<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>

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();