}
			}
		}
	}

	namespace := ptr.OrDefault((*string)(to.Namespace), ns)
	var invalidBackendErr *ConfigError
	if nilOrEqual((*string)(to.Group), "") && nilOrEqual((*string)(to.Kind), gvk.Service.Kind) {
		// Service
		if to.Port == nil {
			// "Port is required when the referent is a Kubernetes Service."