virtual-service-rev-proxy.yml

apiVersion: networking.istio.io/v1beta1
kind: VirtualService
metadata:
  name: rev-proxy
spec:
  hosts:
    - {{ YOUR_API_HOSTNAME_HERE }}
  gateways:
      - istio-gateway
  http:
    - match:
        - uri:
            prefix: /
      route:
        - destination:
            host: rev-proxy.dev.svc.cluster.local
            port:
              number: 80
          weight: 100
      corsPolicy:
        allowOrigin:
          - {{ YOUR_UI_HOSTNAME_HERE }}
        allowMethods:
          - OPTIONS
          - GET
        allowCredentials: true
        allowHeaders:
          - "*"