Overriding NextProtos can interfere with Application-Layer Protocol Negotiation or ALPN

[jmacelroy]

If a server, such as grpc, is trying to set an app protocol and uses this lib for the socket then it will be overridden by

go-connections/sockets/tcp_socket.go

Line 18 in 58542c7

tlsConfig.NextProtos = []string{"http/1.1"}

.

This was probably unnoticed until go 1.17 when enforcement became strict https://golang.org/doc/go1.17#ALPN