diff --git a/.gitignore b/.gitignore
index 802b41f..93e7e2e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,10 +1,10 @@
 node_modules/
 amd-test/browser-source-map-support.js
 amd-test/script.js
-amd-test/script.map
+amd-test/script.js.map
 browserify-test/compiled.js
 browserify-test/script.js
-browserify-test/script.map
+browserify-test/script.js.map
 header-test/script.js
-header-test/script.map
-webpack-test/compiled.js
\ No newline at end of file
+header-test/script.js.map
+webpack-test/compiled.js
diff --git a/README.md b/README.md
index 0e85cc1..40228b7 100644
--- a/README.md
+++ b/README.md
@@ -102,8 +102,8 @@ require('source-map-support').install({
 });
 ```
 
-The module will by default assume a browser environment if XMLHttpRequest and window are defined. If either of these do not exist it will instead assume a node environment. 
-In some rare cases, e.g. when running a browser emulation and where both variables are also set, you can explictly specify the environment to be either 'browser' or 'node'. 
+The module will by default assume a browser environment if XMLHttpRequest and window are defined. If either of these do not exist it will instead assume a node environment.
+In some rare cases, e.g. when running a browser emulation and where both variables are also set, you can explictly specify the environment to be either 'browser' or 'node'.
 
 ```js
 require('source-map-support').install({
@@ -209,7 +209,30 @@ Error: this is a demo
     at startup (node.js:119:16)
     at node.js:901:3
 ```
-    
+
+There is also the option to use `-r source-map-support/register` with typescript, without the need add the `require('source-map-support').install()` in the code base:
+
+```
+$ npm install source-map-support typescript
+$ node_modules/typescript/bin/tsc  -sourcemap demo.ts
+$ node -r source-map-support/register demo.js
+
+demo.ts:5
+  bar() { throw new Error('this is a demo'); }
+                ^
+Error: this is a demo
+    at Foo.bar (demo.ts:5:17)
+    at new Foo (demo.ts:4:24)
+    at Object.<anonymous> (demo.ts:7:1)
+    at Module._compile (module.js:456:26)
+    at Object.Module._extensions..js (module.js:474:10)
+    at Module.load (module.js:356:32)
+    at Function.Module._load (module.js:312:12)
+    at Function.Module.runMain (module.js:497:10)
+    at startup (node.js:119:16)
+    at node.js:901:3
+```
+
 #### CoffeeScript Demo
 
 demo.coffee:
@@ -225,8 +248,8 @@ foo()
 Compile and run the file using the CoffeeScript compiler from the terminal:
 
 ```sh
-$ npm install source-map-support coffee-script
-$ node_modules/coffee-script/bin/coffee --map --compile demo.coffee
+$ npm install source-map-support coffeescript
+$ node_modules/.bin/coffee --map --compile demo.coffee
 $ node demo.js
 
 demo.coffee:3
diff --git a/browser-source-map-support.js b/browser-source-map-support.js
index afa56e3..273e33d 100644
--- a/browser-source-map-support.js
+++ b/browser-source-map-support.js
@@ -17,15 +17,15 @@ v,m){N=p("./source-map-support")},{"./source-map-support":20}],2:[function(p,v,m
 ""===a)a="utf8";if(!b.isEncoding(a))throw new TypeError('"encoding" must be a valid string encoding');return k?b.from(h,a):new b(h,a)}return k?b.from(h):new b(h)}}).call(this,p("buffer").Buffer)},{buffer:5}],5:[function(p,v,m){function b(e,g,y){if(!(this instanceof b))return new b(e,g,y);var a=typeof e;if("base64"===g&&"string"===a)for(e=e.trim?e.trim():e.replace(/^\s+|\s+$/g,"");0!==e.length%4;)e+="=";if("number"===a)var c=I(e);else if("string"===a)c=b.byteLength(e,g);else if("object"===a)c=I(e.length);
