don't reply to http requests after server has stopped listening
don't reply to http requests after server has stopped listening

prozacchiwawa/bittorrent-tracker,LinusU/bittorrent-tracker,precisit/bittorrent-tracker,feross/bittorrent-tracker,jhiesey/bittorrent-tracker,jhiesey/bittorrent-tracker,feross/bittorrent-tracker