# File lib/capybara/node/matchers.rb, line 225
      def has_no_text?(content)
        synchronize do
          if Capybara::Helpers.normalize_whitespace(text).match(Capybara::Helpers.to_regexp(content))
            raise ExpectationNotMet
          end
        end
        return true
      rescue Capybara::ExpectationNotMet
        return false
      end