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@@ -47,11 +47,11 @@ n=0>f||0===f&&0>1/f?1:0;f=Math.abs(f);isNaN(f)||Infinity===f?(f=isNaN(f)?1:0,h=r
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+return}}return a.apply(this,arguments)}}var n=p("source-map").SourceMapConsumer,x=p("path");try{var B=p("fs");B.existsSync&&B.readFileSync||(B=null)}catch(e){}var I=p("buffer-from"),M=!1,K=!1,L=!1,J="auto",C={},F={},H=/^data:application\/json[^,]+base64,/,A=[],D=[],q=k(A);A.push(function(a){a=a.trim();/^file:/.test(a)&&(a=a.replace(/file:\/\/\/(\w:)?/,function(a,b){return b?"":"/"}));if(a in C)return C[a];var b="";try{if(B)B.existsSync(a)&&(b=B.readFileSync(a,"utf8"));else{var c=new XMLHttpRequest;
+c.open("GET",a,!1);c.send(null);4===c.readyState&&200===c.status&&(b=c.responseText)}}catch(P){}return C[a]=b});var E=k(D);D.push(function(a){a:{if(f())try{var b=new XMLHttpRequest;b.open("GET",a,!1);b.send(null);var c=b.getResponseHeader("SourceMap")||b.getResponseHeader("X-SourceMap");if(c){var d=c;break a}}catch(R){}d=q(a);b=/(?:\/\/[@#][ \t]+sourceMappingURL=([^\s'"]+?)[ \t]*$)|(?:\/\*[@#][ \t]+sourceMappingURL=([^\*]+?)[ \t]*(?:\*\/)[ \t]*$)/mg;for(var e;c=b.exec(d);)e=c;d=e?e[1]:null}if(!d)return null;
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+a.retrieveSourceMap&&(a.overrideRetrieveSourceMap&&(D.length=0),D.unshift(a.retrieveSourceMap));if(a.hookRequire&&!f()){try{var d=p("module")}catch(P){}var e=d.prototype._compile;e.__sourceMapSupport||(d.prototype._compile=function(a,b){C[b]=a;F[b]=void 0;return e.call(this,a,b)},d.prototype._compile.__sourceMapSupport=!0)}L||(L="emptyCacheBetweenOperations"in a?a.emptyCacheBetweenOperations:!1);M||(M=!0,Error.prepareStackTrace=t);!K&&("handleUncaughtExceptions"in a?a.handleUncaughtExceptions:1)&&
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diff --git a/browser-test/script.js b/browser-test/script.js
index e16d414..5f57bd9 100644
--- a/browser-test/script.js
+++ b/browser-test/script.js
@@ -1,4 +1,4 @@
-// Generated by CoffeeScript 1.7.1
+// Generated by CoffeeScript 1.12.7
 (function() {
   var e, foo;
 
@@ -10,8 +10,8 @@
 
   try {
     foo();
-  } catch (_error) {
-    e = _error;
+  } catch (error) {
+    e = error;
     if (/\bscript\.coffee\b/.test(e.stack)) {
       document.body.appendChild(document.createTextNode('Test passed'));
     } else {
@@ -22,4 +22,4 @@
 
 }).call(this);
 
-//# sourceMappingURL=script.map
+//# sourceMappingURL=script.js.map
diff --git a/browser-test/script.js.map b/browser-test/script.js.map
new file mode 100644
index 0000000..64ad66a
--- /dev/null
+++ b/browser-test/script.js.map
@@ -0,0 +1,10 @@
+{
+  "version": 3,
+  "file": "script.js",
+  "sourceRoot": "..",
+  "sources": [
+    "browser-test/script.coffee"
+  ],
+  "names": [],
+  "mappings": ";AAAA;AAAA,MAAA;;EAAA,gBAAgB,CAAC,OAAjB,CAAA;;EAEA,GAAA,GAAM,SAAA;AAAG,UAAM,IAAI,KAAJ,CAAU,KAAV;EAAT;;AAEN;IACE,GAAA,CAAA,EADF;GAAA,aAAA;IAEM;IACJ,IAAG,oBAAoB,CAAC,IAArB,CAA0B,CAAC,CAAC,KAA5B,CAAH;MACE,QAAQ,CAAC,IAAI,CAAC,WAAd,CAA0B,QAAQ,CAAC,cAAT,CAAwB,aAAxB,CAA1B,EADF;KAAA,MAAA;MAGE,QAAQ,CAAC,IAAI,CAAC,WAAd,CAA0B,QAAQ,CAAC,cAAT,CAAwB,aAAxB,CAA1B;MACA,OAAO,CAAC,GAAR,CAAY,CAAC,CAAC,KAAd,EAJF;KAHF;;AAJA"
+}
\ No newline at end of file
diff --git a/browser-test/script.map b/browser-test/script.map
deleted file mode 100644
index 127a2b6..0000000
--- a/browser-test/script.map
+++ /dev/null
@@ -1,10 +0,0 @@
-{
-  "version": 3,
-  "file": "script.js",
-  "sourceRoot": "..",
-  "sources": [
