# File lib/html5/html5parser/in_body_phase.rb, line 319
    def startTagNew(name, attributes)
      # New HTML5 elements, "event-source", "section", "nav",
      # "article", "aside", "header", "footer", "datagrid", "command"
      # $stderr.puts("Warning: Undefined behaviour for start tag #{name}")
      startTagOther(name, attributes)
      #raise NotImplementedError
    end