1 files changed, 8 insertions, 0 deletions
diff --git a/testing/web-platform/tests/appmanifest/id-member/id-member-service-worker.js b/testing/web-platform/tests/appmanifest/id-member/id-member-service-worker.js
new file mode 100644
index 0000000000..c0a16c4a46
--- /dev/null
+++ b/testing/web-platform/tests/appmanifest/id-member/id-member-service-worker.js
@@ -0,0 +1,8 @@
+// Some user agents only offer app installation if there is a SW and it handles
+// offline requests.
+
+self.addEventListener("fetch", e => {
+  e.respondWith(fetch(e.request).catch(_ => {
+    return new Response('Offline test.');
+  }));
+});