|  | <!DOCTYPE html> | 
|  | <meta charset="utf-8"> | 
|  | <title>Test partitioning of shared workers</title> | 
|  | <script src="/resources/testharness.js"></script> | 
|  | <script src="/resources/testharnessreport.js"></script> | 
|  | <script src="/common/get-host-info.sub.js"></script> | 
|  |  | 
|  | <body> | 
|  | <script> | 
|  | async function onload() { | 
|  | const worker = new SharedWorker("support/shared-name.js"); | 
|  |  | 
|  | let e = await new Promise((r) => {worker.port.onmessage = r}); | 
|  | assert_equals(e.data.counter, 1); | 
|  |  | 
|  | const third_party_url = new URL( | 
|  | 'support/window-sw-shared-name.html', | 
|  | get_host_info().HTTP_NOTSAMESITE_ORIGIN + self.location.pathname); | 
|  |  | 
|  | third_party_window = window.open(third_party_url); | 
|  |  | 
|  | e = await new Promise((r) => {window.onmessage = r}); | 
|  | assert_equals(e.data.counter, 1); | 
|  |  | 
|  | third_party_window.close(); | 
|  | } | 
|  |  | 
|  | promise_test(onload); | 
|  | </script> | 
|  | </body> |