Fixed urls with query strings.

In a previous change, urls with query strings were broken such that
if one contained a /, it caused the demo page to fail to load.
Therefore, legacy custom URLs from before we added URL fragments which
contain asset or license URIs stopped working.
This change accounts for that.

Fixes: 71509895

Change-Id: I9e631a83fc7a551e841419dd4bec2885a2fd0a07

demo/load.js

@@ -27,8 +27,8 @@
  * mode during development.
  */
 (function() {  // anonymous namespace
-  // The URL of the page itself, without URL fragments.
-  var pageUrl = location.href.split('#')[0];
+  // The URL of the page itself, without URL fragments or search strings.
+  var pageUrl = location.href.split('#')[0].split('?')[0];
   // The URL of the page, up to and including the final '/'.
   var baseUrl = pageUrl.split('/').slice(0, -1).join('/') + '/';