docs: function stored(err) {
          if (err) { return self.error(err); }
  
          var parsed = url.parse(self._userAuthorizationURL, true);
          parsed.query.oauth_token = token;
          if (!params.oauth_callback_confirmed && callbackURL) {
            // NOTE: If oauth_callback_confirmed=true is not present when issuing a
            //       request token, the server does not support OAuth 1.0a.  In this
            //       circumstance, `oauth_callback` is passed when redirecting the
            //       user to the service provider.
            parsed.query.oauth_callback = callbackURL;
          }
          utils.merge(parsed.query, self.userAuthorizationParams(options));
          delete parsed.search;
          var location = url.format(parsed);
          self.redirect(location);
        }