code: func (u *URI) Normalize() string {
  	scheme := u.scheme
  	index := strings.Index(scheme, "+")
  	if index >= 0 {
  		scheme = scheme[:index]
  	}
  	return fmt.Sprintf("%s://%s:%d", scheme, u.host, u.port)
  }
docs: // Normalize returns the address in a form usable by a HTTP client.