How to enable CORS for https using traefik

Traefik Traefik v2
, ,
1

I was able to enable cors for http url but not for https. Getting below error when requesting over https.

Access to XMLHttpRequest at 'https://foo.company.com/socket.io/?EIO=4&transport=polling&t=OPJurnL' from origin 'null' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.

Below is my ingress.yaml file for http request.

apiVersion: traefik.containo.us/v1alpha1
kind: Middleware
metadata:
  name: cors
  namespace: foo-ns
spec:
  headers:
    accessControlAllowMethods:
      - "GET"
      - "OPTIONS"
      - "PUT"
      - "POST"
    accessControlAllowOriginList:
      - "*"
    customResponseHeaders:
      X-Foo-Name: "foo"
---
apiVersion: traefik.containo.us/v1alpha1
kind: IngressRoute
metadata:
  name: foo-ingress
  namespace: foo-ns
spec:
  entryPoints:
    - web
  routes:
  - kind: Rule
    match: Host(`foo.company.com`)
    priority: 1
    middlewares:
    - name: cors
      namespace: foo-ns
    services:
    - kind: Service
      name: foo
      namespace: foo-ns
      port: foo-port

Below is my ingress.yaml file for https request.

apiVersion: traefik.containo.us/v1alpha1
kind: Middleware
metadata:
  name: cors
  namespace: foo-ns
spec:
  headers:
    accessControlAllowMethods:
      - "GET"
      - "OPTIONS"
      - "PUT"
      - "POST"
    accessControlAllowOriginList:
      - "*"
    customResponseHeaders:
      X-Foo-Name: "foo"
---
apiVersion: traefik.containo.us/v1alpha1
kind: IngressRoute
metadata:
  name: foo-ingress
  namespace: foo-ns
spec:
  entryPoints:
    - websecure
  routes:
  - kind: Rule
    match: Host(`foo.company.com`)
    priority: 1
    middlewares:
    - name: cors
      namespace: foo-ns
    services:
    - kind: Service
      name: foo
      namespace: foo-ns
      port: foo-port
  tls:
    domains:
      - main: company.com
        sans:
          - "*.company.com"
    secretName: my-cert

Not sure why the same middleware for cors configurations isn't working for https protocol. Kindly help.