<!DOCTYPE HTML>
<html>
<head>
  <title>Tell the cycle collector about the audio contexts owned by nsGlobalWindow</title>
  <script src="/tests/SimpleTest/SimpleTest.js"></script>
  <script type="text/javascript" src="webaudio.js"></script>
  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
</head>
<body>
<pre id="test">
<script class="testbody" type="text/javascript">
  var iframe = document.createElementNS("http://www.w3.org/1999/xhtml", "iframe");
  document.body.appendChild(iframe);
  var frameWin = iframe.contentWindow;
  new frameWin.AudioContext();
  document.body.removeChild(iframe);
  expectException(() => new frameWin.AudioContext(),
                  DOMException.INVALID_STATE_ERR);

  // This test should not leak.
</script>
</pre>
</body>
</html>
