# File lib/restclient/request.rb, line 90
    def make_headers user_headers
      unless @cookies.empty?
        user_headers[:cookie] = @cookies.map { |(key, val)| "#{key.to_s}=#{CGI::unescape(val)}" }.sort.join(';')
      end
      headers = stringify_headers(default_headers).merge(stringify_headers(user_headers))
      headers.merge!(@payload.headers) if @payload
      headers
    end