speculation-rules/prerender/opt-out.html

<!DOCTYPE html>
<title>Check that non-successful responses result in discarding the prerender</title>
<meta name="timeout" content="long">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/common/utils.js"></script>
<script src="/common/dispatcher/dispatcher.js"></script>
<script src="resources/utils.js"></script>
<body>
<script>

setup(() => assertSpeculationRulesIsSupported());
function test_prerender_response_code(code, expectation) {
  promise_test(async t => {
    const {exec, tryToActivate} = await create_prerendered_page(t, {code});
    const result = await tryToActivate();
    assert_equals(result, expectation);
  },`Responses with code ${code} should be ${expectation}`);
}

const expectations = {
    activated: [200, 201, 202, 203],
    discarded: [204, 205, 402, 404, 500, 503]
};

for (const expect in expectations) {
    for (const code of expectations[expect])
        test_prerender_response_code(code, expect);
}
</script>
</body>