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29 lines
1.2 KiB
HTML
29 lines
1.2 KiB
HTML
<!doctype html>
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<title>CSS Scoping: Invalidation of style data while ShadowRoot is disconnected.</title>
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<link rel="author" title="Emilio Cobos Álvarez" href="mailto:emilio@crisal.io">
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<link rel="author" title="Mozilla" href="https://mozilla.org">
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<link rel="help" href="https://drafts.csswg.org/css-scoping">
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<link rel="help" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1612114">
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<div id="host"></div>
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<script>
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let t = async_test("Invalidation of style data while ShadowRoot is disconnected.");
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let host = document.getElementById("host");
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host.attachShadow({ mode: "open" }).innerHTML = `
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<style>
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div { color: red }
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</style>
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<div></div>
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`;
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assert_equals(getComputedStyle(host.shadowRoot.querySelector("div")).color, "rgb(255, 0, 0)");
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host.remove();
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host.shadowRoot.querySelector("style").remove();
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requestAnimationFrame(t.step_func(function() {
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requestAnimationFrame(t.step_func_done(function() {
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document.body.appendChild(host);
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assert_not_equals(getComputedStyle(host.shadowRoot.querySelector("div")).color, "rgb(255, 0, 0)");
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}));
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}));
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</script>
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