nginx http2 pictures timeout

[JoakimR]

Having same issue using http2 both on my image and reverse proxy (both
nginx) the backend is running on sata disk and the proxy on ssd disk....
this is why the setup is as is like this. 

With http2 enabled i get some weird signs, but disabling http2 makes things
run...

So I follow this thread :)

Posted at Nginx Forum: https://forum.nginx.org/read.php?2,265430,265679#msg-265679