Merge pull request phaserjs#2044 from rblopes/dont-prefix-data-urls

Prevent 'data:' URLs from being prefixed

Author: photonstorm

src/loader/Loader.js

@@ -2028,7 +2028,7 @@ Phaser.Loader.prototype = {
             return false;
         }
 
-        if (url.substr(0, 4) === 'http' || url.substr(0, 2) === '//')
+        if (url.match(/^(?:blob:|data:|http:\/\/|https:\/\/|\/\/)/))
         {
             return url;
         }