# File lib/kramdown/converter/html.rb, line 251
      def convert_a(el, indent)
        res = inner(el, indent)
        attr = el.attr.dup
        if attr['href'] =~ /^mailto:/
          attr['href'] = obfuscate('mailto') << ":" << obfuscate(attr['href'].sub(/^mailto:/, ''))
          res = obfuscate(res)
        end
        "<a#{html_attributes(attr)}>#{res}</a>"
      end