page_with_cross_origin_same_site_iframe.html

<!DOCTYPE html>
<head>
</head>
<body>
  This page contains a cross-origin but same-site iframe.
  <iframe name="frame0" src="/cross-site/b.x.com/title1.html"></iframe>
</body>
</html>

chromium/content/test/data/frame_tree/page_with_cross_origin_same_site_iframe.html