speculation-rules/prerender/referrer-policy-from-rules.https.html

<!DOCTYPE html>
<meta name="timeout" content="long">
<title>Prerender with the referrer policy specified in speculation rules</title>

<!--Split test cases due to the use of timeouts in test utilities.-->
<meta name="variant" content="?1-1">
<meta name="variant" content="?2-last">

<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/common/dispatcher/dispatcher.js"></script>
<script src="/common/subset-tests.js"></script>
<script src="/common/utils.js"></script>
<script src="/html/browsers/browsing-the-web/remote-context-helper/resources/remote-context-helper.js"></script>
<script src="../resources/utils.js"></script>
<script src="resources/utils.js"></script>

<body>
<script>
setup(() => assertSpeculationRulesIsSupported());

subsetTest(promise_test, async t => {
  const {exec, tryToActivate} = await create_prerendered_page(
      t, {},
      {referrer_policy: 'strict-origin-when-cross-origin'},
      {referrer_policy: 'strict-origin'});

  const actualReferrer = await exec(() => { return document.referrer; });
  const expectedReferrer = location.origin + "/";
  assert_equals(actualReferrer, expectedReferrer, 'must send the origin as the referrer');

  const result = await tryToActivate();
  assert_equals(result, 'activated');
}, 'with "strict-origin" referrer policy in rule set overriding "strict-origin-when-cross-origin" of referring page');

subsetTest(promise_test, async t => {
  const {exec, tryToActivate} = await create_prerendered_page(
      t, {},
      {referrer_policy: 'strict-origin-when-cross-origin'},
      {referrer_policy: 'no-referrrrrrrer'});
  const result = await tryToActivate();
  assert_equals(result, 'discarded');
}, 'unrecognized policies invalidate the rule');
</script>