26 lines
935 B
HTML
26 lines
935 B
HTML
<!doctype html>
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<title>style is invalidated properly as a result of attribute changes in display: none subtrees</title>
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<link rel="help" href="https://drafts.csswg.org/cssom/#dom-window-getcomputedstyle">
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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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<script src=/resources/testharness.js></script>
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<script src=/resources/testharnessreport.js></script>
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<style>
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div {
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color: red
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}
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.foo {
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color: lime;
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}
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</style>
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<div style="display: none">
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<div id="undisplayed"></div>
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</div>
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<script>
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test(function() {
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let undisplayed_style = getComputedStyle(undisplayed);
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assert_equals(undisplayed_style.color, "rgb(255, 0, 0)");
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undisplayed.classList.add("foo");
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assert_equals(undisplayed_style.color, "rgb(0, 255, 0)");
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}, "getComputedStyle gets invalidated in display: none subtrees due to attribute mutations");
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</script>
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