Hello all!
I'm trying to understand RFC-7540 and I hope you could tell a little bit more about how to implement https connection preface (page 11 of this doc). May be, I could get this info in C code of particular open project? But now I don't understand what this doc part means (what data I will send). Please, help. Thank you. The RFC https://tools.ietf.org/pdf/rfc7540.pdf.