<body dir="rtl"></body>
<script src="../../resources/js-test-pre.js"></script>
<script>
    document.body.offsetHeight;
    document.addEventListener("DOMSubtreeModified", function() {
        document.execCommand("SelectAll");
        let svg = document.createElementNS("http://www.w3.org/2000/svg", "desc");
        document.appendChild(svg);
    });

    shouldThrowErrorName("document.replaceChild(document.body, document.documentElement)", "HierarchyRequestError");
</script>