anchor.diff:           get_return_urls/1,
            get_service_data/1,
   
  +         show_rsa/1,
  +
            get_list/0
           ]).
   
  
positive.code:     session_return_urls(Session).
  
  session_return_urls(#watts_rsp_session{ referer=R, success_url=undefined,
                                         error_url=undefined }) ->
      {R, R};
  session_return_urls(#watts_rsp_session{ success_url=Succ,
                                          error_url=undefined }) ->
      {Succ, Succ};
  session_return_urls(#watts_rsp_session{ success_url=Succ,
                                          error_url=Err }) ->
      {Succ, Err}.
  
  
  
negative.code:           referer = undefined,
            success_url = undefined,
            failed_url = undefined,
            iss = undefined,
            sub = undefined,
            service_id = undefined,
  