if err != nil {
				return nil, err
			}
			vs.Mirrors = append(vs.Mirrors, mirror)
		case k8s.HTTPRouteFilterURLRewrite:
			vs.Rewrite = createRewriteFilter(filter.URLRewrite)
		default:
			return nil, &ConfigError{
				Reason:  InvalidFilter,
				Message: fmt.Sprintf("unsupported filter type %q", filter.Type),
			}
		}
	}

	if r.Timeouts != nil {