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https://bugzilla.mozilla.org/show_bug.cgi?id=677638
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  <title>Test for Bug 677638 - sharedWorker</title>
  <script src="/tests/SimpleTest/SimpleTest.js"></script>
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<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=677638">Mozilla Bug 677638</a>
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<pre id="test">
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  <script type="application/javascript">

  var a = new SharedWorker('sharedWorker_messageChannel.js');
  a.port.onmessage = function(evt) {
    is(evt.ports.length, 1, "We received a port.");
    evt.ports[0].onmessage = function(e) {
      is(e.data, 42, "Message reiceved back!");
      SimpleTest.finish();
    }
    evt.ports[0].postMessage(42);
  }

  SimpleTest.waitForExplicitFinish();
  </script>
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