enable additionalCORSAllowedOrigins for application routes coming through openshift-ingress

1. Proposed title of this feature request
enable additionalCORSAllowedOrigins for application routes coming through openshift-ingress
2. What is the nature and description of the request?
customer has publicly facing routes which has different domain than normal one for their application, but it is facing CORS error. It is working for OCP 3 for customers but not in OCP 4 seems some kind of security restriction.
3. Why does the customer need this? (List the business requirements here)
most of the customers usually have publicly facing routes which has different domain than normal one so need to add some exception so that it will allow the url redirection.

4. List any affected packages or components.
haproxy/router/ingress