# File lib/nokogiri/xml/node.rb, line 371
      def to_html encoding = nil
        # FIXME: this is a hack around broken libxml versions
        return dump_html if %w[2 6] === LIBXML_VERSION.split('.')[0..1]

        serialize(encoding, SaveOptions::FORMAT |
                            SaveOptions::NO_DECLARATION |
                            SaveOptions::NO_EMPTY_TAGS |
                            SaveOptions::AS_HTML)
      end