Apple Web Push API doesnt work with HTTP/2

Hello,

i try to send a Web Push Notification to my Safari Webbrowser and use the "http2" Module from Node.js

Every other Browser is able to receive my messages. I got the message "BadJwtToken" but when i use the same Authorization Key with a HTTP/1.1 Request, i got a Message on Safari.

Is there a Problem with the API when i use the HTTP/2 Protocol? Has anybody the same Problem?

I send exactly the same Headers and as i said other Push APIs from Mozilla,Chrome and Microsoft e.t.c. are working with my HTTP2 Client.