chromium/third_party/blink/web_tests/fast/history/resources/history-subframe-with-name-container.html

<script>
// Disable the page cache when running inside of Safari
onunload = function() {};
</script>
<iframe src="history-subframe-with-name-2.html"></iframe>
<iframe src="data:text/html,<script>window.name='foo';</script>window that changes its name"></iframe>