# File lib/mini_profiler/client_settings.rb, line 30
      def write!(headers)
        if @orig_disable_profiling != @disable_profiling || @orig_backtrace_level != @backtrace_level || @cookie.nil?
          settings = {"p" =>  "t" }
          settings["dp"] = "t"              if @disable_profiling
          settings["bt"] = @backtrace_level if @backtrace_level
          settings_string = settings.map{|k,v| "#{k}=#{v}"}.join(",")
          Rack::Utils.set_cookie_header!(headers, COOKIE_NAME, :value => settings_string, :path => '/')
        end
      end