13:41 <FromGitter> <636f7374> Hi guys, I have a problem, it seems that `OpenSSL::SSL::Context::Client` (`alpn_protocol=`) is not working, please help, Thanks. 🙏

13:42 <FromGitter> <636f7374> `require "openssl" ⏎ require "socket" ⏎ ⏎ destination_socket = TCPSocket.new host: "www.cloudflare.com", port: 443_i32, dns_timeout: 10_i32.seconds, connect_timeout: 10_i32.seconds ⏎ destination_socket.read_timeout = 10_i32.seconds ... [https://gitter.im/crystal-lang/crystal?at=622df4b79bd1c71eca9eac44]

13:46 <FromGitter> <636f7374> I don't see Extension: ALPN Protocol through Wireshark, but `OpenSSL::SSL::Context::Server` (`alpn_protocol=`) works.

13:48 <FromGitter> <636f7374> and It seems that `HTTP/1.1 400 Bad Request` is caused by missing `alpn_protocol`.

15:35 <FromGitter> <Blacksmoke16> pretty sure its setting it correctly

15:35 <FromGitter> <Blacksmoke16> try `pp destination_socket_context.alpn_protocol` after setting it to confirm

15:36 <FromGitter> <Blacksmoke16> er apparently there isn't a getter so just `pp destination_socket_context`

15:39 <FromGitter> <Blacksmoke16> oo maybe not...

15:40 <FromGitter> <Blacksmoke16> https://play.crystal-lang.org/#/r/cvuh would have expected this to print `"h2"`

15:55 <FromGitter> <Blacksmoke16> id file an issue for it

16:12 <FromGitter> <636f7374> @Blacksmoke16 Ok thanks, I'll submit an Issue later.

16:26 <FromGitter> <636f7374> #11895

16:28 <FromGitter> <Blacksmoke16> 👍 perfect

16:32 <FromGitter> <636f7374> :)