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Test Info:

><bdi id=test1><refa id=test2>&#xf921;>></bdi>><h1 id=test3><script>
document.addEventListener("DOMContentLoaded", CFcrash);
function CFcrash() {
test1.setAttribute("dir", "invalid");
test2.textContent = " &#xf851;S ";
test3.appendChild(test1);
}</script>