Did you setup OneSignal to send Web Push Notifications? The discourse-onesignal plugin should only be used for iOS notifications, the screen above with the “Service Worker 404” error does not look like an iOS issue.
So, if you’re trying to set up OneSignal for an iOS app, the first step is good (installing the discourse-onesignal plugin), but the second step should be to start setting up the app according to the instructions in the repository at https://github.com/pmusaraj/discourse-mobile-single-site-app
¿qué sistema conecta el player-id de OneSignal con el userid en Discourse?
He buscado, pero en mi lista de usuarios en OneSignal no hay datos sobre el usuario de Discourse, y en Discourse no he podido encontrar ninguna referencia al usuario de OneSignal.