      def call(exception, locale, key, options)
        if exception.is_a?(MissingTranslation)
          options[:rescue_format] == :html ? exception.html_message : exception.message
        elsif exception.is_a?(Exception)
          raise exception
        else
          throw :exception, exception
        end
      end
The software does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.