class Bundler::Persistent::Net::HTTP::Persistent

def proxy= proxy
  @proxy_uri = case proxy
               when :ENV      then proxy_from_env
               when Bundler::URI::HTTP then proxy
               when nil       then # ignore
               else raise ArgumentError, 'proxy must be :ENV or a Bundler::URI::HTTP'
               end
  @no_proxy.clear
  if @proxy_uri then
    @proxy_args = [
      @proxy_uri.hostname,
      @proxy_uri.port,
      unescape(@proxy_uri.user),
      unescape(@proxy_uri.password),
    ]
    @proxy_connection_id = [nil, *@proxy_args].join ':'
    if @proxy_uri.query then
      @no_proxy = CGI.parse(@proxy_uri.query)['no_proxy'].join(',').downcase.split(',').map { |x| x.strip }.reject { |x| x.empty? }
    end
  end
  reconnect
  reconnect_ssl
end