react-map-gl Cross-Origin Request does not succeed, not found?

Question

I'm setting up a map in react-map-gl however after providing my access token I am getting the following console error:

Cross-Origin Request Blocked: The Same Origin Policy disallows reading the remote resource at https://events.mapbox.com/events/v2?access_token=TOKEN. (Reason: CORS request did not succeed). Status code: (null).

I had installed react-map-gl with

npm install --save react-map-gl mapbox-gl

Now i look at it, it seems to not be working on any service that uses Mapbox, including the samples page.

Any ideas?

Thanks!