gecko-dev/dom/events/test/test_bug812744.html

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HTML

<!DOCTYPE HTML>
<html>
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=812744
-->
<head>
<meta charset="utf-8">
<title>Test for Bug 812744</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=812744">Mozilla Bug 812744</a>
<p id="display"></p>
<div id="content" style="display: none">
<iframe id="f"></iframe>
</div>
<pre id="test">
<script type="application/javascript">
/** Test for Bug 812744 **/
SimpleTest.waitForExplicitFinish();
addLoadEvent(function() {
var f = $("f");
var el = f.contentDocument.documentElement;
f.onload = function() {
el.setAttribute("onmouseleave", "(void 0)");
is(el.onmouseleave, null, "Should not have a function here");
SimpleTest.finish();
};
f.src = "http://www.example.com/"
});
</script>
</pre>
</body>
</html>