chrome/test/data/prerender/prerender_deferred_image.html

   1 <html>
   2 <!--
   3 This test checks to make sure that redirects are deferred.
   4 -->
   5 <head>
   6 <title>Prerender deferred redirect</title>
   7 </head>
   8 <body>
   9 <script>
  10 var imageWasLoaded = false;
  11
  12 var prefix = "";
  13 if (location.hash == "#double_redirect")
  14   prefix = "/server-redirect?";
  15
  16 // Insert a deferred redirect into the document.
  17 var image = new Image();
  18 image.src = prefix + "/files/prerender/image-deferred.png";
  19 image.onload = function() {
  20   imageWasLoaded = true;
  21 };
  22 document.body.appendChild(image);
  23
  24 // Make sure the image was not loaded while prerendering.
  25 function DidPrerenderPass() {
  26   return !imageWasLoaded;
  27 }
  28
  29 // Make sure the image is loaded once the page is displayed.
  30 function DidDisplayPass() {
  31   return imageWasLoaded;
  32 }
  33
  34 // Wait for a sister image to load before calling DidPrerenderPass.
  35 // TODO(davidben): Wait on something more reasonable. This should
  36 // still pass reliably, but will only fail flakily on regression.
  37 var image2 = new Image();
  38 image2.src = prefix + "/files/prerender/image-redirect.png";
  39 image2.onload = function() {
  40   document.title = "READY";
  41 };
  42 document.body.appendChild(image2);
  43 </script>
  44 </body>
  45 </html>