File: pragma-no-cache-with-cache-control.html

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<!DOCTYPE html>
<meta charset="utf-8">
<title>HTTP Cache: Cache-Control with Pragma: no-cache</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<body>
<script>
promise_test(async t => {
  // According to https://www.rfc-editor.org/rfc/rfc9111.html#name-pragma
  // the pragma header is deprecated.
  // When there's a mismatch between pragma and Cache-Control then the latter
  // should be respected, and the resource should be cached.
  const url = 'resources/cached_pragma_rand.py'

  // First fetch to populate the cache
  const response1 = await fetch(url, { cache: 'default' });
  assert_true(response1.ok, 'First fetch should succeed');
  const text1 = await response1.text();

  // Second fetch should be served from cache
  const response2 = await fetch(url, { cache: 'default' });
  assert_true(response2.ok, 'Second fetch should succeed');
  const text2 = await response2.text();

  assert_equals(text1, text2, 'Responses should be identical, indicating caching');
}, 'Response with Cache-Control: max-age=2592000, public and Pragma: no-cache should be cached');
</script>
</body>