The Tor Browser / file revision

 /* This Source Code Form is subject to the terms of the Mozilla Public

  * License, v. 2.0. If a copy of the MPL was not distributed with this

  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

 function getExampleDotComURL(conformanceDirRelativePath) {

   var prefix = 'http://example.com/tests/content/canvas/test/webgl-conformance/';

   return prefix + conformanceDirRelativePath;

 }

 function setExampleDotComImage(imageElemID, imagePath, relPathToBase, onLoadCallback) {

   var img = document.getElementById(imageElemID);

   if (!img)

     throw 'Bad `imageElemID`: ' + imageElemID;

   if (onLoadCallback)

     img.onload = onLoadCallback;

   img.onerror = function() {

     console.log('Failed to load image from: ' + img.src);

     console.log('Loading same-domain backup image.');

     img.onerror = function() {

       console.log('Failed to load backup image from: ' + img.src);

       return;

     };

     img.src = relPathToBase + imagePath;

   };

   img.src = getExampleDotComURL(imagePath);

 }