Can I use a push service other than Google's GCM when using the new Push API with service workers?
Today, Chrome is the only browser that supports the standard push API so right now the short answer is No.
A longer answer involves doing different things for different browsers
- Safari offers desktop notifications via APNS and a proprietary API
- Firefox is shipping support for push notifications soon and presumably will use a different push server than GCM.
So to summarize, it seems that different combinations of Browser/OS will require different push servers. In the future there is an IETF draft (https://datatracker.ietf.org/wg/webpush/documents/) that should mitigate this. There are also companies working on abstracting these problems for a fee. Just search for web push notifications to get a few of them.
来源：https://stackoverflow.com/questions/33838004/is-it-possible-to-use-the-new-push-notifications-support-in-chrome-without-gcm