QUIC connection could not be established

[findmyname]

Also I forget to mention that I added SSL protocols into
/etc/nginx/nginx.conf.
```
        ssl_protocols TLSv1.1 TLSv1.2 TLSv1.3;
        ssl_prefer_server_ciphers on;
```

To avoid any confusions - I'm getting http2 response when using http2 in
listen stanza.
I'm getting http/1.1 if there isn't http2 defined.

Posted at Nginx Forum: https://forum.nginx.org/read.php?2,292896,292898#msg-292898