class Net::HTTP

def keep_alive?(req, res)
  return false if /close/i =~ req['connection'].to_s
  return false if @seems_1_0_server
  return false if /close/i      =~ res['connection'].to_s
  return true  if /keep-alive/i =~ res['connection'].to_s
  return false if /close/i      =~ res['proxy-connection'].to_s
  return true  if /keep-alive/i =~ res['proxy-connection'].to_s
  (@curr_http_version == '1.1')
end