<!DOCTYPE html>
<title>Update on navigation</title>
<script src='/resources/testharness.js'></script>
<script src='/resources/testharnessreport.js'></script>
<script src='resources/test-helpers.sub.js'></script>
<script>
promise_test(async (t) => {
    var script = 'resources/update-fetch-worker.py';
    var scope = 'resources/trickle.py?ms=1000&count=1';

    const registration = await service_worker_unregister_and_register(t, script, scope);
    t.add_cleanup(() => registration.unregister());

    if (registration.installing)
        await wait_for_state(t, registration.installing, 'activated');

    const frame = await with_iframe(scope);
    t.add_cleanup(() => frame.remove());
}, 'The active service worker in charge of a navigation load should not be terminated as part of updating the registration');
</script>