parseHttpHeaders crash !!!

[MCSQNXA]

The parseHttpHeaders method in the IXWebSocketHttpHeaders class will result in a string truncation out of bounds error. The specific code is std::string value(lineStr.substr(start, lineStr.size() - start - 2)); There is a probability that specific issues may occur when iOS devices access HTTP services

[bsergean]

Would you care to make a PR for that?

I think someone merged or proposed a fix for this recently but I don't remember it ...