It blocks OneSignal Worker

I couldn’t use the plug-in with OneSignal – Free Web Push Notifications

OneSignal – Free Web Push Notifications has its own service worker, before activating Offline Content Onesignal was working well.

After I activated Offline Content, it blocked Onesignal.

Is there a way to importScripts for other service workers like Onesignal?

I read your document for wp-sw-manager @ github . I’m not a developer, I did’t understand how I can use it. If this article is related to my problem above, could you please explain it a little bit more?

Thanks,