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https://github.com/LadybirdBrowser/ladybird.git
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3b7534b362
Before this change, removing a style element from inside a shadow tree would cause it to be unregistered with the document-level list of sheets instead of the shadow-root-level list. This would eventually lead to a verification failure if someone tried to update the text contents of that style element, since it was still in the shadow-root-level list, but now with a null owner element. Fixes a crash on https://www.swedbank.se/
20 lines
647 B
HTML
20 lines
647 B
HTML
<div id=foo>
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<template shadowrootmode="open">
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<style>
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div { border: 5px solid black; }
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</style>
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<div>hello</div>
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</template>
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</div>
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<script src="../include.js"></script>
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<script>
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test(() => {
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println(foo.shadowRoot.styleSheets);
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println("Before remove, sheet count: " + foo.shadowRoot.styleSheets.length);
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let style = foo.shadowRoot.firstElementChild;
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style.remove()
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println("After remove, sheet count: " + foo.shadowRoot.styleSheets.length);
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style.innerText = "div { border: 10px solid red; }";
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println("After setting innerText of removed sheet, we're still alive!");
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});
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</script>
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