_handle_path_relative_redirect

# File actionpack/lib/action_controller/metal/redirecting.rb, line 327
      def _handle_path_relative_redirect(url)
        message = "Path relative URL redirect detected: #{url.inspect}"

        case action_on_path_relative_redirect
        when :log
          logger&.warn message
        when :notify
          ActiveSupport::Notifications.instrument("unsafe_redirect.action_controller",
            url: url,
            message: message,
            stack_trace: caller
          )
        when :raise
          raise PathRelativeRedirectError.new(url)
        end
      end