Datasource Save and Test CORS Orgin error

How would I have NGINX around a service that I don’t own? Maybe I’m misunderstanding you.

Let’s say I’m calling nodequery’s API to see server stats. They own the API and Service, how could I control that? I’m calling the service fine via Postman and other 3rd party tools, but when I try with Grafana I get this CORS error. I fail to see it’s a “service” problem.

Thanks for all your help so far.