CORS is enabled but still some requests are failing with CORS error

The issue was because some of the additional headers added when making the request.
When the server is configured to have below as allowed headers, anything else will
Likely get into the CORS issue again.


References:
https://stackoverflow.com/questions/7067966/why-doesnt-adding-cors-headers-to-an-options-route-allow-browsers-to-access-my