: 40em;
+				width: 88%;
+			}
+		</style>
+	</head>
+
+	<body>
+
+		<main id="top">
+
+			<nav>
+				<h1>Smooth Scroll</h1>
+				<p><a href="https://github.com/cferdinandi/smooth-scroll">GitHub</a></p>
+				<hr>
+			</nav>
+
+			<section>
+
+				<p>
+				    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
+				    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
+				    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
+				    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
+				    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
+				    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
+				    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
+				    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.
+				</p>
+
+				<p><a href="#">Back to the top</a></p>
+			</section>
+		</main>
+
+		<!-- Javascript -->
+		<script src="http://github.com/dist/smooth-scroll.polyfills.js"></script>
+		<script>
+			// Instantiate Scrolls
+			var scroll = new SmoothScroll('a[href*="#"]', {
+				topOnEmptyHash: false
+			});
+		</script>
+
+
+	</body>
+</html>
\ No newline at end of file
diff --git a/package.json b/package.json
index fa5cff4..08d0348 100755
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
 	"name": "smooth-scroll",
-	"version": "16.0.2",
+	"version": "16.0.3",
 	"description": "Animate scrolling to anchor links",
 	"main": "./dist/smooth-scroll.polyfills.min.js",
 	"author": {
diff --git a/src/copy/jump-to-top.html b/src/copy/jump-to-top.html
new file mode 100644
index 0000000..393e4ad
--- /dev/null
+++ b/src/copy/jump-to-top.html
@@ -0,0 +1,60 @@
+<!DOCTYPE html>
+<html lang="en">
+
+	<head>
+		<meta charset="utf-8">
+		<title>Smooth Scroll</title>
+		<meta name="viewport" content="width=device-width, initial-scale=1.0">
+
+		<!-- stylesheets -->
+		<style type="text/css">
+			body {
+				font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Roboto", "Oxygen", "Ubuntu", "Cantarell", "Fira Sans", "Droid Sans", "Helvetica Neue", sans-serif;
+				font-size: 112.5%;
+				margin-left: auto;
+				margin-right: auto;
+				max-width: 40em;
+				width: 88%;
+			}
+		</style>
+	</head>
+
+	<body>
+
+		<main id="top">
+
+			<nav>
+				<h1>Smooth Scroll</h1>
+				<p><a href="https://github.com/cferdinandi/smooth-scroll">GitHub</a></p>
+				<hr>
+			</nav>
+
+			<section>
+
+				<p>
+				    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
+				    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
+				    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
+				    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
+				    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
+				    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
+				    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
+				    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.
+				</p>
+
+				<p><a href="#">Back to the top</a></p>
+			</section>
+		</main>
+
+		<!-- Javascript -->
+		<script src="http://github.com/dist/smooth-scroll.polyfills.js"></script>
+		<script>
+			// Instantiate Scrolls
+			var scroll = new SmoothScroll('a[href*="#"]', {
+				topOnEmptyHash: false
+			});
+		</script>
+
+
+	</body>
+</html>
\ No newline at end of file
diff --git a/src/js/smooth-scroll/smooth-scroll.js b/src/js/smooth-scroll/smooth-scroll.js
index d2acb0d..734984d 100755
--- a/src/js/smooth-scroll/smooth-scroll.js
+++ b/src/js/smooth-scroll/smooth-scroll.js
@@ -517,7 +517,13 @@
 			var hash = escapeCharacters(toggle.hash);
 
 			// Get the anchored element
-			var anchor = settings.topOnEmptyHash && hash === '#' ? document.documentElement : document.querySelector(hash);
+			var anchor;
+			if (hash === '#') {
+				if (!settings.topOnEmptyHash) return;
+				anchor = document.documentElement;
+			} else {
+				anchor = document.querySelector(hash);
+			}
 			anchor = !anchor && hash === '#top' ? document.documentElement : anchor;
 
 			// If anchored element exists, scroll to it

From 31e7bc7bba8fbc145676fe07877de8ef84449b91 Mon Sep 17 00:00:00 2001
From: cferdinandi <chris@gomakethings.com>
Date: Tue, 11 Jun 2019 11:51:56 -0400
Subject: [PATCH 40/51] If reduce motion is enabled, still include header
 offset in anchor jump

---
 dist/smooth-scroll.js                 | 15 +++++++++------
 dist/smooth-scroll.min.js             |  4 ++--
 dist/smooth-scroll.polyfills.js       | 15 +++++++++------
 dist/smooth-scroll.polyfills.min.js   |  4 ++--
 package.json                          |  2 +-
 src/js/smooth-scroll/smooth-scroll.js | 13 ++++++++-----
 6 files changed, 31 insertions(+), 22 deletions(-)

diff --git a/dist/smooth-scroll.js b/dist/smooth-scroll.js
index 84663c9..21fbd11 100755
--- a/dist/smooth-scroll.js
+++ b/dist/smooth-scroll.js
@@ -1,5 +1,5 @@
 /*!
- * smooth-scroll v16.0.3
+ * smooth-scroll v16.1.0
  * Animate scrolling to anchor links
  * (c) 2019 Chris Ferdinandi
  * MIT License
@@ -90,7 +90,7 @@
 	 * Check to see if user prefers reduced motion
 	 * @param  {Object} settings Script settings
 	 */
-	var reduceMotion = function (settings) {
+	var reduceMotion = function () {
 		if ('matchMedia' in window && window.matchMedia('(prefers-reduced-motion)').matches) {
 			return true;
 		}
@@ -486,6 +486,12 @@
 			// Update the URL
 			updateURL(anchor, isNum, _settings);
 
+			// If the user prefers reduced motion, jump to location
+			if (reduceMotion()) {
+				window.scrollTo(0, Math.floor(endLocation));
+				return;
+			}
+
 			// Emit a custom event
 			emitEvent('scrollStart', _settings, anchor, toggle);
 
@@ -500,9 +506,6 @@
 		 */
 		var clickHandler = function (event) {
 
-			// Don't run if the user prefers reduced motion
-			if (reduceMotion(settings)) return;
-
 			// Don't run if event was canceled but still bubbled up
 			// By @mgreter - https://github.com/cferdinandi/smooth-scroll/pull/462/
 			if (event.defaultPrevented) return;
@@ -512,7 +515,7 @@
 
 			// Check if event.target has closest() method
 			// By @totegi - https://github.com/cferdinandi/smooth-scroll/pull/401/
-			if(!('closest' in event.target))return;
+			if (!('closest' in event.target)) return;
 
 			// Check if a smooth scroll link was clicked
 			toggle = event.target.closest(selector);
diff --git a/dist/smooth-scroll.min.js b/dist/smooth-scroll.min.js
index 5afd687..b1d6908 100755
--- a/dist/smooth-scroll.min.js
+++ b/dist/smooth-scroll.min.js
@@ -1,2 +1,2 @@
-/*! smooth-scroll v16.0.3 | (c) 2019 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
-!(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(C){"use strict";var L={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,speedAsDuration:!1,durationMax:null,durationMin:null,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},H=function(){var n={};return Array.prototype.forEach.call(arguments,(function(e){for(var t in e){if(!e.hasOwnProperty(t))return;n[t]=e[t]}})),n},r=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,a=-1,r="",i=n.charCodeAt(0);++a<o;){if(0===(t=n.charCodeAt(a)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");1<=t&&t<=31||127==t||0===a&&48<=t&&t<=57||1===a&&48<=t&&t<=57&&45===i?r+="\\"+t.toString(16)+" ":r+=128<=t||45===t||95===t||48<=t&&t<=57||65<=t&&t<=90||97<=t&&t<=122?n.charAt(a):"\\"+n.charAt(a)}return"#"+r},q=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},x=function(e){return e?(t=e,parseInt(C.getComputedStyle(t).height,10)+e.offsetTop):0;var t},Q=function(e,t,n,o){if(t.emitEvents&&"function"==typeof C.CustomEvent){var a=new CustomEvent(e,{bubbles:!0,detail:{anchor:n,toggle:o}});document.dispatchEvent(a)}};return function(o,e){var I,a,M,A,w={};w.cancelScroll=function(e){cancelAnimationFrame(A),A=null,e||Q("scrollCancel",I)},w.animateScroll=function(i,s,e){w.cancelScroll();var c=H(I||L,e||{}),u="[object Number]"===Object.prototype.toString.call(i),t=u||!i.tagName?null:i;if(u||t){var l=C.pageYOffset;c.header&&!M&&(M=document.querySelector(c.header));var n,o,a,d,r,f,m,h,p=x(M),g=u?i:(function(e,t,n,o){var a=0;if(e.offsetParent)for(;a+=e.offsetTop,e=e.offsetParent;);return a=Math.max(a-t-n,0),o&&(a=Math.min(a,q()-C.innerHeight)),a})(t,p,parseInt("function"==typeof c.offset?c.offset(i,s):c.offset,10),c.clip),y=g-l,v=q(),S=0,E=(n=y,a=(o=c).speedAsDuration?o.speed:Math.abs(n/1e3*o.speed),o.durationMax&&a>o.durationMax?o.durationMax:o.durationMin&&a<o.durationMin?o.durationMin:parseInt(a,10)),b=function(e,t){var n,o,a,r=C.pageYOffset;if(e==t||r==t||(l<t&&C.innerHeight+r)>=v)return w.cancelScroll(!0),o=t,a=u,0===(n=i)&&document.body.focus(),a||(n.focus(),document.activeElement!==n&&(n.setAttribute("tabindex","-1"),n.focus(),n.style.outline="none"),C.scrollTo(0,o)),Q("scrollStop",c,i,s),!(A=d=null)},O=function(e){var t,n,o;d||(d=e),S+=e-d,f=l+y*(n=r=1<(r=0===E?0:S/E)?1:r,"easeInQuad"===(t=c).easing&&(o=n*n),"easeOutQuad"===t.easing&&(o=n*(2-n)),"easeInOutQuad"===t.easing&&(o=n<.5?2*n*n:(4-2*n)*n-1),"easeInCubic"===t.easing&&(o=n*n*n),"easeOutCubic"===t.easing&&(o=--n*n*n+1),"easeInOutCubic"===t.easing&&(o=n<.5?4*n*n*n:(n-1)*(2*n-2)*(2*n-2)+1),"easeInQuart"===t.easing&&(o=n*n*n*n),"easeOutQuart"===t.easing&&(o=1- --n*n*n*n),"easeInOutQuart"===t.easing&&(o=n<.5?8*n*n*n*n:1-8*--n*n*n*n),"easeInQuint"===t.easing&&(o=n*n*n*n*n),"easeOutQuint"===t.easing&&(o=1+--n*n*n*n*n),"easeInOutQuint"===t.easing&&(o=n<.5?16*n*n*n*n*n:1+16*--n*n*n*n*n),t.customEasing&&(o=t.customEasing(n)),o||n),C.scrollTo(0,Math.floor(f)),b(f,g)||(A=C.requestAnimationFrame(O),d=e)};0===C.pageYOffset&&C.scrollTo(0,0),m=i,h=c,u||history.pushState&&h.updateURL&&history.pushState({smoothScroll:JSON.stringify(h),anchor:m.id},document.title,m===document.documentElement?"#top":"#"+m.id),Q("scrollStart",c,i,s),w.cancelScroll(!0),C.requestAnimationFrame(O)}};var t=function(e){if(!("matchMedia"in C&&C.matchMedia("(prefers-reduced-motion)").matches)&&!e.defaultPrevented&&!(0!==e.button||e.metaKey||e.ctrlKey||e.shiftKey)&&"closest"in e.target&&(a=e.target.closest(o))&&"a"===a.tagName.toLowerCase()&&!e.target.closest(I.ignore)&&a.hostname===C.location.hostname&&a.pathname===C.location.pathname&&/#/.test(a.href)){var t,n=r(a.hash);if("#"===n){if(!I.topOnEmptyHash)return;t=document.documentElement}else t=document.querySelector(n);(t=t||"#top"!==n?t:document.documentElement)&&(e.preventDefault(),(function(e){if(history.replaceState&&e.updateURL&&!history.state){var t=C.location.hash;t=t||"",history.replaceState({smoothScroll:JSON.stringify(e),anchor:t||C.pageYOffset},document.title,t||C.location.href)}})(I),w.animateScroll(t,a))}},n=function(e){if(null!==history.state&&history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(I)){var t=history.state.anchor;"string"==typeof t&&t&&!(t=document.querySelector(r(history.state.anchor)))||w.animateScroll(t,null,{updateURL:!1})}};w.destroy=function(){I&&(document.removeEventListener("click",t,!1),C.removeEventListener("popstate",n,!1),w.cancelScroll(),A=M=a=I=null)};return (function(){if(!("querySelector"in document&&"addEventListener"in C&&"requestAnimationFrame"in C&&"closest"in C.Element.prototype))throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";w.destroy(),I=H(L,e||{}),M=I.header?document.querySelector(I.header):null,document.addEventListener("click",t,!1),I.updateURL&&I.popstate&&C.addEventListener("popstate",n,!1)})(),w}}));
\ No newline at end of file
+/*! smooth-scroll v16.1.0 | (c) 2019 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
+!(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(C){"use strict";var L={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,speedAsDuration:!1,durationMax:null,durationMin:null,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},H=function(){var n={};return Array.prototype.forEach.call(arguments,(function(e){for(var t in e){if(!e.hasOwnProperty(t))return;n[t]=e[t]}})),n},r=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,a=-1,r="",i=n.charCodeAt(0);++a<o;){if(0===(t=n.charCodeAt(a)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");1<=t&&t<=31||127==t||0===a&&48<=t&&t<=57||1===a&&48<=t&&t<=57&&45===i?r+="\\"+t.toString(16)+" ":r+=128<=t||45===t||95===t||48<=t&&t<=57||65<=t&&t<=90||97<=t&&t<=122?n.charAt(a):"\\"+n.charAt(a)}return"#"+r},q=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},x=function(e){return e?(t=e,parseInt(C.getComputedStyle(t).height,10)+e.offsetTop):0;var t},Q=function(e,t,n,o){if(t.emitEvents&&"function"==typeof C.CustomEvent){var a=new CustomEvent(e,{bubbles:!0,detail:{anchor:n,toggle:o}});document.dispatchEvent(a)}};return function(o,e){var M,a,I,A,w={};w.cancelScroll=function(e){cancelAnimationFrame(A),A=null,e||Q("scrollCancel",M)},w.animateScroll=function(i,s,e){w.cancelScroll();var c=H(M||L,e||{}),u="[object Number]"===Object.prototype.toString.call(i),t=u||!i.tagName?null:i;if(u||t){var l=C.pageYOffset;c.header&&!I&&(I=document.querySelector(c.header));var n,o,a,d,r,f,m,h,p=x(I),g=u?i:(function(e,t,n,o){var a=0;if(e.offsetParent)for(;a+=e.offsetTop,e=e.offsetParent;);return a=Math.max(a-t-n,0),o&&(a=Math.min(a,q()-C.innerHeight)),a})(t,p,parseInt("function"==typeof c.offset?c.offset(i,s):c.offset,10),c.clip),y=g-l,v=q(),S=0,E=(n=y,a=(o=c).speedAsDuration?o.speed:Math.abs(n/1e3*o.speed),o.durationMax&&a>o.durationMax?o.durationMax:o.durationMin&&a<o.durationMin?o.durationMin:parseInt(a,10)),b=function(e,t){var n,o,a,r=C.pageYOffset;if(e==t||r==t||(l<t&&C.innerHeight+r)>=v)return w.cancelScroll(!0),o=t,a=u,0===(n=i)&&document.body.focus(),a||(n.focus(),document.activeElement!==n&&(n.setAttribute("tabindex","-1"),n.focus(),n.style.outline="none"),C.scrollTo(0,o)),Q("scrollStop",c,i,s),!(A=d=null)},O=function(e){var t,n,o;d||(d=e),S+=e-d,f=l+y*(n=r=1<(r=0===E?0:S/E)?1:r,"easeInQuad"===(t=c).easing&&(o=n*n),"easeOutQuad"===t.easing&&(o=n*(2-n)),"easeInOutQuad"===t.easing&&(o=n<.5?2*n*n:(4-2*n)*n-1),"easeInCubic"===t.easing&&(o=n*n*n),"easeOutCubic"===t.easing&&(o=--n*n*n+1),"easeInOutCubic"===t.easing&&(o=n<.5?4*n*n*n:(n-1)*(2*n-2)*(2*n-2)+1),"easeInQuart"===t.easing&&(o=n*n*n*n),"easeOutQuart"===t.easing&&(o=1- --n*n*n*n),"easeInOutQuart"===t.easing&&(o=n<.5?8*n*n*n*n:1-8*--n*n*n*n),"easeInQuint"===t.easing&&(o=n*n*n*n*n),"easeOutQuint"===t.easing&&(o=1+--n*n*n*n*n),"easeInOutQuint"===t.easing&&(o=n<.5?16*n*n*n*n*n:1+16*--n*n*n*n*n),t.customEasing&&(o=t.customEasing(n)),o||n),C.scrollTo(0,Math.floor(f)),b(f,g)||(A=C.requestAnimationFrame(O),d=e)};0===C.pageYOffset&&C.scrollTo(0,0),m=i,h=c,u||history.pushState&&h.updateURL&&history.pushState({smoothScroll:JSON.stringify(h),anchor:m.id},document.title,m===document.documentElement?"#top":"#"+m.id),"matchMedia"in C&&C.matchMedia("(prefers-reduced-motion)").matches?C.scrollTo(0,Math.floor(g)):(Q("scrollStart",c,i,s),w.cancelScroll(!0),C.requestAnimationFrame(O))}};var t=function(e){if(!e.defaultPrevented&&!(0!==e.button||e.metaKey||e.ctrlKey||e.shiftKey)&&"closest"in e.target&&(a=e.target.closest(o))&&"a"===a.tagName.toLowerCase()&&!e.target.closest(M.ignore)&&a.hostname===C.location.hostname&&a.pathname===C.location.pathname&&/#/.test(a.href)){var t,n=r(a.hash);if("#"===n){if(!M.topOnEmptyHash)return;t=document.documentElement}else t=document.querySelector(n);(t=t||"#top"!==n?t:document.documentElement)&&(e.preventDefault(),(function(e){if(history.replaceState&&e.updateURL&&!history.state){var t=C.location.hash;t=t||"",history.replaceState({smoothScroll:JSON.stringify(e),anchor:t||C.pageYOffset},document.title,t||C.location.href)}})(M),w.animateScroll(t,a))}},n=function(e){if(null!==history.state&&history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(M)){var t=history.state.anchor;"string"==typeof t&&t&&!(t=document.querySelector(r(history.state.anchor)))||w.animateScroll(t,null,{updateURL:!1})}};w.destroy=function(){M&&(document.removeEventListener("click",t,!1),C.removeEventListener("popstate",n,!1),w.cancelScroll(),A=I=a=M=null)};return (function(){if(!("querySelector"in document&&"addEventListener"in C&&"requestAnimationFrame"in C&&"closest"in C.Element.prototype))throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";w.destroy(),M=H(L,e||{}),I=M.header?document.querySelector(M.header):null,document.addEventListener("click",t,!1),M.updateURL&&M.popstate&&C.addEventListener("popstate",n,!1)})(),w}}));
\ No newline at end of file
diff --git a/dist/smooth-scroll.polyfills.js b/dist/smooth-scroll.polyfills.js
index 631973d..9907746 100755
--- a/dist/smooth-scroll.polyfills.js
+++ b/dist/smooth-scroll.polyfills.js
@@ -1,5 +1,5 @@
 /*!
- * smooth-scroll v16.0.3
+ * smooth-scroll v16.1.0
  * Animate scrolling to anchor links
  * (c) 2019 Chris Ferdinandi
  * MIT License
@@ -160,7 +160,7 @@ if (window.Element && !Element.prototype.closest) {
 	 * Check to see if user prefers reduced motion
 	 * @param  {Object} settings Script settings
 	 */
-	var reduceMotion = function (settings) {
+	var reduceMotion = function () {
 		if ('matchMedia' in window && window.matchMedia('(prefers-reduced-motion)').matches) {
 			return true;
 		}
@@ -556,6 +556,12 @@ if (window.Element && !Element.prototype.closest) {
 			// Update the URL
 			updateURL(anchor, isNum, _settings);
 
+			// If the user prefers reduced motion, jump to location
+			if (reduceMotion()) {
+				window.scrollTo(0, Math.floor(endLocation));
+				return;
+			}
+
 			// Emit a custom event
 			emitEvent('scrollStart', _settings, anchor, toggle);
 
@@ -570,9 +576,6 @@ if (window.Element && !Element.prototype.closest) {
 		 */
 		var clickHandler = function (event) {
 
-			// Don't run if the user prefers reduced motion
-			if (reduceMotion(settings)) return;
-
 			// Don't run if event was canceled but still bubbled up
 			// By @mgreter - https://github.com/cferdinandi/smooth-scroll/pull/462/
 			if (event.defaultPrevented) return;
@@ -582,7 +585,7 @@ if (window.Element && !Element.prototype.closest) {
 
 			// Check if event.target has closest() method
 			// By @totegi - https://github.com/cferdinandi/smooth-scroll/pull/401/
-			if(!('closest' in event.target))return;
+			if (!('closest' in event.target)) return;
 
 			// Check if a smooth scroll link was clicked
 			toggle = event.target.closest(selector);
diff --git a/dist/smooth-scroll.polyfills.min.js b/dist/smooth-scroll.polyfills.min.js
index a6a2040..debe3d0 100755
--- a/dist/smooth-scroll.polyfills.min.js
+++ b/dist/smooth-scroll.polyfills.min.js
@@ -1,2 +1,2 @@
-/*! smooth-scroll v16.0.3 | (c) 2019 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
-window.Element&&!Element.prototype.closest&&(Element.prototype.closest=function(e){var t,n=(this.document||this.ownerDocument).querySelectorAll(e),o=this;do{for(t=n.length;0<=--t&&n.item(t)!==o;);}while(t<0&&(o=o.parentElement));return o}),(function(){if("function"==typeof window.CustomEvent)return;function e(e,t){t=t||{bubbles:!1,cancelable:!1,detail:void 0};var n=document.createEvent("CustomEvent");return n.initCustomEvent(e,t.bubbles,t.cancelable,t.detail),n}e.prototype=window.Event.prototype,window.CustomEvent=e})(),(function(){for(var r=0,e=["ms","moz","webkit","o"],t=0;t<e.length&&!window.requestAnimationFrame;++t)window.requestAnimationFrame=window[e[t]+"RequestAnimationFrame"],window.cancelAnimationFrame=window[e[t]+"CancelAnimationFrame"]||window[e[t]+"CancelRequestAnimationFrame"];window.requestAnimationFrame||(window.requestAnimationFrame=function(e,t){var n=(new Date).getTime(),o=Math.max(0,16-(n-r)),a=window.setTimeout((function(){e(n+o)}),o);return r=n+o,a}),window.cancelAnimationFrame||(window.cancelAnimationFrame=function(e){clearTimeout(e)})})(),(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(M){"use strict";var I={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,speedAsDuration:!1,durationMax:null,durationMin:null,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},F=function(){var n={};return Array.prototype.forEach.call(arguments,(function(e){for(var t in e){if(!e.hasOwnProperty(t))return;n[t]=e[t]}})),n},r=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,a=-1,r="",i=n.charCodeAt(0);++a<o;){if(0===(t=n.charCodeAt(a)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");1<=t&&t<=31||127==t||0===a&&48<=t&&t<=57||1===a&&48<=t&&t<=57&&45===i?r+="\\"+t.toString(16)+" ":r+=128<=t||45===t||95===t||48<=t&&t<=57||65<=t&&t<=90||97<=t&&t<=122?n.charAt(a):"\\"+n.charAt(a)}return"#"+r},L=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},x=function(e){return e?(t=e,parseInt(M.getComputedStyle(t).height,10)+e.offsetTop):0;var t},H=function(e,t,n,o){if(t.emitEvents&&"function"==typeof M.CustomEvent){var a=new CustomEvent(e,{bubbles:!0,detail:{anchor:n,toggle:o}});document.dispatchEvent(a)}};return function(o,e){var A,a,O,C,q={};q.cancelScroll=function(e){cancelAnimationFrame(C),C=null,e||H("scrollCancel",A)},q.animateScroll=function(i,c,e){q.cancelScroll();var s=F(A||I,e||{}),u="[object Number]"===Object.prototype.toString.call(i),t=u||!i.tagName?null:i;if(u||t){var l=M.pageYOffset;s.header&&!O&&(O=document.querySelector(s.header));var n,o,a,m,r,d,f,h,p=x(O),g=u?i:(function(e,t,n,o){var a=0;if(e.offsetParent)for(;a+=e.offsetTop,e=e.offsetParent;);return a=Math.max(a-t-n,0),o&&(a=Math.min(a,L()-M.innerHeight)),a})(t,p,parseInt("function"==typeof s.offset?s.offset(i,c):s.offset,10),s.clip),y=g-l,v=L(),w=0,S=(n=y,a=(o=s).speedAsDuration?o.speed:Math.abs(n/1e3*o.speed),o.durationMax&&a>o.durationMax?o.durationMax:o.durationMin&&a<o.durationMin?o.durationMin:parseInt(a,10)),E=function(e,t){var n,o,a,r=M.pageYOffset;if(e==t||r==t||(l<t&&M.innerHeight+r)>=v)return q.cancelScroll(!0),o=t,a=u,0===(n=i)&&document.body.focus(),a||(n.focus(),document.activeElement!==n&&(n.setAttribute("tabindex","-1"),n.focus(),n.style.outline="none"),M.scrollTo(0,o)),H("scrollStop",s,i,c),!(C=m=null)},b=function(e){var t,n,o;m||(m=e),w+=e-m,d=l+y*(n=r=1<(r=0===S?0:w/S)?1:r,"easeInQuad"===(t=s).easing&&(o=n*n),"easeOutQuad"===t.easing&&(o=n*(2-n)),"easeInOutQuad"===t.easing&&(o=n<.5?2*n*n:(4-2*n)*n-1),"easeInCubic"===t.easing&&(o=n*n*n),"easeOutCubic"===t.easing&&(o=--n*n*n+1),"easeInOutCubic"===t.easing&&(o=n<.5?4*n*n*n:(n-1)*(2*n-2)*(2*n-2)+1),"easeInQuart"===t.easing&&(o=n*n*n*n),"easeOutQuart"===t.easing&&(o=1- --n*n*n*n),"easeInOutQuart"===t.easing&&(o=n<.5?8*n*n*n*n:1-8*--n*n*n*n),"easeInQuint"===t.easing&&(o=n*n*n*n*n),"easeOutQuint"===t.easing&&(o=1+--n*n*n*n*n),"easeInOutQuint"===t.easing&&(o=n<.5?16*n*n*n*n*n:1+16*--n*n*n*n*n),t.customEasing&&(o=t.customEasing(n)),o||n),M.scrollTo(0,Math.floor(d)),E(d,g)||(C=M.requestAnimationFrame(b),m=e)};0===M.pageYOffset&&M.scrollTo(0,0),f=i,h=s,u||history.pushState&&h.updateURL&&history.pushState({smoothScroll:JSON.stringify(h),anchor:f.id},document.title,f===document.documentElement?"#top":"#"+f.id),H("scrollStart",s,i,c),q.cancelScroll(!0),M.requestAnimationFrame(b)}};var t=function(e){if(!("matchMedia"in M&&M.matchMedia("(prefers-reduced-motion)").matches)&&!e.defaultPrevented&&!(0!==e.button||e.metaKey||e.ctrlKey||e.shiftKey)&&"closest"in e.target&&(a=e.target.closest(o))&&"a"===a.tagName.toLowerCase()&&!e.target.closest(A.ignore)&&a.hostname===M.location.hostname&&a.pathname===M.location.pathname&&/#/.test(a.href)){var t,n=r(a.hash);if("#"===n){if(!A.topOnEmptyHash)return;t=document.documentElement}else t=document.querySelector(n);(t=t||"#top"!==n?t:document.documentElement)&&(e.preventDefault(),(function(e){if(history.replaceState&&e.updateURL&&!history.state){var t=M.location.hash;t=t||"",history.replaceState({smoothScroll:JSON.stringify(e),anchor:t||M.pageYOffset},document.title,t||M.location.href)}})(A),q.animateScroll(t,a))}},n=function(e){if(null!==history.state&&history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(A)){var t=history.state.anchor;"string"==typeof t&&t&&!(t=document.querySelector(r(history.state.anchor)))||q.animateScroll(t,null,{updateURL:!1})}};q.destroy=function(){A&&(document.removeEventListener("click",t,!1),M.removeEventListener("popstate",n,!1),q.cancelScroll(),C=O=a=A=null)};return (function(){if(!("querySelector"in document&&"addEventListener"in M&&"requestAnimationFrame"in M&&"closest"in M.Element.prototype))throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";q.destroy(),A=F(I,e||{}),O=A.header?document.querySelector(A.header):null,document.addEventListener("click",t,!1),A.updateURL&&A.popstate&&M.addEventListener("popstate",n,!1)})(),q}}));
\ No newline at end of file
+/*! smooth-scroll v16.1.0 | (c) 2019 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
+window.Element&&!Element.prototype.closest&&(Element.prototype.closest=function(e){var t,n=(this.document||this.ownerDocument).querySelectorAll(e),o=this;do{for(t=n.length;0<=--t&&n.item(t)!==o;);}while(t<0&&(o=o.parentElement));return o}),(function(){if("function"==typeof window.CustomEvent)return;function e(e,t){t=t||{bubbles:!1,cancelable:!1,detail:void 0};var n=document.createEvent("CustomEvent");return n.initCustomEvent(e,t.bubbles,t.cancelable,t.detail),n}e.prototype=window.Event.prototype,window.CustomEvent=e})(),(function(){for(var r=0,e=["ms","moz","webkit","o"],t=0;t<e.length&&!window.requestAnimationFrame;++t)window.requestAnimationFrame=window[e[t]+"RequestAnimationFrame"],window.cancelAnimationFrame=window[e[t]+"CancelAnimationFrame"]||window[e[t]+"CancelRequestAnimationFrame"];window.requestAnimationFrame||(window.requestAnimationFrame=function(e,t){var n=(new Date).getTime(),o=Math.max(0,16-(n-r)),a=window.setTimeout((function(){e(n+o)}),o);return r=n+o,a}),window.cancelAnimationFrame||(window.cancelAnimationFrame=function(e){clearTimeout(e)})})(),(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(q){"use strict";var I={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,speedAsDuration:!1,durationMax:null,durationMin:null,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},F=function(){var n={};return Array.prototype.forEach.call(arguments,(function(e){for(var t in e){if(!e.hasOwnProperty(t))return;n[t]=e[t]}})),n},r=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,a=-1,r="",i=n.charCodeAt(0);++a<o;){if(0===(t=n.charCodeAt(a)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");1<=t&&t<=31||127==t||0===a&&48<=t&&t<=57||1===a&&48<=t&&t<=57&&45===i?r+="\\"+t.toString(16)+" ":r+=128<=t||45===t||95===t||48<=t&&t<=57||65<=t&&t<=90||97<=t&&t<=122?n.charAt(a):"\\"+n.charAt(a)}return"#"+r},L=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},x=function(e){return e?(t=e,parseInt(q.getComputedStyle(t).height,10)+e.offsetTop):0;var t},H=function(e,t,n,o){if(t.emitEvents&&"function"==typeof q.CustomEvent){var a=new CustomEvent(e,{bubbles:!0,detail:{anchor:n,toggle:o}});document.dispatchEvent(a)}};return function(o,e){var A,a,O,C,M={};M.cancelScroll=function(e){cancelAnimationFrame(C),C=null,e||H("scrollCancel",A)},M.animateScroll=function(i,c,e){M.cancelScroll();var s=F(A||I,e||{}),u="[object Number]"===Object.prototype.toString.call(i),t=u||!i.tagName?null:i;if(u||t){var l=q.pageYOffset;s.header&&!O&&(O=document.querySelector(s.header));var n,o,a,m,r,d,f,h,p=x(O),g=u?i:(function(e,t,n,o){var a=0;if(e.offsetParent)for(;a+=e.offsetTop,e=e.offsetParent;);return a=Math.max(a-t-n,0),o&&(a=Math.min(a,L()-q.innerHeight)),a})(t,p,parseInt("function"==typeof s.offset?s.offset(i,c):s.offset,10),s.clip),y=g-l,v=L(),w=0,S=(n=y,a=(o=s).speedAsDuration?o.speed:Math.abs(n/1e3*o.speed),o.durationMax&&a>o.durationMax?o.durationMax:o.durationMin&&a<o.durationMin?o.durationMin:parseInt(a,10)),E=function(e,t){var n,o,a,r=q.pageYOffset;if(e==t||r==t||(l<t&&q.innerHeight+r)>=v)return M.cancelScroll(!0),o=t,a=u,0===(n=i)&&document.body.focus(),a||(n.focus(),document.activeElement!==n&&(n.setAttribute("tabindex","-1"),n.focus(),n.style.outline="none"),q.scrollTo(0,o)),H("scrollStop",s,i,c),!(C=m=null)},b=function(e){var t,n,o;m||(m=e),w+=e-m,d=l+y*(n=r=1<(r=0===S?0:w/S)?1:r,"easeInQuad"===(t=s).easing&&(o=n*n),"easeOutQuad"===t.easing&&(o=n*(2-n)),"easeInOutQuad"===t.easing&&(o=n<.5?2*n*n:(4-2*n)*n-1),"easeInCubic"===t.easing&&(o=n*n*n),"easeOutCubic"===t.easing&&(o=--n*n*n+1),"easeInOutCubic"===t.easing&&(o=n<.5?4*n*n*n:(n-1)*(2*n-2)*(2*n-2)+1),"easeInQuart"===t.easing&&(o=n*n*n*n),"easeOutQuart"===t.easing&&(o=1- --n*n*n*n),"easeInOutQuart"===t.easing&&(o=n<.5?8*n*n*n*n:1-8*--n*n*n*n),"easeInQuint"===t.easing&&(o=n*n*n*n*n),"easeOutQuint"===t.easing&&(o=1+--n*n*n*n*n),"easeInOutQuint"===t.easing&&(o=n<.5?16*n*n*n*n*n:1+16*--n*n*n*n*n),t.customEasing&&(o=t.customEasing(n)),o||n),q.scrollTo(0,Math.floor(d)),E(d,g)||(C=q.requestAnimationFrame(b),m=e)};0===q.pageYOffset&&q.scrollTo(0,0),f=i,h=s,u||history.pushState&&h.updateURL&&history.pushState({smoothScroll:JSON.stringify(h),anchor:f.id},document.title,f===document.documentElement?"#top":"#"+f.id),"matchMedia"in q&&q.matchMedia("(prefers-reduced-motion)").matches?q.scrollTo(0,Math.floor(g)):(H("scrollStart",s,i,c),M.cancelScroll(!0),q.requestAnimationFrame(b))}};var t=function(e){if(!e.defaultPrevented&&!(0!==e.button||e.metaKey||e.ctrlKey||e.shiftKey)&&"closest"in e.target&&(a=e.target.closest(o))&&"a"===a.tagName.toLowerCase()&&!e.target.closest(A.ignore)&&a.hostname===q.location.hostname&&a.pathname===q.location.pathname&&/#/.test(a.href)){var t,n=r(a.hash);if("#"===n){if(!A.topOnEmptyHash)return;t=document.documentElement}else t=document.querySelector(n);(t=t||"#top"!==n?t:document.documentElement)&&(e.preventDefault(),(function(e){if(history.replaceState&&e.updateURL&&!history.state){var t=q.location.hash;t=t||"",history.replaceState({smoothScroll:JSON.stringify(e),anchor:t||q.pageYOffset},document.title,t||q.location.href)}})(A),M.animateScroll(t,a))}},n=function(e){if(null!==history.state&&history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(A)){var t=history.state.anchor;"string"==typeof t&&t&&!(t=document.querySelector(r(history.state.anchor)))||M.animateScroll(t,null,{updateURL:!1})}};M.destroy=function(){A&&(document.removeEventListener("click",t,!1),q.removeEventListener("popstate",n,!1),M.cancelScroll(),C=O=a=A=null)};return (function(){if(!("querySelector"in document&&"addEventListener"in q&&"requestAnimationFrame"in q&&"closest"in q.Element.prototype))throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";M.destroy(),A=F(I,e||{}),O=A.header?document.querySelector(A.header):null,document.addEventListener("click",t,!1),A.updateURL&&A.popstate&&q.addEventListener("popstate",n,!1)})(),M}}));
\ No newline at end of file
diff --git a/package.json b/package.json
index 08d0348..08e5c80 100755
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
 	"name": "smooth-scroll",
-	"version": "16.0.3",
+	"version": "16.1.0",
 	"description": "Animate scrolling to anchor links",
 	"main": "./dist/smooth-scroll.polyfills.min.js",
 	"author": {
diff --git a/src/js/smooth-scroll/smooth-scroll.js b/src/js/smooth-scroll/smooth-scroll.js
index 734984d..49c3b63 100755
--- a/src/js/smooth-scroll/smooth-scroll.js
+++ b/src/js/smooth-scroll/smooth-scroll.js
@@ -82,7 +82,7 @@
 	 * Check to see if user prefers reduced motion
 	 * @param  {Object} settings Script settings
 	 */
-	var reduceMotion = function (settings) {
+	var reduceMotion = function () {
 		if ('matchMedia' in window && window.matchMedia('(prefers-reduced-motion)').matches) {
 			return true;
 		}
@@ -478,6 +478,12 @@
 			// Update the URL
 			updateURL(anchor, isNum, _settings);
 
