Has anyone managed to send a push notification from a Cloudflare Worker directly to APNS?

I’ve tried several times but have never succeeded. I don’t think Cloudflare Worker properly supports HTTP/2, which is required by APNS, but it’s baffling me, so I’m hoping someone has got it working.

@simonbs Have you looked into Google Firebase? You can definitely go from functions -> push notifications on that platform. I've been using it for Away Message.
@hoagie Yep, I don’t want to depend on Firebase.