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chromium/third_party/blink/web_tests/dom/domparsing/domparser-detached-no-crash.html 

<!DOCTYPE html>
<title>Document-detached use of DOMParser</title>
<script src="../../resources/testharness.js"></script>
<script src="../../resources/testharnessreport.js"></script>
<body>
<script>
test(() => {
    var iframe = document.createElement("iframe");
    iframe.src = "data:text/html,<b>";
    document.body.appendChild(iframe);
    var Parser = iframe.contentWindow.DOMParser;
    iframe.remove();
    var d = new Parser();
    assert_true(d != null);
    var detached = d.parseFromString("no crash", "text/html");
    assert_equals(detached.defaultView, null);
});
</script>
</body>