+			// If the user prefers reduced motion, jump to location
+			if (reduceMotion()) {
+				window.scrollTo(0, Math.floor(endLocation));
+				return;
+			}
+
 			// Emit a custom event
 			emitEvent('scrollStart', _settings, anchor, toggle);
 
@@ -492,9 +498,6 @@
 		 */
 		var clickHandler = function (event) {
 
-			// Don't run if the user prefers reduced motion
-			if (reduceMotion(settings)) return;
-
 			// Don't run if event was canceled but still bubbled up
 			// By @mgreter - https://github.com/cferdinandi/smooth-scroll/pull/462/
 			if (event.defaultPrevented) return;
@@ -504,7 +507,7 @@
 
 			// Check if event.target has closest() method
 			// By @totegi - https://github.com/cferdinandi/smooth-scroll/pull/401/
-			if(!('closest' in event.target))return;
+			if (!('closest' in event.target)) return;
 
 			// Check if a smooth scroll link was clicked
 			toggle = event.target.closest(selector);

From ce21c712c84821ddcfff8b5cb8a69c2da88725c9 Mon Sep 17 00:00:00 2001
From: cferdinandi <chris@gomakethings.com>
Date: Sun, 8 Dec 2019 21:58:55 -0500
Subject: [PATCH 41/51] Fixed special characters bug

---
 dist/smooth-scroll.js                 | 10 ++++++++--
 dist/smooth-scroll.min.js             |  4 ++--
 dist/smooth-scroll.polyfills.js       | 10 ++++++++--
 dist/smooth-scroll.polyfills.min.js   |  4 ++--
 index.html                            | 19 ++++++++++++++++++-
 package.json                          |  2 +-
 src/copy/index.html                   | 19 ++++++++++++++++++-
 src/js/smooth-scroll/smooth-scroll.js |  8 +++++++-
 8 files changed, 64 insertions(+), 12 deletions(-)

diff --git a/dist/smooth-scroll.js b/dist/smooth-scroll.js
index 21fbd11..52c7a35 100755
--- a/dist/smooth-scroll.js
+++ b/dist/smooth-scroll.js
@@ -1,5 +1,5 @@
 /*!
- * smooth-scroll v16.1.0
+ * smooth-scroll v16.1.1
  * Animate scrolling to anchor links
  * (c) 2019 Chris Ferdinandi
  * MIT License
@@ -525,7 +525,13 @@
 			if (toggle.hostname !== window.location.hostname || toggle.pathname !== window.location.pathname || !/#/.test(toggle.href)) return;
 
 			// Get an escaped version of the hash
-			var hash = escapeCharacters(toggle.hash);
+			var hash;
+			try {
+				hash = escapeCharacters(decodeURIComponent(toggle.hash));
+			} catch(e) {
+				hash = escapeCharacters(toggle.hash);
+			}
+			console.log(hash);
 
 			// Get the anchored element
 			var anchor;
diff --git a/dist/smooth-scroll.min.js b/dist/smooth-scroll.min.js
index b1d6908..eb6ef13 100755
--- a/dist/smooth-scroll.min.js
+++ b/dist/smooth-scroll.min.js
@@ -1,2 +1,2 @@
-/*! smooth-scroll v16.1.0 | (c) 2019 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
-!(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(C){"use strict";var L={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,speedAsDuration:!1,durationMax:null,durationMin:null,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},H=function(){var n={};return Array.prototype.forEach.call(arguments,(function(e){for(var t in e){if(!e.hasOwnProperty(t))return;n[t]=e[t]}})),n},r=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,a=-1,r="",i=n.charCodeAt(0);++a<o;){if(0===(t=n.charCodeAt(a)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");1<=t&&t<=31||127==t||0===a&&48<=t&&t<=57||1===a&&48<=t&&t<=57&&45===i?r+="\\"+t.toString(16)+" ":r+=128<=t||45===t||95===t||48<=t&&t<=57||65<=t&&t<=90||97<=t&&t<=122?n.charAt(a):"\\"+n.charAt(a)}return"#"+r},q=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},x=function(e){return e?(t=e,parseInt(C.getComputedStyle(t).height,10)+e.offsetTop):0;var t},Q=function(e,t,n,o){if(t.emitEvents&&"function"==typeof C.CustomEvent){var a=new CustomEvent(e,{bubbles:!0,detail:{anchor:n,toggle:o}});document.dispatchEvent(a)}};return function(o,e){var M,a,I,A,w={};w.cancelScroll=function(e){cancelAnimationFrame(A),A=null,e||Q("scrollCancel",M)},w.animateScroll=function(i,s,e){w.cancelScroll();var c=H(M||L,e||{}),u="[object Number]"===Object.prototype.toString.call(i),t=u||!i.tagName?null:i;if(u||t){var l=C.pageYOffset;c.header&&!I&&(I=document.querySelector(c.header));var n,o,a,d,r,f,m,h,p=x(I),g=u?i:(function(e,t,n,o){var a=0;if(e.offsetParent)for(;a+=e.offsetTop,e=e.offsetParent;);return a=Math.max(a-t-n,0),o&&(a=Math.min(a,q()-C.innerHeight)),a})(t,p,parseInt("function"==typeof c.offset?c.offset(i,s):c.offset,10),c.clip),y=g-l,v=q(),S=0,E=(n=y,a=(o=c).speedAsDuration?o.speed:Math.abs(n/1e3*o.speed),o.durationMax&&a>o.durationMax?o.durationMax:o.durationMin&&a<o.durationMin?o.durationMin:parseInt(a,10)),b=function(e,t){var n,o,a,r=C.pageYOffset;if(e==t||r==t||(l<t&&C.innerHeight+r)>=v)return w.cancelScroll(!0),o=t,a=u,0===(n=i)&&document.body.focus(),a||(n.focus(),document.activeElement!==n&&(n.setAttribute("tabindex","-1"),n.focus(),n.style.outline="none"),C.scrollTo(0,o)),Q("scrollStop",c,i,s),!(A=d=null)},O=function(e){var t,n,o;d||(d=e),S+=e-d,f=l+y*(n=r=1<(r=0===E?0:S/E)?1:r,"easeInQuad"===(t=c).easing&&(o=n*n),"easeOutQuad"===t.easing&&(o=n*(2-n)),"easeInOutQuad"===t.easing&&(o=n<.5?2*n*n:(4-2*n)*n-1),"easeInCubic"===t.easing&&(o=n*n*n),"easeOutCubic"===t.easing&&(o=--n*n*n+1),"easeInOutCubic"===t.easing&&(o=n<.5?4*n*n*n:(n-1)*(2*n-2)*(2*n-2)+1),"easeInQuart"===t.easing&&(o=n*n*n*n),"easeOutQuart"===t.easing&&(o=1- --n*n*n*n),"easeInOutQuart"===t.easing&&(o=n<.5?8*n*n*n*n:1-8*--n*n*n*n),"easeInQuint"===t.easing&&(o=n*n*n*n*n),"easeOutQuint"===t.easing&&(o=1+--n*n*n*n*n),"easeInOutQuint"===t.easing&&(o=n<.5?16*n*n*n*n*n:1+16*--n*n*n*n*n),t.customEasing&&(o=t.customEasing(n)),o||n),C.scrollTo(0,Math.floor(f)),b(f,g)||(A=C.requestAnimationFrame(O),d=e)};0===C.pageYOffset&&C.scrollTo(0,0),m=i,h=c,u||history.pushState&&h.updateURL&&history.pushState({smoothScroll:JSON.stringify(h),anchor:m.id},document.title,m===document.documentElement?"#top":"#"+m.id),"matchMedia"in C&&C.matchMedia("(prefers-reduced-motion)").matches?C.scrollTo(0,Math.floor(g)):(Q("scrollStart",c,i,s),w.cancelScroll(!0),C.requestAnimationFrame(O))}};var t=function(e){if(!e.defaultPrevented&&!(0!==e.button||e.metaKey||e.ctrlKey||e.shiftKey)&&"closest"in e.target&&(a=e.target.closest(o))&&"a"===a.tagName.toLowerCase()&&!e.target.closest(M.ignore)&&a.hostname===C.location.hostname&&a.pathname===C.location.pathname&&/#/.test(a.href)){var t,n=r(a.hash);if("#"===n){if(!M.topOnEmptyHash)return;t=document.documentElement}else t=document.querySelector(n);(t=t||"#top"!==n?t:document.documentElement)&&(e.preventDefault(),(function(e){if(history.replaceState&&e.updateURL&&!history.state){var t=C.location.hash;t=t||"",history.replaceState({smoothScroll:JSON.stringify(e),anchor:t||C.pageYOffset},document.title,t||C.location.href)}})(M),w.animateScroll(t,a))}},n=function(e){if(null!==history.state&&history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(M)){var t=history.state.anchor;"string"==typeof t&&t&&!(t=document.querySelector(r(history.state.anchor)))||w.animateScroll(t,null,{updateURL:!1})}};w.destroy=function(){M&&(document.removeEventListener("click",t,!1),C.removeEventListener("popstate",n,!1),w.cancelScroll(),A=I=a=M=null)};return (function(){if(!("querySelector"in document&&"addEventListener"in C&&"requestAnimationFrame"in C&&"closest"in C.Element.prototype))throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";w.destroy(),M=H(L,e||{}),I=M.header?document.querySelector(M.header):null,document.addEventListener("click",t,!1),M.updateURL&&M.popstate&&C.addEventListener("popstate",n,!1)})(),w}}));
\ No newline at end of file
+/*! smooth-scroll v16.1.1 | (c) 2019 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
+!(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(w){"use strict";var L={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,speedAsDuration:!1,durationMax:null,durationMin:null,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},H=function(){var n={};return Array.prototype.forEach.call(arguments,(function(e){for(var t in e){if(!e.hasOwnProperty(t))return;n[t]=e[t]}})),n},r=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,a=-1,r="",i=n.charCodeAt(0);++a<o;){if(0===(t=n.charCodeAt(a)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");1<=t&&t<=31||127==t||0===a&&48<=t&&t<=57||1===a&&48<=t&&t<=57&&45===i?r+="\\"+t.toString(16)+" ":r+=128<=t||45===t||95===t||48<=t&&t<=57||65<=t&&t<=90||97<=t&&t<=122?n.charAt(a):"\\"+n.charAt(a)}return"#"+r},q=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},x=function(e){return e?(t=e,parseInt(w.getComputedStyle(t).height,10)+e.offsetTop):0;var t},Q=function(e,t,n,o){if(t.emitEvents&&"function"==typeof w.CustomEvent){var a=new CustomEvent(e,{bubbles:!0,detail:{anchor:n,toggle:o}});document.dispatchEvent(a)}};return function(o,e){var I,a,M,A,C={};C.cancelScroll=function(e){cancelAnimationFrame(A),A=null,e||Q("scrollCancel",I)},C.animateScroll=function(i,s,e){C.cancelScroll();var c=H(I||L,e||{}),u="[object Number]"===Object.prototype.toString.call(i),t=u||!i.tagName?null:i;if(u||t){var l=w.pageYOffset;c.header&&!M&&(M=document.querySelector(c.header));var n,o,a,d,r,f,m,h,p=x(M),g=u?i:(function(e,t,n,o){var a=0;if(e.offsetParent)for(;a+=e.offsetTop,e=e.offsetParent;);return a=Math.max(a-t-n,0),o&&(a=Math.min(a,q()-w.innerHeight)),a})(t,p,parseInt("function"==typeof c.offset?c.offset(i,s):c.offset,10),c.clip),y=g-l,v=q(),S=0,E=(n=y,a=(o=c).speedAsDuration?o.speed:Math.abs(n/1e3*o.speed),o.durationMax&&a>o.durationMax?o.durationMax:o.durationMin&&a<o.durationMin?o.durationMin:parseInt(a,10)),b=function(e,t){var n,o,a,r=w.pageYOffset;if(e==t||r==t||(l<t&&w.innerHeight+r)>=v)return C.cancelScroll(!0),o=t,a=u,0===(n=i)&&document.body.focus(),a||(n.focus(),document.activeElement!==n&&(n.setAttribute("tabindex","-1"),n.focus(),n.style.outline="none"),w.scrollTo(0,o)),Q("scrollStop",c,i,s),!(A=d=null)},O=function(e){var t,n,o;d||(d=e),S+=e-d,f=l+y*(n=r=1<(r=0===E?0:S/E)?1:r,"easeInQuad"===(t=c).easing&&(o=n*n),"easeOutQuad"===t.easing&&(o=n*(2-n)),"easeInOutQuad"===t.easing&&(o=n<.5?2*n*n:(4-2*n)*n-1),"easeInCubic"===t.easing&&(o=n*n*n),"easeOutCubic"===t.easing&&(o=--n*n*n+1),"easeInOutCubic"===t.easing&&(o=n<.5?4*n*n*n:(n-1)*(2*n-2)*(2*n-2)+1),"easeInQuart"===t.easing&&(o=n*n*n*n),"easeOutQuart"===t.easing&&(o=1- --n*n*n*n),"easeInOutQuart"===t.easing&&(o=n<.5?8*n*n*n*n:1-8*--n*n*n*n),"easeInQuint"===t.easing&&(o=n*n*n*n*n),"easeOutQuint"===t.easing&&(o=1+--n*n*n*n*n),"easeInOutQuint"===t.easing&&(o=n<.5?16*n*n*n*n*n:1+16*--n*n*n*n*n),t.customEasing&&(o=t.customEasing(n)),o||n),w.scrollTo(0,Math.floor(f)),b(f,g)||(A=w.requestAnimationFrame(O),d=e)};0===w.pageYOffset&&w.scrollTo(0,0),m=i,h=c,u||history.pushState&&h.updateURL&&history.pushState({smoothScroll:JSON.stringify(h),anchor:m.id},document.title,m===document.documentElement?"#top":"#"+m.id),"matchMedia"in w&&w.matchMedia("(prefers-reduced-motion)").matches?w.scrollTo(0,Math.floor(g)):(Q("scrollStart",c,i,s),C.cancelScroll(!0),w.requestAnimationFrame(O))}};var t=function(e){if(!e.defaultPrevented&&!(0!==e.button||e.metaKey||e.ctrlKey||e.shiftKey)&&"closest"in e.target&&(a=e.target.closest(o))&&"a"===a.tagName.toLowerCase()&&!e.target.closest(I.ignore)&&a.hostname===w.location.hostname&&a.pathname===w.location.pathname&&/#/.test(a.href)){var t,n;try{t=r(decodeURIComponent(a.hash))}catch(e){t=r(a.hash)}if(console.log(t),"#"===t){if(!I.topOnEmptyHash)return;n=document.documentElement}else n=document.querySelector(t);(n=n||"#top"!==t?n:document.documentElement)&&(e.preventDefault(),(function(e){if(history.replaceState&&e.updateURL&&!history.state){var t=w.location.hash;t=t||"",history.replaceState({smoothScroll:JSON.stringify(e),anchor:t||w.pageYOffset},document.title,t||w.location.href)}})(I),C.animateScroll(n,a))}},n=function(e){if(null!==history.state&&history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(I)){var t=history.state.anchor;"string"==typeof t&&t&&!(t=document.querySelector(r(history.state.anchor)))||C.animateScroll(t,null,{updateURL:!1})}};C.destroy=function(){I&&(document.removeEventListener("click",t,!1),w.removeEventListener("popstate",n,!1),C.cancelScroll(),A=M=a=I=null)};return (function(){if(!("querySelector"in document&&"addEventListener"in w&&"requestAnimationFrame"in w&&"closest"in w.Element.prototype))throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";C.destroy(),I=H(L,e||{}),M=I.header?document.querySelector(I.header):null,document.addEventListener("click",t,!1),I.updateURL&&I.popstate&&w.addEventListener("popstate",n,!1)})(),C}}));
\ No newline at end of file
diff --git a/dist/smooth-scroll.polyfills.js b/dist/smooth-scroll.polyfills.js
index 9907746..ac611f7 100755
--- a/dist/smooth-scroll.polyfills.js
+++ b/dist/smooth-scroll.polyfills.js
@@ -1,5 +1,5 @@
 /*!
- * smooth-scroll v16.1.0
+ * smooth-scroll v16.1.1
  * Animate scrolling to anchor links
  * (c) 2019 Chris Ferdinandi
  * MIT License
@@ -595,7 +595,13 @@ if (window.Element && !Element.prototype.closest) {
 			if (toggle.hostname !== window.location.hostname || toggle.pathname !== window.location.pathname || !/#/.test(toggle.href)) return;
 
 			// Get an escaped version of the hash
-			var hash = escapeCharacters(toggle.hash);
+			var hash;
+			try {
+				hash = escapeCharacters(decodeURIComponent(toggle.hash));
+			} catch(e) {
+				hash = escapeCharacters(toggle.hash);
+			}
+			console.log(hash);
 
 			// Get the anchored element
 			var anchor;
diff --git a/dist/smooth-scroll.polyfills.min.js b/dist/smooth-scroll.polyfills.min.js
index debe3d0..f77e2b1 100755
--- a/dist/smooth-scroll.polyfills.min.js
+++ b/dist/smooth-scroll.polyfills.min.js
@@ -1,2 +1,2 @@
-/*! smooth-scroll v16.1.0 | (c) 2019 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
-window.Element&&!Element.prototype.closest&&(Element.prototype.closest=function(e){var t,n=(this.document||this.ownerDocument).querySelectorAll(e),o=this;do{for(t=n.length;0<=--t&&n.item(t)!==o;);}while(t<0&&(o=o.parentElement));return o}),(function(){if("function"==typeof window.CustomEvent)return;function e(e,t){t=t||{bubbles:!1,cancelable:!1,detail:void 0};var n=document.createEvent("CustomEvent");return n.initCustomEvent(e,t.bubbles,t.cancelable,t.detail),n}e.prototype=window.Event.prototype,window.CustomEvent=e})(),(function(){for(var r=0,e=["ms","moz","webkit","o"],t=0;t<e.length&&!window.requestAnimationFrame;++t)window.requestAnimationFrame=window[e[t]+"RequestAnimationFrame"],window.cancelAnimationFrame=window[e[t]+"CancelAnimationFrame"]||window[e[t]+"CancelRequestAnimationFrame"];window.requestAnimationFrame||(window.requestAnimationFrame=function(e,t){var n=(new Date).getTime(),o=Math.max(0,16-(n-r)),a=window.setTimeout((function(){e(n+o)}),o);return r=n+o,a}),window.cancelAnimationFrame||(window.cancelAnimationFrame=function(e){clearTimeout(e)})})(),(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(q){"use strict";var I={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,speedAsDuration:!1,durationMax:null,durationMin:null,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},F=function(){var n={};return Array.prototype.forEach.call(arguments,(function(e){for(var t in e){if(!e.hasOwnProperty(t))return;n[t]=e[t]}})),n},r=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,a=-1,r="",i=n.charCodeAt(0);++a<o;){if(0===(t=n.charCodeAt(a)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");1<=t&&t<=31||127==t||0===a&&48<=t&&t<=57||1===a&&48<=t&&t<=57&&45===i?r+="\\"+t.toString(16)+" ":r+=128<=t||45===t||95===t||48<=t&&t<=57||65<=t&&t<=90||97<=t&&t<=122?n.charAt(a):"\\"+n.charAt(a)}return"#"+r},L=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},x=function(e){return e?(t=e,parseInt(q.getComputedStyle(t).height,10)+e.offsetTop):0;var t},H=function(e,t,n,o){if(t.emitEvents&&"function"==typeof q.CustomEvent){var a=new CustomEvent(e,{bubbles:!0,detail:{anchor:n,toggle:o}});document.dispatchEvent(a)}};return function(o,e){var A,a,O,C,M={};M.cancelScroll=function(e){cancelAnimationFrame(C),C=null,e||H("scrollCancel",A)},M.animateScroll=function(i,c,e){M.cancelScroll();var s=F(A||I,e||{}),u="[object Number]"===Object.prototype.toString.call(i),t=u||!i.tagName?null:i;if(u||t){var l=q.pageYOffset;s.header&&!O&&(O=document.querySelector(s.header));var n,o,a,m,r,d,f,h,p=x(O),g=u?i:(function(e,t,n,o){var a=0;if(e.offsetParent)for(;a+=e.offsetTop,e=e.offsetParent;);return a=Math.max(a-t-n,0),o&&(a=Math.min(a,L()-q.innerHeight)),a})(t,p,parseInt("function"==typeof s.offset?s.offset(i,c):s.offset,10),s.clip),y=g-l,v=L(),w=0,S=(n=y,a=(o=s).speedAsDuration?o.speed:Math.abs(n/1e3*o.speed),o.durationMax&&a>o.durationMax?o.durationMax:o.durationMin&&a<o.durationMin?o.durationMin:parseInt(a,10)),E=function(e,t){var n,o,a,r=q.pageYOffset;if(e==t||r==t||(l<t&&q.innerHeight+r)>=v)return M.cancelScroll(!0),o=t,a=u,0===(n=i)&&document.body.focus(),a||(n.focus(),document.activeElement!==n&&(n.setAttribute("tabindex","-1"),n.focus(),n.style.outline="none"),q.scrollTo(0,o)),H("scrollStop",s,i,c),!(C=m=null)},b=function(e){var t,n,o;m||(m=e),w+=e-m,d=l+y*(n=r=1<(r=0===S?0:w/S)?1:r,"easeInQuad"===(t=s).easing&&(o=n*n),"easeOutQuad"===t.easing&&(o=n*(2-n)),"easeInOutQuad"===t.easing&&(o=n<.5?2*n*n:(4-2*n)*n-1),"easeInCubic"===t.easing&&(o=n*n*n),"easeOutCubic"===t.easing&&(o=--n*n*n+1),"easeInOutCubic"===t.easing&&(o=n<.5?4*n*n*n:(n-1)*(2*n-2)*(2*n-2)+1),"easeInQuart"===t.easing&&(o=n*n*n*n),"easeOutQuart"===t.easing&&(o=1- --n*n*n*n),"easeInOutQuart"===t.easing&&(o=n<.5?8*n*n*n*n:1-8*--n*n*n*n),"easeInQuint"===t.easing&&(o=n*n*n*n*n),"easeOutQuint"===t.easing&&(o=1+--n*n*n*n*n),"easeInOutQuint"===t.easing&&(o=n<.5?16*n*n*n*n*n:1+16*--n*n*n*n*n),t.customEasing&&(o=t.customEasing(n)),o||n),q.scrollTo(0,Math.floor(d)),E(d,g)||(C=q.requestAnimationFrame(b),m=e)};0===q.pageYOffset&&q.scrollTo(0,0),f=i,h=s,u||history.pushState&&h.updateURL&&history.pushState({smoothScroll:JSON.stringify(h),anchor:f.id},document.title,f===document.documentElement?"#top":"#"+f.id),"matchMedia"in q&&q.matchMedia("(prefers-reduced-motion)").matches?q.scrollTo(0,Math.floor(g)):(H("scrollStart",s,i,c),M.cancelScroll(!0),q.requestAnimationFrame(b))}};var t=function(e){if(!e.defaultPrevented&&!(0!==e.button||e.metaKey||e.ctrlKey||e.shiftKey)&&"closest"in e.target&&(a=e.target.closest(o))&&"a"===a.tagName.toLowerCase()&&!e.target.closest(A.ignore)&&a.hostname===q.location.hostname&&a.pathname===q.location.pathname&&/#/.test(a.href)){var t,n=r(a.hash);if("#"===n){if(!A.topOnEmptyHash)return;t=document.documentElement}else t=document.querySelector(n);(t=t||"#top"!==n?t:document.documentElement)&&(e.preventDefault(),(function(e){if(history.replaceState&&e.updateURL&&!history.state){var t=q.location.hash;t=t||"",history.replaceState({smoothScroll:JSON.stringify(e),anchor:t||q.pageYOffset},document.title,t||q.location.href)}})(A),M.animateScroll(t,a))}},n=function(e){if(null!==history.state&&history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(A)){var t=history.state.anchor;"string"==typeof t&&t&&!(t=document.querySelector(r(history.state.anchor)))||M.animateScroll(t,null,{updateURL:!1})}};M.destroy=function(){A&&(document.removeEventListener("click",t,!1),q.removeEventListener("popstate",n,!1),M.cancelScroll(),C=O=a=A=null)};return (function(){if(!("querySelector"in document&&"addEventListener"in q&&"requestAnimationFrame"in q&&"closest"in q.Element.prototype))throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";M.destroy(),A=F(I,e||{}),O=A.header?document.querySelector(A.header):null,document.addEventListener("click",t,!1),A.updateURL&&A.popstate&&q.addEventListener("popstate",n,!1)})(),M}}));
\ No newline at end of file
+/*! smooth-scroll v16.1.1 | (c) 2019 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
+window.Element&&!Element.prototype.closest&&(Element.prototype.closest=function(e){var t,n=(this.document||this.ownerDocument).querySelectorAll(e),o=this;do{for(t=n.length;0<=--t&&n.item(t)!==o;);}while(t<0&&(o=o.parentElement));return o}),(function(){if("function"==typeof window.CustomEvent)return;function e(e,t){t=t||{bubbles:!1,cancelable:!1,detail:void 0};var n=document.createEvent("CustomEvent");return n.initCustomEvent(e,t.bubbles,t.cancelable,t.detail),n}e.prototype=window.Event.prototype,window.CustomEvent=e})(),(function(){for(var r=0,e=["ms","moz","webkit","o"],t=0;t<e.length&&!window.requestAnimationFrame;++t)window.requestAnimationFrame=window[e[t]+"RequestAnimationFrame"],window.cancelAnimationFrame=window[e[t]+"CancelAnimationFrame"]||window[e[t]+"CancelRequestAnimationFrame"];window.requestAnimationFrame||(window.requestAnimationFrame=function(e,t){var n=(new Date).getTime(),o=Math.max(0,16-(n-r)),a=window.setTimeout((function(){e(n+o)}),o);return r=n+o,a}),window.cancelAnimationFrame||(window.cancelAnimationFrame=function(e){clearTimeout(e)})})(),(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(q){"use strict";var I={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,speedAsDuration:!1,durationMax:null,durationMin:null,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},F=function(){var n={};return Array.prototype.forEach.call(arguments,(function(e){for(var t in e){if(!e.hasOwnProperty(t))return;n[t]=e[t]}})),n},r=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,a=-1,r="",i=n.charCodeAt(0);++a<o;){if(0===(t=n.charCodeAt(a)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");1<=t&&t<=31||127==t||0===a&&48<=t&&t<=57||1===a&&48<=t&&t<=57&&45===i?r+="\\"+t.toString(16)+" ":r+=128<=t||45===t||95===t||48<=t&&t<=57||65<=t&&t<=90||97<=t&&t<=122?n.charAt(a):"\\"+n.charAt(a)}return"#"+r},L=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},x=function(e){return e?(t=e,parseInt(q.getComputedStyle(t).height,10)+e.offsetTop):0;var t},H=function(e,t,n,o){if(t.emitEvents&&"function"==typeof q.CustomEvent){var a=new CustomEvent(e,{bubbles:!0,detail:{anchor:n,toggle:o}});document.dispatchEvent(a)}};return function(o,e){var A,a,O,C,M={};M.cancelScroll=function(e){cancelAnimationFrame(C),C=null,e||H("scrollCancel",A)},M.animateScroll=function(i,c,e){M.cancelScroll();var s=F(A||I,e||{}),u="[object Number]"===Object.prototype.toString.call(i),t=u||!i.tagName?null:i;if(u||t){var l=q.pageYOffset;s.header&&!O&&(O=document.querySelector(s.header));var n,o,a,m,r,d,f,h,p=x(O),g=u?i:(function(e,t,n,o){var a=0;if(e.offsetParent)for(;a+=e.offsetTop,e=e.offsetParent;);return a=Math.max(a-t-n,0),o&&(a=Math.min(a,L()-q.innerHeight)),a})(t,p,parseInt("function"==typeof s.offset?s.offset(i,c):s.offset,10),s.clip),y=g-l,v=L(),w=0,S=(n=y,a=(o=s).speedAsDuration?o.speed:Math.abs(n/1e3*o.speed),o.durationMax&&a>o.durationMax?o.durationMax:o.durationMin&&a<o.durationMin?o.durationMin:parseInt(a,10)),E=function(e,t){var n,o,a,r=q.pageYOffset;if(e==t||r==t||(l<t&&q.innerHeight+r)>=v)return M.cancelScroll(!0),o=t,a=u,0===(n=i)&&document.body.focus(),a||(n.focus(),document.activeElement!==n&&(n.setAttribute("tabindex","-1"),n.focus(),n.style.outline="none"),q.scrollTo(0,o)),H("scrollStop",s,i,c),!(C=m=null)},b=function(e){var t,n,o;m||(m=e),w+=e-m,d=l+y*(n=r=1<(r=0===S?0:w/S)?1:r,"easeInQuad"===(t=s).easing&&(o=n*n),"easeOutQuad"===t.easing&&(o=n*(2-n)),"easeInOutQuad"===t.easing&&(o=n<.5?2*n*n:(4-2*n)*n-1),"easeInCubic"===t.easing&&(o=n*n*n),"easeOutCubic"===t.easing&&(o=--n*n*n+1),"easeInOutCubic"===t.easing&&(o=n<.5?4*n*n*n:(n-1)*(2*n-2)*(2*n-2)+1),"easeInQuart"===t.easing&&(o=n*n*n*n),"easeOutQuart"===t.easing&&(o=1- --n*n*n*n),"easeInOutQuart"===t.easing&&(o=n<.5?8*n*n*n*n:1-8*--n*n*n*n),"easeInQuint"===t.easing&&(o=n*n*n*n*n),"easeOutQuint"===t.easing&&(o=1+--n*n*n*n*n),"easeInOutQuint"===t.easing&&(o=n<.5?16*n*n*n*n*n:1+16*--n*n*n*n*n),t.customEasing&&(o=t.customEasing(n)),o||n),q.scrollTo(0,Math.floor(d)),E(d,g)||(C=q.requestAnimationFrame(b),m=e)};0===q.pageYOffset&&q.scrollTo(0,0),f=i,h=s,u||history.pushState&&h.updateURL&&history.pushState({smoothScroll:JSON.stringify(h),anchor:f.id},document.title,f===document.documentElement?"#top":"#"+f.id),"matchMedia"in q&&q.matchMedia("(prefers-reduced-motion)").matches?q.scrollTo(0,Math.floor(g)):(H("scrollStart",s,i,c),M.cancelScroll(!0),q.requestAnimationFrame(b))}};var t=function(e){if(!e.defaultPrevented&&!(0!==e.button||e.metaKey||e.ctrlKey||e.shiftKey)&&"closest"in e.target&&(a=e.target.closest(o))&&"a"===a.tagName.toLowerCase()&&!e.target.closest(A.ignore)&&a.hostname===q.location.hostname&&a.pathname===q.location.pathname&&/#/.test(a.href)){var t,n;try{t=r(decodeURIComponent(a.hash))}catch(e){t=r(a.hash)}if(console.log(t),"#"===t){if(!A.topOnEmptyHash)return;n=document.documentElement}else n=document.querySelector(t);(n=n||"#top"!==t?n:document.documentElement)&&(e.preventDefault(),(function(e){if(history.replaceState&&e.updateURL&&!history.state){var t=q.location.hash;t=t||"",history.replaceState({smoothScroll:JSON.stringify(e),anchor:t||q.pageYOffset},document.title,t||q.location.href)}})(A),M.animateScroll(n,a))}},n=function(e){if(null!==history.state&&history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(A)){var t=history.state.anchor;"string"==typeof t&&t&&!(t=document.querySelector(r(history.state.anchor)))||M.animateScroll(t,null,{updateURL:!1})}};M.destroy=function(){A&&(document.removeEventListener("click",t,!1),q.removeEventListener("popstate",n,!1),M.cancelScroll(),C=O=a=A=null)};return (function(){if(!("querySelector"in document&&"addEventListener"in q&&"requestAnimationFrame"in q&&"closest"in q.Element.prototype))throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";M.destroy(),A=F(I,e||{}),O=A.header?document.querySelector(A.header):null,document.addEventListener("click",t,!1),A.updateURL&&A.popstate&&q.addEventListener("popstate",n,!1)})(),M}}));
\ No newline at end of file
diff --git a/index.html b/index.html
index 74c0f43..a10fdc9 100755
--- a/index.html
+++ b/index.html
@@ -76,7 +76,24 @@ <h1>Smooth Scroll</h1>
 				    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.
 				</p>
 