-    "browser-test/script.coffee"
-  ],
-  "names": [],
-  "mappings": ";AAAA;AAAA,MAAA,MAAA;;AAAA,EAAA,gBAAgB,CAAC,OAAjB,CAAA,CAAA,CAAA;;AAAA,EAEA,GAAA,GAAM,SAAA,GAAA;AAAG,UAAU,IAAA,KAAA,CAAM,KAAN,CAAV,CAAH;EAAA,CAFN,CAAA;;AAIA;AACE,IAAA,GAAA,CAAA,CAAA,CADF;GAAA,cAAA;AAGE,IADI,UACJ,CAAA;AAAA,IAAA,IAAG,oBAAoB,CAAC,IAArB,CAA0B,CAAC,CAAC,KAA5B,CAAH;AACE,MAAA,QAAQ,CAAC,IAAI,CAAC,WAAd,CAA0B,QAAQ,CAAC,cAAT,CAAwB,aAAxB,CAA1B,CAAA,CADF;KAAA,MAAA;AAGE,MAAA,QAAQ,CAAC,IAAI,CAAC,WAAd,CAA0B,QAAQ,CAAC,cAAT,CAAwB,aAAxB,CAA1B,CAAA,CAAA;AAAA,MACA,OAAO,CAAC,GAAR,CAAY,CAAC,CAAC,KAAd,CADA,CAHF;KAHF;GAJA;AAAA"
-}
\ No newline at end of file
diff --git a/package-lock.json b/package-lock.json
index 5913eef..3115682 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "source-map-support",
-  "version": "0.5.9",
+  "version": "0.5.10",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
@@ -17,7 +17,7 @@
       "dev": true,
       "requires": {
         "jsonparse": "0.0.5",
-        "through": "2.3.8"
+        "through": ">=2.2.7 <3"
       }
     },
     "acorn": {
@@ -32,9 +32,9 @@
       "integrity": "sha1-DNkKVhCT810KmSVsIrcGlDP60Rc=",
       "dev": true,
       "requires": {
-        "kind-of": "3.2.2",
-        "longest": "1.0.1",
-        "repeat-string": "1.6.1"
+        "kind-of": "^3.0.2",
+        "longest": "^1.0.1",
+        "repeat-string": "^1.5.2"
       }
     },
     "amdefine": {
@@ -49,8 +49,8 @@
       "integrity": "sha512-0XNayC8lTHQ2OI8aljNCN3sSx6hsr/1+rlcDAotXJR7C1oZZHCNsfpbKwMjRA3Uqb5tF1Rae2oloTr4xpq+WjA==",
       "dev": true,
       "requires": {
-        "micromatch": "2.3.11",
-        "normalize-path": "2.1.1"
+        "micromatch": "^2.1.5",
+        "normalize-path": "^2.0.0"
       }
     },
     "arr-diff": {
@@ -59,7 +59,7 @@
       "integrity": "sha1-jzuCf5Vai9ZpaX5KQlasPOrjVs8=",
       "dev": true,
       "requires": {
-        "arr-flatten": "1.1.0"
+        "arr-flatten": "^1.0.1"
       }
     },
     "arr-flatten": {
@@ -68,6 +68,12 @@
       "integrity": "sha512-L3hKV5R/p5o81R7O02IGnwpDmkp6E982XhtbuwSe3O4qOtMMMtodicASA1Cny2U+aCXcNpml+m4dPsvsJ3jatg==",
       "dev": true
     },
+    "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-unique": {
       "version": "0.2.1",
       "resolved": "https://registry.npmjs.org/array-unique/-/array-unique-0.2.1.tgz",
@@ -83,13 +89,19 @@
         "util": "0.10.3"
       }
     },
+    "assign-symbols": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/assign-symbols/-/assign-symbols-1.0.0.tgz",
+      "integrity": "sha1-WWZ/QfrdTyDMvCu5a41Pf3jsA2c=",
+      "dev": true
+    },
     "astw": {
       "version": "2.2.0",
       "resolved": "https://registry.npmjs.org/astw/-/astw-2.2.0.tgz",
       "integrity": "sha1-e9QXhNMkk5h66yOba04cV6hzuRc=",
       "dev": true,
       "requires": {
-        "acorn": "4.0.13"
+        "acorn": "^4.0.3"
       }
     },
     "async": {
@@ -104,12 +116,79 @@
       "integrity": "sha1-GdOGodntxufByF04iu28xW0zYC0=",
       "dev": true
     },
-    "balanced-match": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/balanced-match/-/balanced-match-1.0.0.tgz",
-      "integrity": "sha1-ibTRmasr7kneFk6gK4nORi1xt2c=",
+    "atob": {
+      "version": "2.1.2",
+      "resolved": "https://registry.npmjs.org/atob/-/atob-2.1.2.tgz",
+      "integrity": "sha512-Wm6ukoaOGJi/73p/cl2GvLjTI5JM1k/O14isD73YML8StrH/7/lRFgmg8nICZgD3bZZvjwCGxtMOD3wWNAu8cg==",
       "dev": true
     },
+    "base": {
+      "version": "0.11.2",
+      "resolved": "https://registry.npmjs.org/base/-/base-0.11.2.tgz",
