20 lines
891 B
HTML
20 lines
891 B
HTML
<!doctype html>
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<title>Shadow DOM: Modifying an element ID inside a disconnected shadow root does not break getElementById</title>
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<link rel="help" href="https://dom.spec.whatwg.org/#dom-nonelementparentnode-getelementbyid">
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<link rel="author" name="Simon Wülker">
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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"></div>
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<script>
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test(function() {
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let host = document.getElementById("host");
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host.attachShadow({ mode: "open" }).innerHTML = `<div id="test-id"></div>`;
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let element = host.shadowRoot.getElementById("test-id");
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assert_true(!!element);
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host.remove();
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host.shadowRoot.getElementById("test-id").id = "new-id";
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assert_equals(host.shadowRoot.getElementById("new-id"), element);
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}, "ShadowRoot.getElementById works on elements whose id was modified after the root was disconnected");
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</script>
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