tor-browser

The Tor Browser
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dictionary-fetch-with-link-header.tentative.https.html (1992B)


      1 <!DOCTYPE html>
      2 <head>
      3 <meta charset="utf-8">
      4 <meta name="timeout" content="long"/>
      5 <script src="/resources/testharness.js"></script>
      6 <script src="/resources/testharnessreport.js"></script>
      7 <script src="/common/get-host-info.sub.js"></script>
      8 <script src="/common/utils.js"></script>
      9 <script src="./resources/compression-dictionary-util.sub.js"></script>
     10 </head>
     11 <body>
     12 <script>
     13 
     14 async function addIframeWithLinkRelCompressionDictionaryHeader(dict_url) {
     15  return new Promise((resolve) => {
     16    const base_page_url = './resources/empty.html';
     17    const page_url =
     18        base_page_url +
     19        `?pipe=header(link,<${dict_url}>; rel="compression-dictionary")`;
     20    const iframe = document.createElement('iframe');
     21    iframe.src = page_url;
     22    iframe.addEventListener('load', () => {
     23      resolve(iframe);
     24    });
     25    document.body.appendChild(iframe);
     26  })
     27 }
     28 
     29 compression_dictionary_promise_test(async (t) => {
     30  const dict_token = token();
     31  const url = new URL(
     32      `${kRegisterDictionaryPath}?save_header=${dict_token}`, location.href);
     33  const iframe =
     34      await addIframeWithLinkRelCompressionDictionaryHeader(url.href);
     35  t.add_cleanup(() => {
     36    iframe.remove();
     37  });
     38  // Wait for a while to ensure that the dictionary is fetched.
     39  await new Promise(resolve => window.requestIdleCallback(resolve));
     40  const headers = await waitUntilPreviousRequestHeaders(t, dict_token);
     41  assert_true(headers !== undefined, 'Headers should be available');
     42  assert_equals(headers['sec-fetch-mode'], 'cors');
     43  // Wait until `available-dictionary` header is available.
     44  assert_equals(
     45      await waitUntilAvailableDictionaryHeader(t, {}),
     46      kDefaultDictionaryHashBase64);
     47  // Check if the data compressed using Brotli with the dictionary can be
     48  // decompressed.
     49  const data_url = `${kCompressedDataPath}?content_encoding=dcb`;
     50  assert_equals(await (await fetch(data_url)).text(), kExpectedCompressedData);
     51 }, 'Fetch same origin dictionary using link header');
     52 
     53 </script>
     54 </body>