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21 lines
922 B
HTML
21 lines
922 B
HTML
<!doctype html>
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<title>CSS Test: Invalidation of :host selectors</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/#host-selector">
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<link rel="help" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1499603">
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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" style="color: green"></div>
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<script>
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host.attachShadow({ mode: "open" }).innerHTML = `
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<style>
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:host { color: red !important }
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</style>
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`;
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test(function() {
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assert_equals(getComputedStyle(host).color, "rgb(255, 0, 0)");
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host.shadowRoot.querySelector("style").remove();
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assert_equals(getComputedStyle(host).color, "rgb(0, 128, 0)");
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}, ":host rules are properly invalidated when stylesheets are removed");
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</script>
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