1 files changed, 19 insertions, 0 deletions
diff --git a/testing/web-platform/tests/fenced-frame/resources/serviceWorker-push-sw.js b/testing/web-platform/tests/fenced-frame/resources/serviceWorker-push-sw.js
new file mode 100644
index 0000000000..e344b45fd8
--- /dev/null
+++ b/testing/web-platform/tests/fenced-frame/resources/serviceWorker-push-sw.js
@@ -0,0 +1,19 @@
+self.addEventListener('install', e => e.waitUntil(skipWaiting()));
+self.addEventListener('activate', e => e.waitUntil(clients.claim()));
+
+self.addEventListener('message', async e => {
+  const method = e.data;
+
+  const promise = method === 'subscribe' ?
+      self.registration.pushManager.subscribe({userVisibleOnly: true}) :
+      Promise.resolve();
+  const message = await promise
+                      .then(() => {
+                        return `${method}: Unexpectedly started`;
+                      })
+                      .catch((e) => {
+                        return e.message;
+                      });
+
+  e.source.postMessage(message);
+});