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chromium/third_party/blink/web_tests/http/tests/navigation/fallback-anchor-reload.html 

<html>
<head>
<script type="text/javascript">
function startTest()
{
    testRunner.dumpAsText();
    location.hash = 'anchor';
    testRunner.queueReload();
}
</script>
</head>
<body onload="startTest();">

<h2 id="anchor"></h2>

<object data="resources/error404.pl">Fallback content</object>
</body>
</html>