Backend service access via cloud connector host
In cloud connector an access mapping is configured between the virtual and internal host:
The access to the backend service via cloud connector URL fails with 404 response code
https://<cloud connector host>:8443/sap/bc/rfc
It is the expected behaviour, the cloud connector offers a channel between the cloud platform and on-premise systems. The backend service is available through the cloud platform destination service, the cloud connector does not expose these services.
On-premise web server access via cloud connector
On SAP cloud platform an HTTP destination is configured to access an on-premise web server.
The requested page, however, contains links to the on-premise system, hence from the internet they cannot be reached.
It is the expected behaviour, the cloud connector provides a channel between the cloud platform and on-premise systems, it does not rewrite the URLs in the HTTP response.