test_bug497665.html

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<!DOCTYPE HTML>

<html>

<!--

https://bugzilla.mozilla.org/show_bug.cgi?id=497665

-->

<head>

  <title>Test for Bug 497665</title>

  <script src="/tests/SimpleTest/SimpleTest.js"></script>

  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>

</head>

<body>

<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=497665">Mozilla Bug 497665</a>

<p id="display"></p>

<pre id="test">

<script type="application/javascript">

var image1first, image2first, image1second, image2second, image1third, image2third;

SimpleTest.waitForExplicitFinish();

function checkFirst()

  var iframeelem = document.getElementById('test-iframe');

  var canvas = document.getElementById('canvas');

  var ctx = canvas.getContext('2d');

  var firstimg = iframeelem.contentDocument.getElementById('image1');

  var secondimg = iframeelem.contentDocument.getElementById('image2');

  ctx.drawImage(firstimg, 0, 0);

  image1first = canvas.toDataURL();

  ctx.drawImage(secondimg, 0, 0);

  image2first = canvas.toDataURL();

  ok(image1first == image2first, "We got different images, but shouldn't have.");

  iframeelem.onload = checkForceReload;

  iframeelem.contentWindow.location.reload(true);

function checkForceReload()

  var iframeelem = document.getElementById('test-iframe');

  var canvas = document.getElementById('canvas');

  var ctx = canvas.getContext('2d');

  var firstimg = iframeelem.contentDocument.getElementById('image1');

  var secondimg = iframeelem.contentDocument.getElementById('image2');

  ctx.drawImage(firstimg, 0, 0);

  image1second = canvas.toDataURL();

  ctx.drawImage(secondimg, 0, 0);

  image2second = canvas.toDataURL();

  ok(image1second == image2second, "We got different images after a force-reload, but shouldn't have.");

  // Sanity check that we actually reloaded.

  ok(image1first != image1second, "We got the same images after a force-reload.");

  iframeelem.onload = checkReload;

  iframeelem.contentWindow.location.reload(false);

function checkReload()

  var iframeelem = document.getElementById('test-iframe');

  var canvas = document.getElementById('canvas');

  var ctx = canvas.getContext('2d');

  var firstimg = iframeelem.contentDocument.getElementById('image1');

  var secondimg = iframeelem.contentDocument.getElementById('image2');

  ctx.drawImage(firstimg, 0, 0);

  image1third = canvas.toDataURL();

  ctx.drawImage(secondimg, 0, 0);

  image2third = canvas.toDataURL();

  ok(image1third == image2third, "We got different images after a reload, but shouldn't have.");

  SimpleTest.finish();

</script>

</pre>

<div id="content"> <!-- style="display: none" -->

<canvas id="canvas" width="100" height="100"> </canvas>

<iframe id="test-iframe" src="bug497665-iframe.html" onload="checkFirst()"></iframe>

</div>

</body>

</html>