remove-subframe-composited-nonstacking-ancestor.html

<!doctype HTML>
<script>
if (window.testRunner)
    testRunner.dumpAsText();
</script>
Test passes if it does not crash.
<div style="backface-visibility: hidden"></div>
<span style="clip-path: polygon(0px 15px, 0px 54px, 100px 0px)">
  <iframe align="right"></iframe>
</span>

chromium/third_party/blink/web_tests/paint/invalidation/compositing/remove-subframe-composited-nonstacking-ancestor.html