chromium/src/third_party/blink/web_tests/fast/animation/keyframe-constructor-with-element-from-inactive-document.html

<iframe id="i"></iframe>
PASS if no crash.
<script>
if (window.testRunner)
  testRunner.dumpAsText();
var el = i.contentDocument.documentElement;
i.remove();
new KeyframeEffect(el, [{left: '1px'}]); 
</script>