1 files changed, 6 insertions, 0 deletions
diff --git a/testing/web-platform/tests/service-workers/service-worker/resources/controlled-worker-late-postMessage.js b/testing/web-platform/tests/service-workers/service-worker/resources/controlled-worker-late-postMessage.js
new file mode 100644
index 0000000000..41d2db43b1
--- /dev/null
+++ b/testing/web-platform/tests/service-workers/service-worker/resources/controlled-worker-late-postMessage.js
@@ -0,0 +1,6 @@
+setTimeout(() => {
+    navigator.serviceWorker.onmessage = e => self.postMessage(e.data);
+}, 500);
+setTimeout(() => {
+    self.postMessage("No message received");
+}, 5000);