-				<p id="中文">中文</p>
+				<p id="中文">
+					<strong>中文</strong>
+					<a href="#myymälä">More Special Characters</a>
+				</p>
+
+				<p>
+				    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
+				    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
+				    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.
+				</p>
+
+				<p id="myymälä">myymälä</p>
+
+				<p>
+				    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
+				    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
+				    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.
+				</p>
 
 				<p id="bazinga"><a href="#1@#%^-bottom">Bazinga!</a></p>
 
diff --git a/package.json b/package.json
index 08e5c80..eff08ed 100755
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
 	"name": "smooth-scroll",
-	"version": "16.1.0",
+	"version": "16.1.1",
 	"description": "Animate scrolling to anchor links",
 	"main": "./dist/smooth-scroll.polyfills.min.js",
 	"author": {
diff --git a/src/copy/index.html b/src/copy/index.html
index 74c0f43..a10fdc9 100755
--- a/src/copy/index.html
+++ b/src/copy/index.html
@@ -76,7 +76,24 @@ <h1>Smooth Scroll</h1>
 				    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.
 				</p>
 
-				<p id="中文">中文</p>
+				<p id="中文">
+					<strong>中文</strong>
+					<a href="#myymälä">More Special Characters</a>
+				</p>
+
+				<p>
+				    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
+				    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
+				    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.
+				</p>
+
+				<p id="myymälä">myymälä</p>
+
+				<p>
+				    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
+				    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
+				    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.
+				</p>
 
 				<p id="bazinga"><a href="#1@#%^-bottom">Bazinga!</a></p>
 
diff --git a/src/js/smooth-scroll/smooth-scroll.js b/src/js/smooth-scroll/smooth-scroll.js
index 49c3b63..56b45b3 100755
--- a/src/js/smooth-scroll/smooth-scroll.js
+++ b/src/js/smooth-scroll/smooth-scroll.js
@@ -517,7 +517,13 @@
 			if (toggle.hostname !== window.location.hostname || toggle.pathname !== window.location.pathname || !/#/.test(toggle.href)) return;
 
 			// Get an escaped version of the hash
-			var hash = escapeCharacters(toggle.hash);
+			var hash;
+			try {
+				hash = escapeCharacters(decodeURIComponent(toggle.hash));
+			} catch(e) {
+				hash = escapeCharacters(toggle.hash);
+			}
+			console.log(hash);
 
 			// Get the anchored element
 			var anchor;

From 9f37dd4431b921ed089ddf4d74a0d86be4fad2ce Mon Sep 17 00:00:00 2001
From: cferdinandi <chris@gomakethings.com>
Date: Tue, 7 Jan 2020 23:13:43 -0500
Subject: [PATCH 42/51] Updated workflow syntax

---
 .github/main.workflow      | 10 ----------
 .github/workflows/push.yml | 13 +++++++++++++
 2 files changed, 13 insertions(+), 10 deletions(-)
 delete mode 100644 .github/main.workflow
 create mode 100644 .github/workflows/push.yml

diff --git a/.github/main.workflow b/.github/main.workflow
deleted file mode 100644
index 3f7dcd2..0000000
--- a/.github/main.workflow
+++ /dev/null
@@ -1,10 +0,0 @@
-workflow "publish on release" {
-  on = "push"
-  resolves = ["publish"]
-}
-
-action "publish" {
-  uses = "actions/npm@master"
-  args = "publish"
-  secrets = ["NPM_AUTH_TOKEN"]
-}
\ No newline at end of file
diff --git a/.github/workflows/push.yml b/.github/workflows/push.yml
new file mode 100644
index 0000000..42b06b4
--- /dev/null
+++ b/.github/workflows/push.yml
@@ -0,0 +1,13 @@
+on: push
+name: publish on release
+jobs:
+  publish:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@master
+    - name: publish
+      uses: actions/npm@master
+      env:
+        NPM_AUTH_TOKEN: ${{ secrets.NPM_AUTH_TOKEN }}
+      with:
+        args: publish

From 3d3e381864589601cb3b7417e1162a5b7d5bd286 Mon Sep 17 00:00:00 2001
From: cferdinandi <chris@gomakethings.com>
Date: Wed, 22 Jan 2020 09:09:23 -0500
Subject: [PATCH 43/51] Removed forgotten console.log()

---
 dist/smooth-scroll.js                 | 5 ++---
 dist/smooth-scroll.min.js             | 4 ++--
 dist/smooth-scroll.polyfills.js       | 5 ++---
 dist/smooth-scroll.polyfills.min.js   | 4 ++--
 package.json                          | 2 +-
 src/js/smooth-scroll/smooth-scroll.js | 1 -
 6 files changed, 9 insertions(+), 12 deletions(-)

diff --git a/dist/smooth-scroll.js b/dist/smooth-scroll.js
index 52c7a35..c4179a7 100755
--- a/dist/smooth-scroll.js
+++ b/dist/smooth-scroll.js
@@ -1,7 +1,7 @@
 /*!
- * smooth-scroll v16.1.1
+ * smooth-scroll v16.1.2
  * Animate scrolling to anchor links
- * (c) 2019 Chris Ferdinandi
+ * (c) 2020 Chris Ferdinandi
  * MIT License
  * http://github.com/cferdinandi/smooth-scroll
  */
@@ -531,7 +531,6 @@
 			} catch(e) {
 				hash = escapeCharacters(toggle.hash);
 			}
-			console.log(hash);
 
 			// Get the anchored element
 			var anchor;
diff --git a/dist/smooth-scroll.min.js b/dist/smooth-scroll.min.js
index eb6ef13..3899799 100755
--- a/dist/smooth-scroll.min.js
+++ b/dist/smooth-scroll.min.js
@@ -1,2 +1,2 @@
-/*! smooth-scroll v16.1.1 | (c) 2019 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
-!(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(w){"use strict";var L={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,speedAsDuration:!1,durationMax:null,durationMin:null,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},H=function(){var n={};return Array.prototype.forEach.call(arguments,(function(e){for(var t in e){if(!e.hasOwnProperty(t))return;n[t]=e[t]}})),n},r=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,a=-1,r="",i=n.charCodeAt(0);++a<o;){if(0===(t=n.charCodeAt(a)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");1<=t&&t<=31||127==t||0===a&&48<=t&&t<=57||1===a&&48<=t&&t<=57&&45===i?r+="\\"+t.toString(16)+" ":r+=128<=t||45===t||95===t||48<=t&&t<=57||65<=t&&t<=90||97<=t&&t<=122?n.charAt(a):"\\"+n.charAt(a)}return"#"+r},q=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},x=function(e){return e?(t=e,parseInt(w.getComputedStyle(t).height,10)+e.offsetTop):0;var t},Q=function(e,t,n,o){if(t.emitEvents&&"function"==typeof w.CustomEvent){var a=new CustomEvent(e,{bubbles:!0,detail:{anchor:n,toggle:o}});document.dispatchEvent(a)}};return function(o,e){var I,a,M,A,C={};C.cancelScroll=function(e){cancelAnimationFrame(A),A=null,e||Q("scrollCancel",I)},C.animateScroll=function(i,s,e){C.cancelScroll();var c=H(I||L,e||{}),u="[object Number]"===Object.prototype.toString.call(i),t=u||!i.tagName?null:i;if(u||t){var l=w.pageYOffset;c.header&&!M&&(M=document.querySelector(c.header));var n,o,a,d,r,f,m,h,p=x(M),g=u?i:(function(e,t,n,o){var a=0;if(e.offsetParent)for(;a+=e.offsetTop,e=e.offsetParent;);return a=Math.max(a-t-n,0),o&&(a=Math.min(a,q()-w.innerHeight)),a})(t,p,parseInt("function"==typeof c.offset?c.offset(i,s):c.offset,10),c.clip),y=g-l,v=q(),S=0,E=(n=y,a=(o=c).speedAsDuration?o.speed:Math.abs(n/1e3*o.speed),o.durationMax&&a>o.durationMax?o.durationMax:o.durationMin&&a<o.durationMin?o.durationMin:parseInt(a,10)),b=function(e,t){var n,o,a,r=w.pageYOffset;if(e==t||r==t||(l<t&&w.innerHeight+r)>=v)return C.cancelScroll(!0),o=t,a=u,0===(n=i)&&document.body.focus(),a||(n.focus(),document.activeElement!==n&&(n.setAttribute("tabindex","-1"),n.focus(),n.style.outline="none"),w.scrollTo(0,o)),Q("scrollStop",c,i,s),!(A=d=null)},O=function(e){var t,n,o;d||(d=e),S+=e-d,f=l+y*(n=r=1<(r=0===E?0:S/E)?1:r,"easeInQuad"===(t=c).easing&&(o=n*n),"easeOutQuad"===t.easing&&(o=n*(2-n)),"easeInOutQuad"===t.easing&&(o=n<.5?2*n*n:(4-2*n)*n-1),"easeInCubic"===t.easing&&(o=n*n*n),"easeOutCubic"===t.easing&&(o=--n*n*n+1),"easeInOutCubic"===t.easing&&(o=n<.5?4*n*n*n:(n-1)*(2*n-2)*(2*n-2)+1),"easeInQuart"===t.easing&&(o=n*n*n*n),"easeOutQuart"===t.easing&&(o=1- --n*n*n*n),"easeInOutQuart"===t.easing&&(o=n<.5?8*n*n*n*n:1-8*--n*n*n*n),"easeInQuint"===t.easing&&(o=n*n*n*n*n),"easeOutQuint"===t.easing&&(o=1+--n*n*n*n*n),"easeInOutQuint"===t.easing&&(o=n<.5?16*n*n*n*n*n:1+16*--n*n*n*n*n),t.customEasing&&(o=t.customEasing(n)),o||n),w.scrollTo(0,Math.floor(f)),b(f,g)||(A=w.requestAnimationFrame(O),d=e)};0===w.pageYOffset&&w.scrollTo(0,0),m=i,h=c,u||history.pushState&&h.updateURL&&history.pushState({smoothScroll:JSON.stringify(h),anchor:m.id},document.title,m===document.documentElement?"#top":"#"+m.id),"matchMedia"in w&&w.matchMedia("(prefers-reduced-motion)").matches?w.scrollTo(0,Math.floor(g)):(Q("scrollStart",c,i,s),C.cancelScroll(!0),w.requestAnimationFrame(O))}};var t=function(e){if(!e.defaultPrevented&&!(0!==e.button||e.metaKey||e.ctrlKey||e.shiftKey)&&"closest"in e.target&&(a=e.target.closest(o))&&"a"===a.tagName.toLowerCase()&&!e.target.closest(I.ignore)&&a.hostname===w.location.hostname&&a.pathname===w.location.pathname&&/#/.test(a.href)){var t,n;try{t=r(decodeURIComponent(a.hash))}catch(e){t=r(a.hash)}if(console.log(t),"#"===t){if(!I.topOnEmptyHash)return;n=document.documentElement}else n=document.querySelector(t);(n=n||"#top"!==t?n:document.documentElement)&&(e.preventDefault(),(function(e){if(history.replaceState&&e.updateURL&&!history.state){var t=w.location.hash;t=t||"",history.replaceState({smoothScroll:JSON.stringify(e),anchor:t||w.pageYOffset},document.title,t||w.location.href)}})(I),C.animateScroll(n,a))}},n=function(e){if(null!==history.state&&history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(I)){var t=history.state.anchor;"string"==typeof t&&t&&!(t=document.querySelector(r(history.state.anchor)))||C.animateScroll(t,null,{updateURL:!1})}};C.destroy=function(){I&&(document.removeEventListener("click",t,!1),w.removeEventListener("popstate",n,!1),C.cancelScroll(),A=M=a=I=null)};return (function(){if(!("querySelector"in document&&"addEventListener"in w&&"requestAnimationFrame"in w&&"closest"in w.Element.prototype))throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";C.destroy(),I=H(L,e||{}),M=I.header?document.querySelector(I.header):null,document.addEventListener("click",t,!1),I.updateURL&&I.popstate&&w.addEventListener("popstate",n,!1)})(),C}}));
\ No newline at end of file
+/*! smooth-scroll v16.1.2 | (c) 2020 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
+!(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(w){"use strict";var L={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,speedAsDuration:!1,durationMax:null,durationMin:null,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},H=function(){var n={};return Array.prototype.forEach.call(arguments,(function(e){for(var t in e){if(!e.hasOwnProperty(t))return;n[t]=e[t]}})),n},r=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,a=-1,r="",i=n.charCodeAt(0);++a<o;){if(0===(t=n.charCodeAt(a)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");1<=t&&t<=31||127==t||0===a&&48<=t&&t<=57||1===a&&48<=t&&t<=57&&45===i?r+="\\"+t.toString(16)+" ":r+=128<=t||45===t||95===t||48<=t&&t<=57||65<=t&&t<=90||97<=t&&t<=122?n.charAt(a):"\\"+n.charAt(a)}return"#"+r},q=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},x=function(e){return e?(t=e,parseInt(w.getComputedStyle(t).height,10)+e.offsetTop):0;var t},Q=function(e,t,n,o){if(t.emitEvents&&"function"==typeof w.CustomEvent){var a=new CustomEvent(e,{bubbles:!0,detail:{anchor:n,toggle:o}});document.dispatchEvent(a)}};return function(o,e){var I,a,M,A,C={};C.cancelScroll=function(e){cancelAnimationFrame(A),A=null,e||Q("scrollCancel",I)},C.animateScroll=function(i,s,e){C.cancelScroll();var c=H(I||L,e||{}),u="[object Number]"===Object.prototype.toString.call(i),t=u||!i.tagName?null:i;if(u||t){var l=w.pageYOffset;c.header&&!M&&(M=document.querySelector(c.header));var n,o,a,d,r,f,m,h,p=x(M),g=u?i:(function(e,t,n,o){var a=0;if(e.offsetParent)for(;a+=e.offsetTop,e=e.offsetParent;);return a=Math.max(a-t-n,0),o&&(a=Math.min(a,q()-w.innerHeight)),a})(t,p,parseInt("function"==typeof c.offset?c.offset(i,s):c.offset,10),c.clip),y=g-l,v=q(),S=0,E=(n=y,a=(o=c).speedAsDuration?o.speed:Math.abs(n/1e3*o.speed),o.durationMax&&a>o.durationMax?o.durationMax:o.durationMin&&a<o.durationMin?o.durationMin:parseInt(a,10)),b=function(e,t){var n,o,a,r=w.pageYOffset;if(e==t||r==t||(l<t&&w.innerHeight+r)>=v)return C.cancelScroll(!0),o=t,a=u,0===(n=i)&&document.body.focus(),a||(n.focus(),document.activeElement!==n&&(n.setAttribute("tabindex","-1"),n.focus(),n.style.outline="none"),w.scrollTo(0,o)),Q("scrollStop",c,i,s),!(A=d=null)},O=function(e){var t,n,o;d||(d=e),S+=e-d,f=l+y*(n=r=1<(r=0===E?0:S/E)?1:r,"easeInQuad"===(t=c).easing&&(o=n*n),"easeOutQuad"===t.easing&&(o=n*(2-n)),"easeInOutQuad"===t.easing&&(o=n<.5?2*n*n:(4-2*n)*n-1),"easeInCubic"===t.easing&&(o=n*n*n),"easeOutCubic"===t.easing&&(o=--n*n*n+1),"easeInOutCubic"===t.easing&&(o=n<.5?4*n*n*n:(n-1)*(2*n-2)*(2*n-2)+1),"easeInQuart"===t.easing&&(o=n*n*n*n),"easeOutQuart"===t.easing&&(o=1- --n*n*n*n),"easeInOutQuart"===t.easing&&(o=n<.5?8*n*n*n*n:1-8*--n*n*n*n),"easeInQuint"===t.easing&&(o=n*n*n*n*n),"easeOutQuint"===t.easing&&(o=1+--n*n*n*n*n),"easeInOutQuint"===t.easing&&(o=n<.5?16*n*n*n*n*n:1+16*--n*n*n*n*n),t.customEasing&&(o=t.customEasing(n)),o||n),w.scrollTo(0,Math.floor(f)),b(f,g)||(A=w.requestAnimationFrame(O),d=e)};0===w.pageYOffset&&w.scrollTo(0,0),m=i,h=c,u||history.pushState&&h.updateURL&&history.pushState({smoothScroll:JSON.stringify(h),anchor:m.id},document.title,m===document.documentElement?"#top":"#"+m.id),"matchMedia"in w&&w.matchMedia("(prefers-reduced-motion)").matches?w.scrollTo(0,Math.floor(g)):(Q("scrollStart",c,i,s),C.cancelScroll(!0),w.requestAnimationFrame(O))}};var t=function(e){if(!e.defaultPrevented&&!(0!==e.button||e.metaKey||e.ctrlKey||e.shiftKey)&&"closest"in e.target&&(a=e.target.closest(o))&&"a"===a.tagName.toLowerCase()&&!e.target.closest(I.ignore)&&a.hostname===w.location.hostname&&a.pathname===w.location.pathname&&/#/.test(a.href)){var t,n;try{t=r(decodeURIComponent(a.hash))}catch(e){t=r(a.hash)}if("#"===t){if(!I.topOnEmptyHash)return;n=document.documentElement}else n=document.querySelector(t);(n=n||"#top"!==t?n:document.documentElement)&&(e.preventDefault(),(function(e){if(history.replaceState&&e.updateURL&&!history.state){var t=w.location.hash;t=t||"",history.replaceState({smoothScroll:JSON.stringify(e),anchor:t||w.pageYOffset},document.title,t||w.location.href)}})(I),C.animateScroll(n,a))}},n=function(e){if(null!==history.state&&history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(I)){var t=history.state.anchor;"string"==typeof t&&t&&!(t=document.querySelector(r(history.state.anchor)))||C.animateScroll(t,null,{updateURL:!1})}};C.destroy=function(){I&&(document.removeEventListener("click",t,!1),w.removeEventListener("popstate",n,!1),C.cancelScroll(),A=M=a=I=null)};return (function(){if(!("querySelector"in document&&"addEventListener"in w&&"requestAnimationFrame"in w&&"closest"in w.Element.prototype))throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";C.destroy(),I=H(L,e||{}),M=I.header?document.querySelector(I.header):null,document.addEventListener("click",t,!1),I.updateURL&&I.popstate&&w.addEventListener("popstate",n,!1)})(),C}}));
\ No newline at end of file
diff --git a/dist/smooth-scroll.polyfills.js b/dist/smooth-scroll.polyfills.js
index ac611f7..3ffe249 100755
--- a/dist/smooth-scroll.polyfills.js
+++ b/dist/smooth-scroll.polyfills.js
@@ -1,7 +1,7 @@
 /*!
- * smooth-scroll v16.1.1
+ * smooth-scroll v16.1.2
  * Animate scrolling to anchor links
- * (c) 2019 Chris Ferdinandi
+ * (c) 2020 Chris Ferdinandi
  * MIT License
  * http://github.com/cferdinandi/smooth-scroll
  */
@@ -601,7 +601,6 @@ if (window.Element && !Element.prototype.closest) {
 			} catch(e) {
 				hash = escapeCharacters(toggle.hash);
 			}
-			console.log(hash);
 
 			// Get the anchored element
 			var anchor;
diff --git a/dist/smooth-scroll.polyfills.min.js b/dist/smooth-scroll.polyfills.min.js
index f77e2b1..311685a 100755
--- a/dist/smooth-scroll.polyfills.min.js
+++ b/dist/smooth-scroll.polyfills.min.js
@@ -1,2 +1,2 @@
-/*! smooth-scroll v16.1.1 | (c) 2019 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
-window.Element&&!Element.prototype.closest&&(Element.prototype.closest=function(e){var t,n=(this.document||this.ownerDocument).querySelectorAll(e),o=this;do{for(t=n.length;0<=--t&&n.item(t)!==o;);}while(t<0&&(o=o.parentElement));return o}),(function(){if("function"==typeof window.CustomEvent)return;function e(e,t){t=t||{bubbles:!1,cancelable:!1,detail:void 0};var n=document.createEvent("CustomEvent");return n.initCustomEvent(e,t.bubbles,t.cancelable,t.detail),n}e.prototype=window.Event.prototype,window.CustomEvent=e})(),(function(){for(var r=0,e=["ms","moz","webkit","o"],t=0;t<e.length&&!window.requestAnimationFrame;++t)window.requestAnimationFrame=window[e[t]+"RequestAnimationFrame"],window.cancelAnimationFrame=window[e[t]+"CancelAnimationFrame"]||window[e[t]+"CancelRequestAnimationFrame"];window.requestAnimationFrame||(window.requestAnimationFrame=function(e,t){var n=(new Date).getTime(),o=Math.max(0,16-(n-r)),a=window.setTimeout((function(){e(n+o)}),o);return r=n+o,a}),window.cancelAnimationFrame||(window.cancelAnimationFrame=function(e){clearTimeout(e)})})(),(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(q){"use strict";var I={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,speedAsDuration:!1,durationMax:null,durationMin:null,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},F=function(){var n={};return Array.prototype.forEach.call(arguments,(function(e){for(var t in e){if(!e.hasOwnProperty(t))return;n[t]=e[t]}})),n},r=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,a=-1,r="",i=n.charCodeAt(0);++a<o;){if(0===(t=n.charCodeAt(a)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");1<=t&&t<=31||127==t||0===a&&48<=t&&t<=57||1===a&&48<=t&&t<=57&&45===i?r+="\\"+t.toString(16)+" ":r+=128<=t||45===t||95===t||48<=t&&t<=57||65<=t&&t<=90||97<=t&&t<=122?n.charAt(a):"\\"+n.charAt(a)}return"#"+r},L=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},x=function(e){return e?(t=e,parseInt(q.getComputedStyle(t).height,10)+e.offsetTop):0;var t},H=function(e,t,n,o){if(t.emitEvents&&"function"==typeof q.CustomEvent){var a=new CustomEvent(e,{bubbles:!0,detail:{anchor:n,toggle:o}});document.dispatchEvent(a)}};return function(o,e){var A,a,O,C,M={};M.cancelScroll=function(e){cancelAnimationFrame(C),C=null,e||H("scrollCancel",A)},M.animateScroll=function(i,c,e){M.cancelScroll();var s=F(A||I,e||{}),u="[object Number]"===Object.prototype.toString.call(i),t=u||!i.tagName?null:i;if(u||t){var l=q.pageYOffset;s.header&&!O&&(O=document.querySelector(s.header));var n,o,a,m,r,d,f,h,p=x(O),g=u?i:(function(e,t,n,o){var a=0;if(e.offsetParent)for(;a+=e.offsetTop,e=e.offsetParent;);return a=Math.max(a-t-n,0),o&&(a=Math.min(a,L()-q.innerHeight)),a})(t,p,parseInt("function"==typeof s.offset?s.offset(i,c):s.offset,10),s.clip),y=g-l,v=L(),w=0,S=(n=y,a=(o=s).speedAsDuration?o.speed:Math.abs(n/1e3*o.speed),o.durationMax&&a>o.durationMax?o.durationMax:o.durationMin&&a<o.durationMin?o.durationMin:parseInt(a,10)),E=function(e,t){var n,o,a,r=q.pageYOffset;if(e==t||r==t||(l<t&&q.innerHeight+r)>=v)return M.cancelScroll(!0),o=t,a=u,0===(n=i)&&document.body.focus(),a||(n.focus(),document.activeElement!==n&&(n.setAttribute("tabindex","-1"),n.focus(),n.style.outline="none"),q.scrollTo(0,o)),H("scrollStop",s,i,c),!(C=m=null)},b=function(e){var t,n,o;m||(m=e),w+=e-m,d=l+y*(n=r=1<(r=0===S?0:w/S)?1:r,"easeInQuad"===(t=s).easing&&(o=n*n),"easeOutQuad"===t.easing&&(o=n*(2-n)),"easeInOutQuad"===t.easing&&(o=n<.5?2*n*n:(4-2*n)*n-1),"easeInCubic"===t.easing&&(o=n*n*n),"easeOutCubic"===t.easing&&(o=--n*n*n+1),"easeInOutCubic"===t.easing&&(o=n<.5?4*n*n*n:(n-1)*(2*n-2)*(2*n-2)+1),"easeInQuart"===t.easing&&(o=n*n*n*n),"easeOutQuart"===t.easing&&(o=1- --n*n*n*n),"easeInOutQuart"===t.easing&&(o=n<.5?8*n*n*n*n:1-8*--n*n*n*n),"easeInQuint"===t.easing&&(o=n*n*n*n*n),"easeOutQuint"===t.easing&&(o=1+--n*n*n*n*n),"easeInOutQuint"===t.easing&&(o=n<.5?16*n*n*n*n*n:1+16*--n*n*n*n*n),t.customEasing&&(o=t.customEasing(n)),o||n),q.scrollTo(0,Math.floor(d)),E(d,g)||(C=q.requestAnimationFrame(b),m=e)};0===q.pageYOffset&&q.scrollTo(0,0),f=i,h=s,u||history.pushState&&h.updateURL&&history.pushState({smoothScroll:JSON.stringify(h),anchor:f.id},document.title,f===document.documentElement?"#top":"#"+f.id),"matchMedia"in q&&q.matchMedia("(prefers-reduced-motion)").matches?q.scrollTo(0,Math.floor(g)):(H("scrollStart",s,i,c),M.cancelScroll(!0),q.requestAnimationFrame(b))}};var t=function(e){if(!e.defaultPrevented&&!(0!==e.button||e.metaKey||e.ctrlKey||e.shiftKey)&&"closest"in e.target&&(a=e.target.closest(o))&&"a"===a.tagName.toLowerCase()&&!e.target.closest(A.ignore)&&a.hostname===q.location.hostname&&a.pathname===q.location.pathname&&/#/.test(a.href)){var t,n;try{t=r(decodeURIComponent(a.hash))}catch(e){t=r(a.hash)}if(console.log(t),"#"===t){if(!A.topOnEmptyHash)return;n=document.documentElement}else n=document.querySelector(t);(n=n||"#top"!==t?n:document.documentElement)&&(e.preventDefault(),(function(e){if(history.replaceState&&e.updateURL&&!history.state){var t=q.location.hash;t=t||"",history.replaceState({smoothScroll:JSON.stringify(e),anchor:t||q.pageYOffset},document.title,t||q.location.href)}})(A),M.animateScroll(n,a))}},n=function(e){if(null!==history.state&&history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(A)){var t=history.state.anchor;"string"==typeof t&&t&&!(t=document.querySelector(r(history.state.anchor)))||M.animateScroll(t,null,{updateURL:!1})}};M.destroy=function(){A&&(document.removeEventListener("click",t,!1),q.removeEventListener("popstate",n,!1),M.cancelScroll(),C=O=a=A=null)};return (function(){if(!("querySelector"in document&&"addEventListener"in q&&"requestAnimationFrame"in q&&"closest"in q.Element.prototype))throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";M.destroy(),A=F(I,e||{}),O=A.header?document.querySelector(A.header):null,document.addEventListener("click",t,!1),A.updateURL&&A.popstate&&q.addEventListener("popstate",n,!1)})(),M}}));
\ No newline at end of file
+/*! smooth-scroll v16.1.2 | (c) 2020 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
+window.Element&&!Element.prototype.closest&&(Element.prototype.closest=function(e){var t,n=(this.document||this.ownerDocument).querySelectorAll(e),o=this;do{for(t=n.length;0<=--t&&n.item(t)!==o;);}while(t<0&&(o=o.parentElement));return o}),(function(){if("function"==typeof window.CustomEvent)return;function e(e,t){t=t||{bubbles:!1,cancelable:!1,detail:void 0};var n=document.createEvent("CustomEvent");return n.initCustomEvent(e,t.bubbles,t.cancelable,t.detail),n}e.prototype=window.Event.prototype,window.CustomEvent=e})(),(function(){for(var r=0,e=["ms","moz","webkit","o"],t=0;t<e.length&&!window.requestAnimationFrame;++t)window.requestAnimationFrame=window[e[t]+"RequestAnimationFrame"],window.cancelAnimationFrame=window[e[t]+"CancelAnimationFrame"]||window[e[t]+"CancelRequestAnimationFrame"];window.requestAnimationFrame||(window.requestAnimationFrame=function(e,t){var n=(new Date).getTime(),o=Math.max(0,16-(n-r)),a=window.setTimeout((function(){e(n+o)}),o);return r=n+o,a}),window.cancelAnimationFrame||(window.cancelAnimationFrame=function(e){clearTimeout(e)})})(),(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(q){"use strict";var I={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,speedAsDuration:!1,durationMax:null,durationMin:null,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},F=function(){var n={};return Array.prototype.forEach.call(arguments,(function(e){for(var t in e){if(!e.hasOwnProperty(t))return;n[t]=e[t]}})),n},r=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,a=-1,r="",i=n.charCodeAt(0);++a<o;){if(0===(t=n.charCodeAt(a)))throw new InvalidCharacterError("Invalid character: the input contains 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l=q.pageYOffset;s.header&&!O&&(O=document.querySelector(s.header));var n,o,a,m,r,d,f,h,p=x(O),g=u?i:(function(e,t,n,o){var a=0;if(e.offsetParent)for(;a+=e.offsetTop,e=e.offsetParent;);return a=Math.max(a-t-n,0),o&&(a=Math.min(a,L()-q.innerHeight)),a})(t,p,parseInt("function"==typeof s.offset?s.offset(i,c):s.offset,10),s.clip),y=g-l,v=L(),w=0,S=(n=y,a=(o=s).speedAsDuration?o.speed:Math.abs(n/1e3*o.speed),o.durationMax&&a>o.durationMax?o.durationMax:o.durationMin&&a<o.durationMin?o.durationMin:parseInt(a,10)),E=function(e,t){var n,o,a,r=q.pageYOffset;if(e==t||r==t||(l<t&&q.innerHeight+r)>=v)return M.cancelScroll(!0),o=t,a=u,0===(n=i)&&document.body.focus(),a||(n.focus(),document.activeElement!==n&&(n.setAttribute("tabindex","-1"),n.focus(),n.style.outline="none"),q.scrollTo(0,o)),H("scrollStop",s,i,c),!(C=m=null)},b=function(e){var t,n,o;m||(m=e),w+=e-m,d=l+y*(n=r=1<(r=0===S?0:w/S)?1:r,"easeInQuad"===(t=s).easing&&(o=n*n),"easeOutQuad"===t.easing&&(o=n*(2-n)),"easeInOutQuad"===t.easing&&(o=n<.5?2*n*n:(4-2*n)*n-1),"easeInCubic"===t.easing&&(o=n*n*n),"easeOutCubic"===t.easing&&(o=--n*n*n+1),"easeInOutCubic"===t.easing&&(o=n<.5?4*n*n*n:(n-1)*(2*n-2)*(2*n-2)+1),"easeInQuart"===t.easing&&(o=n*n*n*n),"easeOutQuart"===t.easing&&(o=1- --n*n*n*n),"easeInOutQuart"===t.easing&&(o=n<.5?8*n*n*n*n:1-8*--n*n*n*n),"easeInQuint"===t.easing&&(o=n*n*n*n*n),"easeOutQuint"===t.easing&&(o=1+--n*n*n*n*n),"easeInOutQuint"===t.easing&&(o=n<.5?16*n*n*n*n*n:1+16*--n*n*n*n*n),t.customEasing&&(o=t.customEasing(n)),o||n),q.scrollTo(0,Math.floor(d)),E(d,g)||(C=q.requestAnimationFrame(b),m=e)};0===q.pageYOffset&&q.scrollTo(0,0),f=i,h=s,u||history.pushState&&h.updateURL&&history.pushState({smoothScroll:JSON.stringify(h),anchor:f.id},document.title,f===document.documentElement?"#top":"#"+f.id),"matchMedia"in q&&q.matchMedia("(prefers-reduced-motion)").matches?q.scrollTo(0,Math.floor(g)):(H("scrollStart",s,i,c),M.cancelScroll(!0),q.requestAnimationFrame(b))}};var t=function(e){if(!e.defaultPrevented&&!(0!==e.button||e.metaKey||e.ctrlKey||e.shiftKey)&&"closest"in e.target&&(a=e.target.closest(o))&&"a"===a.tagName.toLowerCase()&&!e.target.closest(A.ignore)&&a.hostname===q.location.hostname&&a.pathname===q.location.pathname&&/#/.test(a.href)){var t,n;try{t=r(decodeURIComponent(a.hash))}catch(e){t=r(a.hash)}if("#"===t){if(!A.topOnEmptyHash)return;n=document.documentElement}else n=document.querySelector(t);(n=n||"#top"!==t?n:document.documentElement)&&(e.preventDefault(),(function(e){if(history.replaceState&&e.updateURL&&!history.state){var t=q.location.hash;t=t||"",history.replaceState({smoothScroll:JSON.stringify(e),anchor:t||q.pageYOffset},document.title,t||q.location.href)}})(A),M.animateScroll(n,a))}},n=function(e){if(null!==history.state&&history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(A)){var t=history.state.anchor;"string"==typeof t&&t&&!(t=document.querySelector(r(history.state.anchor)))||M.animateScroll(t,null,{updateURL:!1})}};M.destroy=function(){A&&(document.removeEventListener("click",t,!1),q.removeEventListener("popstate",n,!1),M.cancelScroll(),C=O=a=A=null)};return (function(){if(!("querySelector"in document&&"addEventListener"in q&&"requestAnimationFrame"in q&&"closest"in q.Element.prototype))throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";M.destroy(),A=F(I,e||{}),O=A.header?document.querySelector(A.header):null,document.addEventListener("click",t,!1),A.updateURL&&A.popstate&&q.addEventListener("popstate",n,!1)})(),M}}));
\ No newline at end of file
diff --git a/package.json b/package.json
index eff08ed..f1e82eb 100755
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
 	"name": "smooth-scroll",
-	"version": "16.1.1",
+	"version": "16.1.2",
 	"description": "Animate scrolling to anchor links",
 	"main": "./dist/smooth-scroll.polyfills.min.js",
 	"author": {
diff --git a/src/js/smooth-scroll/smooth-scroll.js b/src/js/smooth-scroll/smooth-scroll.js
index 56b45b3..bdbb9a8 100755
--- a/src/js/smooth-scroll/smooth-scroll.js
+++ b/src/js/smooth-scroll/smooth-scroll.js
@@ -523,7 +523,6 @@
 			} catch(e) {
 				hash = escapeCharacters(toggle.hash);
 			}
-			console.log(hash);
 
