fix(systemjs-angular-loader): replace w/ version that works in IE

Author: wardbell

CHANGELOG.md

@@ -3,6 +3,10 @@ Upgraders: for a fresh start, consider running these commands
 * `git clean -xdf` 
 * `npm install`
 
+<a name="0.4.1"></a>
+# 0.4.1 (2017-03-24)
+* Replace systemjs-angular-loader with version that works for IE
+
 <a name="0.4.0"></a>
 # 0.4.0 (2017-03-24)
 * Update to Angular 4.0.0

src/systemjs-angular-loader.js

@@ -3,15 +3,17 @@ var stylesRegex = /styleUrls *:(\s*\[[^\]]*?\])/g;
 var stringRegex = /(['`"])((?:[^\\]\\\1|.)*?)\1/g;
 
 module.exports.translate = function(load){
-
-  var url = new URL(load.address);
+  var url = document.createElement('a');
+  url.href = load.address;
 
   var basePathParts = url.pathname.split('/');
 
   basePathParts.pop();
   var basePath = basePathParts.join('/');
 
-  var baseHref = new URL(this.baseURL).pathname;
+  var baseHref = document.createElement('a');
+  baseHref.href = this.baseURL;
+  baseHref = baseHref.pathname;
 
   basePath = basePath.replace(baseHref, '');
 
@@ -23,16 +25,16 @@ module.exports.translate = function(load){
         resolvedUrl = basePath + url.substr(1);
       }
 
-      return `templateUrl: '${resolvedUrl}'`;
+      return 'templateUrl: "' + resolvedUrl + '"';
     })
     .replace(stylesRegex, function(match, relativeUrls) {
       var urls = [];
 
       while ((match = stringRegex.exec(relativeUrls)) !== null) {
         if (match[2].startsWith('.')) {
-          urls.push(`'${basePath}${match[2].substr(1)}'`);
+          urls.push('"' + basePath + match[2].substr(1) + '"');
         } else {
-          urls.push(`'${match[2]}'`);
+          urls.push('"' + match[2] + '"');
         }
       }