- // don't redirect user to the deleted entry
- $to = ($url !== $request->headers->get('referer') ? $request->headers->get('referer') : null);
+ // don't redirect user to the deleted entry (check that the referer doesn't end with the same url)
+ $referer = $request->headers->get('referer');
+ $to = (1 !== preg_match('#'.$url.'$#i', $referer) ? $referer : null);