anchor.diff:  
   login_redirect_uri() ->
     mtc:get_env(url, "http://metalkia.com") ++ "/facebook".
  +
  +main() ->
  +  ?DBG("Code: ~p", [wf:q(code)]),
  +  wf:redirect(mtc:get_env(url, "http://metalkia.com")).
  
positive.code: -export([
    app_id/0,
    data_perms/0,
    login_redirect_uri/0
  ]).
  
  -include_lib("nitrogen_core/include/wf.hrl").
  
negative.code:   RequestBridge = simple_bridge:make_request(webmachine_request_bridge, Req),
    ResponseBridge = simple_bridge:make_response(webmachine_response_bridge, Req),
    nitrogen:init_request(RequestBridge, ResponseBridge),
  
    [nitrogen:handler(Handler, PageModule) ||
    Handler <- [
        mt_session_handler,
        mt_security_handler,
        mt_route_handler,
        mt_identity_handler
    ]],
  
    PostParams = RequestBridge:post_params(),
    ?DBG("POST Params:~n~p", [PostParams]),
  
    GetParams = RequestBridge:query_params(),
    ?DBG("GET Params:~n~p", [GetParams]),
  
    PathInfo = wrq:path_info(Req),
    wf_context:path_info(PathInfo),
  