/**
  * Returns the full url Gems should forward to after survey completion.
  *
  * This fix allows multiple sites with multiple url's to share a single
  * installation.
  *
  * @return string
  */
 protected function calculateReturnUrl()
 {
     $currentUri = $this->util->getCurrentURI();
     /*
             // Referrer would be powerful when someone is usng multiple windows, but
             // the loop does not always provide a correct referrer.
             $referrer   = $_SERVER["HTTP_REFERER"];
     
             // If a referrer was specified and that referral is from the current site, then use it
             // as it is more dependable when the user has multiple windows open on the application.
             if ($referrer && (0 == strncasecmp($referrer, $currentUri, strlen($currentUri)))) {
                 return $referrer;
                 // \MUtil_Echo::track($referrer);
             } // */
     // Use the survey return if available.
     $surveyReturn = $this->loader->getCurrentUser()->getSurveyReturn();
     if ($surveyReturn) {
         // Do not show the base url as it is in $currentUri
         $surveyReturn['NoBase'] = true;
         // Add route reset to prevet the current parameters to be
         // added to the url.
         $surveyReturn['RouteReset'] = true;
         // \MUtil_Echo::track($currentUri, \MUtil_Html::urlString($surveyReturn));
         return $currentUri . \MUtil_Html::urlString($surveyReturn);
     }
     // Ultimate backup solution for return
     return $currentUri . '/ask/forward/' . \MUtil_Model::REQUEST_ID . '/' . urlencode($this->getTokenId());
 }