test_bug400204.html

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<!DOCTYPE HTML>

<html>

<!--

https://bugzilla.mozilla.org/show_bug.cgi?id=400204

-->

<head>

  <title>Test for Bug 400204</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=400204">Mozilla Bug 400204</a>

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

<iframe id="content" src="about:blank" style="display: none"></iframe>

<pre id="test">

<script class="testbody" type="text/javascript">

  var c = document.getElementById("content");

  var success = false;

  // try to access innerWidth

  try { success = (c.contentWindow.innerWidth == 0); } catch(ex) { success = false; }

  ok(success, "can't access hidden iframe innerWidth, or it's not 0");

  // try to access innerHeight

  success = false;

  try { success = (c.contentWindow.innerHeight == 0); } catch(ex) { success = false; }

  ok(success, "can't access hidden iframe innerHeight, or it's not 0");

  // Snag the canonical getter and setter

  var innerWidthGetter = Object.getOwnPropertyDescriptor(c.contentWindow, "innerWidth").get;

  var innerHeightGetter = Object.getOwnPropertyDescriptor(c.contentWindow, "innerHeight").get;

  // try to set innerWidth

  success = false;

  try { c.contentWindow.innerWidth = 100; success = true; } catch(ex) { success = false; }

  ok(success, "can't set hidden iframe innerWidth");

  // try to set innerHeight

  success = false;

  try { c.contentWindow.innerHeight = 100; success = true; } catch(ex) { success = false; }

  ok(success, "can't set hidden iframe innerHeight");

  // now try these again for good measure, and to ensure the values

  // haven't changed except via getting replaced

  // try to access innerWidth

  success = false;

  try { success = (c.contentWindow.innerWidth == 100); } catch(ex) { success = false; }

  ok(success, "can't access hidden iframe innerWidth, or it's not 100");

  success = false;

  try { success = (innerWidthGetter.call(c.contentWindow) == 0); } catch(ex) { success = false; }

  ok(success, "can't access hidden iframe innerWidth, or it's not 0");

  // try to access innerHeight

  success = false;

  try { success = (c.contentWindow.innerHeight == 100); } catch(ex) { success = false; }

  ok(success, "can't access hidden iframe innerHeight, or it's not 100");

  success = false;

  try { success = (innerHeightGetter.call(c.contentWindow) == 0); } catch(ex) { success = false; }

  ok(success, "can't access hidden iframe innerHeight, or it's not 0");

</script>

</pre>

</body>

</html>