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<!DOCTYPE HTML>
<html>
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=656954
-->
<head>
  <title>Test for Bug 656954</title>
  <script type="application/javascript" 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=656954">Mozilla Bug 656954</a>
<p id="display"></p>
<div id="content" style="display: none">
  
</div>
<pre id="test">
<script type="application/javascript">

/** Test for Bug 656954 **/

var e = document.createEvent("Event");
is(e.defaultPrevented, false,
   "After creating event defaultPrevented should be false");
e.initEvent("foo", true, true);
var el = document.createElement("div");
el.addEventListener("foo", 
  function(evt) {
    evt.preventDefault();
  });
el.dispatchEvent(e);
is(e.defaultPrevented, true, "preventDefault() should have been called!");

e = document.createEvent("Event");
e.initEvent("foo", true, false);
el.dispatchEvent(e);
is(e.defaultPrevented, false, "preventDefault() should not have any effect!");

</script>
</pre>
</body>
</html>