anchor.diff:                  [":", integer_to_binary(MyPort)]
           end,
           filename:join([
  -            maps:get(path, Opts, "/"),
  -            maps:get(external_path, Opts, "/")
  +            maps:get(external_path, Opts, "/"),
  +            maps:get(path, Opts, "/")
           ])
       ]),
       Ext2 = nklib_url:norm(Ext1),
  
positive.code:         nklib_util:to_binary(Transp), "://",
          case maps:get(external_host, Opts, <<>>) of
              <<>> ->
                  nklib_util:to_host(Ip);
              ExtHost ->
                  ExtHost
          end,
  
negative.code: 
  %% @private
  %% Generates key "external_url" for http transports
  %% Using external_host, external_port and external_path
  %% No final '/'
  resolve_external(#nkconn{transp=Transp}=Conn) when Transp==http; Transp==https ->
      #nkconn{ip=Ip, port=Port, opts=Opts} = Conn,
  