third_party/web_platform_tests/html/browsers/the-window-object/garbage-collection-and-browsing-contexts/discard_iframe_history_4-2.html

<a href="discard_iframe_history_4-3.html" onclick="parent.push_length()">Click me</a>
<script>
onload = function() {setTimeout(parent.t.step_func(function() {document.links[0].click()}), 100)}
</script>