outdent-with-concurrent-dom-modification.html

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<!DOCTYPE html>

<meta charset="utf-8">

<title>Outdent with concurrent DOM modification should not crash</title>

<link rel="help" href="https://w3c.github.io/editing/docs/execCommand/">

<script>

    function runTest() {

        iframe.contentWindow.onpagehide = () => {

            tCF3.innerHTML = 1

};

        document.execCommand("selectAll");

        document.execCommand("outdent");

</script>

<body onload=runTest() contenteditable="" id=tCF1>

    <h1>This page should not result in crash</h1>

    <ol id=tCF2>

        <li id=tCF3> some text

            <iframe id=iframe></iframe>

        </li>

    </ol>

</body>

</html>