 			// Get the anchored element
 			var anchor;

From f386e1671b97a8e2b57df9213e494fbac2a973b9 Mon Sep 17 00:00:00 2001
From: Pu Guan <pu.guan@propellerhead.co.nz>
Date: Tue, 24 Mar 2020 16:49:37 +1300
Subject: [PATCH 44/51] Fix focus issue when reducemotion is on

---
 src/js/smooth-scroll/smooth-scroll.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/js/smooth-scroll/smooth-scroll.js b/src/js/smooth-scroll/smooth-scroll.js
index bdbb9a8..1833157 100755
--- a/src/js/smooth-scroll/smooth-scroll.js
+++ b/src/js/smooth-scroll/smooth-scroll.js
@@ -480,7 +480,7 @@
 
 			// If the user prefers reduced motion, jump to location
 			if (reduceMotion()) {
-				window.scrollTo(0, Math.floor(endLocation));
+				adjustFocus(anchor, Math.floor(endLocation), false);
 				return;
 			}
 

From cf46975178f2966a8ca8c4ec446a40e9a9ba38d8 Mon Sep 17 00:00:00 2001
From: Bulat Nasibullin <nasibullinbulat95@gmail.com>
Date: Sun, 26 Apr 2020 19:07:05 +0400
Subject: [PATCH 45/51] fix easingPattern documentation (Closes #515)

---
 .idea/misc.xml                        |   6 +
 .idea/modules.xml                     |   8 ++
 .idea/smooth-scroll.iml               |  12 ++
 .idea/vcs.xml                         |   6 +
 .idea/workspace.xml                   | 179 ++++++++++++++++++++++++++
 src/js/smooth-scroll/smooth-scroll.js |   2 +-
 6 files changed, 212 insertions(+), 1 deletion(-)
 create mode 100644 .idea/misc.xml
 create mode 100644 .idea/modules.xml
 create mode 100644 .idea/smooth-scroll.iml
 create mode 100644 .idea/vcs.xml
 create mode 100644 .idea/workspace.xml

diff --git a/.idea/misc.xml b/.idea/misc.xml
new file mode 100644
index 0000000..28a804d
--- /dev/null
+++ b/.idea/misc.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="JavaScriptSettings">
+    <option name="languageLevel" value="ES6" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/.idea/modules.xml b/.idea/modules.xml
new file mode 100644
index 0000000..2700fac
--- /dev/null
+++ b/.idea/modules.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/.idea/smooth-scroll.iml" filepath="$PROJECT_DIR$/.idea/smooth-scroll.iml" />
+    </modules>
+  </component>
+</project>
\ No newline at end of file
diff --git a/.idea/smooth-scroll.iml b/.idea/smooth-scroll.iml
new file mode 100644
index 0000000..24643cc
--- /dev/null
+++ b/.idea/smooth-scroll.iml
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="WEB_MODULE" version="4">
+  <component name="NewModuleRootManager">
+    <content url="file://$MODULE_DIR$">
+      <excludeFolder url="file://$MODULE_DIR$/.tmp" />
+      <excludeFolder url="file://$MODULE_DIR$/temp" />
+      <excludeFolder url="file://$MODULE_DIR$/tmp" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>
\ No newline at end of file
diff --git a/.idea/vcs.xml b/.idea/vcs.xml
new file mode 100644
index 0000000..94a25f7
--- /dev/null
+++ b/.idea/vcs.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$" vcs="Git" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/.idea/workspace.xml b/.idea/workspace.xml
new file mode 100644
index 0000000..c6ceec0
--- /dev/null
+++ b/.idea/workspace.xml
@@ -0,0 +1,179 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="BranchesTreeState">
+    <expand>
+      <path>
+        <item name="ROOT" type="e8cecc67:BranchNodeDescriptor" />
+        <item name="LOCAL_ROOT" type="e8cecc67:BranchNodeDescriptor" />
+      </path>
+      <path>
+        <item name="ROOT" type="e8cecc67:BranchNodeDescriptor" />
+        <item name="REMOTE_ROOT" type="e8cecc67:BranchNodeDescriptor" />
+      </path>
+      <path>
+        <item name="ROOT" type="e8cecc67:BranchNodeDescriptor" />
+        <item name="REMOTE_ROOT" type="e8cecc67:BranchNodeDescriptor" />
+        <item name="GROUP_NODE:origin" type="e8cecc67:BranchNodeDescriptor" />
+      </path>
+    </expand>
+    <select />
+  </component>
+  <component name="ChangeListManager">
+    <list default="true" id="8f992c34-3ae6-4050-ab27-a748dfaa1c39" name="Default Changelist" comment="">
+      <change beforePath="$PROJECT_DIR$/src/js/smooth-scroll/smooth-scroll.js" beforeDir="false" afterPath="$PROJECT_DIR$/src/js/smooth-scroll/smooth-scroll.js" afterDir="false" />
+    </list>
+    <option name="SHOW_DIALOG" value="false" />
+    <option name="HIGHLIGHT_CONFLICTS" value="true" />
+    <option name="HIGHLIGHT_NON_ACTIVE_CHANGELIST" value="false" />
+    <option name="LAST_RESOLUTION" value="IGNORE" />
+  </component>
+  <component name="FileTemplateManagerImpl">
+    <option name="RECENT_TEMPLATES">
+      <list>
+        <option value="HTML File" />
+      </list>
+    </option>
+  </component>
+  <component name="Git.Settings">
+    <option name="RECENT_GIT_ROOT_PATH" value="$PROJECT_DIR$" />
+  </component>
+  <component name="ProjectId" id="1b2ZnOhJniNvsmnh0ShiNuUkPnB" />
+  <component name="ProjectLevelVcsManager">
+    <ConfirmationsSetting value="1" id="Add" />
+  </component>
+  <component name="ProjectViewState">
+    <option name="hideEmptyMiddlePackages" value="true" />
+    <option name="showLibraryContents" value="true" />
+  </component>
+  <component name="PropertiesComponent">
+    <property name="DefaultHtmlFileTemplate" value="HTML File" />
+    <property name="RunOnceActivity.OpenProjectViewOnStart" value="true" />
+    <property name="RunOnceActivity.ShowReadmeOnStart" value="true" />
+    <property name="WebServerToolWindowFactoryState" value="false" />
+    <property name="js.buildTools.gulp.gulp_package_dir" value="$PROJECT_DIR$/node_modules/gulp" />
+    <property name="last_opened_file_path" value="$PROJECT_DIR$" />
+    <property name="node.js.detected.package.eslint" value="true" />
+    <property name="node.js.detected.package.tslint" value="true" />
+    <property name="node.js.path.for.package.eslint" value="project" />
+    <property name="node.js.path.for.package.tslint" value="project" />
+    <property name="node.js.selected.package.eslint" value="(autodetect)" />
+    <property name="node.js.selected.package.tslint" value="(autodetect)" />
+    <property name="nodejs_package_manager_path" value="npm" />
+    <property name="settings.editor.selected.configurable" value="MTCustomThemeConfigurable" />
+  </component>
+  <component name="RecentsManager">
+    <key name="MoveFile.RECENT_KEYS">
+      <recent name="$PROJECT_DIR$/src/js/smooth-scroll" />
+    </key>
+  </component>
+  <component name="RunManager" selected="Node.js.smooth-scroll.js">
+    <configuration name="smooth-scroll.js" type="NodeJSConfigurationType" temporary="true" nameIsGenerated="true" path-to-js-file="$PROJECT_DIR$/src/js/smooth-scroll/smooth-scroll.js" working-dir="$PROJECT_DIR$/src/js/smooth-scroll">
+      <method v="2" />
+    </configuration>
+    <configuration default="true" type="js.build_tools.gulp">
+      <node-interpreter>project</node-interpreter>
+      <node-options />
+      <gulpfile />
+      <tasks />
+      <arguments />
+      <envs />
+      <method v="2" />
+    </configuration>
+    <configuration name="default" type="js.build_tools.gulp" temporary="true">
+      <node-interpreter>project</node-interpreter>
+      <node-options />
+      <gulpfile>$PROJECT_DIR$/gulpfile.js</gulpfile>
+      <tasks>
+        <task>default</task>
+      </tasks>
+      <arguments />
+      <envs />
+      <method v="2" />
+    </configuration>
+    <configuration name="watch" type="js.build_tools.gulp" temporary="true">
+      <node-interpreter>project</node-interpreter>
+      <node-options />
+      <gulpfile>$PROJECT_DIR$/gulpfile.js</gulpfile>
+      <tasks>
+        <task>watch</task>
+      </tasks>
+      <arguments />
+      <envs />
+      <method v="2" />
+    </configuration>
+    <recent_temporary>
+      <list>
+        <item itemvalue="Gulp.js.default" />
+        <item itemvalue="Gulp.js.watch" />
+        <item itemvalue="Node.js.smooth-scroll.js" />
+      </list>
+    </recent_temporary>
+  </component>
+  <component name="SvnConfiguration">
+    <configuration />
+  </component>
+  <component name="TaskManager">
+    <task active="true" id="Default" summary="Default task">
+      <changelist id="8f992c34-3ae6-4050-ab27-a748dfaa1c39" name="Default Changelist" comment="" />
+      <created>1587832314961</created>
+      <option name="number" value="Default" />
+      <option name="presentableId" value="Default" />
+      <updated>1587832314961</updated>
+      <workItem from="1587832316273" duration="181000" />
+      <workItem from="1587832513267" duration="13958000" />
+      <workItem from="1587888386839" duration="2054000" />
+      <workItem from="1587913328626" duration="169000" />
+      <workItem from="1587913519937" duration="29000" />
+    </task>
+    <servers />
+  </component>
+  <component name="TypeScriptGeneratedFilesManager">
+    <option name="version" value="2" />
+  </component>
+  <component name="Vcs.Log.Tabs.Properties">
+    <option name="TAB_STATES">
+      <map>
+        <entry key="MAIN">
+          <value>
+            <State />
+          </value>
+        </entry>
+      </map>
+    </option>
+    <option name="oldMeFiltersMigrated" value="true" />
+  </component>
+  <component name="WindowStateProjectService">
+    <state x="404" y="312" key="#com.intellij.ide.actions.ChooseComponentsToExportDialog" timestamp="1587832499904">
+      <screen x="0" y="23" width="1440" height="877" />
+    </state>
+    <state x="404" y="312" key="#com.intellij.ide.actions.ChooseComponentsToExportDialog/0.23.1440.877@0.23.1440.877" timestamp="1587832499904" />
+    <state x="100" y="123" width="1240" height="677" key="DiffContextDialog" timestamp="1587835670183">
+      <screen x="0" y="23" width="1440" height="877" />
+    </state>
+    <state x="100" y="123" width="1240" height="677" key="DiffContextDialog/0.23.1440.877@0.23.1440.877" timestamp="1587835670183" />
+    <state width="1415" height="213" key="GridCell.Tab.0.bottom" timestamp="1587888383414">
+      <screen x="0" y="23" width="1440" height="877" />
+    </state>
+    <state width="1415" height="213" key="GridCell.Tab.0.bottom/0.23.1440.877@0.23.1440.877" timestamp="1587888383414" />
+    <state width="1415" height="213" key="GridCell.Tab.0.center" timestamp="1587888383413">
+      <screen x="0" y="23" width="1440" height="877" />
+    </state>
+    <state width="1415" height="213" key="GridCell.Tab.0.center/0.23.1440.877@0.23.1440.877" timestamp="1587888383413" />
+    <state width="1415" height="213" key="GridCell.Tab.0.left" timestamp="1587888383412">
+      <screen x="0" y="23" width="1440" height="877" />
+    </state>
+    <state width="1415" height="213" key="GridCell.Tab.0.left/0.23.1440.877@0.23.1440.877" timestamp="1587888383412" />
+    <state width="1415" height="213" key="GridCell.Tab.0.right" timestamp="1587888383414">
+      <screen x="0" y="23" width="1440" height="877" />
+    </state>
+    <state width="1415" height="213" key="GridCell.Tab.0.right/0.23.1440.877@0.23.1440.877" timestamp="1587888383414" />
+    <state x="480" y="23" key="RollbackChangesDialog" timestamp="1587842752574">
+      <screen x="0" y="23" width="1440" height="877" />
+    </state>
+    <state x="480" y="23" key="RollbackChangesDialog/0.23.1440.877@0.23.1440.877" timestamp="1587842752574" />
+    <state x="0" y="23" width="1216" height="877" key="SettingsEditor" timestamp="1587832711974">
+      <screen x="0" y="23" width="1440" height="877" />
+    </state>
+    <state x="0" y="23" width="1216" height="877" key="SettingsEditor/0.23.1440.877@0.23.1440.877" timestamp="1587832711974" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/src/js/smooth-scroll/smooth-scroll.js b/src/js/smooth-scroll/smooth-scroll.js
index 1833157..0ff0702 100755
--- a/src/js/smooth-scroll/smooth-scroll.js
+++ b/src/js/smooth-scroll/smooth-scroll.js
@@ -181,7 +181,7 @@
 	/**
 	 * Calculate the easing pattern
 	 * @link https://gist.github.com/gre/1650294
-	 * @param {String} type Easing pattern
+	 * @param {Object} settings Easing pattern
 	 * @param {Number} time Time animation should take to complete
 	 * @returns {Number}
 	 */

From 6d27b1eed7684c2056d5e087b5959539339f2f36 Mon Sep 17 00:00:00 2001
From: Bulat Nasibullin <nasibullinbulat95@gmail.com>
Date: Sun, 26 Apr 2020 19:09:34 +0400
Subject: [PATCH 46/51] remove unused param to popstateHandler (Closes #517)

---
 .idea/workspace.xml                   | 2 +-
 src/js/smooth-scroll/smooth-scroll.js | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/.idea/workspace.xml b/.idea/workspace.xml
index c6ceec0..0505d3e 100644
--- a/.idea/workspace.xml
+++ b/.idea/workspace.xml
@@ -123,7 +123,7 @@
       <workItem from="1587832513267" duration="13958000" />
       <workItem from="1587888386839" duration="2054000" />
       <workItem from="1587913328626" duration="169000" />
-      <workItem from="1587913519937" duration="29000" />
+      <workItem from="1587913519937" duration="182000" />
     </task>
     <servers />
   </component>
diff --git a/src/js/smooth-scroll/smooth-scroll.js b/src/js/smooth-scroll/smooth-scroll.js
index 0ff0702..5e17148 100755
--- a/src/js/smooth-scroll/smooth-scroll.js
+++ b/src/js/smooth-scroll/smooth-scroll.js
@@ -545,7 +545,7 @@
 		/**
 		 * Animate scroll on popstate events
 		 */
-		var popstateHandler = function (event) {
+		var popstateHandler = function () {
 
 			// Stop if history.state doesn't exist (ex. if clicking on a broken anchor link).
 			// fixes `Cannot read property 'smoothScroll' of null` error getting thrown.

From abc62e88ee196c1b34072f3aa3d5009a4ebda58b Mon Sep 17 00:00:00 2001
From: Bulat Nasibullin <nasibullinbulat95@gmail.com>
Date: Sun, 26 Apr 2020 19:17:43 +0400
Subject: [PATCH 47/51] remove .idea

---
 .idea/misc.xml          |   6 --
 .idea/modules.xml       |   8 --
 .idea/smooth-scroll.iml |  12 ---
 .idea/vcs.xml           |   6 --
 .idea/workspace.xml     | 179 ----------------------------------------
 5 files changed, 211 deletions(-)
 delete mode 100644 .idea/misc.xml
 delete mode 100644 .idea/modules.xml
 delete mode 100644 .idea/smooth-scroll.iml
 delete mode 100644 .idea/vcs.xml
 delete mode 100644 .idea/workspace.xml

diff --git a/.idea/misc.xml b/.idea/misc.xml
deleted file mode 100644
index 28a804d..0000000
--- a/.idea/misc.xml
+++ /dev/null
@@ -1,6 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="JavaScriptSettings">
-    <option name="languageLevel" value="ES6" />
-  </component>
-</project>
\ No newline at end of file
diff --git a/.idea/modules.xml b/.idea/modules.xml
deleted file mode 100644
index 2700fac..0000000
--- a/.idea/modules.xml
+++ /dev/null
@@ -1,8 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="ProjectModuleManager">
-    <modules>
-      <module fileurl="file://$PROJECT_DIR$/.idea/smooth-scroll.iml" filepath="$PROJECT_DIR$/.idea/smooth-scroll.iml" />
-    </modules>
-  </component>
-</project>
\ No newline at end of file
diff --git a/.idea/smooth-scroll.iml b/.idea/smooth-scroll.iml
deleted file mode 100644
index 24643cc..0000000
--- a/.idea/smooth-scroll.iml
+++ /dev/null
@@ -1,12 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<module type="WEB_MODULE" version="4">
-  <component name="NewModuleRootManager">
-    <content url="file://$MODULE_DIR$">
-      <excludeFolder url="file://$MODULE_DIR$/.tmp" />
-      <excludeFolder url="file://$MODULE_DIR$/temp" />
-      <excludeFolder url="file://$MODULE_DIR$/tmp" />
-    </content>
-    <orderEntry type="inheritedJdk" />
-    <orderEntry type="sourceFolder" forTests="false" />
-  </component>
-</module>
\ No newline at end of file
diff --git a/.idea/vcs.xml b/.idea/vcs.xml
deleted file mode 100644
index 94a25f7..0000000
--- a/.idea/vcs.xml
+++ /dev/null
@@ -1,6 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="VcsDirectoryMappings">
-    <mapping directory="$PROJECT_DIR$" vcs="Git" />
-  </component>
-</project>
\ No newline at end of file
diff --git a/.idea/workspace.xml b/.idea/workspace.xml
deleted file mode 100644
index 0505d3e..0000000
--- a/.idea/workspace.xml
+++ /dev/null
@@ -1,179 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="BranchesTreeState">
-    <expand>
-      <path>
-        <item name="ROOT" type="e8cecc67:BranchNodeDescriptor" />
-        <item name="LOCAL_ROOT" type="e8cecc67:BranchNodeDescriptor" />
-      </path>
-      <path>
-        <item name="ROOT" type="e8cecc67:BranchNodeDescriptor" />
-        <item name="REMOTE_ROOT" type="e8cecc67:BranchNodeDescriptor" />
-      </path>
-      <path>
-        <item name="ROOT" type="e8cecc67:BranchNodeDescriptor" />
-        <item name="REMOTE_ROOT" type="e8cecc67:BranchNodeDescriptor" />
-        <item name="GROUP_NODE:origin" type="e8cecc67:BranchNodeDescriptor" />
-      </path>
-    </expand>
-    <select />
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-    <property name="RunOnceActivity.OpenProjectViewOnStart" value="true" />
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-    <property name="node.js.path.for.package.eslint" value="project" />
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-      <screen x="0" y="23" width="1440" height="877" />
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-      <screen x="0" y="23" width="1440" height="877" />
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From 4eec4761f18d57703acaae225b45da177f101991 Mon Sep 17 00:00:00 2001
From: cferdinandi <chris@gomakethings.com>
Date: Sun, 26 Apr 2020 15:47:18 -0400
Subject: [PATCH 48/51] Updated version number

---
 dist/smooth-scroll.js                 | 14 ++++-----
 dist/smooth-scroll.min.js             |  4 +--
 dist/smooth-scroll.polyfills.js       | 14 ++++-----
 dist/smooth-scroll.polyfills.min.js   |  4 +--
 package-lock.json                     | 43 +++++++++++++++++++--------
 package.json                          |  2 +-
 src/js/smooth-scroll/smooth-scroll.js |  8 ++---
 7 files changed, 48 insertions(+), 41 deletions(-)

diff --git a/dist/smooth-scroll.js b/dist/smooth-scroll.js
index c4179a7..4ccb58c 100755
--- a/dist/smooth-scroll.js
+++ b/dist/smooth-scroll.js
@@ -1,5 +1,5 @@
 /*!
- * smooth-scroll v16.1.2
+ * smooth-scroll v16.1.4
  * Animate scrolling to anchor links
  * (c) 2020 Chris Ferdinandi
  * MIT License
@@ -189,8 +189,8 @@
 	/**
 	 * Calculate the easing pattern
 	 * @link https://gist.github.com/gre/1650294
-	 * @param {String} type Easing pattern
-	 * @param {Number} time Time animation should take to complete
+	 * @param   {Object} settings Easing pattern
+	 * @param   {Number} time     Time animation should take to complete
 	 * @returns {Number}
 	 */
 	var easingPattern = function (settings, time) {
@@ -488,7 +488,7 @@
 
 			// If the user prefers reduced motion, jump to location
 			if (reduceMotion()) {
-				window.scrollTo(0, Math.floor(endLocation));
+				adjustFocus(anchor, Math.floor(endLocation), false);
 				return;
 			}
 
@@ -553,7 +553,7 @@
 		/**
 		 * Animate scroll on popstate events
 		 */
-		var popstateHandler = function (event) {
+		var popstateHandler = function () {
 
 			// Stop if history.state doesn't exist (ex. if clicking on a broken anchor link).
 			// fixes `Cannot read property 'smoothScroll' of null` error getting thrown.
@@ -562,10 +562,6 @@
 			// Only run if state is a popstate record for this instantiation
 			if (!history.state.smoothScroll || history.state.smoothScroll !== JSON.stringify(settings)) return;
 
-			// Only run if state includes an anchor
-
-			// if (!history.state.anchor && history.state.anchor !== 0) return;
-
 			// Get the anchor
 			var anchor = history.state.anchor;
 			if (typeof anchor === 'string' && anchor) {
diff --git a/dist/smooth-scroll.min.js b/dist/smooth-scroll.min.js
index 3899799..a830bae 100755
--- a/dist/smooth-scroll.min.js
+++ b/dist/smooth-scroll.min.js
@@ -1,2 +1,2 @@
-/*! smooth-scroll v16.1.2 | (c) 2020 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
-!(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(w){"use strict";var L={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,speedAsDuration:!1,durationMax:null,durationMin:null,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},H=function(){var n={};return Array.prototype.forEach.call(arguments,(function(e){for(var t in e){if(!e.hasOwnProperty(t))return;n[t]=e[t]}})),n},r=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,a=-1,r="",i=n.charCodeAt(0);++a<o;){if(0===(t=n.charCodeAt(a)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");1<=t&&t<=31||127==t||0===a&&48<=t&&t<=57||1===a&&48<=t&&t<=57&&45===i?r+="\\"+t.toString(16)+" 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\ No newline at end of file
+/*! smooth-scroll v16.1.4 | (c) 2020 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
+!(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(C){"use strict";var w={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,speedAsDuration:!1,durationMax:null,durationMin:null,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},L=function(){var n={};return Array.prototype.forEach.call(arguments,(function(e){for(var t in e){if(!e.hasOwnProperty(t))return;n[t]=e[t]}})),n},r=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,a=-1,r="",i=n.charCodeAt(0);++a<o;){if(0===(t=n.charCodeAt(a)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");1<=t&&t<=31||127==t||0===a&&48<=t&&t<=57||1===a&&48<=t&&t<=57&&45===i?r+="\\"+t.toString(16)+" 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A.cancelScroll(!0),x(a,t,s),Q("scrollStop",i,a,r),!(M=l=null)})(f,g)||(M=C.requestAnimationFrame(b),l=e)};0===C.pageYOffset&&C.scrollTo(0,0),m=a,h=i,s||history.pushState&&h.updateURL&&history.pushState({smoothScroll:JSON.stringify(h),anchor:m.id},document.title,m===document.documentElement?"#top":"#"+m.id),"matchMedia"in C&&C.matchMedia("(prefers-reduced-motion)").matches?x(a,Math.floor(g),!1):(Q("scrollStart",i,a,r),A.cancelScroll(!0),C.requestAnimationFrame(b))}};var t=function(e){if(!e.defaultPrevented&&!(0!==e.button||e.metaKey||e.ctrlKey||e.shiftKey)&&"closest"in e.target&&(a=e.target.closest(o))&&"a"===a.tagName.toLowerCase()&&!e.target.closest(O.ignore)&&a.hostname===C.location.hostname&&a.pathname===C.location.pathname&&/#/.test(a.href)){var t,n;try{t=r(decodeURIComponent(a.hash))}catch(e){t=r(a.hash)}if("#"===t){if(!O.topOnEmptyHash)return;n=document.documentElement}else n=document.querySelector(t);(n=n||"#top"!==t?n:document.documentElement)&&(e.preventDefault(),(function(e){if(history.replaceState&&e.updateURL&&!history.state){var t=C.location.hash;t=t||"",history.replaceState({smoothScroll:JSON.stringify(e),anchor:t||C.pageYOffset},document.title,t||C.location.href)}})(O),A.animateScroll(n,a))}},n=function(){if(null!==history.state&&history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(O)){var e=history.state.anchor;"string"==typeof e&&e&&!(e=document.querySelector(r(history.state.anchor)))||A.animateScroll(e,null,{updateURL:!1})}};A.destroy=function(){O&&(document.removeEventListener("click",t,!1),C.removeEventListener("popstate",n,!1),A.cancelScroll(),M=I=a=O=null)};return (function(){if(!("querySelector"in document&&"addEventListener"in C&&"requestAnimationFrame"in C&&"closest"in C.Element.prototype))throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";A.destroy(),O=L(w,e||{}),I=O.header?document.querySelector(O.header):null,document.addEventListener("click",t,!1),O.updateURL&&O.popstate&&C.addEventListener("popstate",n,!1)})(),A}}));
\ No newline at end of file
diff --git a/dist/smooth-scroll.polyfills.js b/dist/smooth-scroll.polyfills.js
index 3ffe249..56600a5 100755
--- a/dist/smooth-scroll.polyfills.js
+++ b/dist/smooth-scroll.polyfills.js
@@ -1,5 +1,5 @@
 /*!
- * smooth-scroll v16.1.2
+ * smooth-scroll v16.1.4
  * Animate scrolling to anchor links
  * (c) 2020 Chris Ferdinandi
  * MIT License
@@ -259,8 +259,8 @@ if (window.Element && !Element.prototype.closest) {
 	/**
 	 * Calculate the easing pattern
 	 * @link https://gist.github.com/gre/1650294
-	 * @param {String} type Easing pattern
-	 * @param {Number} time Time animation should take to complete
+	 * @param   {Object} settings Easing pattern
+	 * @param   {Number} time     Time animation should take to complete
 	 * @returns {Number}
 	 */
 	var easingPattern = function (settings, time) {
@@ -558,7 +558,7 @@ if (window.Element && !Element.prototype.closest) {
 
