referrer-policy-attribute-noreferrer.html

<!DOCTYPE html>
<html>
<head>
    <script src="/resources/testharness.js"></script>
    <script src="/resources/testharnessreport.js"></script>
</head>
<body>
    <!-- Test that rel="noreferrer" takes precedence over the
         'referrerpolicy' attribute. -->
    <a href="resources/referrer-attr-anchor-noreferrer-target.html"
       rel="noreferrer"
       referrerpolicy="unsafe-url" id="click-me">click me</a>
    <script>
        document.getElementById("click-me").click();
    </script>
</body>
</html>

chromium/third_party/blink/web_tests/http/tests/security/referrer-policy-attribute-noreferrer.html