Add cors plugin and headers for bulk (#403)

Co-authored-by: Somanath Hugar <[email protected]>

helm/g2p-sandbox/values.yaml

@@ -373,6 +373,9 @@ ph-ee-engine:
         konghq.com/protocol: "https"
     ingress:
       enabled: false
+      annotations:
+        konghq.com/plugins: cors
+        kubernetes.io/ingress.class: kong
       tls:
         - secretName: sandbox-secret
       hosts:
@@ -487,7 +490,7 @@ ph-ee-engine:
       enabled: false
       annotations:
         nginx.ingress.kubernetes.io/access-control-allow-origin: 'true'
-        nginx.ingress.kubernetes.io/cors-allow-headers: 'x-registering-institution-id'
+        nginx.ingress.kubernetes.io/cors-allow-headers: 'x-registering-institution-id, content-type, X-CallbackURL'
         nginx.ingress.kubernetes.io/cors-allow-methods: PUT, GET, POST, OPTIONS, DELETE
         nginx.ingress.kubernetes.io/cors-allow-origin: '*'
         nginx.ingress.kubernetes.io/enable-cors: 'true'

helm/ph-ee-engine/values.yaml

@@ -2001,7 +2001,7 @@ kong:
         credentials: true
         max_age: 3600
         exposed_headers :
-          - "X-Auth-Token"
+          - "*"
         preflight_continue: false
     - apiVersion: configuration.konghq.com/v1
       kind: KongClusterPlugin