+      "integrity": "sha512-5T6P4xPgpp0YDFvSWwEZ4NoE3aM4QBQXDzmVbraCkFj8zHM+mba8SyqB5DbZWyR7mYHo6Y7BdQo3MoA4m0TeQg==",
+      "dev": true,
+      "requires": {
+        "cache-base": "^1.0.1",
+        "class-utils": "^0.3.5",
+        "component-emitter": "^1.2.1",
+        "define-property": "^1.0.0",
+        "isobject": "^3.0.1",
+        "mixin-deep": "^1.2.0",
+        "pascalcase": "^0.1.1"
+      },
+      "dependencies": {
+        "define-property": {
+          "version": "1.0.0",
+          "resolved": "https://registry.npmjs.org/define-property/-/define-property-1.0.0.tgz",
+          "integrity": "sha1-dp66rz9KY6rTr56NMEybvnm/sOY=",
+          "dev": true,
+          "requires": {
+            "is-descriptor": "^1.0.0"
+          }
+        },
+        "is-accessor-descriptor": {
+          "version": "1.0.0",
+          "resolved": "https://registry.npmjs.org/is-accessor-descriptor/-/is-accessor-descriptor-1.0.0.tgz",
+          "integrity": "sha512-m5hnHTkcVsPfqx3AKlyttIPb7J+XykHvJP2B9bZDjlhLIoEq4XoK64Vg7boZlVWYK6LUY94dYPEE7Lh0ZkZKcQ==",
+          "dev": true,
+          "requires": {
+            "kind-of": "^6.0.0"
+          }
+        },
+        "is-data-descriptor": {
+          "version": "1.0.0",
+          "resolved": "https://registry.npmjs.org/is-data-descriptor/-/is-data-descriptor-1.0.0.tgz",
+          "integrity": "sha512-jbRXy1FmtAoCjQkVmIVYwuuqDFUbaOeDjmed1tOGPrsMhtJA4rD9tkgA0F1qJ3gRFRXcHYVkdeaP50Q5rE/jLQ==",
+          "dev": true,
+          "requires": {
+            "kind-of": "^6.0.0"
+          }
+        },
+        "is-descriptor": {
+          "version": "1.0.2",
+          "resolved": "https://registry.npmjs.org/is-descriptor/-/is-descriptor-1.0.2.tgz",
+          "integrity": "sha512-2eis5WqQGV7peooDyLmNEPUrps9+SXX5c9pL3xEB+4e9HnGuDa7mB7kHxHw4CbqS9k1T2hOH3miL8n8WtiYVtg==",
+          "dev": true,
+          "requires": {
+            "is-accessor-descriptor": "^1.0.0",
+            "is-data-descriptor": "^1.0.0",
+            "kind-of": "^6.0.2"
+          }
+        },
+        "isobject": {
+          "version": "3.0.1",
+          "resolved": "https://registry.npmjs.org/isobject/-/isobject-3.0.1.tgz",
+          "integrity": "sha1-TkMekrEalzFjaqH5yNHMvP2reN8=",
+          "dev": true
+        },
+        "kind-of": {
+          "version": "6.0.2",
+          "resolved": "https://registry.npmjs.org/kind-of/-/kind-of-6.0.2.tgz",
+          "integrity": "sha512-s5kLOcnH0XqDO+FvuaLX8DDjZ18CGFk7VygH40QoKPUQhW4e2rvM0rwUq0t8IQDOwYSeLK01U90OjzBTme2QqA==",
+          "dev": true
+        }
+      }
+    },
     "base64-js": {
       "version": "0.0.8",
       "resolved": "https://registry.npmjs.org/base64-js/-/base64-js-0.0.8.tgz",
@@ -117,36 +196,26 @@
       "dev": true
     },
     "big.js": {
-      "version": "3.1.3",
-      "resolved": "https://registry.npmjs.org/big.js/-/big.js-3.1.3.tgz",
-      "integrity": "sha1-TK2iGTZS6zyp7I5VyQFWacmAaXg=",
+      "version": "3.2.0",
+      "resolved": "https://registry.npmjs.org/big.js/-/big.js-3.2.0.tgz",
+      "integrity": "sha512-+hN/Zh2D08Mx65pZ/4g5bsmNiZUuChDiQfTUQ7qJr4/kuopCr88xZsAXv6mBoZEsUI4OuGHlX59qE94K2mMW8Q==",
       "dev": true
     },
     "binary-extensions": {
-      "version": "1.10.0",
-      "resolved": "https://registry.npmjs.org/binary-extensions/-/binary-extensions-1.10.0.tgz",
-      "integrity": "sha1-muuabF6IY4qtFx4Wf1kAq+JINdA=",
+      "version": "1.12.0",
+      "resolved": "https://registry.npmjs.org/binary-extensions/-/binary-extensions-1.12.0.tgz",
