cache-storage.https.html

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This WPT test may be referenced by the following Test IDs:
- /speculation-rules/prerender/cache-storage.https.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<title>Same-origin prerendering can access cache storage</title>

<meta name="timeout" content="long">

<script src="/resources/testharness.js"></script>

<script src="/resources/testharnessreport.js"></script>

<script src="/common/dispatcher/dispatcher.js"></script>

<script src="/common/utils.js"></script>

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

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

<body>

<script>

setup(() => assertSpeculationRulesIsSupported());

promise_test(async t => {

  const cacheName = token();

  const cache = await caches.open(cacheName);

  await cache.add('resources/cache.txt');

  t.add_cleanup(() => caches.delete(cacheName));

  const response = await cache.match('resources/cache.txt');

  const cacheText = await (response ? response.text() : 'primary cache match failed');

  const {exec} = await create_prerendered_page(t);

  const result = await exec(async cacheName => {

    const cache = await caches.open(cacheName);

    const match = await cache.match('cache.txt');

    return await match.text();

  }, [cacheName]);

  assert_equals(

    result, cacheText,

    'prerendering page should be able to read from cache storage.');

}, 'prerendering page should be able to access cache storage')

</script>