Someone actually just submitted a pull request to fix this on Github, which is now merged :-) I just cloned the source and compiled it successfully on Debian,

Someone actually just submitted a pull request to fix this on Github, which is now merged :-) I just cloned the source and compiled it successfully on Debian, and it all seems to work alright (I can't get hello_world.cc to crash.) If it happens again, could you possibly get me a stack trace? By the way, if you look at the cookie output code: for(Map::Item * Current = Client.Cookies.First; Current; Current = Current->Next) if(strcmp(Current->Value, Client.Input.Cookies.Get(Current->Key))) Socket << "\r\nSet-Cookie: " << Current->Key << "=" << Current->Value; The strcmp() line checks the value of the cookie when received from the browser (Client.Input.Cookies) against the value of the cookie with any modifications (Client.Cookies).