+      "integrity": "sha512-DYWGk01lDcxeS/K9IHPGWfT8PsJmbXRtRd2Sx72Tnb8pcYZQFF1oSDb8hJtS1vhp212q1Rzi5dUf9+nq0o9UIg==",
       "dev": true
     },
-    "brace-expansion": {
-      "version": "1.1.8",
-      "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-1.1.8.tgz",
-      "integrity": "sha1-wHshHHyVLsH479Uad+8NHTmQopI=",
-      "dev": true,
-      "requires": {
-        "balanced-match": "1.0.0",
-        "concat-map": "0.0.1"
-      }
-    },
     "braces": {
       "version": "1.8.5",
       "resolved": "https://registry.npmjs.org/braces/-/braces-1.8.5.tgz",
       "integrity": "sha1-uneWLhLf+WnWt2cR6RS3N4V79qc=",
       "dev": true,
       "requires": {
-        "expand-range": "1.8.2",
-        "preserve": "0.2.0",
-        "repeat-element": "1.1.2"
+        "expand-range": "^1.8.1",
+        "preserve": "^0.2.0",
+        "repeat-element": "^1.1.2"
       }
     },
     "browser-pack": {
@@ -155,9 +224,9 @@
       "integrity": "sha1-XRxSf1bFgmd0EcTbKhKGSP9r8VA=",
       "dev": true,
       "requires": {
-        "JSONStream": "0.6.4",
-        "combine-source-map": "0.3.0",
-        "through": "2.3.8"
+        "JSONStream": "~0.6.4",
+        "combine-source-map": "~0.3.0",
+        "through": "~2.3.4"
       },
       "dependencies": {
         "JSONStream": {
@@ -167,7 +236,7 @@
           "dev": true,
           "requires": {
             "jsonparse": "0.0.5",
-            "through": "2.2.7"
+            "through": "~2.2.7"
           },
           "dependencies": {
             "through": {
@@ -190,56 +259,58 @@
       }
     },
     "browserify": {
-      "version": "3.44.2",
-      "resolved": "https://registry.npmjs.org/browserify/-/browserify-3.44.2.tgz",
-      "integrity": "sha1-/6J4jQboBz/9c02Uw64nLKPdYwo=",
-      "dev": true,
-      "requires": {
-        "JSONStream": "0.7.4",
-        "assert": "1.1.2",
-        "browser-pack": "2.0.1",
-        "browser-resolve": "1.2.4",
-        "browserify-zlib": "0.1.4",
-        "buffer": "2.1.13",
-        "builtins": "0.0.7",
+      "version": "3.46.1",
+      "resolved": "https://registry.npmjs.org/browserify/-/browserify-3.46.1.tgz",
+      "integrity": "sha1-LC5Kfy9AgXjnjCI7W1ezfCGFrY4=",
+      "dev": true,
+      "requires": {
+        "JSONStream": "~0.7.1",
+        "assert": "~1.1.0",
+        "browser-pack": "~2.0.0",
+        "browser-resolve": "~1.2.1",
+        "browserify-zlib": "~0.1.2",
+        "buffer": "~2.1.4",
+        "builtins": "~0.0.3",
         "commondir": "0.0.1",
-        "concat-stream": "1.4.10",
-        "console-browserify": "1.0.3",
-        "constants-browserify": "0.0.1",
-        "crypto-browserify": "1.0.9",
-        "deep-equal": "0.1.2",
-        "defined": "0.0.0",
-        "deps-sort": "0.1.2",
-        "derequire": "0.8.0",
-        "domain-browser": "1.1.7",
-        "duplexer": "0.1.1",
-        "events": "1.0.2",
-        "glob": "3.2.11",
-        "http-browserify": "1.3.2",
-        "https-browserify": "0.0.1",
-        "inherits": "2.0.3",
-        "insert-module-globals": "5.0.1",
-        "module-deps": "1.10.0",
-        "os-browserify": "0.1.2",
-        "parents": "0.0.3",
-        "path-browserify": "0.0.0",
-        "punycode": "1.2.4",
+        "concat-stream": "~1.4.1",
+        "console-browserify": "~1.0.1",
+        "constants-browserify": "~0.0.1",
+        "crypto-browserify": "~1.0.9",
+        "deep-equal": "~0.1.0",
+        "defined": "~0.0.0",
+        "deps-sort": "~0.1.1",
+        "derequire": "~0.8.0",
