referrer-policy-not-accepted.https.html

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This WPT test may be referenced by the following Test IDs:
- /speculation-rules/prefetch/referrer-policy-not-accepted.https.html?1-1 - WPT Dashboard Interop Dashboard
- /speculation-rules/prefetch/referrer-policy-not-accepted.https.html?2-2 - WPT Dashboard Interop Dashboard
- /speculation-rules/prefetch/referrer-policy-not-accepted.https.html?3-last - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<title>Prefetch attempts with an unacceptable referrer policy</title>

<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="../resources/utils.js"></script>

<script src="resources/utils.sub.js"></script>

<!--Split test cases due to the use of timeouts in speculation rules test utilities.-->

<meta name="variant" content="?1-1">

<meta name="variant" content="?2-2">

<meta name="variant" content="?3-last">

<script>

"use strict";

setup(() => assertSpeculationRulesIsSupported());

subsetTest(promise_test, async t => {

  const agent = await spawnWindow(t);

  await agent.setReferrerPolicy("unsafe-url");

  const expectedReferrer = agent.getExecutorURL().href;

  const nextURL = agent.getExecutorURL({ page: 2 });

  await agent.forceSinglePrefetch(nextURL);

  await agent.navigate(nextURL);

  const headers = await agent.getRequestHeaders();

  // The referrer policy restriction does not apply to same-site prefetch.

  assert_prefetched(headers, "must be prefetched");

  assert_equals(headers.referer, expectedReferrer, "must send the full URL as the referrer");

}, 'with "unsafe-url" referrer policy on same-site referring page');

subsetTest(promise_test, async t => {

  const agent = await spawnWindow(t);

  await agent.setReferrerPolicy("unsafe-url");

  const expectedReferrer = agent.getExecutorURL().href;

  const nextURL = agent.getExecutorURL({ hostname: PREFETCH_PROXY_BYPASS_HOST, page: 2 });

  // This prefetch attempt should be ignored.

  await agent.forceSinglePrefetch(nextURL);

  await agent.navigate(nextURL);

  const headers = await agent.getRequestHeaders();

  assert_not_prefetched(headers, "must not be prefetched");

  assert_equals(headers.referer, expectedReferrer, "must send the full URL as the referrer");

}, 'with "unsafe-url" referrer policy on cross-site referring page');

subsetTest(promise_test, async t => {

  const agent = await spawnWindow(t);

  await agent.setReferrerPolicy("unsafe-url");

  const expectedReferrer = agent.getExecutorURL().href;

  const nextURL = agent.getExecutorURL({ hostname: PREFETCH_PROXY_BYPASS_HOST, page: 2 });

  // This prefetch attempt should be ignored.

  await agent.execute_script((url) => {

    addLink(url);

    insertDocumentRule();

  }, [nextURL]);

  await new Promise(resolve => t.step_timeout(resolve, 2000));

  await agent.navigate(nextURL);

  const headers = await agent.getRequestHeaders();

  assert_not_prefetched(headers, "must not be prefetched");

  assert_equals(headers.referer, expectedReferrer, "must send the full URL as the referrer");

}, 'with "unsafe-url" referrer policy on cross-site referring page with document rule');

</script>