    def html5lib_sanitize(node)
      case node.type
      when Nokogiri::XML::Node::ELEMENT_NODE
        if HTML5::Scrub.allowed_element? node.name
          HTML5::Scrub.scrub_attributes node
          return Scrubber::CONTINUE
        end
      when Nokogiri::XML::Node::TEXT_NODE, Nokogiri::XML::Node::CDATA_SECTION_NODE
        return Scrubber::CONTINUE
      end
      Scrubber::STOP
    end