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<!DOCTYPE html>
<title>Check that non-successful responses result in discarding the prerender</title>
<meta name="variant" content="?code=204">
<meta name="variant" content="?code=205">
<meta name="variant" content="?code=402">
<meta name="variant" content="?code=404">
<meta name="variant" content="?code=500">
<meta name="variant" content="?code=503">
<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>
<script src="resources/utils.js"></script>
<body>
<script>
setup(() => assertSpeculationRulesIsSupported());
const params = new URLSearchParams(window.location.search);
promise_test(async t => {
// Pass the `code` search param so that a prerendered page is served with the
// response code.
const {exec, tryToActivate} =
await create_prerendered_page(t, {'prerendering': params});
// Open new window with url to clear cache data through Clear-Site-Data header.
// Ensure that the cache is cleared before the navigation.
//
// This is a hack for Chromium that may trigger prefetch prior to prerender,
// and serve the same prefetched response multiple times (This is known as
// PrefetchReusable). This breaks the assumption of this test that the first
// prerender request fails for non-OK status code and then the next real
// navigation succeeds with 200. With the PrefetchReusable, the real
// navigation sees the prefetched error response and fails.
const gotMessage = new Promise(resolve => {
window.addEventListener('message', e => {
resolve(e.data);
}, {
once: true
});
});
window.open("/../../clear-site-data/support/clear-site-data-prefetchCache.py");
await gotMessage;
const result = await tryToActivate();
assert_equals(result, 'discarded');
},`Responses with code ${params.get('code')} should be discarded`);
</script>
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