if wh.ClientConfig.URL != nil {
				u, err := url.Parse(*wh.ClientConfig.URL)
				if err != nil {
					return nil, fmt.Errorf("parsing webhook URL: %w", err)
				}
				if isMCPAddr(u) {
					return parseMCPAddr(u)
				}
				port := u.Port()
				if port == "" {
					port = "443" // default from Kubernetes
				}
				return &xdsAddr{host: net.JoinHostPort(u.Hostname(), port)}, nil
			}
		}
	}