def url_for(option)
      host = SermepaWebTpv.response_host
      path = SermepaWebTpv.send(option)

      return if !host.present? || !path.present?
      URI.join(host, path).to_s
    end
def url_for(option)
      host = SermepaWebTpv.response_host
      path = SermepaWebTpv.send(option)

      return if !host.present? || !path.present?
      URI.join(host, path).to_s
    end
Available options
 redirect_success_path
 redirect_failure_path
 callback_response_path