 			// If the user prefers reduced motion, jump to location
 			if (reduceMotion()) {
-				window.scrollTo(0, Math.floor(endLocation));
+				adjustFocus(anchor, Math.floor(endLocation), false);
 				return;
 			}
 
@@ -623,7 +623,7 @@ if (window.Element && !Element.prototype.closest) {
 		/**
 		 * Animate scroll on popstate events
 		 */
-		var popstateHandler = function (event) {
+		var popstateHandler = function () {
 
 			// Stop if history.state doesn't exist (ex. if clicking on a broken anchor link).
 			// fixes `Cannot read property 'smoothScroll' of null` error getting thrown.
@@ -632,10 +632,6 @@ if (window.Element && !Element.prototype.closest) {
 			// Only run if state is a popstate record for this instantiation
 			if (!history.state.smoothScroll || history.state.smoothScroll !== JSON.stringify(settings)) return;
 
-			// Only run if state includes an anchor
-
-			// if (!history.state.anchor && history.state.anchor !== 0) return;
-
 			// Get the anchor
 			var anchor = history.state.anchor;
 			if (typeof anchor === 'string' && anchor) {
diff --git a/dist/smooth-scroll.polyfills.min.js b/dist/smooth-scroll.polyfills.min.js
index 311685a..2174e57 100755
--- a/dist/smooth-scroll.polyfills.min.js
+++ b/dist/smooth-scroll.polyfills.min.js
@@ -1,2 +1,2 @@
-/*! smooth-scroll v16.1.2 | (c) 2020 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
-window.Element&&!Element.prototype.closest&&(Element.prototype.closest=function(e){var t,n=(this.document||this.ownerDocument).querySelectorAll(e),o=this;do{for(t=n.length;0<=--t&&n.item(t)!==o;);}while(t<0&&(o=o.parentElement));return o}),(function(){if("function"==typeof window.CustomEvent)return;function e(e,t){t=t||{bubbles:!1,cancelable:!1,detail:void 0};var n=document.createEvent("CustomEvent");return n.initCustomEvent(e,t.bubbles,t.cancelable,t.detail),n}e.prototype=window.Event.prototype,window.CustomEvent=e})(),(function(){for(var r=0,e=["ms","moz","webkit","o"],t=0;t<e.length&&!window.requestAnimationFrame;++t)window.requestAnimationFrame=window[e[t]+"RequestAnimationFrame"],window.cancelAnimationFrame=window[e[t]+"CancelAnimationFrame"]||window[e[t]+"CancelRequestAnimationFrame"];window.requestAnimationFrame||(window.requestAnimationFrame=function(e,t){var n=(new Date).getTime(),o=Math.max(0,16-(n-r)),a=window.setTimeout((function(){e(n+o)}),o);return r=n+o,a}),window.cancelAnimationFrame||(window.cancelAnimationFrame=function(e){clearTimeout(e)})})(),(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(q){"use strict";var I={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,speedAsDuration:!1,durationMax:null,durationMin:null,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},F=function(){var n={};return Array.prototype.forEach.call(arguments,(function(e){for(var t in e){if(!e.hasOwnProperty(t))return;n[t]=e[t]}})),n},r=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,a=-1,r="",i=n.charCodeAt(0);++a<o;){if(0===(t=n.charCodeAt(a)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");1<=t&&t<=31||127==t||0===a&&48<=t&&t<=57||1===a&&48<=t&&t<=57&&45===i?r+="\\"+t.toString(16)+" ":r+=128<=t||45===t||95===t||48<=t&&t<=57||65<=t&&t<=90||97<=t&&t<=122?n.charAt(a):"\\"+n.charAt(a)}return"#"+r},L=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},x=function(e){return e?(t=e,parseInt(q.getComputedStyle(t).height,10)+e.offsetTop):0;var t},H=function(e,t,n,o){if(t.emitEvents&&"function"==typeof q.CustomEvent){var a=new CustomEvent(e,{bubbles:!0,detail:{anchor:n,toggle:o}});document.dispatchEvent(a)}};return function(o,e){var A,a,O,C,M={};M.cancelScroll=function(e){cancelAnimationFrame(C),C=null,e||H("scrollCancel",A)},M.animateScroll=function(i,c,e){M.cancelScroll();var s=F(A||I,e||{}),u="[object Number]"===Object.prototype.toString.call(i),t=u||!i.tagName?null:i;if(u||t){var l=q.pageYOffset;s.header&&!O&&(O=document.querySelector(s.header));var n,o,a,m,r,d,f,h,p=x(O),g=u?i:(function(e,t,n,o){var a=0;if(e.offsetParent)for(;a+=e.offsetTop,e=e.offsetParent;);return a=Math.max(a-t-n,0),o&&(a=Math.min(a,L()-q.innerHeight)),a})(t,p,parseInt("function"==typeof s.offset?s.offset(i,c):s.offset,10),s.clip),y=g-l,v=L(),w=0,S=(n=y,a=(o=s).speedAsDuration?o.speed:Math.abs(n/1e3*o.speed),o.durationMax&&a>o.durationMax?o.durationMax:o.durationMin&&a<o.durationMin?o.durationMin:parseInt(a,10)),E=function(e,t){var n,o,a,r=q.pageYOffset;if(e==t||r==t||(l<t&&q.innerHeight+r)>=v)return M.cancelScroll(!0),o=t,a=u,0===(n=i)&&document.body.focus(),a||(n.focus(),document.activeElement!==n&&(n.setAttribute("tabindex","-1"),n.focus(),n.style.outline="none"),q.scrollTo(0,o)),H("scrollStop",s,i,c),!(C=m=null)},b=function(e){var t,n,o;m||(m=e),w+=e-m,d=l+y*(n=r=1<(r=0===S?0:w/S)?1:r,"easeInQuad"===(t=s).easing&&(o=n*n),"easeOutQuad"===t.easing&&(o=n*(2-n)),"easeInOutQuad"===t.easing&&(o=n<.5?2*n*n:(4-2*n)*n-1),"easeInCubic"===t.easing&&(o=n*n*n),"easeOutCubic"===t.easing&&(o=--n*n*n+1),"easeInOutCubic"===t.easing&&(o=n<.5?4*n*n*n:(n-1)*(2*n-2)*(2*n-2)+1),"easeInQuart"===t.easing&&(o=n*n*n*n),"easeOutQuart"===t.easing&&(o=1- --n*n*n*n),"easeInOutQuart"===t.easing&&(o=n<.5?8*n*n*n*n:1-8*--n*n*n*n),"easeInQuint"===t.easing&&(o=n*n*n*n*n),"easeOutQuint"===t.easing&&(o=1+--n*n*n*n*n),"easeInOutQuint"===t.easing&&(o=n<.5?16*n*n*n*n*n:1+16*--n*n*n*n*n),t.customEasing&&(o=t.customEasing(n)),o||n),q.scrollTo(0,Math.floor(d)),E(d,g)||(C=q.requestAnimationFrame(b),m=e)};0===q.pageYOffset&&q.scrollTo(0,0),f=i,h=s,u||history.pushState&&h.updateURL&&history.pushState({smoothScroll:JSON.stringify(h),anchor:f.id},document.title,f===document.documentElement?"#top":"#"+f.id),"matchMedia"in q&&q.matchMedia("(prefers-reduced-motion)").matches?q.scrollTo(0,Math.floor(g)):(H("scrollStart",s,i,c),M.cancelScroll(!0),q.requestAnimationFrame(b))}};var t=function(e){if(!e.defaultPrevented&&!(0!==e.button||e.metaKey||e.ctrlKey||e.shiftKey)&&"closest"in e.target&&(a=e.target.closest(o))&&"a"===a.tagName.toLowerCase()&&!e.target.closest(A.ignore)&&a.hostname===q.location.hostname&&a.pathname===q.location.pathname&&/#/.test(a.href)){var t,n;try{t=r(decodeURIComponent(a.hash))}catch(e){t=r(a.hash)}if("#"===t){if(!A.topOnEmptyHash)return;n=document.documentElement}else n=document.querySelector(t);(n=n||"#top"!==t?n:document.documentElement)&&(e.preventDefault(),(function(e){if(history.replaceState&&e.updateURL&&!history.state){var t=q.location.hash;t=t||"",history.replaceState({smoothScroll:JSON.stringify(e),anchor:t||q.pageYOffset},document.title,t||q.location.href)}})(A),M.animateScroll(n,a))}},n=function(e){if(null!==history.state&&history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(A)){var t=history.state.anchor;"string"==typeof t&&t&&!(t=document.querySelector(r(history.state.anchor)))||M.animateScroll(t,null,{updateURL:!1})}};M.destroy=function(){A&&(document.removeEventListener("click",t,!1),q.removeEventListener("popstate",n,!1),M.cancelScroll(),C=O=a=A=null)};return (function(){if(!("querySelector"in document&&"addEventListener"in q&&"requestAnimationFrame"in q&&"closest"in q.Element.prototype))throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";M.destroy(),A=F(I,e||{}),O=A.header?document.querySelector(A.header):null,document.addEventListener("click",t,!1),A.updateURL&&A.popstate&&q.addEventListener("popstate",n,!1)})(),M}}));
\ No newline at end of file
+/*! smooth-scroll v16.1.4 | (c) 2020 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
+window.Element&&!Element.prototype.closest&&(Element.prototype.closest=function(e){var t,n=(this.document||this.ownerDocument).querySelectorAll(e),o=this;do{for(t=n.length;0<=--t&&n.item(t)!==o;);}while(t<0&&(o=o.parentElement));return o}),(function(){if("function"==typeof window.CustomEvent)return;function e(e,t){t=t||{bubbles:!1,cancelable:!1,detail:void 0};var n=document.createEvent("CustomEvent");return n.initCustomEvent(e,t.bubbles,t.cancelable,t.detail),n}e.prototype=window.Event.prototype,window.CustomEvent=e})(),(function(){for(var r=0,e=["ms","moz","webkit","o"],t=0;t<e.length&&!window.requestAnimationFrame;++t)window.requestAnimationFrame=window[e[t]+"RequestAnimationFrame"],window.cancelAnimationFrame=window[e[t]+"CancelAnimationFrame"]||window[e[t]+"CancelRequestAnimationFrame"];window.requestAnimationFrame||(window.requestAnimationFrame=function(e,t){var n=(new Date).getTime(),o=Math.max(0,16-(n-r)),a=window.setTimeout((function(){e(n+o)}),o);return r=n+o,a}),window.cancelAnimationFrame||(window.cancelAnimationFrame=function(e){clearTimeout(e)})})(),(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(M){"use strict";var q={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,speedAsDuration:!1,durationMax:null,durationMin:null,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},I=function(){var n={};return Array.prototype.forEach.call(arguments,(function(e){for(var t in e){if(!e.hasOwnProperty(t))return;n[t]=e[t]}})),n},r=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,a=-1,r="",i=n.charCodeAt(0);++a<o;){if(0===(t=n.charCodeAt(a)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");1<=t&&t<=31||127==t||0===a&&48<=t&&t<=57||1===a&&48<=t&&t<=57&&45===i?r+="\\"+t.toString(16)+" ":r+=128<=t||45===t||95===t||48<=t&&t<=57||65<=t&&t<=90||97<=t&&t<=122?n.charAt(a):"\\"+n.charAt(a)}return"#"+r},F=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},L=function(e){return e?(t=e,parseInt(M.getComputedStyle(t).height,10)+e.offsetTop):0;var t},x=function(e,t,n){0===e&&document.body.focus(),n||(e.focus(),document.activeElement!==e&&(e.setAttribute("tabindex","-1"),e.focus(),e.style.outline="none"),M.scrollTo(0,t))},H=function(e,t,n,o){if(t.emitEvents&&"function"==typeof M.CustomEvent){var a=new CustomEvent(e,{bubbles:!0,detail:{anchor:n,toggle:o}});document.dispatchEvent(a)}};return function(o,e){var b,a,A,O,C={};C.cancelScroll=function(e){cancelAnimationFrame(O),O=null,e||H("scrollCancel",b)},C.animateScroll=function(a,r,e){C.cancelScroll();var i=I(b||q,e||{}),c="[object Number]"===Object.prototype.toString.call(a),t=c||!a.tagName?null:a;if(c||t){var s=M.pageYOffset;i.header&&!A&&(A=document.querySelector(i.header));var n,o,u,l,m,d,f,h,p=L(A),g=c?a:(function(e,t,n,o){var a=0;if(e.offsetParent)for(;a+=e.offsetTop,e=e.offsetParent;);return a=Math.max(a-t-n,0),o&&(a=Math.min(a,F()-M.innerHeight)),a})(t,p,parseInt("function"==typeof i.offset?i.offset(a,r):i.offset,10),i.clip),y=g-s,v=F(),w=0,S=(n=y,u=(o=i).speedAsDuration?o.speed:Math.abs(n/1e3*o.speed),o.durationMax&&u>o.durationMax?o.durationMax:o.durationMin&&u<o.durationMin?o.durationMin:parseInt(u,10)),E=function(e){var t,n,o;l||(l=e),w+=e-l,d=s+y*(n=m=1<(m=0===S?0:w/S)?1:m,"easeInQuad"===(t=i).easing&&(o=n*n),"easeOutQuad"===t.easing&&(o=n*(2-n)),"easeInOutQuad"===t.easing&&(o=n<.5?2*n*n:(4-2*n)*n-1),"easeInCubic"===t.easing&&(o=n*n*n),"easeOutCubic"===t.easing&&(o=--n*n*n+1),"easeInOutCubic"===t.easing&&(o=n<.5?4*n*n*n:(n-1)*(2*n-2)*(2*n-2)+1),"easeInQuart"===t.easing&&(o=n*n*n*n),"easeOutQuart"===t.easing&&(o=1- --n*n*n*n),"easeInOutQuart"===t.easing&&(o=n<.5?8*n*n*n*n:1-8*--n*n*n*n),"easeInQuint"===t.easing&&(o=n*n*n*n*n),"easeOutQuint"===t.easing&&(o=1+--n*n*n*n*n),"easeInOutQuint"===t.easing&&(o=n<.5?16*n*n*n*n*n:1+16*--n*n*n*n*n),t.customEasing&&(o=t.customEasing(n)),o||n),M.scrollTo(0,Math.floor(d)),(function(e,t){var n=M.pageYOffset;if(e==t||n==t||(s<t&&M.innerHeight+n)>=v)return C.cancelScroll(!0),x(a,t,c),H("scrollStop",i,a,r),!(O=l=null)})(d,g)||(O=M.requestAnimationFrame(E),l=e)};0===M.pageYOffset&&M.scrollTo(0,0),f=a,h=i,c||history.pushState&&h.updateURL&&history.pushState({smoothScroll:JSON.stringify(h),anchor:f.id},document.title,f===document.documentElement?"#top":"#"+f.id),"matchMedia"in M&&M.matchMedia("(prefers-reduced-motion)").matches?x(a,Math.floor(g),!1):(H("scrollStart",i,a,r),C.cancelScroll(!0),M.requestAnimationFrame(E))}};var t=function(e){if(!e.defaultPrevented&&!(0!==e.button||e.metaKey||e.ctrlKey||e.shiftKey)&&"closest"in e.target&&(a=e.target.closest(o))&&"a"===a.tagName.toLowerCase()&&!e.target.closest(b.ignore)&&a.hostname===M.location.hostname&&a.pathname===M.location.pathname&&/#/.test(a.href)){var t,n;try{t=r(decodeURIComponent(a.hash))}catch(e){t=r(a.hash)}if("#"===t){if(!b.topOnEmptyHash)return;n=document.documentElement}else n=document.querySelector(t);(n=n||"#top"!==t?n:document.documentElement)&&(e.preventDefault(),(function(e){if(history.replaceState&&e.updateURL&&!history.state){var t=M.location.hash;t=t||"",history.replaceState({smoothScroll:JSON.stringify(e),anchor:t||M.pageYOffset},document.title,t||M.location.href)}})(b),C.animateScroll(n,a))}},n=function(){if(null!==history.state&&history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(b)){var e=history.state.anchor;"string"==typeof e&&e&&!(e=document.querySelector(r(history.state.anchor)))||C.animateScroll(e,null,{updateURL:!1})}};C.destroy=function(){b&&(document.removeEventListener("click",t,!1),M.removeEventListener("popstate",n,!1),C.cancelScroll(),O=A=a=b=null)};return (function(){if(!("querySelector"in document&&"addEventListener"in M&&"requestAnimationFrame"in M&&"closest"in M.Element.prototype))throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";C.destroy(),b=I(q,e||{}),A=b.header?document.querySelector(b.header):null,document.addEventListener("click",t,!1),b.updateURL&&b.popstate&&M.addEventListener("popstate",n,!1)})(),C}}));
\ No newline at end of file
diff --git a/package-lock.json b/package-lock.json
index fd896ae..abb7859 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
 	"name": "smooth-scroll",
-	"version": "15.1.0",
+	"version": "16.1.2",
 	"lockfileVersion": 1,
 	"requires": true,
 	"dependencies": {
@@ -2457,7 +2457,8 @@
 				"ansi-regex": {
 					"version": "2.1.1",
 					"bundled": true,
-					"dev": true
+					"dev": true,
+					"optional": true
 				},
 				"aproba": {
 					"version": "1.2.0",
@@ -2478,12 +2479,14 @@
 				"balanced-match": {
 					"version": "1.0.0",
 					"bundled": true,
-					"dev": true
+					"dev": true,
+					"optional": true
 				},
 				"brace-expansion": {
 					"version": "1.1.11",
 					"bundled": true,
 					"dev": true,
+					"optional": true,
 					"requires": {
 						"balanced-match": "^1.0.0",
 						"concat-map": "0.0.1"
@@ -2498,17 +2501,20 @@
 				"code-point-at": {
 					"version": "1.1.0",
 					"bundled": true,
-					"dev": true
+					"dev": true,
+					"optional": true
 				},
 				"concat-map": {
 					"version": "0.0.1",
 					"bundled": true,
-					"dev": true
+					"dev": true,
+					"optional": true
 				},
 				"console-control-strings": {
 					"version": "1.1.0",
 					"bundled": true,
-					"dev": true
+					"dev": true,
+					"optional": true
 				},
 				"core-util-is": {
 					"version": "1.0.2",
@@ -2625,7 +2631,8 @@
 				"inherits": {
 					"version": "2.0.3",
 					"bundled": true,
-					"dev": true
+					"dev": true,
+					"optional": true
 				},
 				"ini": {
 					"version": "1.3.5",
@@ -2637,6 +2644,7 @@
 					"version": "1.0.0",
 					"bundled": true,
 					"dev": true,
+					"optional": true,
 					"requires": {
 						"number-is-nan": "^1.0.0"
 					}
@@ -2651,6 +2659,7 @@
 					"version": "3.0.4",
 					"bundled": true,
 					"dev": true,
+					"optional": true,
 					"requires": {
 						"brace-expansion": "^1.1.7"
 					}
@@ -2658,12 +2667,14 @@
 				"minimist": {
 					"version": "0.0.8",
 					"bundled": true,
-					"dev": true
+					"dev": true,
+					"optional": true
 				},
 				"minipass": {
 					"version": "2.2.4",
 					"bundled": true,
 					"dev": true,
+					"optional": true,
 					"requires": {
 						"safe-buffer": "^5.1.1",
 						"yallist": "^3.0.0"
@@ -2682,6 +2693,7 @@
 					"version": "0.5.1",
 					"bundled": true,
 					"dev": true,
+					"optional": true,
 					"requires": {
 						"minimist": "0.0.8"
 					}
@@ -2762,7 +2774,8 @@
 				"number-is-nan": {
 					"version": "1.0.1",
 					"bundled": true,
-					"dev": true
+					"dev": true,
+					"optional": true
 				},
 				"object-assign": {
 					"version": "4.1.1",
@@ -2774,6 +2787,7 @@
 					"version": "1.4.0",
 					"bundled": true,
 					"dev": true,
+					"optional": true,
 					"requires": {
 						"wrappy": "1"
 					}
@@ -2859,7 +2873,8 @@
 				"safe-buffer": {
 					"version": "5.1.1",
 					"bundled": true,
-					"dev": true
+					"dev": true,
+					"optional": true
 				},
 				"safer-buffer": {
 					"version": "2.1.2",
@@ -2895,6 +2910,7 @@
 					"version": "1.0.2",
 					"bundled": true,
 					"dev": true,
+					"optional": true,
 					"requires": {
 						"code-point-at": "^1.0.0",
 						"is-fullwidth-code-point": "^1.0.0",
@@ -2914,6 +2930,7 @@
 					"version": "3.0.1",
 					"bundled": true,
 					"dev": true,
+					"optional": true,
 					"requires": {
 						"ansi-regex": "^2.0.0"
 					}
@@ -2957,12 +2974,14 @@
 				"wrappy": {
 					"version": "1.0.2",
 					"bundled": true,
-					"dev": true
+					"dev": true,
+					"optional": true
 				},
 				"yallist": {
 					"version": "3.0.2",
 					"bundled": true,
-					"dev": true
+					"dev": true,
+					"optional": true
 				}
 			}
 		},
diff --git a/package.json b/package.json
index f1e82eb..a306cf1 100755
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
 	"name": "smooth-scroll",
-	"version": "16.1.2",
+	"version": "16.1.4",
 	"description": "Animate scrolling to anchor links",
 	"main": "./dist/smooth-scroll.polyfills.min.js",
 	"author": {
diff --git a/src/js/smooth-scroll/smooth-scroll.js b/src/js/smooth-scroll/smooth-scroll.js
index 5e17148..16f7b0a 100755
--- a/src/js/smooth-scroll/smooth-scroll.js
+++ b/src/js/smooth-scroll/smooth-scroll.js
@@ -181,8 +181,8 @@
 	/**
 	 * Calculate the easing pattern
 	 * @link https://gist.github.com/gre/1650294
-	 * @param {Object} settings Easing pattern
-	 * @param {Number} time Time animation should take to complete
+	 * @param   {Object} settings Easing pattern
+	 * @param   {Number} time     Time animation should take to complete
 	 * @returns {Number}
 	 */
 	var easingPattern = function (settings, time) {
@@ -554,10 +554,6 @@
 			// Only run if state is a popstate record for this instantiation
 			if (!history.state.smoothScroll || history.state.smoothScroll !== JSON.stringify(settings)) return;
 
-			// Only run if state includes an anchor
-
-			// if (!history.state.anchor && history.state.anchor !== 0) return;
-
 			// Get the anchor
 			var anchor = history.state.anchor;
 			if (typeof anchor === 'string' && anchor) {

From 9b5fb1108ea5091e2e7bba9adf33c08cf1917f7c Mon Sep 17 00:00:00 2001
From: cferdinandi <chris@gomakethings.com>
Date: Mon, 27 Apr 2020 15:37:00 -0400
Subject: [PATCH 49/51] Updated build

---
 dist/smooth-scroll.js                         |    39 +-
 dist/smooth-scroll.min.js                     |     4 +-
 dist/smooth-scroll.polyfills.js               |   166 +-
 dist/smooth-scroll.polyfills.min.js           |    12 +-
 package-lock.json                             | 13020 +++++-----------
 package.json                                  |    60 +-
 rollup.config.js                              |    72 +
 .../smooth-scroll => }/_closest.polyfill.js   |     0
 .../_customEvent.polyfill.js                  |     0
 .../_requestAnimationFrame.polyfill.js        |     0
 src/copy/index.html                           |   149 -
 src/copy/jump-to-top.html                     |    60 -
 src/copy/speed.html                           |    69 -
 src/core.js                                   |   622 +
 src/js/smooth-scroll/smooth-scroll.js         |   638 -
 src/smooth-scroll.js                          |     3 +
 src/smooth-scroll.polyfills.js                |     6 +
 17 files changed, 4795 insertions(+), 10125 deletions(-)
 mode change 100755 => 100644 dist/smooth-scroll.js
 mode change 100755 => 100644 dist/smooth-scroll.min.js
 mode change 100755 => 100644 dist/smooth-scroll.polyfills.js
 mode change 100755 => 100644 dist/smooth-scroll.polyfills.min.js
 create mode 100644 rollup.config.js
 rename src/{js/smooth-scroll => }/_closest.polyfill.js (100%)
 rename src/{js/smooth-scroll => }/_customEvent.polyfill.js (100%)
 rename src/{js/smooth-scroll => }/_requestAnimationFrame.polyfill.js (100%)
 delete mode 100755 src/copy/index.html
 delete mode 100644 src/copy/jump-to-top.html
 delete mode 100644 src/copy/speed.html
 create mode 100755 src/core.js
 delete mode 100755 src/js/smooth-scroll/smooth-scroll.js
 create mode 100755 src/smooth-scroll.js
 create mode 100755 src/smooth-scroll.polyfills.js

diff --git a/dist/smooth-scroll.js b/dist/smooth-scroll.js
old mode 100755
new mode 100644
index 4ccb58c..4984899
--- a/dist/smooth-scroll.js
+++ b/dist/smooth-scroll.js
@@ -1,24 +1,9 @@
-/*!
- * smooth-scroll v16.1.4
- * Animate scrolling to anchor links
- * (c) 2020 Chris Ferdinandi
- * MIT License
- * http://github.com/cferdinandi/smooth-scroll
- */
-
-(function (root, factory) {
-	if (typeof define === 'function' && define.amd) {
-		define([], (function () {
-			return factory(root);
-		}));
-	} else if (typeof exports === 'object') {
-		module.exports = factory(root);
-	} else {
-		root.SmoothScroll = factory(root);
-	}
-})(typeof global !== 'undefined' ? global : typeof window !== 'undefined' ? window : this, (function (window) {
-
-	'use strict';
+/*! SmoothScroll v16.1.4 | (c) 2020 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
+(function (global, factory) {
+	typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
+	typeof define === 'function' && define.amd ? define(factory) :
+	(global = global || self, global.SmoothScroll = factory());
+}(this, (function () { 'use strict';
 
 	//
 	// Default settings
@@ -77,12 +62,12 @@
 	 */
 	var extend = function () {
 		var merged = {};
-		Array.prototype.forEach.call(arguments, (function (obj) {
+		Array.prototype.forEach.call(arguments, function (obj) {
 			for (var key in obj) {
 				if (!obj.hasOwnProperty(key)) return;
 				merged[key] = obj[key];
 			}
-		}));
+		});
 		return merged;
 	};
 
@@ -249,7 +234,7 @@
 		if (clip) {
 			location = Math.min(location, getDocumentHeight() - window.innerHeight);
 		}
- 		return location;
+			return location;
 	};
 
 	/**
@@ -379,7 +364,7 @@
 		//
 
 		var smoothScroll = {}; // Object for public APIs
-		var settings, anchor, toggle, fixedHeader, eventTimeout, animationInterval;
+		var settings, toggle, fixedHeader, animationInterval;
 
 
 		//
@@ -591,10 +576,8 @@
 
 			// Reset variables
 			settings = null;
-			anchor = null;
 			toggle = null;
 			fixedHeader = null;
-			eventTimeout = null;
 			animationInterval = null;
 
 		};
@@ -643,4 +626,4 @@
 
 	return SmoothScroll;
 
