我在 Discourse iOS 应用（非 Discourse 托管）中收到推送通知

[Falco]

On iOS the app has a fallback to polling for updates in the background. It’s isn’t push notifications (that are instantaneous) and subject to the OS scheduler (to save battery) but they do happen.

@sam

Sites we do not host do not get “push notifications” we have to whitelist every site for push notifications and give them a magic URL to push to. They get “fake” push notifications on background fetch, but no real ones.