chromium/third_party/blink/web_tests/external/wpt/browsing-topics/fetch-topics.tentative.https.html

<!doctype html>
<body>
  <script src=/resources/testharness.js></script>
  <script src=/resources/testharnessreport.js></script>
  <script src=/browsing-topics/resources/header-util.sub.js></script>
  <script>
    promise_test(async t => {
      let response = await fetch('./resources/check-topics-request-header.py', {browsingTopics: true});
      let topics_header = await response.text();

      // An empty result indicates that the request was eligible for topics.
      // Currently, the web-platform-tests framework does not support actually
      // handling the topics request.
      assert_equals(topics_header, EMPTY_TOPICS_HEADER);
    }, 'test fetch(<url>, {browsingTopics: true})');
  </script>
</body>