# File lib/capybara/poltergeist/web_socket_server.rb, line 70
    def start_server
      time = Time.now

      begin
        TCPServer.open(port)
      rescue Errno::EADDRINUSE
        if (Time.now - time) < BIND_TIMEOUT
          sleep(0.01)
          retry
        else
          raise
        end
      end
    end