<!DOCTYPE html> <title>CSSOM Test: Chrome crash inserting :dir rule</title> <link rel="help" href="https://crbug.com/1486351"> <p>PASS if no crash.</p> <style id="sheet"> </style> <div id="host"></div> <script> let root = host.attachShadow({mode:"open"}); root.innerHTML = "<slot></slot>"; host.offsetTop; host.innerHTML = "<span>Green</span>"; sheet.sheet.insertRule("html:dir(ltr) { color: green; }"); document.fonts.size(); </script>