404 errors increased dramatically after 20 June 2024

[ozgurhangisi]

Hello,

We are a push provider company and we have lots of clients. Our old clients has so many (almost %40-50 of total subscribers ) 404 errors after 20 june 2024. We don't use firebase api, we directly send webpushes via VAPID. Does anyone experienced similar problem? We have no problem with new clients.

[Minishlink]

Hello, are these endpoints like https://fcm.googleapis.com/fcm/send ? Cf. https://firebase.google.com/support/faq?hl=fr#fcm-23-deprecation I would assume they didn't come back to the website and you didn't receive the new google endpoint?

[ozgurhangisi]

Hello, yes all of the chrome endpoints starts with https://fcm.googleapis.com/fcm/send.

But new endpoints also starts with https://fcm.googleapis.com/fcm/send. So Does that mean that all of our clients endpoints will be expired?

[Minishlink]

It doesn't look like it https://stackoverflow.com/questions/77957644/will-fcm-ditch-the-support-of-web-push-protocol
Maybe the 404s were a temporary regression on their side?

[ozgurhangisi]

https://pushpad.xyz/blog/fcm-returns-404-for-stale-push-subscriptions

This article explains why there are lots of expired endpoints. Google started to remove endpoints that doesn't have any signal in 90 days.