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Verify that <link rel="compression-dictionary>" is body-ok #61193

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fred-wang merged 1 commit into from
Jul 16, 2026
Merged

Verify that <link rel="compression-dictionary>" is body-ok #61193

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51 changes: 51 additions & 0 deletions fetch/compression-dictionary/dictionary-fetch-with-link-element-in-body.tentative.https.html
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Original file line number Diff line number Diff line change
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<!DOCTYPE html>
<head>
<meta charset="utf-8">
<meta name="timeout" content="long"/>
<meta name="assert" content="Verify that <link rel=compression-dictionary> is body-ok.">
<link rel="help" href="https://html.spec.whatwg.org/#body-ok">
<link rel="help" href="https://github.com/whatwg/html/pull/11620">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="./resources/compression-dictionary-util.sub.js"></script>
</head>
<body>
<p id="paragraph">Hello<link id="inBodyLink" rel="compression-dictionary" href="./resources/register-dictionary.py">World!</p>
<p id="reference">HelloWorld!</p>
<script>
promise_test(async (t) => {
let nodes = paragraph.childNodes;
assert_equals(nodes.length, 3);

assert_equals(nodes[0].nodeType, Node.TEXT_NODE);
assert_equals(nodes[0].textContent, "Hello");

assert_equals(nodes[1], inBodyLink);
const inBodyLinkRect = nodes[1].getBoundingClientRect();
assert_equals(inBodyLinkRect.width, 0);
assert_equals(inBodyLinkRect.height, 0);
assert_equals(inBodyLinkRect.x, 0);
assert_equals(inBodyLinkRect.y, 0);

assert_equals(nodes[2].nodeType, Node.TEXT_NODE);
assert_equals(nodes[2].textContent, "World!");

const epsilon = 0.1;
assert_approx_equals(paragraph.clientWidth, reference.clientWidth, epsilon);
assert_approx_equals(paragraph.clientHeight, reference.clientHeight, epsilon);
}, '<link rel="compression-dictionary"> is allowed in a paragraph.');

compression_dictionary_promise_test(async (t) => {
// Wait until `available-dictionary` header is available.
assert_equals(
await waitUntilAvailableDictionaryHeader(t, {}),
kDefaultDictionaryHashBase64);

// Check if the data compressed using Brotli with the dictionary can be
// decompressed.
const data_url = `${kCompressedDataPath}?content_encoding=dcb`;
assert_equals(await (await fetch(data_url)).text(), kExpectedCompressedData);
}, 'A <link rel="compression-dictionary"> in body is loaded.');

</script>
</body>
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