Cors error or 403 error when retrieving data

Using fetch to retrieve data. A plain fetch command receives a cors error. If I set mode to ‘no-cors’ I receive a 403 error.

The same request will work in Postman and retrieves the data.

Any thoughts?

A solution here, it worked for me : https://stackoverflow.com/questions/43871637/no-access-control-allow-origin-header-is-present-on-the-requested-resource-whe

Thanks! I will give that a try.