Path based routing not triggering login page

My application deployed on openshift has url as https://host:port/app/v1/hello/ We have configured openshift/oauth-proxy and it works great.

Now further we have requirement of Path based routing, like if URL has /app/v1 then redirect to different Service1 and if /app/v2 then to Service2

Here is the working example of our configuration,

`kind: Template
apiVersion: v1
metadata:
  name: deployment-template
objects:
  - apiVersion: v1
    kind: ServiceAccount
    metadata:
      name: my-service-account
      annotations:
        serviceaccounts.openshift.io/oauth-redirectreference.first: '{"kind":"OAuthRedirectReference","apiVersion":"v1","reference":{"kind":"Route","name":"my-route"}}'
  - apiVersion: v1
    kind: Service
    metadata:
      name: my-service
      annotations:
        service.alpha.openshift.io/serving-cert-secret-name: proxy-tls
    spec:
      selector:
        app: spring-boot-docker-openshift-hello-world
      ports:
        - name: api
          protocol: TCP
          port: 443 #Port the service listens on.
          targetPort: 8443 #Port on the backing pods to which the service forwards connections.
  - apiVersion: v1
    kind: Route
    metadata:
      name: my-route
    spec:
      port:
        targetPort: api
      path: "/"
      to:
        kind: Service
        name: my-service
      tls:
        termination: Reencrypt
  - apiVersion: apps.openshift.io/v1
    kind: DeploymentConfig
    metadata:
      labels:
        app: spring-boot-docker-openshift-hello-world
        version: 0.0.1-SNAPSHOT.1.dev
      name: spring-boot-docker-openshift-hello-world
    spec:
      replicas: 1
      selector:
        app: spring-boot-docker-openshift-hello-world
      strategy:
        rollingParams:
          timeoutSeconds: 3600
        type: Rolling
      template:
        metadata:
          labels:
            app: spring-boot-docker-openshift-hello-world
            version: 0.0.1-SNAPSHOT.1.dev
        spec:
          serviceAccount: my-service-account
          serviceAccountName: my-service-account
          containers:
          - name: spring-boot-docker-openshift-hello-world
            env:
              - name: KUBERNETES_NAMESPACE
                valueFrom:
                  fieldRef:
                    fieldPath: metadata.namespace
            image: pokarjm/spring-boot-docker-openshift-hello-world:0.0.1-SNAPSHOT.1.dev
            imagePullPolicy: IfNotPresent
            securityContext:
              privileged: false
            ports:
              - containerPort: 8080
                protocol: TCP
          - name: oauth-proxy
            image: openshift/oauth-proxy:latest
            imagePullPolicy: IfNotPresent
            ports:
              - containerPort: 8443
                name: public
            args:
              - --https-address=:8443
              - --provider=openshift
              - --openshift-service-account=my-service-account
              - --upstream=http://localhost:8080
              - --tls-cert=/etc/tls/private/tls.crt
              - --tls-key=/etc/tls/private/tls.key
              - --cookie-secret-file=/etc/proxy/secret/session_secret
              - --openshift-ca=/var/run/secrets/kubernetes.io/serviceaccount/ca.crt
              - --openshift-sar={"namespace":"spring-boot-docker-openshift-hello-world","resource":"services","name":"my-service","verb":"get"}
              - --request-logging=true
            volumeMounts:
              - mountPath: /etc/tls/private
                name: proxy-tls
                readOnly: true
              - mountPath: /etc/proxy/secret
                name: oauth-proxy-secret
                readOnly: true
          volumes:
            - name: proxy-tls
              secret:
                defaultMode: 420
                secretName: proxy-tls
            - name: oauth-proxy-secret
              secret:
                defaultMode: 420
                secretName: oauth-proxy-secret
      triggers:
        - type: ConfigChange
`

Now to support path based routing, that is map the request /app/v1 then redirect to Service1, I just added the Path in route like below,

`- apiVersion: v1
    kind: Route
    metadata:
      name: my-route
    spec:
      port:
        targetPort: api
      path: "/app/v1"
      to:
        kind: Service
        name: my-service
      tls:
        termination: Reencrypt`

but with this changes I can see a initial sign in page like below

but after clicking the button above instead of getting the openshift login page, I see below,

If I change the path in route to path: "/" it works and shows login screen. Appreciate any help on fixing path based routing in openshift/oauth-proxy.

openshift / oauth-proxy

Path based routing not triggering login page #189