1 files changed, 36 insertions, 0 deletions
diff --git a/testing/web-platform/tests/fenced-frame/resources/background-fetch-sw.js b/testing/web-platform/tests/fenced-frame/resources/background-fetch-sw.js
new file mode 100644
index 0000000000..44b7d087b5
--- /dev/null
+++ b/testing/web-platform/tests/fenced-frame/resources/background-fetch-sw.js
@@ -0,0 +1,36 @@
+self.addEventListener('install', e => e.waitUntil(skipWaiting()));
+self.addEventListener('activate', e => e.waitUntil(clients.claim()));
+
+self.addEventListener('message', async e => {
+  const method = e.data;
+
+  let promise;
+  switch (method) {
+    case 'fetch':
+      promise = self.registration.backgroundFetch.fetch(
+          'test-fetch', ['background-fetch-inner.https.html.headers'],
+          {title: 'Background Fetch'});
+      break;
+    case 'get':
+      promise = self.registration.backgroundFetch.get('test-fetch')
+      break;
+    case 'getIds':
+      promise = registration.backgroundFetch.getIds();
+      break;
+    default:
+      promise = Promise.resolve();
+      break;
+  }
+
+  const message =
+      await promise
+          .then(() => {
+            return `[backgroundFetch.${method}] Unexpectedly started`;
+          })
+          .catch((e) => {
+            return `[backgroundFetch.${
+                method}] Failed inside fencedframe as expected`;
+          });
+
+  e.source.postMessage(message);
+});