[Bug]: 404 https://example.com/OneSignalSDK.sw.js

[ln-e]

What happened?

OneSignal occasionally attempts to fetch a service worker from an unexpected URL (e.g. https://example.com/OneSignalSDK.sw.js?appId=...&sdkVersion=...).
This happens when the main worker https://example.com/OneSignalSDKWorker.js fails to install — the SDK falls back to an internal _fallbackToUserModelBetaWorker method, which try to find file on current domain. Since the OneSignal documentation does not mention creating such a file, it’s guaranteed to be missing.
As a result, we end up loading redundant code that never works and only produces repeated errors in the logs.

Steps to Reproduce:

What browsers are you seeing the problem on?

Other

What operating system are you running?

Sonoma

Steps to reproduce?

Simulate a network failure or block OneSignal CDN.

Open the app with OneSignal enabled.

Check the network tab — repeated fetches to a non-existent OneSignalSDK.sw.js endpoint appear.

What did you expect to happen?

No 404 request are made

Relevant log output