domparser-iframe-base-pushstate.html

<!DOCTYPE html>
<meta charset="utf-8">
<title>An iframe that does DOMParser stuff with base and pushstates itself</title>
<base href="/fake/base-from-iframe">

<script>
"use strict";
history.pushState(null, "", "/fake/push-state-from-iframe");
</script>
<script src="/domparsing/resources/domparser-iframe.js"></script>

chromium/third_party/blink/web_tests/external/wpt/domparsing/resources/domparser-iframe-base-pushstate.html