-}));
+})));
diff --git a/dist/smooth-scroll.min.js b/dist/smooth-scroll.min.js
old mode 100755
new mode 100644
index a830bae..b3d1fe0
--- a/dist/smooth-scroll.min.js
+++ b/dist/smooth-scroll.min.js
@@ -1,2 +1,2 @@
-/*! smooth-scroll v16.1.4 | (c) 2020 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
-!(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(C){"use strict";var w={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,speedAsDuration:!1,durationMax:null,durationMin:null,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},L=function(){var n={};return Array.prototype.forEach.call(arguments,(function(e){for(var t in e){if(!e.hasOwnProperty(t))return;n[t]=e[t]}})),n},r=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,a=-1,r="",i=n.charCodeAt(0);++a<o;){if(0===(t=n.charCodeAt(a)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");1<=t&&t<=31||127==t||0===a&&48<=t&&t<=57||1===a&&48<=t&&t<=57&&45===i?r+="\\"+t.toString(16)+" ":r+=128<=t||45===t||95===t||48<=t&&t<=57||65<=t&&t<=90||97<=t&&t<=122?n.charAt(a):"\\"+n.charAt(a)}return"#"+r},H=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},q=function(e){return e?(t=e,parseInt(C.getComputedStyle(t).height,10)+e.offsetTop):0;var t},x=function(e,t,n){0===e&&document.body.focus(),n||(e.focus(),document.activeElement!==e&&(e.setAttribute("tabindex","-1"),e.focus(),e.style.outline="none"),C.scrollTo(0,t))},Q=function(e,t,n,o){if(t.emitEvents&&"function"==typeof C.CustomEvent){var a=new CustomEvent(e,{bubbles:!0,detail:{anchor:n,toggle:o}});document.dispatchEvent(a)}};return function(o,e){var O,a,I,M,A={};A.cancelScroll=function(e){cancelAnimationFrame(M),M=null,e||Q("scrollCancel",O)},A.animateScroll=function(a,r,e){A.cancelScroll();var i=L(O||w,e||{}),s="[object Number]"===Object.prototype.toString.call(a),t=s||!a.tagName?null:a;if(s||t){var c=C.pageYOffset;i.header&&!I&&(I=document.querySelector(i.header));var n,o,u,l,d,f,m,h,p=q(I),g=s?a:(function(e,t,n,o){var a=0;if(e.offsetParent)for(;a+=e.offsetTop,e=e.offsetParent;);return a=Math.max(a-t-n,0),o&&(a=Math.min(a,H()-C.innerHeight)),a})(t,p,parseInt("function"==typeof i.offset?i.offset(a,r):i.offset,10),i.clip),y=g-c,v=H(),S=0,E=(n=y,u=(o=i).speedAsDuration?o.speed:Math.abs(n/1e3*o.speed),o.durationMax&&u>o.durationMax?o.durationMax:o.durationMin&&u<o.durationMin?o.durationMin:parseInt(u,10)),b=function(e){var t,n,o;l||(l=e),S+=e-l,f=c+y*(n=d=1<(d=0===E?0:S/E)?1:d,"easeInQuad"===(t=i).easing&&(o=n*n),"easeOutQuad"===t.easing&&(o=n*(2-n)),"easeInOutQuad"===t.easing&&(o=n<.5?2*n*n:(4-2*n)*n-1),"easeInCubic"===t.easing&&(o=n*n*n),"easeOutCubic"===t.easing&&(o=--n*n*n+1),"easeInOutCubic"===t.easing&&(o=n<.5?4*n*n*n:(n-1)*(2*n-2)*(2*n-2)+1),"easeInQuart"===t.easing&&(o=n*n*n*n),"easeOutQuart"===t.easing&&(o=1- --n*n*n*n),"easeInOutQuart"===t.easing&&(o=n<.5?8*n*n*n*n:1-8*--n*n*n*n),"easeInQuint"===t.easing&&(o=n*n*n*n*n),"easeOutQuint"===t.easing&&(o=1+--n*n*n*n*n),"easeInOutQuint"===t.easing&&(o=n<.5?16*n*n*n*n*n:1+16*--n*n*n*n*n),t.customEasing&&(o=t.customEasing(n)),o||n),C.scrollTo(0,Math.floor(f)),(function(e,t){var n=C.pageYOffset;if(e==t||n==t||(c<t&&C.innerHeight+n)>=v)return A.cancelScroll(!0),x(a,t,s),Q("scrollStop",i,a,r),!(M=l=null)})(f,g)||(M=C.requestAnimationFrame(b),l=e)};0===C.pageYOffset&&C.scrollTo(0,0),m=a,h=i,s||history.pushState&&h.updateURL&&history.pushState({smoothScroll:JSON.stringify(h),anchor:m.id},document.title,m===document.documentElement?"#top":"#"+m.id),"matchMedia"in C&&C.matchMedia("(prefers-reduced-motion)").matches?x(a,Math.floor(g),!1):(Q("scrollStart",i,a,r),A.cancelScroll(!0),C.requestAnimationFrame(b))}};var t=function(e){if(!e.defaultPrevented&&!(0!==e.button||e.metaKey||e.ctrlKey||e.shiftKey)&&"closest"in e.target&&(a=e.target.closest(o))&&"a"===a.tagName.toLowerCase()&&!e.target.closest(O.ignore)&&a.hostname===C.location.hostname&&a.pathname===C.location.pathname&&/#/.test(a.href)){var t,n;try{t=r(decodeURIComponent(a.hash))}catch(e){t=r(a.hash)}if("#"===t){if(!O.topOnEmptyHash)return;n=document.documentElement}else n=document.querySelector(t);(n=n||"#top"!==t?n:document.documentElement)&&(e.preventDefault(),(function(e){if(history.replaceState&&e.updateURL&&!history.state){var t=C.location.hash;t=t||"",history.replaceState({smoothScroll:JSON.stringify(e),anchor:t||C.pageYOffset},document.title,t||C.location.href)}})(O),A.animateScroll(n,a))}},n=function(){if(null!==history.state&&history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(O)){var e=history.state.anchor;"string"==typeof e&&e&&!(e=document.querySelector(r(history.state.anchor)))||A.animateScroll(e,null,{updateURL:!1})}};A.destroy=function(){O&&(document.removeEventListener("click",t,!1),C.removeEventListener("popstate",n,!1),A.cancelScroll(),M=I=a=O=null)};return (function(){if(!("querySelector"in document&&"addEventListener"in C&&"requestAnimationFrame"in C&&"closest"in C.Element.prototype))throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";A.destroy(),O=L(w,e||{}),I=O.header?document.querySelector(O.header):null,document.addEventListener("click",t,!1),O.updateURL&&O.popstate&&C.addEventListener("popstate",n,!1)})(),A}}));
\ No newline at end of file
+/*! SmoothScroll v16.1.4 | (c) 2020 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
+!function(e,t){"object"==typeof exports&&"undefined"!=typeof module?module.exports=t():"function"==typeof define&&define.amd?define(t):(e=e||self).SmoothScroll=t()}(this,(function(){"use strict";var e={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,speedAsDuration:!1,durationMax:null,durationMin:null,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},t=function(){var e={};return Array.prototype.forEach.call(arguments,(function(t){for(var n in t){if(!t.hasOwnProperty(n))return;e[n]=t[n]}})),e},n=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,a=-1,i="",r=n.charCodeAt(0);++a<o;){if(0===(t=n.charCodeAt(a)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");t>=1&&t<=31||127==t||0===a&&t>=48&&t<=57||1===a&&t>=48&&t<=57&&45===r?i+="\\"+t.toString(16)+" ":i+=t>=128||45===t||95===t||t>=48&&t<=57||t>=65&&t<=90||t>=97&&t<=122?n.charAt(a):"\\"+n.charAt(a)}return"#"+i},o=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},a=function(e){return e?(t=e,parseInt(window.getComputedStyle(t).height,10)+e.offsetTop):0;var t},i=function(e,t,n){0===e&&document.body.focus(),n||(e.focus(),document.activeElement!==e&&(e.setAttribute("tabindex","-1"),e.focus(),e.style.outline="none"),window.scrollTo(0,t))},r=function(e,t,n,o){if(t.emitEvents&&"function"==typeof window.CustomEvent){var a=new CustomEvent(e,{bubbles:!0,detail:{anchor:n,toggle:o}});document.dispatchEvent(a)}};return function(s,c){var u,l,d,f,m={};m.cancelScroll=function(e){cancelAnimationFrame(f),f=null,e||r("scrollCancel",u)},m.animateScroll=function(n,s,c){m.cancelScroll();var l=t(u||e,c||{}),h="[object 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n;return"easeInQuad"===e.easing&&(n=t*t),"easeOutQuad"===e.easing&&(n=t*(2-t)),"easeInOutQuad"===e.easing&&(n=t<.5?2*t*t:(4-2*t)*t-1),"easeInCubic"===e.easing&&(n=t*t*t),"easeOutCubic"===e.easing&&(n=--t*t*t+1),"easeInOutCubic"===e.easing&&(n=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1),"easeInQuart"===e.easing&&(n=t*t*t*t),"easeOutQuart"===e.easing&&(n=1- --t*t*t*t),"easeInOutQuart"===e.easing&&(n=t<.5?8*t*t*t*t:1-8*--t*t*t*t),"easeInQuint"===e.easing&&(n=t*t*t*t*t),"easeOutQuint"===e.easing&&(n=1+--t*t*t*t*t),"easeInOutQuint"===e.easing&&(n=t<.5?16*t*t*t*t*t:1+16*--t*t*t*t*t),e.customEasing&&(n=e.customEasing(t)),n||t}(l,y=(y=0===M?0:I/M)>1?1:y),window.scrollTo(0,Math.floor(v)),function(e,t){var o=window.pageYOffset;if(e==t||o==t||(w<t&&window.innerHeight+o)>=O)return m.cancelScroll(!0),i(n,t,h),r("scrollStop",l,n,s),g=null,f=null,!0}(v,E)||(f=window.requestAnimationFrame(A),g=e)};0===window.pageYOffset&&window.scrollTo(0,0),function(e,t,n){t||history.pushState&&n.updateURL&&history.pushState({smoothScroll:JSON.stringify(n),anchor:e.id},document.title,e===document.documentElement?"#top":"#"+e.id)}(n,h,l),"matchMedia"in window&&window.matchMedia("(prefers-reduced-motion)").matches?i(n,Math.floor(E),!1):(r("scrollStart",l,n,s),m.cancelScroll(!0),window.requestAnimationFrame(A))}};var h=function(e){if(!e.defaultPrevented&&!(0!==e.button||e.metaKey||e.ctrlKey||e.shiftKey)&&"closest"in e.target&&(l=e.target.closest(s))&&"a"===l.tagName.toLowerCase()&&!e.target.closest(u.ignore)&&l.hostname===window.location.hostname&&l.pathname===window.location.pathname&&/#/.test(l.href)){var t,o;try{t=n(decodeURIComponent(l.hash))}catch(e){t=n(l.hash)}if("#"===t){if(!u.topOnEmptyHash)return;o=document.documentElement}else o=document.querySelector(t);(o=o||"#top"!==t?o:document.documentElement)&&(e.preventDefault(),function(e){if(history.replaceState&&e.updateURL&&!history.state){var t=window.location.hash;t=t||"",history.replaceState({smoothScroll:JSON.stringify(e),anchor:t||window.pageYOffset},document.title,t||window.location.href)}}(u),m.animateScroll(o,l))}},p=function(){if(null!==history.state&&history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(u)){var e=history.state.anchor;"string"==typeof e&&e&&!(e=document.querySelector(n(history.state.anchor)))||m.animateScroll(e,null,{updateURL:!1})}};m.destroy=function(){u&&(document.removeEventListener("click",h,!1),window.removeEventListener("popstate",p,!1),m.cancelScroll(),u=null,l=null,d=null,f=null)};return function(){if(!("querySelector"in document&&"addEventListener"in window&&"requestAnimationFrame"in window&&"closest"in window.Element.prototype))throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";m.destroy(),u=t(e,c||{}),d=u.header?document.querySelector(u.header):null,document.addEventListener("click",h,!1),u.updateURL&&u.popstate&&window.addEventListener("popstate",p,!1)}(),m}}));
diff --git a/dist/smooth-scroll.polyfills.js b/dist/smooth-scroll.polyfills.js
old mode 100755
new mode 100644
index 56600a5..3c98174
--- a/dist/smooth-scroll.polyfills.js
+++ b/dist/smooth-scroll.polyfills.js
@@ -1,94 +1,80 @@
-/*!
- * smooth-scroll v16.1.4
- * Animate scrolling to anchor links
- * (c) 2020 Chris Ferdinandi
- * MIT License
- * http://github.com/cferdinandi/smooth-scroll
- */
-
-/**
- * closest() polyfill
- * @link https://developer.mozilla.org/en-US/docs/Web/API/Element/closest#Polyfill
- */
-if (window.Element && !Element.prototype.closest) {
-	Element.prototype.closest = function(s) {
-		var matches = (this.document || this.ownerDocument).querySelectorAll(s),
-			i,
-			el = this;
-		do {
-			i = matches.length;
-			while (--i >= 0 && matches.item(i) !== el) {}
-		} while ((i < 0) && (el = el.parentElement));
-		return el;
-	};
-}
+/*! SmoothScroll v16.1.4 | (c) 2020 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
+(function (global, factory) {
+	typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
+	typeof define === 'function' && define.amd ? define(factory) :
+	(global = global || self, global.SmoothScroll = factory());
+}(this, (function () { 'use strict';
 
-/**
- * CustomEvent() polyfill
- * https://developer.mozilla.org/en-US/docs/Web/API/CustomEvent/CustomEvent#Polyfill
- */
-(function () {
+	/**
+	 * closest() polyfill
+	 * @link https://developer.mozilla.org/en-US/docs/Web/API/Element/closest#Polyfill
+	 */
+	if (window.Element && !Element.prototype.closest) {
+		Element.prototype.closest = function(s) {
+			var matches = (this.document || this.ownerDocument).querySelectorAll(s),
+				i,
+				el = this;
+			do {
+				i = matches.length;
+				while (--i >= 0 && matches.item(i) !== el) {}
+			} while ((i < 0) && (el = el.parentElement));
+			return el;
+		};
+	}
 
-	if (typeof window.CustomEvent === "function") return false;
+	/**
+	 * CustomEvent() polyfill
+	 * https://developer.mozilla.org/en-US/docs/Web/API/CustomEvent/CustomEvent#Polyfill
+	 */
+	(function () {
 
-	function CustomEvent(event, params) {
-		params = params || { bubbles: false, cancelable: false, detail: undefined };
-		var evt = document.createEvent('CustomEvent');
-		evt.initCustomEvent(event, params.bubbles, params.cancelable, params.detail);
-		return evt;
-	}
+		if (typeof window.CustomEvent === "function") return false;
 
-	CustomEvent.prototype = window.Event.prototype;
-
-	window.CustomEvent = CustomEvent;
-})();
-/**
- * requestAnimationFrame() polyfill
- * By Erik Möller. Fixes from Paul Irish and Tino Zijdel.
- * @link http://paulirish.com/2011/requestanimationframe-for-smart-animating/
- * @link http://my.opera.com/emoller/blog/2011/12/20/requestanimationframe-for-smart-er-animating
- * @license MIT
- */
-(function() {
-	var lastTime = 0;
-	var vendors = ['ms', 'moz', 'webkit', 'o'];
-	for(var x = 0; x < vendors.length && !window.requestAnimationFrame; ++x) {
-		window.requestAnimationFrame = window[vendors[x]+'RequestAnimationFrame'];
-		window.cancelAnimationFrame = window[vendors[x]+'CancelAnimationFrame'] ||
-		                              window[vendors[x]+'CancelRequestAnimationFrame'];
-	}
+		function CustomEvent(event, params) {
+			params = params || { bubbles: false, cancelable: false, detail: undefined };
+			var evt = document.createEvent('CustomEvent');
+			evt.initCustomEvent(event, params.bubbles, params.cancelable, params.detail);
+			return evt;
+		}
 
-	if (!window.requestAnimationFrame) {
-		window.requestAnimationFrame = function(callback, element) {
-			var currTime = new Date().getTime();
-			var timeToCall = Math.max(0, 16 - (currTime - lastTime));
-			var id = window.setTimeout((function() { callback(currTime + timeToCall); }),
-				timeToCall);
-			lastTime = currTime + timeToCall;
-			return id;
-		};
-	}
+		CustomEvent.prototype = window.Event.prototype;
 
-	if (!window.cancelAnimationFrame) {
-		window.cancelAnimationFrame = function(id) {
-			clearTimeout(id);
-		};
-	}
-}());
-
-(function (root, factory) {
-	if (typeof define === 'function' && define.amd) {
-		define([], (function () {
-			return factory(root);
-		}));
-	} else if (typeof exports === 'object') {
-		module.exports = factory(root);
-	} else {
-		root.SmoothScroll = factory(root);
-	}
-})(typeof global !== 'undefined' ? global : typeof window !== 'undefined' ? window : this, (function (window) {
+		window.CustomEvent = CustomEvent;
+	})();
 
-	'use strict';
+	/**
+	 * requestAnimationFrame() polyfill
+	 * By Erik Möller. Fixes from Paul Irish and Tino Zijdel.
+	 * @link http://paulirish.com/2011/requestanimationframe-for-smart-animating/
+	 * @link http://my.opera.com/emoller/blog/2011/12/20/requestanimationframe-for-smart-er-animating
+	 * @license MIT
+	 */
+	(function() {
+		var lastTime = 0;
+		var vendors = ['ms', 'moz', 'webkit', 'o'];
+		for(var x = 0; x < vendors.length && !window.requestAnimationFrame; ++x) {
+			window.requestAnimationFrame = window[vendors[x]+'RequestAnimationFrame'];
+			window.cancelAnimationFrame = window[vendors[x]+'CancelAnimationFrame'] ||
+			                              window[vendors[x]+'CancelRequestAnimationFrame'];
+		}
+
+		if (!window.requestAnimationFrame) {
+			window.requestAnimationFrame = function(callback, element) {
+				var currTime = new Date().getTime();
+				var timeToCall = Math.max(0, 16 - (currTime - lastTime));
+				var id = window.setTimeout(function() { callback(currTime + timeToCall); },
+					timeToCall);
+				lastTime = currTime + timeToCall;
+				return id;
+			};
+		}
+
+		if (!window.cancelAnimationFrame) {
+			window.cancelAnimationFrame = function(id) {
+				clearTimeout(id);
+			};
+		}
+	}());
 
 	//
 	// Default settings
@@ -147,12 +133,12 @@ if (window.Element && !Element.prototype.closest) {
 	 */
 	var extend = function () {
 		var merged = {};
-		Array.prototype.forEach.call(arguments, (function (obj) {
+		Array.prototype.forEach.call(arguments, function (obj) {
 			for (var key in obj) {
 				if (!obj.hasOwnProperty(key)) return;
 				merged[key] = obj[key];
 			}
-		}));
+		});
 		return merged;
 	};
 
@@ -319,7 +305,7 @@ if (window.Element && !Element.prototype.closest) {
 		if (clip) {
 			location = Math.min(location, getDocumentHeight() - window.innerHeight);
 		}
- 		return location;
+			return location;
 	};
 
 	/**
@@ -449,7 +435,7 @@ if (window.Element && !Element.prototype.closest) {
 		//
 
 		var smoothScroll = {}; // Object for public APIs
-		var settings, anchor, toggle, fixedHeader, eventTimeout, animationInterval;
+		var settings, toggle, fixedHeader, animationInterval;
 
 
 		//
@@ -661,10 +647,8 @@ if (window.Element && !Element.prototype.closest) {
 
 			// Reset variables
 			settings = null;
-			anchor = null;
 			toggle = null;
 			fixedHeader = null;
-			eventTimeout = null;
 			animationInterval = null;
 
 		};
@@ -713,4 +697,4 @@ if (window.Element && !Element.prototype.closest) {
 
 	return SmoothScroll;
 
