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firefox/testing/web-platform/tests/css/cssom/insertRule-syntax-error-01.html
Daniel Baumann 5e9a113729
Adding upstream version 140.0.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
2025-06-25 09:37:52 +02:00

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HTML

<!DOCTYPE html>
<link rel="help" href="https://drafts.csswg.org/cssom-1/#insert-a-css-rule">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<style>
p { color: green; }
</style>
<p id="test">This text should be green.</p>
<script>
test(function() {
assert_throws_dom("SyntaxError", () => document.styleSheets[0].insertRule("p { color: red; } garbage", 1));
assert_equals(getComputedStyle(document.getElementById("test")).color, "rgb(0, 128, 0)");
}, "A syntax error in insertRule should throw and not affect the style of the page");
</script>