1 files changed, 35 insertions, 0 deletions
diff --git a/devtools/client/aboutdebugging/test/browser/resources/service-workers/push-sw.js b/devtools/client/aboutdebugging/test/browser/resources/service-workers/push-sw.js
new file mode 100644
index 0000000000..1231697ddd
--- /dev/null
+++ b/devtools/client/aboutdebugging/test/browser/resources/service-workers/push-sw.js
@@ -0,0 +1,35 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+/* eslint-env worker */
+/* global clients */
+
+"use strict";
+
+// Send a message to all controlled windows.
+function postMessage(message) {
+  return clients.matchAll().then(function (clientlist) {
+    clientlist.forEach(function (client) {
+      client.postMessage(message);
+    });
+  });
+}
+
+// Don't wait for the next page load to become the active service worker.
+self.addEventListener("install", function (event) {
+  event.waitUntil(self.skipWaiting());
+});
+
+// Claim control over the currently open test page when activating.
+self.addEventListener("activate", function (event) {
+  event.waitUntil(
+    self.clients.claim().then(function () {
+      return postMessage("sw-claimed");
+    })
+  );
+});
+
+// Forward all "push" events to the controlled window.
+self.addEventListener("push", function (event) {
+  event.waitUntil(postMessage("sw-pushed"));
+});