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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>window.performance is read/write</title>
<link rel="author" title="Microsoft" href="http://www.microsoft.com/" />
<link rel="help" href="http://www.w3.org/TR/navigation-timing/#sec-window.performance-attribute"/>
<meta name="assert" content="The window.performance attribute provides a hosting area for performance related attributes. "/>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/common/performance-timeline-utils.js"></script>
<script src="resources/webperftestharness.js"></script>
</head>
<body>
<h1>Description</h1>
<p>This test validates that the window.performance object is read/write.</p>
<div id="log"></div>
<script>
test_namespace();
window.performance = 'foo';
test_equals(window.performance, 'foo', 'window.performance is read/write');
var performance = 'bar';
test_equals(performance, 'bar', 'var performance is read/write');
</script>
</body>
</html>
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