istio: Content based routing not working

The following content based routing mostly taken from the documentation is not working

https://istio.io/docs/tasks/traffic-management-v1alpha3/request-routing.html

After passing the headers x-version: v2, there is no difference

apiVersion: networking.istio.io/v1alpha3
kind: VirtualService
metadata:
  name: vs
spec:
  hosts:
  - service.default.svc.cluster.local
  gateways:
  - mesh
  http:
  - match:
    - headers:
        x-version:
          exact: v2
    route:
    - destination:
        name: service.default.svc.cluster.local
        subset: v2
  - route:
    - destination:
        name: service.default.svc.cluster.local
        subset: v1

---
apiVersion: networking.istio.io/v1alpha3
kind: DestinationRule
metadata:
  name: dr
spec:
  name: service.default.svc.cluster.local
  subsets:
  - name: v1
    labels:
      version: v1
  - name: v2
    labels:
      version: v2