-}));
+})));
diff --git a/dist/smooth-scroll.polyfills.min.js b/dist/smooth-scroll.polyfills.min.js
old mode 100755
new mode 100644
index 2174e57..575a67b
--- a/dist/smooth-scroll.polyfills.min.js
+++ b/dist/smooth-scroll.polyfills.min.js
@@ -1,2 +1,10 @@
-/*! smooth-scroll v16.1.4 | (c) 2020 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
-window.Element&&!Element.prototype.closest&&(Element.prototype.closest=function(e){var t,n=(this.document||this.ownerDocument).querySelectorAll(e),o=this;do{for(t=n.length;0<=--t&&n.item(t)!==o;);}while(t<0&&(o=o.parentElement));return o}),(function(){if("function"==typeof window.CustomEvent)return;function e(e,t){t=t||{bubbles:!1,cancelable:!1,detail:void 0};var n=document.createEvent("CustomEvent");return n.initCustomEvent(e,t.bubbles,t.cancelable,t.detail),n}e.prototype=window.Event.prototype,window.CustomEvent=e})(),(function(){for(var r=0,e=["ms","moz","webkit","o"],t=0;t<e.length&&!window.requestAnimationFrame;++t)window.requestAnimationFrame=window[e[t]+"RequestAnimationFrame"],window.cancelAnimationFrame=window[e[t]+"CancelAnimationFrame"]||window[e[t]+"CancelRequestAnimationFrame"];window.requestAnimationFrame||(window.requestAnimationFrame=function(e,t){var n=(new Date).getTime(),o=Math.max(0,16-(n-r)),a=window.setTimeout((function(){e(n+o)}),o);return r=n+o,a}),window.cancelAnimationFrame||(window.cancelAnimationFrame=function(e){clearTimeout(e)})})(),(function(e,t){"function"==typeof define&&define.amd?define([],(function(){return t(e)})):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)})("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,(function(M){"use strict";var q={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,speedAsDuration:!1,durationMax:null,durationMin:null,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},I=function(){var n={};return Array.prototype.forEach.call(arguments,(function(e){for(var t in e){if(!e.hasOwnProperty(t))return;n[t]=e[t]}})),n},r=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n=String(e),o=n.length,a=-1,r="",i=n.charCodeAt(0);++a<o;){if(0===(t=n.charCodeAt(a)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");1<=t&&t<=31||127==t||0===a&&48<=t&&t<=57||1===a&&48<=t&&t<=57&&45===i?r+="\\"+t.toString(16)+" ":r+=128<=t||45===t||95===t||48<=t&&t<=57||65<=t&&t<=90||97<=t&&t<=122?n.charAt(a):"\\"+n.charAt(a)}return"#"+r},F=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},L=function(e){return e?(t=e,parseInt(M.getComputedStyle(t).height,10)+e.offsetTop):0;var t},x=function(e,t,n){0===e&&document.body.focus(),n||(e.focus(),document.activeElement!==e&&(e.setAttribute("tabindex","-1"),e.focus(),e.style.outline="none"),M.scrollTo(0,t))},H=function(e,t,n,o){if(t.emitEvents&&"function"==typeof M.CustomEvent){var a=new CustomEvent(e,{bubbles:!0,detail:{anchor:n,toggle:o}});document.dispatchEvent(a)}};return function(o,e){var b,a,A,O,C={};C.cancelScroll=function(e){cancelAnimationFrame(O),O=null,e||H("scrollCancel",b)},C.animateScroll=function(a,r,e){C.cancelScroll();var i=I(b||q,e||{}),c="[object Number]"===Object.prototype.toString.call(a),t=c||!a.tagName?null:a;if(c||t){var s=M.pageYOffset;i.header&&!A&&(A=document.querySelector(i.header));var n,o,u,l,m,d,f,h,p=L(A),g=c?a:(function(e,t,n,o){var a=0;if(e.offsetParent)for(;a+=e.offsetTop,e=e.offsetParent;);return a=Math.max(a-t-n,0),o&&(a=Math.min(a,F()-M.innerHeight)),a})(t,p,parseInt("function"==typeof i.offset?i.offset(a,r):i.offset,10),i.clip),y=g-s,v=F(),w=0,S=(n=y,u=(o=i).speedAsDuration?o.speed:Math.abs(n/1e3*o.speed),o.durationMax&&u>o.durationMax?o.durationMax:o.durationMin&&u<o.durationMin?o.durationMin:parseInt(u,10)),E=function(e){var t,n,o;l||(l=e),w+=e-l,d=s+y*(n=m=1<(m=0===S?0:w/S)?1:m,"easeInQuad"===(t=i).easing&&(o=n*n),"easeOutQuad"===t.easing&&(o=n*(2-n)),"easeInOutQuad"===t.easing&&(o=n<.5?2*n*n:(4-2*n)*n-1),"easeInCubic"===t.easing&&(o=n*n*n),"easeOutCubic"===t.easing&&(o=--n*n*n+1),"easeInOutCubic"===t.easing&&(o=n<.5?4*n*n*n:(n-1)*(2*n-2)*(2*n-2)+1),"easeInQuart"===t.easing&&(o=n*n*n*n),"easeOutQuart"===t.easing&&(o=1- --n*n*n*n),"easeInOutQuart"===t.easing&&(o=n<.5?8*n*n*n*n:1-8*--n*n*n*n),"easeInQuint"===t.easing&&(o=n*n*n*n*n),"easeOutQuint"===t.easing&&(o=1+--n*n*n*n*n),"easeInOutQuint"===t.easing&&(o=n<.5?16*n*n*n*n*n:1+16*--n*n*n*n*n),t.customEasing&&(o=t.customEasing(n)),o||n),M.scrollTo(0,Math.floor(d)),(function(e,t){var n=M.pageYOffset;if(e==t||n==t||(s<t&&M.innerHeight+n)>=v)return C.cancelScroll(!0),x(a,t,c),H("scrollStop",i,a,r),!(O=l=null)})(d,g)||(O=M.requestAnimationFrame(E),l=e)};0===M.pageYOffset&&M.scrollTo(0,0),f=a,h=i,c||history.pushState&&h.updateURL&&history.pushState({smoothScroll:JSON.stringify(h),anchor:f.id},document.title,f===document.documentElement?"#top":"#"+f.id),"matchMedia"in M&&M.matchMedia("(prefers-reduced-motion)").matches?x(a,Math.floor(g),!1):(H("scrollStart",i,a,r),C.cancelScroll(!0),M.requestAnimationFrame(E))}};var t=function(e){if(!e.defaultPrevented&&!(0!==e.button||e.metaKey||e.ctrlKey||e.shiftKey)&&"closest"in e.target&&(a=e.target.closest(o))&&"a"===a.tagName.toLowerCase()&&!e.target.closest(b.ignore)&&a.hostname===M.location.hostname&&a.pathname===M.location.pathname&&/#/.test(a.href)){var t,n;try{t=r(decodeURIComponent(a.hash))}catch(e){t=r(a.hash)}if("#"===t){if(!b.topOnEmptyHash)return;n=document.documentElement}else n=document.querySelector(t);(n=n||"#top"!==t?n:document.documentElement)&&(e.preventDefault(),(function(e){if(history.replaceState&&e.updateURL&&!history.state){var t=M.location.hash;t=t||"",history.replaceState({smoothScroll:JSON.stringify(e),anchor:t||M.pageYOffset},document.title,t||M.location.href)}})(b),C.animateScroll(n,a))}},n=function(){if(null!==history.state&&history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(b)){var e=history.state.anchor;"string"==typeof e&&e&&!(e=document.querySelector(r(history.state.anchor)))||C.animateScroll(e,null,{updateURL:!1})}};C.destroy=function(){b&&(document.removeEventListener("click",t,!1),M.removeEventListener("popstate",n,!1),C.cancelScroll(),O=A=a=b=null)};return (function(){if(!("querySelector"in document&&"addEventListener"in M&&"requestAnimationFrame"in M&&"closest"in M.Element.prototype))throw"Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.";C.destroy(),b=I(q,e||{}),A=b.header?document.querySelector(b.header):null,document.addEventListener("click",t,!1),b.updateURL&&b.popstate&&M.addEventListener("popstate",n,!1)})(),C}}));
\ No newline at end of file
+/*! SmoothScroll v16.1.4 | (c) 2020 Chris Ferdinandi | MIT License | http://github.com/cferdinandi/smooth-scroll */
+!function(e,t){"object"==typeof exports&&"undefined"!=typeof module?module.exports=t():"function"==typeof define&&define.amd?define(t):(e=e||self).SmoothScroll=t()}(this,(function(){"use strict";window.Element&&!Element.prototype.closest&&(Element.prototype.closest=function(e){var t,n=(this.document||this.ownerDocument).querySelectorAll(e),o=this;do{for(t=n.length;--t>=0&&n.item(t)!==o;);}while(t<0&&(o=o.parentElement));return o}),function(){if("function"==typeof window.CustomEvent)return!1;function e(e,t){t=t||{bubbles:!1,cancelable:!1,detail:void 0};var n=document.createEvent("CustomEvent");return n.initCustomEvent(e,t.bubbles,t.cancelable,t.detail),n}e.prototype=window.Event.prototype,window.CustomEvent=e}(),
+/**
+	 * requestAnimationFrame() polyfill
+	 * By Erik Möller. Fixes from Paul Irish and Tino Zijdel.
+	 * @link http://paulirish.com/2011/requestanimationframe-for-smart-animating/
+	 * @link http://my.opera.com/emoller/blog/2011/12/20/requestanimationframe-for-smart-er-animating
+	 * @license MIT
+	 */
+function(){for(var e=0,t=["ms","moz","webkit","o"],n=0;n<t.length&&!window.requestAnimationFrame;++n)window.requestAnimationFrame=window[t[n]+"RequestAnimationFrame"],window.cancelAnimationFrame=window[t[n]+"CancelAnimationFrame"]||window[t[n]+"CancelRequestAnimationFrame"];window.requestAnimationFrame||(window.requestAnimationFrame=function(t,n){var o=(new Date).getTime(),i=Math.max(0,16-(o-e)),a=window.setTimeout((function(){t(o+i)}),i);return e=o+i,a}),window.cancelAnimationFrame||(window.cancelAnimationFrame=function(e){clearTimeout(e)})}();var e={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,speedAsDuration:!1,durationMax:null,durationMin:null,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},t=function(){var e={};return Array.prototype.forEach.call(arguments,(function(t){for(var n in t){if(!t.hasOwnProperty(n))return;e[n]=t[n]}})),e},n=function(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var 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+            "integrity": "sha1-awRGhWqbERTRhW/8vlCczLCXcmU=",
+            "dev": true,
+            "requires": {
+                "temp-dir": "^1.0.0",
+                "uuid": "^3.0.1"
+            }
+        },
+        "terser": {
+            "version": "4.6.12",
+            "resolved": "https://registry.npmjs.org/terser/-/terser-4.6.12.tgz",
+            "integrity": "sha512-fnIwuaKjFPANG6MAixC/k1TDtnl1YlPLUlLVIxxGZUn1gfUx2+l3/zGNB72wya+lgsb50QBi2tUV75RiODwnww==",
+            "dev": true,
+            "requires": {
+                "commander": "^2.20.0",
+                "source-map": "~0.6.1",
+                "source-map-support": "~0.5.12"
+            },
+            "dependencies": {
+                "commander": {
+                    "version": "2.20.3",
+                    "resolved": "https://registry.npmjs.org/commander/-/commander-2.20.3.tgz",
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+                    "dev": true
+                }
+            }
+        },
+        "through": {
+            "version": "2.3.8",
+            "resolved": "https://registry.npmjs.org/through/-/through-2.3.8.tgz",
+            "integrity": "sha1-DdTJ/6q8NXlgsbckEV1+Doai4fU=",
+            "dev": true
+        },
+        "timed-out": {
+            "version": "4.0.1",
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+            "integrity": "sha1-8y6srFoXW+ol1/q1Zas+2HQe9W8=",
+            "dev": true
+        },
+        "to-buffer": {
+            "version": "1.1.1",
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+            "dev": true
+        },
+        "to-regex-range": {
+            "version": "5.0.1",
+            "resolved": "https://registry.npmjs.org/to-regex-range/-/to-regex-range-5.0.1.tgz",
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+            "dev": true,
+            "requires": {
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+            }
+        },
+        "trim-newlines": {
+            "version": "1.0.0",
+            "resolved": "https://registry.npmjs.org/trim-newlines/-/trim-newlines-1.0.0.tgz",
+            "integrity": "sha1-WIeWa7WCpFA6QetST301ARgVphM=",
+            "dev": true
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+        "trim-repeated": {
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+            "integrity": "sha1-42RqLqTokTEr9+rObPsFOAvAHCE=",
+            "dev": true,
+            "requires": {
+                "escape-string-regexp": "^1.0.2"
+            }
+        },
+        "tunnel-agent": {
+            "version": "0.6.0",
+            "resolved": "https://registry.npmjs.org/tunnel-agent/-/tunnel-agent-0.6.0.tgz",
+            "integrity": "sha1-J6XeoGs2sEoKmWZ3SykIaPD8QP0=",
+            "dev": true,
+            "requires": {
+                "safe-buffer": "^5.0.1"
+            }
+        },
+        "type-fest": {
+            "version": "0.5.2",
+            "resolved": "https://registry.npmjs.org/type-fest/-/type-fest-0.5.2.tgz",
+            "integrity": "sha512-DWkS49EQKVX//Tbupb9TFa19c7+MK1XmzkrZUR8TAktmE/DizXoaoJV6TZ/tSIPXipqNiRI6CyAe7x69Jb6RSw==",
+            "dev": true
+        },
+        "unbzip2-stream": {
+            "version": "1.4.2",
+            "resolved": "https://registry.npmjs.org/unbzip2-stream/-/unbzip2-stream-1.4.2.tgz",
+            "integrity": "sha512-pZMVAofMrrHX6Ik39hCk470kulCbmZ2SWfQLPmTWqfJV/oUm0gn1CblvHdUu4+54Je6Jq34x8kY6XjTy6dMkOg==",
+            "dev": true,
+            "requires": {
+                "buffer": "^5.2.1",
+                "through": "^2.3.8"
+            }
+        },
+        "unquote": {
+            "version": "1.1.1",
+            "resolved": "https://registry.npmjs.org/unquote/-/unquote-1.1.1.tgz",
+            "integrity": "sha1-j97XMk7G6IoP+LkF58CYzcCG1UQ=",
+            "dev": true
+        },
+        "url-parse-lax": {
+            "version": "1.0.0",
+            "resolved": "https://registry.npmjs.org/url-parse-lax/-/url-parse-lax-1.0.0.tgz",
+            "integrity": "sha1-evjzA2Rem9eaJy56FKxovAYJ2nM=",
+            "dev": true,
+            "requires": {
+                "prepend-http": "^1.0.1"
+            }
+        },
+        "url-to-options": {
+            "version": "1.0.1",
+            "resolved": "https://registry.npmjs.org/url-to-options/-/url-to-options-1.0.1.tgz",
+            "integrity": "sha1-FQWgOiiaSMvXpDTvuu7FBV9WM6k=",
+            "dev": true
+        },
+        "util-deprecate": {
+            "version": "1.0.2",
+            "resolved": "https://registry.npmjs.org/util-deprecate/-/util-deprecate-1.0.2.tgz",
+            "integrity": "sha1-RQ1Nyfpw3nMnYvvS1KKJgUGaDM8=",
+            "dev": true
+        },
+        "util.promisify": {
+            "version": "1.0.1",
+            "resolved": "https://registry.npmjs.org/util.promisify/-/util.promisify-1.0.1.tgz",
+            "integrity": "sha512-g9JpC/3He3bm38zsLupWryXHoEcS22YHthuPQSJdMy6KNrzIRzWqcsHzD/WUnqe45whVou4VIsPew37DoXWNrA==",
+            "dev": true,
+            "requires": {
+                "define-properties": "^1.1.3",
+                "es-abstract": "^1.17.2",
+                "has-symbols": "^1.0.1",
+                "object.getownpropertydescriptors": "^2.1.0"
+            }
+        },
+        "uuid": {
+            "version": "3.4.0",
+            "resolved": "https://registry.npmjs.org/uuid/-/uuid-3.4.0.tgz",
+            "integrity": "sha512-HjSDRw6gZE5JMggctHBcjVak08+KEVhSIiDzFnT9S9aegmp85S/bReBVTb4QTFaRNptJ9kuYaNhnbNEOkbKb/A==",
+            "dev": true
+        },
+        "validate-npm-package-license": {
+            "version": "3.0.4",
+            "resolved": "https://registry.npmjs.org/validate-npm-package-license/-/validate-npm-package-license-3.0.4.tgz",
+            "integrity": "sha512-DpKm2Ui/xN7/HQKCtpZxoRWBhZ9Z0kqtygG8XCgNQ8ZlDnxuQmWhj566j8fN4Cu3/JmbhsDo7fcAJq4s9h27Ew==",
+            "dev": true,
+            "requires": {
+                "spdx-correct": "^3.0.0",
+                "spdx-expression-parse": "^3.0.0"
+            }
+        },
+        "wcwidth": {
+            "version": "1.0.1",
+            "resolved": "https://registry.npmjs.org/wcwidth/-/wcwidth-1.0.1.tgz",
+            "integrity": "sha1-8LDc+RW8X/FSivrbLA4XtTLaL+g=",
+            "dev": true,
+            "requires": {
+                "defaults": "^1.0.3"
+            }
+        },
+        "which": {
+            "version": "1.3.1",
+            "resolved": "https://registry.npmjs.org/which/-/which-1.3.1.tgz",
+            "integrity": "sha512-HxJdYWq1MTIQbJ3nw0cqssHoTNU267KlrDuGZ1WYlxDStUtKUhOaJmh112/TZmHxxUfuJqPXSOm7tDyas0OSIQ==",
+            "dev": true,
+            "requires": {
+                "isexe": "^2.0.0"
+            }
+        },
+        "wrappy": {
+            "version": "1.0.2",
+            "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
+            "integrity": "sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8=",
+            "dev": true
+        },
+        "xtend": {
+            "version": "4.0.2",
+            "resolved": "https://registry.npmjs.org/xtend/-/xtend-4.0.2.tgz",
+            "integrity": "sha512-LKYU1iAXJXUgAXn9URjiu+MWhyUXHsvfp7mcuYm9dSUKK0/CjtrUwFAxD82/mCWbtLsGjFIad0wIsod4zrTAEQ==",
+            "dev": true
+        },
+        "yallist": {
+            "version": "2.1.2",
+            "resolved": "https://registry.npmjs.org/yallist/-/yallist-2.1.2.tgz",
+            "integrity": "sha1-HBH5IY8HYImkfdUS+TxmmaaoHVI=",
+            "dev": true
+        },
+        "yargs-parser": {
+            "version": "10.1.0",
+            "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-10.1.0.tgz",
+            "integrity": "sha512-VCIyR1wJoEBZUqk5PA+oOBF6ypbwh5aNB3I50guxAL/quggdfs4TtNHQrSazFA3fYZ+tEqfs0zIGlv0c/rgjbQ==",
+            "dev": true,
+            "requires": {
+                "camelcase": "^4.1.0"
+            },
+            "dependencies": {
+                "camelcase": {
+                    "version": "4.1.0",
+                    "resolved": "https://registry.npmjs.org/camelcase/-/camelcase-4.1.0.tgz",
+                    "integrity": "sha1-1UVjW+HjPFQmScaRc+Xeas+uNN0=",
+                    "dev": true
+                }
+            }
+        },
+        "yauzl": {
+            "version": "2.10.0",
+            "resolved": "https://registry.npmjs.org/yauzl/-/yauzl-2.10.0.tgz",
+            "integrity": "sha1-x+sXyT4RLLEIb6bY5R+wZnt5pfk=",
+            "dev": true,
+            "requires": {
+                "buffer-crc32": "~0.2.3",
+                "fd-slicer": "~1.1.0"
+            }
+        },
+        "zopflipng-bin": {
+            "version": "5.0.0",
+            "resolved": "https://registry.npmjs.org/zopflipng-bin/-/zopflipng-bin-5.0.0.tgz",
+            "integrity": "sha512-8AWRT/CPkIBEup96LSiVdhLT4n7b4bpzY0BcQ26OjdRnjODa+JWNK55Ii63CiOEyqObPSwjLifuUI5ooFmjiGQ==",
+            "dev": true,
+            "requires": {
+                "bin-build": "^3.0.0",
+                "bin-wrapper": "^4.0.1",
+                "logalot": "^2.1.0"
+            }
+        }
+    }
 }
diff --git a/package.json b/package.json
index a306cf1..25f47ba 100755
--- a/package.json
+++ b/package.json
@@ -1,34 +1,30 @@
 {
-	"name": "smooth-scroll",
-	"version": "16.1.4",
-	"description": "Animate scrolling to anchor links",
-	"main": "./dist/smooth-scroll.polyfills.min.js",
-	"author": {
-		"name": "Chris Ferdinandi",
-		"url": "http://gomakethings.com/"
-	},
-	"license": "MIT",
-	"repository": {
-		"type": "git",
-		"url": "http://github.com/cferdinandi/smooth-scroll"
-	},
-	"devDependencies": {
-		"gulp": "4.0.0",
-		"del": "3.0.0",
-		"lazypipe": "1.0.1",
-		"gulp-flatmap": "1.0.2",
-		"gulp-header": "2.0.5",
-		"gulp-rename": "1.4.0",
-		"jshint": "2.9.6",
-		"gulp-jshint": "2.1.0",
-		"jshint-stylish": "2.2.1",
-		"gulp-concat": "2.6.1",
-		"gulp-uglify": "3.0.1",
-		"gulp-optimize-js": "1.1.0",
-		"gulp-sass": "4.0.2",
-		"gulp-cssnano": "2.1.3",
-		"gulp-autoprefixer": "6.0.0",
-		"gulp-svgmin": "2.1.0",
-		"browser-sync": "2.26.3"
-	}
+    "name": "smooth-scroll",
+    "version": "16.1.4",
+    "description": "Animate scrolling to anchor links",
+    "main": "./dist/smooth-scroll.polyfills.min.js",
+    "author": {
+        "name": "Chris Ferdinandi",
+        "url": "http://gomakethings.com/"
+    },
+    "license": "MIT",
+    "repository": {
+        "type": "git",
+        "url": "http://github.com/cferdinandi/smooth-scroll"
+    },
+    "scripts": {
+        "js": "rollup --config",
+        "build": "npm run js"
+    },
+    "devDependencies": {
+        "rollup": "^2.6.1",
+        "rollup-plugin-terser": "^5.3.0",
+        "sass": "^1.26.5",
+        "imagemin-cli": "^5.1.0",
+        "imagemin-mozjpeg": "^8.0.0",
+        "imagemin-pngcrush": "^6.0.0",
+        "imagemin-pngquant": "^8.0.0",
+        "imagemin-zopfli": "^6.0.0",
+        "svgo": "^1.3.2"
+    }
 }
diff --git a/rollup.config.js b/rollup.config.js
new file mode 100644
index 0000000..086774b
--- /dev/null
+++ b/rollup.config.js
@@ -0,0 +1,72 @@
+// Plugins
+import { terser } from 'rollup-plugin-terser';
+import pkg from './package.json';
+
+
+// Configs
+var configs = {
+	name: 'SmoothScroll',
+	files: ['smooth-scroll.js', 'smooth-scroll.polyfills.js'],
+	formats: ['umd'],
+	default: 'umd',
+	pathIn: 'src/',
+	pathOut: 'dist/',
+	minify: true
+};
+
+// Banner
+var banner = `/*! ${configs.name ? configs.name : pkg.name} v${pkg.version} | (c) ${new Date().getFullYear()} ${pkg.author.name} | ${pkg.license} License | ${pkg.repository.url} */`;
+
+var createOutput = function (filename, minify) {
+	return configs.formats.map(function (format) {
+		var output = {
+			file: `${configs.pathOut}/${filename}${format === configs.default ? '' : `.${format}`}${minify ? '.min' : ''}.js`,
+			format: format,
+			banner: banner
+		};
+		if (format === 'iife' || format === 'umd') {
+			output.name = configs.name ? configs.name : pkg.name;
+		}
+		if (minify) {
+			output.plugins = [terser()];
+		}
+		return output;
+	});
+};
+
+/**
+ * Create output formats
+ * @param  {String} filename The filename
+ * @return {Array}           The outputs array
+ */
+var createOutputs = function (filename) {
+
+	// Create base outputs
+	var outputs = createOutput(filename);
+
+	// If not minifying, return outputs
+	if (!configs.minify) return outputs;
+
+	// Otherwise, ceate second set of outputs
+	var outputsMin = createOutput(filename, true);
+
+	// Merge and return the two arrays
+	return outputs.concat(outputsMin);
+
+};
+
+/**
+ * Create export object
+ * @return {Array} The export object
+ */
+var createExport = function (file) {
+	return configs.files.map(function (file) {
+		var filename = file.replace('.js', '');
+		return {
+			input: `${configs.pathIn}/${file}`,
+			output: createOutputs(filename)
+		};
+	});
+};
+
+export default createExport();
\ No newline at end of file
diff --git a/src/js/smooth-scroll/_closest.polyfill.js b/src/_closest.polyfill.js
similarity index 100%
rename from src/js/smooth-scroll/_closest.polyfill.js
rename to src/_closest.polyfill.js
diff --git a/src/js/smooth-scroll/_customEvent.polyfill.js b/src/_customEvent.polyfill.js
similarity index 100%
rename from src/js/smooth-scroll/_customEvent.polyfill.js
rename to src/_customEvent.polyfill.js
diff --git a/src/js/smooth-scroll/_requestAnimationFrame.polyfill.js b/src/_requestAnimationFrame.polyfill.js
similarity index 100%
rename from src/js/smooth-scroll/_requestAnimationFrame.polyfill.js
rename to src/_requestAnimationFrame.polyfill.js
diff --git a/src/copy/index.html b/src/copy/index.html
deleted file mode 100755
index a10fdc9..0000000
--- a/src/copy/index.html
+++ /dev/null
@@ -1,149 +0,0 @@
-<!DOCTYPE html>
-<html lang="en">
-
-	<head>
-		<meta charset="utf-8">
-		<title>Smooth Scroll</title>
-		<meta name="viewport" content="width=device-width, initial-scale=1.0">
-
-		<!-- stylesheets -->
-		<style type="text/css">
-			body {
-				font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Roboto", "Oxygen", "Ubuntu", "Cantarell", "Fira Sans", "Droid Sans", "Helvetica Neue", sans-serif;
-				font-size: 112.5%;
-				margin-left: auto;
-				margin-right: auto;
-				max-width: 40em;
-				width: 88%;
-			}
-		</style>
-	</head>
-
-	<body>
-
-		<main id="top">
-
-			<nav>
-				<h1>Smooth Scroll</h1>
-				<p><a href="https://github.com/cferdinandi/smooth-scroll">GitHub</a></p>
-				<hr>
-			</nav>
-
-			<section>
-				<p>
-				    <strong>Linear</strong><br>
-				    <a data-easing="linear" href="#bazinga">Linear (no other options)</a><br>
-				</p>
-
-				<p>
-				    <strong>Ease-In</strong><br>
-				    <a data-easing="easeInQuad" href="#bazinga">Quad</a><br>
-				    <a data-easing="easeInCubic" href="#bazinga">Cubic</a><br>
-				    <a data-easing="easeInQuart" href="#bazinga">Quart</a><br>
-				    <a data-easing="easeInQuint" href="#bazinga">Quint</a>
-				</p>
-
-				<p>
-				    <strong>Ease-In-Out</strong><br>
-				    <a data-easing="easeInOutQuad" href="#bazinga">Quad</a><br>
-				    <a data-easing="easeInOutCubic" href="#bazinga">Cubic</a><br>
-				    <a data-easing="easeInOutQuart" href="#bazinga">Quart</a><br>
-				    <a data-easing="easeInOutQuint" href="#bazinga">Quint</a>
-				</p>
-
-				<p>
-				    <strong>Ease-Out</strong><br>
-				    <a data-easing="easeOutQuad" href="#bazinga">Quad</a><br>
-				    <a data-easing="easeOutCubic" href="#bazinga">Cubic</a><br>
-				    <a data-easing="easeOutQuart" href="#bazinga">Quart</a><br>
-				    <a data-easing="easeOutQuint" href="#bazinga">Quint</a>
-				</p>
-
-				<p>
-				    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
-				    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
-				    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.
-				</p>
-
-				<p>
-				    <strong>Non-ASCII Characters</strong><br>
-				    <a href="#中文">中文</a>
-				</p>
-
-				<p>
-				    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
-				    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
-				    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.
-				</p>
-
-				<p id="中文">
-					<strong>中文</strong>
-					<a href="#myymälä">More Special Characters</a>
-				</p>
-
-				<p>
-				    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
-				    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
-				    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.
-				</p>
-
-				<p id="myymälä">myymälä</p>
-
-				<p>
-				    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
-				    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
-				    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.
-				</p>
-
-				<p id="bazinga"><a href="#1@#%^-bottom">Bazinga!</a></p>
-
-				<p>
-				    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
-				    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
-				    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.
-				</p>
-
-				<p id="1@#%^-bottom"><a href="#top">Back to the top</a></p>
-			</section>
-		</main>
-
-		<!-- Javascript -->
-		<script src="http://github.com/dist/smooth-scroll.polyfills.js"></script>
-		<script>
-
-			// Instantiate Scrolls
-			var scroll = new SmoothScroll('a[href*="#"]:not([data-easing])');
-
-			if (document.querySelector('[data-easing]')) {
-				var linear = new SmoothScroll('[data-easing="linear"]', {easing: 'linear'});
-
-				var easeInQuad = new SmoothScroll('[data-easing="easeInQuad"]', {easing: 'easeInQuad'});
-				var easeInCubic = new SmoothScroll('[data-easing="easeInCubic"]', {easing: 'easeInCubic'});
-				var easeInQuart = new SmoothScroll('[data-easing="easeInQuart"]', {easing: 'easeInQuart'});
-				var easeInQuint = new SmoothScroll('[data-easing="easeInQuint"]', {easing: 'easeInQuint'});
-
-				var easeInOutQuad = new SmoothScroll('[data-easing="easeInOutQuad"]', {easing: 'easeInOutQuad'});
-				var easeInOutCubic = new SmoothScroll('[data-easing="easeInOutCubic"]', {easing: 'easeInOutCubic'});
-				var easeInOutQuart = new SmoothScroll('[data-easing="easeInOutQuart"]', {easing: 'easeInOutQuart'});
-				var easeInOutQuint = new SmoothScroll('[data-easing="easeInOutQuint"]', {easing: 'easeInOutQuint'});
-
-				var easeOutQuad = new SmoothScroll('[data-easing="easeOutQuad"]', {easing: 'easeOutQuad'});
-				var easeOutCubic = new SmoothScroll('[data-easing="easeOutCubic"]', {easing: 'easeOutCubic'});
-				var easeOutQuart = new SmoothScroll('[data-easing="easeOutQuart"]', {easing: 'easeOutQuart'});
-				var easeOutQuint = new SmoothScroll('[data-easing="easeOutQuint"]', {easing: 'easeOutQuint'});
-			}
-
-			// // Log scroll events
-			// var logScrollEvent = function (event) {
-			// 	console.log('type:', event.type);
-			// 	console.log('anchor:', event.detail.anchor);
-			// 	console.log('toggle:', event.detail.toggle);
-			// };
-			// document.addEventListener('scrollStart', logScrollEvent, false);
-			// document.addEventListener('scrollStop', logScrollEvent, false);
-			// document.addEventListener('scrollCancel', logScrollEvent, false);
-		</script>
-
-
-	</body>
-</html>
\ No newline at end of file
diff --git a/src/copy/jump-to-top.html b/src/copy/jump-to-top.html
deleted file mode 100644
index 393e4ad..0000000
--- a/src/copy/jump-to-top.html
+++ /dev/null
@@ -1,60 +0,0 @@
-<!DOCTYPE html>
-<html lang="en">
-
-	<head>
-		<meta charset="utf-8">
-		<title>Smooth Scroll</title>
-		<meta name="viewport" content="width=device-width, initial-scale=1.0">
-
-		<!-- stylesheets -->
-		<style type="text/css">
-			body {
-				font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Roboto", "Oxygen", "Ubuntu", "Cantarell", "Fira Sans", "Droid Sans", "Helvetica Neue", sans-serif;
-				font-size: 112.5%;
-				margin-left: auto;
-				margin-right: auto;
-				max-width: 40em;
-				width: 88%;
-			}
-		</style>
-	</head>
-
-	<body>
-
-		<main id="top">
-
-			<nav>
-				<h1>Smooth Scroll</h1>
-				<p><a href="https://github.com/cferdinandi/smooth-scroll">GitHub</a></p>
-				<hr>
-			</nav>
-
-			<section>
-
-				<p>
-				    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
-				    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
-				    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
-				    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
-				    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
-				    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
-				    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
-				    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.
-				</p>
-
-				<p><a href="#">Back to the top</a></p>
-			</section>
-		</main>
-
-		<!-- Javascript -->
-		<script src="http://github.com/dist/smooth-scroll.polyfills.js"></script>
-		<script>
-			// Instantiate Scrolls
-			var scroll = new SmoothScroll('a[href*="#"]', {
-				topOnEmptyHash: false
-			});
-		</script>
-
-
-	</body>
-</html>
\ No newline at end of file
diff --git a/src/copy/speed.html b/src/copy/speed.html
deleted file mode 100644
index 21c834a..0000000
--- a/src/copy/speed.html
+++ /dev/null
@@ -1,69 +0,0 @@
-<!DOCTYPE html>
-<html lang="en">
-
-	<head>
-		<meta charset="utf-8">
-		<title>Smooth Scroll</title>
-		<meta name="viewport" content="width=device-width, initial-scale=1.0">
-
-		<!-- stylesheets -->
-		<style type="text/css">
-			body {
-				font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Roboto", "Oxygen", "Ubuntu", "Cantarell", "Fira Sans", "Droid Sans", "Helvetica Neue", sans-serif;
-				font-size: 112.5%;
-				margin-left: auto;
-				margin-right: auto;
-				max-width: 40em;
-				width: 88%;
-			}
-		</style>
-	</head>
-
-	<body>
-
-		<main id="top">
-
-			<nav>
-				<h1>Smooth Scroll</h1>
-				<p><a href="https://github.com/cferdinandi/smooth-scroll">GitHub</a></p>
-				<hr>
-			</nav>
-
-			<section>
-				<p>
-				    <a href="#bazinga">Click Me</a><br>
-				    <a href="#1@#%^-bottom">Or me</a>
-				</p>
-
-				<p>
-				    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
-				    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
-				    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.
-				</p>
-
-				<p id="bazinga"><a href="#1@#%^-bottom">Bazinga!</a></p>
-
-				<p>
-				    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
-				    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
-				    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.
-				    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
-				    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>
-				    .<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.<br>.
-				</p>
-
-				<p id="1@#%^-bottom"><a href="#top">Back to the top</a></p>
-
-				<p>.<br>.<br>.<br>.<br>.</p>
-			</section>
-		</main>
-
-		<!-- Javascript -->
-		<script src="http://github.com/dist/smooth-scroll.polyfills.js"></script>
-		<script>
-			var scroll = new SmoothScroll('a[href*="#"]');
-		</script>
-
-
-	</body>
-</html>
\ No newline at end of file
diff --git a/src/core.js b/src/core.js
new file mode 100755
index 0000000..25abec6
--- /dev/null
+++ b/src/core.js
@@ -0,0 +1,622 @@
+//
+// Default settings
+//
+
+var defaults = {
+
+	// Selectors
+	ignore: '[data-scroll-ignore]',
+	header: null,
+	topOnEmptyHash: true,
+
+	// Speed & Duration
+	speed: 500,
+	speedAsDuration: false,
+	durationMax: null,
+	durationMin: null,
+	clip: true,
+	offset: 0,
+
+	// Easing
+	easing: 'easeInOutCubic',
+	customEasing: null,
+
+	// History
+	updateURL: true,
+	popstate: true,
+
+	// Custom Events
+	emitEvents: true
+
+};
+
+
+//
+// Utility Methods
+//
+
+/**
+ * Check if browser supports required methods
+ * @return {Boolean} Returns true if all required methods are supported
+ */
+var supports = function () {
+	return (
+		'querySelector' in document &&
+		'addEventListener' in window &&
+		'requestAnimationFrame' in window &&
+		'closest' in window.Element.prototype
+	);
+};
+
+/**
+ * Merge two or more objects together.
+ * @param   {Object}   objects  The objects to merge together
+ * @returns {Object}            Merged values of defaults and options
+ */
+var extend = function () {
+	var merged = {};
+	Array.prototype.forEach.call(arguments, function (obj) {
+		for (var key in obj) {
+			if (!obj.hasOwnProperty(key)) return;
+			merged[key] = obj[key];
+		}
+	});
+	return merged;
+};
+
+/**
+ * Check to see if user prefers reduced motion
+ * @param  {Object} settings Script settings
+ */
+var reduceMotion = function () {
+	if ('matchMedia' in window && window.matchMedia('(prefers-reduced-motion)').matches) {
+		return true;
+	}
+	return false;
+};
+
+/**
+ * Get the height of an element.
+ * @param  {Node} elem The element to get the height of
+ * @return {Number}    The element's height in pixels
+ */
+var getHeight = function (elem) {
+	return parseInt(window.getComputedStyle(elem).height, 10);
+};
+
+/**
+ * Escape special characters for use with querySelector
+ * @author Mathias Bynens
+ * @link https://github.com/mathiasbynens/CSS.escape
+ * @param {String} id The anchor ID to escape
+ */
+var escapeCharacters = function (id) {
+
+	// Remove leading hash
+	if (id.charAt(0) === '#') {
+		id = id.substr(1);
+	}
+
+	var string = String(id);
+	var length = string.length;
+	var index = -1;
+	var codeUnit;
+	var result = '';
+	var firstCodeUnit = string.charCodeAt(0);
+	while (++index < length) {
+		codeUnit = string.charCodeAt(index);
+		// Note: there’s no need to special-case astral symbols, surrogate
+		// pairs, or lone surrogates.
+
+		// If the character is NULL (U+0000), then throw an
+		// `InvalidCharacterError` exception and terminate these steps.
+		if (codeUnit === 0x0000) {
+			throw new InvalidCharacterError(
+				'Invalid character: the input contains U+0000.'
+			);
+		}
+
+		if (
+			// If the character is in the range [\1-\1F] (U+0001 to U+001F) or is
+			// U+007F, […]
+			(codeUnit >= 0x0001 && codeUnit <= 0x001F) || codeUnit == 0x007F ||
+			// If the character is the first character and is in the range [0-9]
+			// (U+0030 to U+0039), […]
+			(index === 0 && codeUnit >= 0x0030 && codeUnit <= 0x0039) ||
+			// If the character is the second character and is in the range [0-9]
+			// (U+0030 to U+0039) and the first character is a `-` (U+002D), […]
+			(
+				index === 1 &&
+				codeUnit >= 0x0030 && codeUnit <= 0x0039 &&
+				firstCodeUnit === 0x002D
+			)
+		) {
+			// http://dev.w3.org/csswg/cssom/#escape-a-character-as-code-point
+			result += '\\' + codeUnit.toString(16) + ' ';
+			continue;
+		}
+
+		// If the character is not handled by one of the above rules and is
+		// greater than or equal to U+0080, is `-` (U+002D) or `_` (U+005F), or
+		// is in one of the ranges [0-9] (U+0030 to U+0039), [A-Z] (U+0041 to
+		// U+005A), or [a-z] (U+0061 to U+007A), […]
+		if (
+			codeUnit >= 0x0080 ||
+			codeUnit === 0x002D ||
+			codeUnit === 0x005F ||
+			codeUnit >= 0x0030 && codeUnit <= 0x0039 ||
+			codeUnit >= 0x0041 && codeUnit <= 0x005A ||
+			codeUnit >= 0x0061 && codeUnit <= 0x007A
+		) {
+			// the character itself
+			result += string.charAt(index);
+			continue;
+		}
+
+		// Otherwise, the escaped character.
+		// http://dev.w3.org/csswg/cssom/#escape-a-character
+		result += '\\' + string.charAt(index);
+
+	}
+
+	// Return sanitized hash
+	return '#' + result;
+
+};
+
+/**
+ * Calculate the easing pattern
+ * @link https://gist.github.com/gre/1650294
+ * @param   {Object} settings Easing pattern
+ * @param   {Number} time     Time animation should take to complete
+ * @returns {Number}
+ */
+var easingPattern = function (settings, time) {
+	var pattern;
+
+	// Default Easing Patterns
+	if (settings.easing === 'easeInQuad') pattern = time * time; // accelerating from zero velocity
+	if (settings.easing === 'easeOutQuad') pattern = time * (2 - time); // decelerating to zero velocity
+	if (settings.easing === 'easeInOutQuad') pattern = time < 0.5 ? 2 * time * time : -1 + (4 - 2 * time) * time; // acceleration until halfway, then deceleration
+	if (settings.easing === 'easeInCubic') pattern = time * time * time; // accelerating from zero velocity
+	if (settings.easing === 'easeOutCubic') pattern = (--time) * time * time + 1; // decelerating to zero velocity
+	if (settings.easing === 'easeInOutCubic') pattern = time < 0.5 ? 4 * time * time * time : (time - 1) * (2 * time - 2) * (2 * time - 2) + 1; // acceleration until halfway, then deceleration
+	if (settings.easing === 'easeInQuart') pattern = time * time * time * time; // accelerating from zero velocity
+	if (settings.easing === 'easeOutQuart') pattern = 1 - (--time) * time * time * time; // decelerating to zero velocity
+	if (settings.easing === 'easeInOutQuart') pattern = time < 0.5 ? 8 * time * time * time * time : 1 - 8 * (--time) * time * time * time; // acceleration until halfway, then deceleration
+	if (settings.easing === 'easeInQuint') pattern = time * time * time * time * time; // accelerating from zero velocity
+	if (settings.easing === 'easeOutQuint') pattern = 1 + (--time) * time * time * time * time; // decelerating to zero velocity
+	if (settings.easing === 'easeInOutQuint') pattern = time < 0.5 ? 16 * time * time * time * time * time : 1 + 16 * (--time) * time * time * time * time; // acceleration until halfway, then deceleration
+
+	// Custom Easing Patterns
+	if (!!settings.customEasing) pattern = settings.customEasing(time);
+
+	return pattern || time; // no easing, no acceleration
+};
+
+/**
+ * Determine the document's height
+ * @returns {Number}
+ */
+var getDocumentHeight = function () {
+	return Math.max(
+		document.body.scrollHeight, document.documentElement.scrollHeight,
+		document.body.offsetHeight, document.documentElement.offsetHeight,
+		document.body.clientHeight, document.documentElement.clientHeight
+	);
+};
+
+/**
+ * Calculate how far to scroll
+ * Clip support added by robjtede - https://github.com/cferdinandi/smooth-scroll/issues/405
+ * @param {Element} anchor       The anchor element to scroll to
+ * @param {Number}  headerHeight Height of a fixed header, if any
+ * @param {Number}  offset       Number of pixels by which to offset scroll
+ * @param {Boolean} clip         If true, adjust scroll distance to prevent abrupt stops near the bottom of the page
+ * @returns {Number}
+ */
+var getEndLocation = function (anchor, headerHeight, offset, clip) {
+	var location = 0;
+	if (anchor.offsetParent) {
+		do {
+			location += anchor.offsetTop;
+			anchor = anchor.offsetParent;
+		} while (anchor);
+	}
+	location = Math.max(location - headerHeight - offset, 0);
+	if (clip) {
+		location = Math.min(location, getDocumentHeight() - window.innerHeight);
+	}
+		return location;
+};
+
+/**
+ * Get the height of the fixed header
+ * @param  {Node}   header The header
+ * @return {Number}        The height of the header
+ */
+var getHeaderHeight = function (header) {
+	return !header ? 0 : (getHeight(header) + header.offsetTop);
+};
+
+/**
+ * Calculate the speed to use for the animation
+ * @param  {Number} distance The distance to travel
+ * @param  {Object} settings The plugin settings
+ * @return {Number}          How fast to animate
+ */
+var getSpeed = function (distance, settings) {
+	var speed = settings.speedAsDuration ? settings.speed : Math.abs(distance / 1000 * settings.speed);
+	if (settings.durationMax && speed > settings.durationMax) return settings.durationMax;
+	if (settings.durationMin && speed < settings.durationMin) return settings.durationMin;
+	return parseInt(speed, 10);
+};
+
+var setHistory = function (options) {
+
+	// Make sure this should run
+	if (!history.replaceState || !options.updateURL || history.state) return;
+
+	// Get the hash to use
+	var hash = window.location.hash;
+	hash = hash ? hash : '';
+
+	// Set a default history
+	history.replaceState(
+		{
+			smoothScroll: JSON.stringify(options),
+			anchor: hash ? hash : window.pageYOffset
+		},
+		document.title,
+		hash ? hash : window.location.href
+	);
+
+};
+
+/**
+ * Update the URL
+ * @param  {Node}    anchor  The anchor that was scrolled to
+ * @param  {Boolean} isNum   If true, anchor is a number
+ * @param  {Object}  options Settings for Smooth Scroll
+ */
+var updateURL = function (anchor, isNum, options) {
+
+	// Bail if the anchor is a number
+	if (isNum) return;
+
+	// Verify that pushState is supported and the updateURL option is enabled
+	if (!history.pushState || !options.updateURL) return;
+
+	// Update URL
+	history.pushState(
+		{
+			smoothScroll: JSON.stringify(options),
+			anchor: anchor.id
+		},
+		document.title,
+		anchor === document.documentElement ? '#top' : '#' + anchor.id
+	);
+
+};
+
+/**
+ * Bring the anchored element into focus
+ * @param {Node}     anchor      The anchor element
+ * @param {Number}   endLocation The end location to scroll to
+ * @param {Boolean}  isNum       If true, scroll is to a position rather than an element
+ */
+var adjustFocus = function (anchor, endLocation, isNum) {
+
+	// Is scrolling to top of page, blur
+	if (anchor === 0) {
+		document.body.focus();
+	}
+
+	// Don't run if scrolling to a number on the page
+	if (isNum) return;
+
+	// Otherwise, bring anchor element into focus
+	anchor.focus();
+	if (document.activeElement !== anchor) {
+		anchor.setAttribute('tabindex', '-1');
+		anchor.focus();
+		anchor.style.outline = 'none';
+	}
+	window.scrollTo(0 , endLocation);
+
+};
+
+/**
+ * Emit a custom event
+ * @param  {String} type    The event type
+ * @param  {Object} options The settings object
+ * @param  {Node}   anchor  The anchor element
+ * @param  {Node}   toggle  The toggle element
+ */
+var emitEvent = function (type, options, anchor, toggle) {
+	if (!options.emitEvents || typeof window.CustomEvent !== 'function') return;
+	var event = new CustomEvent(type, {
+		bubbles: true,
+		detail: {
+			anchor: anchor,
+			toggle: toggle
+		}
+	});
+	document.dispatchEvent(event);
+};
+
+
+//
+// SmoothScroll Constructor
+//
+
+var SmoothScroll = function (selector, options) {
+
+	//
+	// Variables
+	//
+
+	var smoothScroll = {}; // Object for public APIs
+	var settings, anchor, toggle, fixedHeader, eventTimeout, animationInterval;
+
+
+	//
+	// Methods
+	//
+
+	/**
+	 * Cancel a scroll-in-progress
+	 */
+	smoothScroll.cancelScroll = function (noEvent) {
+		cancelAnimationFrame(animationInterval);
+		animationInterval = null;
+		if (noEvent) return;
+		emitEvent('scrollCancel', settings);
+	};
+
+	/**
+	 * Start/stop the scrolling animation
+	 * @param {Node|Number} anchor  The element or position to scroll to
+	 * @param {Element}     toggle  The element that toggled the scroll event
+	 * @param {Object}      options
+	 */
+	smoothScroll.animateScroll = function (anchor, toggle, options) {
+
+		// Cancel any in progress scrolls
+		smoothScroll.cancelScroll();
+
+		// Local settings
+		var _settings = extend(settings || defaults, options || {}); // Merge user options with defaults
+
+		// Selectors and variables
+		var isNum = Object.prototype.toString.call(anchor) === '[object Number]' ? true : false;
+		var anchorElem = isNum || !anchor.tagName ? null : anchor;
+		if (!isNum && !anchorElem) return;
+		var startLocation = window.pageYOffset; // Current location on the page
+		if (_settings.header && !fixedHeader) {
+			// Get the fixed header if not already set
+			fixedHeader = document.querySelector(_settings.header);
+		}
+		var headerHeight = getHeaderHeight(fixedHeader);
+		var endLocation = isNum ? anchor : getEndLocation(anchorElem, headerHeight, parseInt((typeof _settings.offset === 'function' ? _settings.offset(anchor, toggle) : _settings.offset), 10), _settings.clip); // Location to scroll to
+		var distance = endLocation - startLocation; // distance to travel
+		var documentHeight = getDocumentHeight();
+		var timeLapsed = 0;
+		var speed = getSpeed(distance, _settings);
+		var start, percentage, position;
+
+		/**
+		 * Stop the scroll animation when it reaches its target (or the bottom/top of page)
+		 * @param {Number} position Current position on the page
+		 * @param {Number} endLocation Scroll to location
+		 * @param {Number} animationInterval How much to scroll on this loop
+		 */
+		var stopAnimateScroll = function (position, endLocation) {
+
+			// Get the current location
+			var currentLocation = window.pageYOffset;
+
+			// Check if the end location has been reached yet (or we've hit the end of the document)
+			if (position == endLocation || currentLocation == endLocation || ((startLocation < endLocation && window.innerHeight + currentLocation) >= documentHeight)) {
+
+				// Clear the animation timer
+				smoothScroll.cancelScroll(true);
+
+				// Bring the anchored element into focus
+				adjustFocus(anchor, endLocation, isNum);
+
+				// Emit a custom event
+				emitEvent('scrollStop', _settings, anchor, toggle);
+
+				// Reset start
+				start = null;
+				animationInterval = null;
+
+				return true;
+
+			}
+		};
+
+		/**
+		 * Loop scrolling animation
+		 */
+		var loopAnimateScroll = function (timestamp) {
+			if (!start) { start = timestamp; }
+			timeLapsed += timestamp - start;
+			percentage = speed === 0 ? 0 : (timeLapsed / speed);
+			percentage = (percentage > 1) ? 1 : percentage;
+			position = startLocation + (distance * easingPattern(_settings, percentage));
+			window.scrollTo(0, Math.floor(position));
+			if (!stopAnimateScroll(position, endLocation)) {
+				animationInterval = window.requestAnimationFrame(loopAnimateScroll);
+				start = timestamp;
+			}
+		};
+
+		/**
+		 * Reset position to fix weird iOS bug
+		 * @link https://github.com/cferdinandi/smooth-scroll/issues/45
+		 */
+		if (window.pageYOffset === 0) {
+			window.scrollTo(0, 0);
+		}
+
+		// Update the URL
+		updateURL(anchor, isNum, _settings);
+
+		// If the user prefers reduced motion, jump to location
+		if (reduceMotion()) {
+			adjustFocus(anchor, Math.floor(endLocation), false);
+			return;
+		}
+
+		// Emit a custom event
+		emitEvent('scrollStart', _settings, anchor, toggle);
+
+		// Start scrolling animation
+		smoothScroll.cancelScroll(true);
+		window.requestAnimationFrame(loopAnimateScroll);
+
+	};
+
+	/**
+	 * If smooth scroll element clicked, animate scroll
+	 */
+	var clickHandler = function (event) {
+
+		// Don't run if event was canceled but still bubbled up
+		// By @mgreter - https://github.com/cferdinandi/smooth-scroll/pull/462/
+		if (event.defaultPrevented) return;
+
+		// Don't run if right-click or command/control + click or shift + click
+		if (event.button !== 0 || event.metaKey || event.ctrlKey || event.shiftKey) return;
+
+		// Check if event.target has closest() method
+		// By @totegi - https://github.com/cferdinandi/smooth-scroll/pull/401/
+		if (!('closest' in event.target)) return;
+
+		// Check if a smooth scroll link was clicked
+		toggle = event.target.closest(selector);
+		if (!toggle || toggle.tagName.toLowerCase() !== 'a' || event.target.closest(settings.ignore)) return;
+
+		// Only run if link is an anchor and points to the current page
+		if (toggle.hostname !== window.location.hostname || toggle.pathname !== window.location.pathname || !/#/.test(toggle.href)) return;
+
+		// Get an escaped version of the hash
+		var hash;
+		try {
+			hash = escapeCharacters(decodeURIComponent(toggle.hash));
+		} catch(e) {
+			hash = escapeCharacters(toggle.hash);
+		}
+
+		// Get the anchored element
+		var anchor;
+		if (hash === '#') {
+			if (!settings.topOnEmptyHash) return;
+			anchor = document.documentElement;
+		} else {
+			anchor = document.querySelector(hash);
+		}
+		anchor = !anchor && hash === '#top' ? document.documentElement : anchor;
+
+		// If anchored element exists, scroll to it
+		if (!anchor) return;
+		event.preventDefault();
+		setHistory(settings);
+		smoothScroll.animateScroll(anchor, toggle);
+
+	};
+
+	/**
+	 * Animate scroll on popstate events
+	 */
+	var popstateHandler = function () {
+
+		// Stop if history.state doesn't exist (ex. if clicking on a broken anchor link).
+		// fixes `Cannot read property 'smoothScroll' of null` error getting thrown.
+		if (history.state === null) return;
+
+		// Only run if state is a popstate record for this instantiation
+		if (!history.state.smoothScroll || history.state.smoothScroll !== JSON.stringify(settings)) return;
+
+		// Get the anchor
+		var anchor = history.state.anchor;
+		if (typeof anchor === 'string' && anchor) {
+			anchor = document.querySelector(escapeCharacters(history.state.anchor));
+			if (!anchor) return;
+		}
+
+		// Animate scroll to anchor link
+		smoothScroll.animateScroll(anchor, null, {updateURL: false});
+
+	};
+
+	/**
+	 * Destroy the current initialization.
+	 */
+	smoothScroll.destroy = function () {
+
+		// If plugin isn't already initialized, stop
+		if (!settings) return;
+
+		// Remove event listeners
+		document.removeEventListener('click', clickHandler, false);
+		window.removeEventListener('popstate', popstateHandler, false);
+
+		// Cancel any scrolls-in-progress
+		smoothScroll.cancelScroll();
+
+		// Reset variables
+		settings = null;
+		anchor = null;
+		toggle = null;
+		fixedHeader = null;
+		eventTimeout = null;
+		animationInterval = null;
+
+	};
+
+	/**
+	 * Initialize Smooth Scroll
+	 * @param {Object} options User settings
+	 */
+	var init = function () {
+
+		// feature test
+		if (!supports()) throw 'Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.';
+
+		// Destroy any existing initializations
+		smoothScroll.destroy();
+
+		// Selectors and variables
+		settings = extend(defaults, options || {}); // Merge user options with defaults
+		fixedHeader = settings.header ? document.querySelector(settings.header) : null; // Get the fixed header
+
+		// When a toggle is clicked, run the click handler
+		document.addEventListener('click', clickHandler, false);
+
+		// If updateURL and popState are enabled, listen for pop events
+		if (settings.updateURL && settings.popstate) {
+			window.addEventListener('popstate', popstateHandler, false);
+		}
+
+	};
+
+
+	//
+	// Initialize plugin
+	//
+
+	init();
+
+
+	//
+	// Public APIs
+	//
+
+	return smoothScroll;
+
+};
+
+export default SmoothScroll;
\ No newline at end of file
diff --git a/src/js/smooth-scroll/smooth-scroll.js b/src/js/smooth-scroll/smooth-scroll.js
deleted file mode 100755
index 16f7b0a..0000000
--- a/src/js/smooth-scroll/smooth-scroll.js
+++ /dev/null
@@ -1,638 +0,0 @@
-(function (root, factory) {
-	if (typeof define === 'function' && define.amd) {
-		define([], function () {
-			return factory(root);
-		});
-	} else if (typeof exports === 'object') {
-		module.exports = factory(root);
-	} else {
-		root.SmoothScroll = factory(root);
-	}
-})(typeof global !== 'undefined' ? global : typeof window !== 'undefined' ? window : this, function (window) {
-
-	'use strict';
-
-	//
-	// Default settings
-	//
-
-	var defaults = {
-
-		// Selectors
-		ignore: '[data-scroll-ignore]',
-		header: null,
-		topOnEmptyHash: true,
-
-		// Speed & Duration
-		speed: 500,
-		speedAsDuration: false,
-		durationMax: null,
-		durationMin: null,
-		clip: true,
-		offset: 0,
-
-		// Easing
-		easing: 'easeInOutCubic',
-		customEasing: null,
-
-		// History
-		updateURL: true,
-		popstate: true,
-
-		// Custom Events
-		emitEvents: true
-
-	};
-
-
-	//
-	// Utility Methods
-	//
-
-	/**
-	 * Check if browser supports required methods
-	 * @return {Boolean} Returns true if all required methods are supported
-	 */
-	var supports = function () {
-		return (
-			'querySelector' in document &&
-			'addEventListener' in window &&
-			'requestAnimationFrame' in window &&
-			'closest' in window.Element.prototype
-		);
-	};
-
-	/**
-	 * Merge two or more objects together.
-	 * @param   {Object}   objects  The objects to merge together
-	 * @returns {Object}            Merged values of defaults and options
-	 */
-	var extend = function () {
-		var merged = {};
-		Array.prototype.forEach.call(arguments, function (obj) {
-			for (var key in obj) {
-				if (!obj.hasOwnProperty(key)) return;
-				merged[key] = obj[key];
-			}
-		});
-		return merged;
-	};
-
-	/**
-	 * Check to see if user prefers reduced motion
-	 * @param  {Object} settings Script settings
-	 */
-	var reduceMotion = function () {
-		if ('matchMedia' in window && window.matchMedia('(prefers-reduced-motion)').matches) {
-			return true;
-		}
-		return false;
-	};
-
-	/**
-	 * Get the height of an element.
-	 * @param  {Node} elem The element to get the height of
-	 * @return {Number}    The element's height in pixels
-	 */
-	var getHeight = function (elem) {
-		return parseInt(window.getComputedStyle(elem).height, 10);
-	};
-
-	/**
-	 * Escape special characters for use with querySelector
-	 * @author Mathias Bynens
-	 * @link https://github.com/mathiasbynens/CSS.escape
-	 * @param {String} id The anchor ID to escape
-	 */
-	var escapeCharacters = function (id) {
-
-		// Remove leading hash
-		if (id.charAt(0) === '#') {
-			id = id.substr(1);
-		}
-
-		var string = String(id);
-		var length = string.length;
-		var index = -1;
-		var codeUnit;
-		var result = '';
-		var firstCodeUnit = string.charCodeAt(0);
-		while (++index < length) {
-			codeUnit = string.charCodeAt(index);
-			// Note: there’s no need to special-case astral symbols, surrogate
-			// pairs, or lone surrogates.
-
-			// If the character is NULL (U+0000), then throw an
-			// `InvalidCharacterError` exception and terminate these steps.
-			if (codeUnit === 0x0000) {
-				throw new InvalidCharacterError(
-					'Invalid character: the input contains U+0000.'
-				);
-			}
-
-			if (
-				// If the character is in the range [\1-\1F] (U+0001 to U+001F) or is
-				// U+007F, […]
-				(codeUnit >= 0x0001 && codeUnit <= 0x001F) || codeUnit == 0x007F ||
-				// If the character is the first character and is in the range [0-9]
-				// (U+0030 to U+0039), […]
-				(index === 0 && codeUnit >= 0x0030 && codeUnit <= 0x0039) ||
-				// If the character is the second character and is in the range [0-9]
-				// (U+0030 to U+0039) and the first character is a `-` (U+002D), […]
-				(
-					index === 1 &&
-					codeUnit >= 0x0030 && codeUnit <= 0x0039 &&
-					firstCodeUnit === 0x002D
-				)
-			) {
-				// http://dev.w3.org/csswg/cssom/#escape-a-character-as-code-point
-				result += '\\' + codeUnit.toString(16) + ' ';
-				continue;
-			}
-
-			// If the character is not handled by one of the above rules and is
-			// greater than or equal to U+0080, is `-` (U+002D) or `_` (U+005F), or
-			// is in one of the ranges [0-9] (U+0030 to U+0039), [A-Z] (U+0041 to
-			// U+005A), or [a-z] (U+0061 to U+007A), […]
-			if (
-				codeUnit >= 0x0080 ||
-				codeUnit === 0x002D ||
-				codeUnit === 0x005F ||
-				codeUnit >= 0x0030 && codeUnit <= 0x0039 ||
-				codeUnit >= 0x0041 && codeUnit <= 0x005A ||
-				codeUnit >= 0x0061 && codeUnit <= 0x007A
-			) {
-				// the character itself
-				result += string.charAt(index);
-				continue;
-			}
-
-			// Otherwise, the escaped character.
-			// http://dev.w3.org/csswg/cssom/#escape-a-character
-			result += '\\' + string.charAt(index);
-
-		}
-
-		// Return sanitized hash
-		return '#' + result;
-
-	};
-
-	/**
-	 * Calculate the easing pattern
-	 * @link https://gist.github.com/gre/1650294
-	 * @param   {Object} settings Easing pattern
-	 * @param   {Number} time     Time animation should take to complete
-	 * @returns {Number}
-	 */
-	var easingPattern = function (settings, time) {
-		var pattern;
-
-		// Default Easing Patterns
-		if (settings.easing === 'easeInQuad') pattern = time * time; // accelerating from zero velocity
-		if (settings.easing === 'easeOutQuad') pattern = time * (2 - time); // decelerating to zero velocity
-		if (settings.easing === 'easeInOutQuad') pattern = time < 0.5 ? 2 * time * time : -1 + (4 - 2 * time) * time; // acceleration until halfway, then deceleration
-		if (settings.easing === 'easeInCubic') pattern = time * time * time; // accelerating from zero velocity
-		if (settings.easing === 'easeOutCubic') pattern = (--time) * time * time + 1; // decelerating to zero velocity
-		if (settings.easing === 'easeInOutCubic') pattern = time < 0.5 ? 4 * time * time * time : (time - 1) * (2 * time - 2) * (2 * time - 2) + 1; // acceleration until halfway, then deceleration
-		if (settings.easing === 'easeInQuart') pattern = time * time * time * time; // accelerating from zero velocity
-		if (settings.easing === 'easeOutQuart') pattern = 1 - (--time) * time * time * time; // decelerating to zero velocity
-		if (settings.easing === 'easeInOutQuart') pattern = time < 0.5 ? 8 * time * time * time * time : 1 - 8 * (--time) * time * time * time; // acceleration until halfway, then deceleration
-		if (settings.easing === 'easeInQuint') pattern = time * time * time * time * time; // accelerating from zero velocity
-		if (settings.easing === 'easeOutQuint') pattern = 1 + (--time) * time * time * time * time; // decelerating to zero velocity
-		if (settings.easing === 'easeInOutQuint') pattern = time < 0.5 ? 16 * time * time * time * time * time : 1 + 16 * (--time) * time * time * time * time; // acceleration until halfway, then deceleration
-
-		// Custom Easing Patterns
-		if (!!settings.customEasing) pattern = settings.customEasing(time);
-
-		return pattern || time; // no easing, no acceleration
-	};
-
-	/**
-	 * Determine the document's height
-	 * @returns {Number}
-	 */
-	var getDocumentHeight = function () {
-		return Math.max(
-			document.body.scrollHeight, document.documentElement.scrollHeight,
-			document.body.offsetHeight, document.documentElement.offsetHeight,
-			document.body.clientHeight, document.documentElement.clientHeight
-		);
-	};
-
-	/**
-	 * Calculate how far to scroll
-	 * Clip support added by robjtede - https://github.com/cferdinandi/smooth-scroll/issues/405
-	 * @param {Element} anchor       The anchor element to scroll to
-	 * @param {Number}  headerHeight Height of a fixed header, if any
-	 * @param {Number}  offset       Number of pixels by which to offset scroll
-	 * @param {Boolean} clip         If true, adjust scroll distance to prevent abrupt stops near the bottom of the page
-	 * @returns {Number}
-	 */
-	var getEndLocation = function (anchor, headerHeight, offset, clip) {
-		var location = 0;
-		if (anchor.offsetParent) {
-			do {
-				location += anchor.offsetTop;
-				anchor = anchor.offsetParent;
-			} while (anchor);
-		}
-		location = Math.max(location - headerHeight - offset, 0);
-		if (clip) {
-			location = Math.min(location, getDocumentHeight() - window.innerHeight);
-		}
- 		return location;
-	};
-
-	/**
-	 * Get the height of the fixed header
-	 * @param  {Node}   header The header
-	 * @return {Number}        The height of the header
-	 */
-	var getHeaderHeight = function (header) {
-		return !header ? 0 : (getHeight(header) + header.offsetTop);
-	};
-
-	/**
-	 * Calculate the speed to use for the animation
-	 * @param  {Number} distance The distance to travel
-	 * @param  {Object} settings The plugin settings
-	 * @return {Number}          How fast to animate
-	 */
-	var getSpeed = function (distance, settings) {
-		var speed = settings.speedAsDuration ? settings.speed : Math.abs(distance / 1000 * settings.speed);
-		if (settings.durationMax && speed > settings.durationMax) return settings.durationMax;
-		if (settings.durationMin && speed < settings.durationMin) return settings.durationMin;
-		return parseInt(speed, 10);
-	};
-
-	var setHistory = function (options) {
-
-		// Make sure this should run
-		if (!history.replaceState || !options.updateURL || history.state) return;
-
-		// Get the hash to use
-		var hash = window.location.hash;
-		hash = hash ? hash : '';
-
-		// Set a default history
-		history.replaceState(
-			{
-				smoothScroll: JSON.stringify(options),
-				anchor: hash ? hash : window.pageYOffset
-			},
-			document.title,
-			hash ? hash : window.location.href
-		);
-
-	};
-
-	/**
-	 * Update the URL
-	 * @param  {Node}    anchor  The anchor that was scrolled to
-	 * @param  {Boolean} isNum   If true, anchor is a number
-	 * @param  {Object}  options Settings for Smooth Scroll
-	 */
-	var updateURL = function (anchor, isNum, options) {
-
-		// Bail if the anchor is a number
-		if (isNum) return;
-
-		// Verify that pushState is supported and the updateURL option is enabled
-		if (!history.pushState || !options.updateURL) return;
-
-		// Update URL
-		history.pushState(
-			{
-				smoothScroll: JSON.stringify(options),
-				anchor: anchor.id
-			},
-			document.title,
-			anchor === document.documentElement ? '#top' : '#' + anchor.id
-		);
-
-	};
-
-	/**
-	 * Bring the anchored element into focus
-	 * @param {Node}     anchor      The anchor element
-	 * @param {Number}   endLocation The end location to scroll to
-	 * @param {Boolean}  isNum       If true, scroll is to a position rather than an element
-	 */
-	var adjustFocus = function (anchor, endLocation, isNum) {
-
-		// Is scrolling to top of page, blur
-		if (anchor === 0) {
-			document.body.focus();
-		}
-
-		// Don't run if scrolling to a number on the page
-		if (isNum) return;
-
-		// Otherwise, bring anchor element into focus
-		anchor.focus();
-		if (document.activeElement !== anchor) {
-			anchor.setAttribute('tabindex', '-1');
-			anchor.focus();
-			anchor.style.outline = 'none';
-		}
-		window.scrollTo(0 , endLocation);
-
-	};
-
-	/**
-	 * Emit a custom event
-	 * @param  {String} type    The event type
-	 * @param  {Object} options The settings object
-	 * @param  {Node}   anchor  The anchor element
-	 * @param  {Node}   toggle  The toggle element
-	 */
-	var emitEvent = function (type, options, anchor, toggle) {
-		if (!options.emitEvents || typeof window.CustomEvent !== 'function') return;
-		var event = new CustomEvent(type, {
-			bubbles: true,
-			detail: {
-				anchor: anchor,
-				toggle: toggle
-			}
-		});
-		document.dispatchEvent(event);
-	};
-
-
-	//
-	// SmoothScroll Constructor
-	//
-
-	var SmoothScroll = function (selector, options) {
-
-		//
-		// Variables
-		//
-
-		var smoothScroll = {}; // Object for public APIs
-		var settings, anchor, toggle, fixedHeader, eventTimeout, animationInterval;
-
-
-		//
-		// Methods
-		//
-
-		/**
-		 * Cancel a scroll-in-progress
-		 */
-		smoothScroll.cancelScroll = function (noEvent) {
-			cancelAnimationFrame(animationInterval);
-			animationInterval = null;
-			if (noEvent) return;
-			emitEvent('scrollCancel', settings);
-		};
-
-		/**
-		 * Start/stop the scrolling animation
-		 * @param {Node|Number} anchor  The element or position to scroll to
-		 * @param {Element}     toggle  The element that toggled the scroll event
-		 * @param {Object}      options
-		 */
-		smoothScroll.animateScroll = function (anchor, toggle, options) {
-
-			// Cancel any in progress scrolls
-			smoothScroll.cancelScroll();
-
-			// Local settings
-			var _settings = extend(settings || defaults, options || {}); // Merge user options with defaults
-
-			// Selectors and variables
-			var isNum = Object.prototype.toString.call(anchor) === '[object Number]' ? true : false;
-			var anchorElem = isNum || !anchor.tagName ? null : anchor;
-			if (!isNum && !anchorElem) return;
-			var startLocation = window.pageYOffset; // Current location on the page
-			if (_settings.header && !fixedHeader) {
-				// Get the fixed header if not already set
-				fixedHeader = document.querySelector(_settings.header);
-			}
-			var headerHeight = getHeaderHeight(fixedHeader);
-			var endLocation = isNum ? anchor : getEndLocation(anchorElem, headerHeight, parseInt((typeof _settings.offset === 'function' ? _settings.offset(anchor, toggle) : _settings.offset), 10), _settings.clip); // Location to scroll to
-			var distance = endLocation - startLocation; // distance to travel
-			var documentHeight = getDocumentHeight();
-			var timeLapsed = 0;
-			var speed = getSpeed(distance, _settings);
-			var start, percentage, position;
-
-			/**
-			 * Stop the scroll animation when it reaches its target (or the bottom/top of page)
-			 * @param {Number} position Current position on the page
-			 * @param {Number} endLocation Scroll to location
-			 * @param {Number} animationInterval How much to scroll on this loop
-			 */
-			var stopAnimateScroll = function (position, endLocation) {
-
-				// Get the current location
-				var currentLocation = window.pageYOffset;
-
-				// Check if the end location has been reached yet (or we've hit the end of the document)
-				if (position == endLocation || currentLocation == endLocation || ((startLocation < endLocation && window.innerHeight + currentLocation) >= documentHeight)) {
-
-					// Clear the animation timer
-					smoothScroll.cancelScroll(true);
-
-					// Bring the anchored element into focus
-					adjustFocus(anchor, endLocation, isNum);
-
-					// Emit a custom event
-					emitEvent('scrollStop', _settings, anchor, toggle);
-
-					// Reset start
-					start = null;
-					animationInterval = null;
-
-					return true;
-
-				}
-			};
-
-			/**
-			 * Loop scrolling animation
-			 */
-			var loopAnimateScroll = function (timestamp) {
-				if (!start) { start = timestamp; }
-				timeLapsed += timestamp - start;
-				percentage = speed === 0 ? 0 : (timeLapsed / speed);
-				percentage = (percentage > 1) ? 1 : percentage;
-				position = startLocation + (distance * easingPattern(_settings, percentage));
-				window.scrollTo(0, Math.floor(position));
-				if (!stopAnimateScroll(position, endLocation)) {
-					animationInterval = window.requestAnimationFrame(loopAnimateScroll);
-					start = timestamp;
-				}
-			};
-
-			/**
-			 * Reset position to fix weird iOS bug
-			 * @link https://github.com/cferdinandi/smooth-scroll/issues/45
-			 */
-			if (window.pageYOffset === 0) {
-				window.scrollTo(0, 0);
-			}
-
-			// Update the URL
-			updateURL(anchor, isNum, _settings);
-
-			// If the user prefers reduced motion, jump to location
-			if (reduceMotion()) {
-				adjustFocus(anchor, Math.floor(endLocation), false);
-				return;
-			}
-
-			// Emit a custom event
-			emitEvent('scrollStart', _settings, anchor, toggle);
-
-			// Start scrolling animation
-			smoothScroll.cancelScroll(true);
-			window.requestAnimationFrame(loopAnimateScroll);
-
-		};
-
-		/**
-		 * If smooth scroll element clicked, animate scroll
-		 */
-		var clickHandler = function (event) {
-
-			// Don't run if event was canceled but still bubbled up
-			// By @mgreter - https://github.com/cferdinandi/smooth-scroll/pull/462/
-			if (event.defaultPrevented) return;
-
-			// Don't run if right-click or command/control + click or shift + click
-			if (event.button !== 0 || event.metaKey || event.ctrlKey || event.shiftKey) return;
-
-			// Check if event.target has closest() method
-			// By @totegi - https://github.com/cferdinandi/smooth-scroll/pull/401/
-			if (!('closest' in event.target)) return;
-
-			// Check if a smooth scroll link was clicked
-			toggle = event.target.closest(selector);
-			if (!toggle || toggle.tagName.toLowerCase() !== 'a' || event.target.closest(settings.ignore)) return;
-
-			// Only run if link is an anchor and points to the current page
-			if (toggle.hostname !== window.location.hostname || toggle.pathname !== window.location.pathname || !/#/.test(toggle.href)) return;
-
-			// Get an escaped version of the hash
-			var hash;
-			try {
-				hash = escapeCharacters(decodeURIComponent(toggle.hash));
-			} catch(e) {
-				hash = escapeCharacters(toggle.hash);
-			}
-
-			// Get the anchored element
-			var anchor;
-			if (hash === '#') {
-				if (!settings.topOnEmptyHash) return;
-				anchor = document.documentElement;
-			} else {
-				anchor = document.querySelector(hash);
-			}
-			anchor = !anchor && hash === '#top' ? document.documentElement : anchor;
-
-			// If anchored element exists, scroll to it
-			if (!anchor) return;
-			event.preventDefault();
-			setHistory(settings);
-			smoothScroll.animateScroll(anchor, toggle);
-
-		};
-
-		/**
-		 * Animate scroll on popstate events
-		 */
-		var popstateHandler = function () {
-
-			// Stop if history.state doesn't exist (ex. if clicking on a broken anchor link).
-			// fixes `Cannot read property 'smoothScroll' of null` error getting thrown.
-			if (history.state === null) return;
-
-			// Only run if state is a popstate record for this instantiation
-			if (!history.state.smoothScroll || history.state.smoothScroll !== JSON.stringify(settings)) return;
-
-			// Get the anchor
-			var anchor = history.state.anchor;
-			if (typeof anchor === 'string' && anchor) {
-				anchor = document.querySelector(escapeCharacters(history.state.anchor));
-				if (!anchor) return;
-			}
-
-			// Animate scroll to anchor link
-			smoothScroll.animateScroll(anchor, null, {updateURL: false});
-
-		};
-
-		/**
-		 * Destroy the current initialization.
-		 */
-		smoothScroll.destroy = function () {
-
-			// If plugin isn't already initialized, stop
-			if (!settings) return;
-
-			// Remove event listeners
-			document.removeEventListener('click', clickHandler, false);
-			window.removeEventListener('popstate', popstateHandler, false);
-
-			// Cancel any scrolls-in-progress
-			smoothScroll.cancelScroll();
-
-			// Reset variables
-			settings = null;
-			anchor = null;
-			toggle = null;
-			fixedHeader = null;
-			eventTimeout = null;
-			animationInterval = null;
-
-		};
-
-		/**
-		 * Initialize Smooth Scroll
-		 * @param {Object} options User settings
-		 */
-		var init = function () {
-
-			// feature test
-			if (!supports()) throw 'Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.';
-
-			// Destroy any existing initializations
-			smoothScroll.destroy();
-
-			// Selectors and variables
-			settings = extend(defaults, options || {}); // Merge user options with defaults
-			fixedHeader = settings.header ? document.querySelector(settings.header) : null; // Get the fixed header
-
-			// When a toggle is clicked, run the click handler
-			document.addEventListener('click', clickHandler, false);
-
-			// If updateURL and popState are enabled, listen for pop events
-			if (settings.updateURL && settings.popstate) {
-				window.addEventListener('popstate', popstateHandler, false);
-			}
-
-		};
-
-
-		//
-		// Initialize plugin
-		//
-
-		init();
-
-
-		//
-		// Public APIs
-		//
-
-		return smoothScroll;
-
-	};
-
-	return SmoothScroll;
-
-});
diff --git a/src/smooth-scroll.js b/src/smooth-scroll.js
new file mode 100755
index 0000000..e444ec8
--- /dev/null
+++ b/src/smooth-scroll.js
@@ -0,0 +1,3 @@
+import SmoothScroll from './core.js';
+
+export default SmoothScroll;
\ No newline at end of file
diff --git a/src/smooth-scroll.polyfills.js b/src/smooth-scroll.polyfills.js
new file mode 100755
index 0000000..da09ab8
--- /dev/null
+++ b/src/smooth-scroll.polyfills.js
@@ -0,0 +1,6 @@
+import './_closest.polyfill.js';
+import './_customEvent.polyfill.js';
+import './_requestAnimationFrame.polyfill.js';
+import SmoothScroll from './core.js';
+
+export default SmoothScroll;
\ No newline at end of file

