render_html

# File actionpack/lib/action_dispatch/middleware/public_exceptions.rb, line 50
      def render_html(status)
        path = "#{public_path}/#{status}.#{I18n.locale}.html"
        path = "#{public_path}/#{status}.html" unless (found = File.exist?(path))

        if found || File.exist?(path)
          render_format(status, "text/html", File.read(path))
        else
          [404, { "X-Cascade" => "pass" }, []]
        end
      end