if err != nil {
			return false
		}
		return name < r.Name
	})

	// In Istio 1.5, it is not enough just to sort the routes.  The virtual hosts
	// within a route might have a different order.  Sort those too.
	for i := range drc {
		route := &route.RouteConfiguration{}
		err = drc[i].RouteConfig.UnmarshalTo(route)
		if err != nil {
			return nil, err
		}

		}
		stripPartial := strings.TrimSuffix(h, ".svc")
		if unique.Contains(stripPartial) && stripPartial != h {
			shouldDelete.Insert(h)
		}
	}
	// Filter from original list to keep original order
	ret := make([]string, 0, len(domains))
	for _, h := range domains {
		if !shouldDelete.Contains(h) {
			ret = append(ret, h)
		}
	}
	return ret
}