+        "domain-browser": "~1.1.0",
+        "duplexer": "~0.1.1",
+        "events": "~1.0.0",
+        "glob": "~3.2.8",
+        "http-browserify": "~1.3.1",
+        "https-browserify": "~0.0.0",
+        "inherits": "~2.0.1",
+        "insert-module-globals": "~6.0.0",
+        "module-deps": "~2.0.0",
+        "os-browserify": "~0.1.1",
+        "parents": "~0.0.1",
+        "path-browserify": "~0.0.0",
+        "process": "^0.7.0",
+        "punycode": "~1.2.3",
         "querystring-es3": "0.2.0",
-        "resolve": "0.6.3",
+        "resolve": "~0.6.1",
         "shallow-copy": "0.0.1",
-        "shell-quote": "0.0.1",
-        "stream-browserify": "0.1.3",
-        "stream-combiner": "0.0.4",
-        "string_decoder": "0.0.1",
+        "shell-quote": "~0.0.1",
+        "stream-browserify": "~0.1.0",
+        "stream-combiner": "~0.0.2",
+        "string_decoder": "~0.0.0",
         "subarg": "0.0.1",
-        "syntax-error": "1.1.6",
-        "through2": "0.4.2",
-        "timers-browserify": "1.0.3",
-        "tty-browserify": "0.0.0",
-        "umd": "2.0.0",
-        "url": "0.10.3",
-        "util": "0.10.3",
-        "vm-browserify": "0.0.4"
+        "syntax-error": "~1.1.0",
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+              "resolved": "https://registry.npmjs.org/isobject/-/isobject-2.1.0.tgz",
+              "integrity": "sha1-8GVWEJaj8dou9GJy+BXIQNh+DIk=",
+              "dev": true,
+              "requires": {
+                "isarray": "1.0.0"
+              }
+            }
+          }
+        },
+        "has-values": {
+          "version": "0.1.4",
+          "resolved": "https://registry.npmjs.org/has-values/-/has-values-0.1.4.tgz",
+          "integrity": "sha1-bWHeldkd/Km5oCCJrThL/49it3E=",
+          "dev": true
+        },
+        "isarray": {
+          "version": "1.0.0",
+          "resolved": "https://registry.npmjs.org/isarray/-/isarray-1.0.0.tgz",
+          "integrity": "sha1-u5NdSFgsuhaMBoNJV6VKPgcSTxE=",
+          "dev": true
+        },
+        "isobject": {
+          "version": "3.0.1",
+          "resolved": "https://registry.npmjs.org/isobject/-/isobject-3.0.1.tgz",
+          "integrity": "sha1-TkMekrEalzFjaqH5yNHMvP2reN8=",
+          "dev": true
+        }
       }
     },
+    "urix": {
+      "version": "0.1.0",
+      "resolved": "https://registry.npmjs.org/urix/-/urix-0.1.0.tgz",
+      "integrity": "sha1-2pN/emLiH+wf0Y1Js1wpNQZ6bHI=",
+      "dev": true
+    },
     "url": {
       "version": "0.10.3",
       "resolved": "https://registry.npmjs.org/url/-/url-0.10.3.tgz",
@@ -3187,6 +3901,12 @@
       "integrity": "sha1-HbSK1CLTQCRpqH99l73r/k+x48g=",
       "dev": true
     },
+    "use": {
+      "version": "3.1.1",
+      "resolved": "https://registry.npmjs.org/use/-/use-3.1.1.tgz",
+      "integrity": "sha512-cwESVXlO3url9YWlFW/TA9cshCEhtu7IKJ/p5soJ/gGpj7vbvFrAY/eIioQ6Dw23KjZhYgiIo8HOs1nQ2vr/oQ==",
+      "dev": true
+    },
     "util": {
       "version": "0.10.3",
       "resolved": "https://registry.npmjs.org/util/-/util-0.10.3.tgz",
@@ -3225,9 +3945,9 @@
       "integrity": "sha1-Yuqkq15bo1/fwBgnVibjwPXj+ws=",
       "dev": true,
       "requires": {
-        "async": "0.9.2",
-        "chokidar": "1.7.0",
-        "graceful-fs": "4.1.11"
+        "async": "^0.9.0",
+        "chokidar": "^1.0.0",
+        "graceful-fs": "^4.1.2"
       },
       "dependencies": {
         "async": {
@@ -3237,9 +3957,9 @@
           "dev": true
         },
         "graceful-fs": {
