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<html>
<head>
<title>Upgrade Insecure Requests: top-frame navigation inside iframe (upgrade expected)</title>
</head>
<body>
<!--
This is a bit of a hack. UPGRADE doesn't upgrade the port number, so we
specify this non-existent URL ('http' over https port). If UPGRADE doesn't
work, it won't load. The expected behavior is that the url is upgraded and
the page loads.
-->
<iframe
sandbox="allow-scripts allow-top-navigation"
></iframe>
</body>
</html>