Support IE

No location.origin, so have to create it manually

Author: cletusw

hotModuleReplacement.js

@@ -1,12 +1,13 @@
 module.exports = function(compilationHash, publicPath, outputFilename) {
   if (document) {
+    var origin = document.location.protocol + '//' + document.location.hostname + (document.location.port ? ':' + document.location.port: '');
     var styleSheets = document.getElementsByTagName('link');
     for (var i = 0; i < styleSheets.length; i++) {
       if (styleSheets[i].href) {
         var hrefUrl = styleSheets[i].href.split('?');
         var href = hrefUrl[0];
         var hash = hrefUrl[1];
-        if (hash !== compilationHash && href === document.location.origin + publicPath + outputFilename) {
+        if (hash !== compilationHash && href === origin + publicPath + outputFilename) {
           var url = href + '?' + compilationHash;
           styleSheets[i].href = url;
           console.log('[HMR]', 'Reload css: ', url);