From 41237da3bea633956d8554bfded1ee521b3b1877 Mon Sep 17 00:00:00 2001
From: cferdinandi <chris@gomakethings.com>
Date: Mon, 27 Apr 2020 15:46:22 -0400
Subject: [PATCH 50/51] Added deprecration notice

---
 README.md | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/README.md b/README.md
index faf9895..ea35dfa 100755
--- a/README.md
+++ b/README.md
@@ -1,3 +1,19 @@
+**DEPRECATION NOTICE:**
+
+Smooth Scroll is, without a doubt, my most popular and widely used plugin.
+
+But in the time since I created it, a CSS-only method for smooth scrolling has emerged, and now has fantastic browser support. It can do things this plugin can't (like scrolling to anchor links from another page), and addresses bugs and limitations in the plugin that I have never gotten around to fixing.
+
+This plugin has run its course, and the browser now offers a better, more feature rich and resilient solution out-of-the-box.
+
+Learn [how to animate scrolling to anchor links with one line of CSS](https://gomakethings.com/how-to-animate-scrolling-to-anchor-links-with-one-line-of-css/), and [how to prevent anchor links from scrolling behind fixed or sticky headers](https://gomakethings.com/how-to-prevent-anchor-links-from-scrolling-behind-a-sticky-header-with-one-line-of-css/).
+
+Thanks for the years of support!
+
+- Chris
+
+---
+
 # Smooth Scroll [![Build Status](https://travis-ci.org/cferdinandi/smooth-scroll.svg)](https://travis-ci.org/cferdinandi/smooth-scroll)
 A lightweight script to animate scrolling to anchor links. Smooth Scroll works great with [Gumshoe](https://github.com/cferdinandi/gumshoe).
 

From 416e2472dc47f1117b5acb1779b786187d367688 Mon Sep 17 00:00:00 2001
From: cferdinandi <chris@gomakethings.com>
Date: Mon, 27 Apr 2020 15:46:54 -0400
Subject: [PATCH 51/51] updated readme

---
 README.md | 2 --
 1 file changed, 2 deletions(-)

diff --git a/README.md b/README.md
index ea35dfa..ed77c95 100755
--- a/README.md
+++ b/README.md
@@ -10,8 +10,6 @@ Learn [how to animate scrolling to anchor links with one line of CSS](https://go
 
 Thanks for the years of support!
 
-- Chris
-
 ---
 
 # Smooth Scroll [![Build Status](https://travis-ci.org/cferdinandi/smooth-scroll.svg)](https://travis-ci.org/cferdinandi/smooth-scroll)