20 lines
979 B
HTML
20 lines
979 B
HTML
<!doctype html>
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<title>CSSImportRule correctly unlinks its child stylesheet from its parent</title>
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<link rel="author" title="Emilio Cobos Álvarez" href="mailto:emilio@crisal.io">
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<link rel="help" href="https://drafts.csswg.org/cssom/#the-cssimportrule-interface">
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<style>
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@import "data:text/css,:root{background:red}";
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</style>
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<script>
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let t = async_test("@import stylesheet is properly unlinked from parent after removal");
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window.onload = t.step_func_done(function() {
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let sheet = document.styleSheets[0];
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let childSheet = sheet.cssRules[0].styleSheet;
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assert_not_equals(childSheet, null, "@import rule should have a stylesheet");
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assert_equals(childSheet.parentStyleSheet, sheet, "@import rule should the correct parent");
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sheet.deleteRule(0);
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assert_equals(childSheet.parentStyleSheet, null, "@import rule should be correctly unlinked");
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});
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</script>
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