CORS

Applying ingress.kubenretes.io/enable-cors annotation in ingress enables CORS for all HTTP Frontend.

apiVersion: voyager.appscode.com/v1beta1
kind: Ingress
metadata:
  name: test-ingress
  namespace: default
  annotation:
    ingress.kubernetes.io/enable-cors: 'true'
spec:
  rules:
  - host: foo.bar.com
    http:
      paths:
      - backend:
          serviceName: s1
          servicePort: '80'
  - host: bar.foo.com
    http:
      paths:
      - backend:
          serviceName: s2
          servicePort: '80'

Applying the annotation in ingress will have the following effects, will add the CORS Header in the response.

$ curl -v -X 'GET' -k -H 'Origin: foo.bar.com' 'http://foo.bar.com'
 HTTP/1.1 200 OK
 Date: Mon, 02 Oct 2017 12:31:00 GMT
 Content-Length: 280
 Content-Type: text/plain; charset=utf-8
 Access-Control-Allow-Origin: foo.bar.com
 Access-Control-Allow-Methods: GET, HEAD, OPTIONS, POST, PUT
 Access-Control-Allow-Credentials: true
 Access-Control-Allow-Headers: Origin, Accept, X-Requested-With, Content-Type, Access-Control-Request-Method, Access-Control-Request-Headers, Authorization

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