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<!DOCTYPE html>
<meta charset=utf-8>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="early-hints-helpers.sub.js"></script>
<body>
<script>
promise_test(async (t) => {
const params = new URLSearchParams(window.location.search);
const preload_url = params.get("preload-url");
await fetchScript(preload_url);
assert_true(isPreloadedByEarlyHints(preload_url));
}, "Redirect to the same origin keeps early hints preload");
</script>
</body>