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<!DOCTYPE html>
<title>Service Worker: postMessage Blob URL</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="resources/test-helpers.sub.js"></script>
<script>
promise_test(t => {
let script = 'resources/postmessage-blob-url.js';
let scope = 'resources/blank.html';
let registration;
let blobText = 'Blob text';
let blob;
let blobUrl;
return service_worker_unregister_and_register(t, script, scope)
.then(r => {
add_completion_callback(() => r.unregister());
registration = r;
let worker = registration.installing;
blob = new Blob([blobText]);
blobUrl = URL.createObjectURL(blob);
return new Promise(resolve => {
navigator.serviceWorker.onmessage = e => { resolve(e.data); }
worker.postMessage(blobUrl);
});
})
.then(response => {
assert_equals(response, 'Worker reply:' + blobText);
URL.revokeObjectURL(blobUrl);
return registration.unregister();
});
}, 'postMessage Blob URL to a ServiceWorker');
</script>
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