fetch-event-respond-with-readable-stream-chunk.https.html

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This WPT test may be referenced by the following Test IDs:
- /service-workers/service-worker/fetch-event-respond-with-readable-stream-chunk.https.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<meta charset="utf-8">

<title>respondWith with a response built from a ReadableStream</title>

<script src="/resources/testharness.js"></script>

<script src="/resources/testharnessreport.js"></script>

<script src="resources/test-helpers.sub.js"></script>

<script>

'use strict';

const WORKER = 'resources/fetch-event-respond-with-readable-stream-chunk-worker.js';

const SCOPE = 'resources/fetch-event-respond-with-readable-stream-chunk-iframe.html';

promise_test(async t => {

    var reg = await service_worker_unregister_and_register(t, WORKER, SCOPE);

    add_completion_callback(() => reg.unregister());

    await wait_for_state(t, reg.installing, 'activated');

    let iframe = await with_iframe(SCOPE);

    t.add_cleanup(() => iframe.remove());

    let response = await iframe.contentWindow.fetch('body-stream');

    assert_equals(await response.text(), 'chunk #1 chunk #2 chunk #3 chunk #4');

}, 'Respond by chunks with a Response built from a ReadableStream');

</script>