chromium/src/third_party/blink/web_tests/fast/dom/shadow/make-marquee-bold-by-exec-command-crash.html

<marquee style="color: white">a</marquee>
<input>
<input>
<link>
<script>
document.designMode="on";
document.execCommand("SelectAll");
document.execCommand("Bold", false);
<script>