Updated once more
More url fixes
Fixed name in a handling to support toc
wikipp compilation error
Session don't work
From your partial "sample" it seems that modifing session is the last thing you do. You can't change session values once output was generated: once you call response().out() - all headers (including session data) are generated.
Bug in multipart_parser.h, parse_pair
Thank you very much for this detailed bug report with accurate directions of fixing it. It was resolved in changeset 9f58f3822f355b48f33e45a7922c13269569f94b at github / master Feel free to reopen if anything is still wrong.