Thinking about this again --

> can't tell how much of the GOAWAY is signaled by them or by the destination server.

If CloudFlare is in the middle as a proxy it's handling both ends as completely separate HTTP2 sessions. I do not think a GOAWAY from the origin will be passed through to the client. An origin GOAWAY would be received by the reverse proxy at CloudFlare and then it would restart the HTTP2 session and resume sending requests it has queued/buffered

*i think*...