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chromium/third_party/blink/web_tests/external/wpt/cookies/meta-blocked.html 

<!DOCTYPE html>
<head>
  <meta http-equiv="set-cookie" content="meta-set-cookie=1">
  <script src="/resources/testharness.js"></script>
  <script src="/resources/testharnessreport.js"></script>
</head>
<body>
  <script>
    test(t => {
      assert_equals(document.cookie.indexOf('meta-set-cookie'), -1);
    }, "Cookie is not set from `<meta>`.");
  </script>
</body>