-          "version": "4.1.11",
-          "resolved": "https://registry.npmjs.org/graceful-fs/-/graceful-fs-4.1.11.tgz",
-          "integrity": "sha1-Dovf5NHduIVNZOBOp8AOKgJuVlg=",
+          "version": "4.1.15",
+          "resolved": "https://registry.npmjs.org/graceful-fs/-/graceful-fs-4.1.15.tgz",
+          "integrity": "sha512-6uHUhOPEBgQ24HM+r6b/QwWfZq+yiFcipKFrOFiBEnWdy5sdzYoi+pJeQaPI5qOLRFqWmAXUPQNsielzdLoecA==",
           "dev": true
         }
       }
@@ -3250,21 +3970,21 @@
       "integrity": "sha1-T/MfU9sDM55VFkqdRo7gMklo/pg=",
       "dev": true,
       "requires": {
-        "acorn": "3.3.0",
-        "async": "1.5.2",
-        "clone": "1.0.2",
-        "enhanced-resolve": "0.9.1",
-        "interpret": "0.6.6",
-        "loader-utils": "0.2.17",
-        "memory-fs": "0.3.0",
-        "mkdirp": "0.5.1",
-        "node-libs-browser": "0.7.0",
-        "optimist": "0.6.1",
-        "supports-color": "3.2.3",
-        "tapable": "0.1.10",
-        "uglify-js": "2.7.5",
-        "watchpack": "0.2.9",
-        "webpack-core": "0.6.9"
+        "acorn": "^3.0.0",
+        "async": "^1.3.0",
+        "clone": "^1.0.2",
+        "enhanced-resolve": "~0.9.0",
+        "interpret": "^0.6.4",
+        "loader-utils": "^0.2.11",
+        "memory-fs": "~0.3.0",
+        "mkdirp": "~0.5.0",
+        "node-libs-browser": "^0.7.0",
+        "optimist": "~0.6.0",
+        "supports-color": "^3.1.0",
+        "tapable": "~0.1.8",
+        "uglify-js": "~2.7.3",
+        "watchpack": "^0.2.1",
+        "webpack-core": "~0.6.9"
       },
       "dependencies": {
         "acorn": {
@@ -3279,41 +3999,32 @@
           "integrity": "sha1-7GphrlZIDAw8skHJVhjiCJL5Zyo=",
           "dev": true
         },
-        "minimist": {
-          "version": "0.0.8",
-          "resolved": "https://registry.npmjs.org/minimist/-/minimist-0.0.8.tgz",
-          "integrity": "sha1-hX/Kv8M5fSYluCKCYuhqp6ARsF0=",
-          "dev": true
-        },
-        "mkdirp": {
-          "version": "0.5.1",
-          "resolved": "https://registry.npmjs.org/mkdirp/-/mkdirp-0.5.1.tgz",
-          "integrity": "sha1-MAV0OOrGz3+MR2fzhkjWaX11yQM=",
-          "dev": true,
-          "requires": {
-            "minimist": "0.0.8"
-          }
-        },
         "optimist": {
           "version": "0.6.1",
           "resolved": "https://registry.npmjs.org/optimist/-/optimist-0.6.1.tgz",
           "integrity": "sha1-2j6nRob6IaGaERwybpDrFaAZZoY=",
           "dev": true,
           "requires": {
-            "minimist": "0.0.8",
-            "wordwrap": "0.0.3"
+            "minimist": "~0.0.1",
+            "wordwrap": "~0.0.2"
           }
         },
+        "source-map": {
+          "version": "0.5.7",
+          "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.5.7.tgz",
+          "integrity": "sha1-igOdLRAh0i0eoUyA2OpGi6LvP8w=",
+          "dev": true
+        },
         "uglify-js": {
           "version": "2.7.5",
           "resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-2.7.5.tgz",
           "integrity": "sha1-RhLAx7qu4rp8SH3kkErhIgefLKg=",
           "dev": true,
           "requires": {
-            "async": "0.2.10",
-            "source-map": "0.5.7",
-            "uglify-to-browserify": "1.0.2",
-            "yargs": "3.10.0"
+            "async": "~0.2.6",
+            "source-map": "~0.5.1",
+            "uglify-to-browserify": "~1.0.0",
+            "yargs": "~3.10.0"
           },
           "dependencies": {
             "async": {
@@ -3321,12 +4032,6 @@
