<!DOCTYPE html>
<title>Service Worker Fetch Event</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script>
promise_test(async (test) => {
    return navigator.serviceWorker.register("check-service-worker-header.py")
}, "Testing loading service worker script with the correct Service-Worker header");
</script>