API request return cors-policy error (here maps)

I need to access the here maps API in order to query the geocode service, which given a text string returns me coordinates. I ran the procedure on the HERE portal created my app and got the codes to make my API call, testing with postman the query is successful and I get the desired response. When I move the logic to visual studio, and run a ketch call to the endpoint in question I get the error cors policy back.

The error occurs on both the development tunnel and localhost:
enter image description here
ERROR

Below is my fetch request to the server:
fetch from server

On the official documentation it is mentioned that the API here has the Access-control-allow-origin at * so I expect not to have to handle anything else code side… if I am wrong I speak from inexperience it is the first time I am confronted with this error…

documentazione here maps

Does anyone know how I can fix this error? Thanks in advance..