               "resolved": "https://registry.npmjs.org/async/-/async-0.2.10.tgz",
               "integrity": "sha1-trvgsGdLnXGXCMo43owjfLUmw9E=",
               "dev": true
-            },
-            "source-map": {
-              "version": "0.5.7",
-              "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.5.7.tgz",
-              "integrity": "sha1-igOdLRAh0i0eoUyA2OpGi6LvP8w=",
-              "dev": true
             }
           }
         },
@@ -3336,9 +4041,9 @@
           "integrity": "sha1-9+572FfdfB0tOMDnTvvWgdFDH9E=",
           "dev": true,
           "requires": {
-            "camelcase": "1.2.1",
-            "cliui": "2.1.0",
-            "decamelize": "1.2.0",
+            "camelcase": "^1.0.2",
+            "cliui": "^2.1.0",
+            "decamelize": "^1.0.0",
             "window-size": "0.1.0"
           }
         }
@@ -3350,8 +4055,8 @@
       "integrity": "sha1-/FcViMhVjad76e+23r3Fo7FyvcI=",
       "dev": true,
       "requires": {
-        "source-list-map": "0.1.8",
-        "source-map": "0.4.4"
+        "source-list-map": "~0.1.7",
+        "source-map": "~0.4.1"
       },
       "dependencies": {
         "source-map": {
@@ -3360,7 +4065,7 @@
           "integrity": "sha1-66T12pwNyZneaAMti092FzZSA2s=",
           "dev": true,
           "requires": {
-            "amdefine": "1.0.1"
+            "amdefine": ">=0.0.4"
           }
         }
       }
@@ -3378,13 +4083,10 @@
       "dev": true
     },
     "xtend": {
-      "version": "2.1.2",
-      "resolved": "https://registry.npmjs.org/xtend/-/xtend-2.1.2.tgz",
-      "integrity": "sha1-bv7MKk2tjmlixJAbM3znuoe10os=",
-      "dev": true,
-      "requires": {
-        "object-keys": "0.4.0"
-      }
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/xtend/-/xtend-3.0.0.tgz",
+      "integrity": "sha1-XM50B7r2Qsunvs2laBEcST9ZZlo=",
+      "dev": true
     },
     "yargs": {
       "version": "3.5.4",
@@ -3392,8 +4094,8 @@
       "integrity": "sha1-2K/49mXpTDS9JZvevRv68N3TU2E=",
       "dev": true,
       "requires": {
-        "camelcase": "1.2.1",
-        "decamelize": "1.2.0",
+        "camelcase": "^1.0.2",
+        "decamelize": "^1.0.0",
         "window-size": "0.1.0",
         "wordwrap": "0.0.2"
       },
diff --git a/package.json b/package.json
index 052756d..10f466d 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "source-map-support",
   "description": "Fixes stack traces for files with source maps",
-  "version": "0.5.9",
+  "version": "0.5.10",
   "main": "./source-map-support.js",
   "scripts": {
     "build": "node build.js",
@@ -14,11 +14,11 @@
     "source-map": "^0.6.0"
   },
   "devDependencies": {
-    "browserify": "3.44.2",
-    "coffee-script": "1.7.1",
+    "browserify": "^3.46.1",
+    "coffeescript": "^1.12.7",
     "http-server": "^0.8.5",
-    "mocha": "1.18.2",
-    "webpack": "^1.13.3"
+    "mocha": "^1.21.5",
+    "webpack": "^1.15.0"
   },
   "repository": {
     "type": "git",
diff --git a/source-map-support.js b/source-map-support.js
index 06ac0f9..112e830 100644
--- a/source-map-support.js
+++ b/source-map-support.js
@@ -210,7 +210,7 @@ function mapSourcePosition(position) {
   }
 
   // Resolve the source URL relative to the URL of the source map
-  if (sourceMap && sourceMap.map) {
+  if (sourceMap && sourceMap.map && typeof sourceMap.map.originalPositionFor === 'function') {
     var originalPosition = sourceMap.map.originalPositionFor(position);
 
     // Only return the original position if a matching line was found. If no