1 files changed, 31 insertions, 0 deletions
diff --git a/testing/web-platform/tests/service-workers/service-worker/resources/fetch-waits-for-activate-worker.js b/testing/web-platform/tests/service-workers/service-worker/resources/fetch-waits-for-activate-worker.js
new file mode 100644
index 0000000000..92a96ff88f
--- /dev/null
+++ b/testing/web-platform/tests/service-workers/service-worker/resources/fetch-waits-for-activate-worker.js
@@ -0,0 +1,31 @@
+var activatePromiseResolve;
+
+addEventListener('activate', function(evt) {
+  evt.waitUntil(new Promise(function(resolve) {
+    activatePromiseResolve = resolve;
+  }));
+});
+
+addEventListener('message', async function(evt) {
+  switch (evt.data) {
+    case 'CLAIM':
+      evt.waitUntil(new Promise(async resolve => {
+        await clients.claim();
+        evt.source.postMessage('CLAIMED');
+        resolve();
+      }));
+      break;
+    case 'ACTIVATE':
+      if (typeof activatePromiseResolve !== 'function') {
+        throw new Error('Not activating!');
+      }
+      activatePromiseResolve();
+      break;
+    default:
+      throw new Error('Unknown message!');
+  }
+});
+
+addEventListener('fetch', function(evt) {
+  evt.respondWith(new Response('Hello world'));
+});