1 files changed, 36 insertions, 0 deletions
diff --git a/testing/web-platform/tests/html/cross-origin-embedder-policy/resources/worker-owner.js b/testing/web-platform/tests/html/cross-origin-embedder-policy/resources/worker-owner.js
new file mode 100644
index 0000000000..d1f172a0b8
--- /dev/null
+++ b/testing/web-platform/tests/html/cross-origin-embedder-policy/resources/worker-owner.js
@@ -0,0 +1,36 @@
+const is_worker = !('window' in self);
+const parent_or_self = is_worker ? self : self.parent;
+
+function startWorkerAndObserveReports(worker_url, wait_for_report) {
+  const worker = new Worker(worker_url);
+  const result_promise = new Promise(resolve => {
+    worker.onmessage = _ => resolve('success');
+    worker.onerror = _ => resolve('error');
+  });
+  worker.postMessage("postMessage('reply to owner from worker');");
+
+  const report_promise = new Promise(resolve => {
+    const observer = new ReportingObserver(reports => {
+      observer.disconnect();
+      resolve(reports.map(r => r.toJSON()));
+    });
+    observer.observe();
+  });
+
+  if (wait_for_report) {
+    Promise.all([result_promise, report_promise]).then(results => {
+      parent_or_self.postMessage(results[1]);
+    });
+  } else {
+    result_promise.then(result => {
+      parent_or_self.postMessage([]);
+    });
+  }
+}
+
+if (is_worker) {
+  onmessage = e => {
+    startWorkerAndObserveReports(e.data.worker_url, e.data.wait_for_report);
+  };
+}
+