test

                            std::cerr << "media: upstream stream error after "

                                      << ss->produced << "/" << ss->sendSize << " bytes" << std::endl;

                            ss->client.reset();

                            ss->sendSize = ss->produced;

                            return false;

                            // The client was already promised the original,

                            // larger Content-Length (set before streaming

                            // started). Shrinking sendSize to match what we

                            // produced so far would make the framework treat

                            // this as a clean finish, silently truncating the

                            // body. Throw instead so the transport aborts the

                            // stream/connection rather than lying about

                            // completion.

                            libhttppp::HTTPException err;

                            err[libhttppp::HTTPException::Error]

                                << "media: upstream stream error after "

                                << std::to_string(ss->produced) << "/"

                                << std::to_string(ss->sendSize) << " bytes";

                            throw err;

                        }

                        if(n > 0){

                            if(n > remaining) n = remaining;