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<!DOCTYPE HTML>
<html>
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=1178076
-->
<head>
  <meta charset="utf-8">
  <title>Test for Bug 1178076</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=1178076">Mozilla Bug 1178076</a>
<div id="content"></div>
<pre id="test">
</pre>
  <script type="application/javascript">

  function runTest() {
    onmessage = function(e) {
      is(e.ports.length, 1, "A port has been received!");
      var port = e.ports[0];
      ok(port instanceof MessagePort, "This is a port.");
      SimpleTest.finish();
    }

    // In this test we want to see if we leak a neutered port closing port1
    // and sending port2 to the same window. This operation doesn't involve IPC.
    var mc = new MessageChannel();
    mc.port1.close();
    postMessage(42, '*', [mc.port2]);
  }

  SimpleTest.waitForExplicitFinish();
  runTest();
  </script>
</body>
</html>