window-serviceworker-failure.https.html (2235B)
1 <!DOCTYPE html> 2 <meta charset="utf-8"> 3 <title>SharedArrayBuffer cannot cross agent clusters, service worker edition</title> 4 <link rel="help" href="https://html.spec.whatwg.org/multipage/#structuredserialize"> 5 <link rel="author" title="Domenic Denicola" href="mailto:d@domenic.me"> 6 <script src="/resources/testharness.js"></script> 7 <script src="/resources/testharnessreport.js"></script> 8 <script src="/service-workers/service-worker/resources/test-helpers.sub.js"></script> 9 10 <script> 11 "use strict"; 12 promise_test(t => { 13 const scope = "resources/blank.html"; 14 return service_worker_unregister_and_register(t, "resources/serviceworker-failure.js", scope) 15 .then(reg => { 16 t.add_cleanup(() => service_worker_unregister(t, scope)); 17 return wait_for_state(t, reg.installing, "activated"); 18 }) 19 .then(() => with_iframe(scope)) 20 .then(iframe => { 21 t.add_cleanup(() => iframe.remove()); 22 const sw = iframe.contentWindow.navigator.serviceWorker; 23 let state = "start in window"; 24 25 return new Promise(resolve => { 26 sw.onmessage = t.step_func(e => { 27 if (e.data === "start in worker") { 28 assert_equals(state, "start in window"); 29 sw.controller.postMessage(new SharedArrayBuffer()); 30 state = "we are expecting confirmation of an onmessageerror in the worker"; 31 } else if (e.data === "onmessageerror was received in worker") { 32 assert_equals(state, "we are expecting confirmation of an onmessageerror in the worker"); 33 state = "we are expecting a messageerror due to the worker sending us a SAB"; 34 sw.controller.postMessage(state); 35 } else { 36 assert_unreached("Got an unexpected message from the service worker: " + e.data); 37 } 38 }); 39 40 sw.onmessageerror = t.step_func(e => { 41 assert_equals(state, "we are expecting a messageerror due to the worker sending us a SAB"); 42 43 assert_equals(e.data, null, "data"); 44 assert_equals(e.origin, self.origin, "origin"); 45 assert_not_equals(e.source, null, "source"); 46 assert_equals(e.ports.length, 0, "ports length"); 47 48 state = "done in window"; 49 resolve(); 50 }); 51 52 sw.controller.postMessage(state); 53 }); 54 }); 55 }); 56 </script>