ladybird/Tests/LibWeb/Text/input/HTML/Window-event-handler-in-detached-DOM.html

<script src="../include.js"></script>
<script>
    test(() => {
        var parser = new DOMParser();
        var doc = parser.parseFromString("", "text/html");
        var body = doc.createElement("body");
        body.onblur = null;
        println("PASS (didn't crash)");
    });
</script>