27 lines
831 B
HTML
27 lines
831 B
HTML
<!doctype html>
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<meta charset=utf-8>
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<title>Selection with nested videos doesn't crash</title>
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<link rel="help" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1887963">
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<script>
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async_test(t => {
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document.addEventListener("DOMContentLoaded", () => {
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let c = a.attachShadow({mode: "open"});
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const sel = window.getSelection();
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sel.setBaseAndExtent(b, 0, c, 0);
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assert_equals(sel.anchorNode, b);
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assert_equals(sel.anchorOffset, 0);
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assert_equals(sel.focusNode, b);
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assert_equals(sel.focusOffset, 0);
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t.done();
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})
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}, 'selection have the same anchor and focus nodes because b and c are in different tree scopes.');
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</script>
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<div id="a">A</div>
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<video>
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<video id="b"></video>
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</video>
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