anchor.diff:              musiklistan:add_playlist_to_user(Playlist, Username),
               #{response      => <<"">>,
                 extra_headers => "Location: /playlists\r\n",
  -              return_code   => "301 PERMANENT REDIRECT"}
  +              return_code   => "302 FOUND"}
       end.
   
   handle_pl_post(Data, _Parameters, Headers) ->
  
positive.code:     playlist_create(Username, PlaylistName),
      #{response      => <<"">>,
        extra_headers => "Location: /playlists\r\n",
        return_code   => "301 PERMANENT REDIRECT"}.
  
  handle_register_post(Data, _Parameters, _Headers) ->
      PostParameters = http_parser:parameters(Data),
  
negative.code:             musiklistan:leave_list(Username, ListId),
              #{response      => <<"">>,
                extra_headers => "Location: /playlists\r\n",
                return_code   => ""}
      end.
  
  handle_logout(_, _, Headers) ->
  