my set up is an app on github pages (GH) that calls a local rest api server to get data.
I can access the data from outside my office network via curl. The data is behind https.
But when the page from github pages tries to access the data, the browser console shows
Cross-Origin Request Blocked: The Same Origin Policy disallows reading the remote resource at https://xx.xx.xx.xx:3000/users/login. (Reason: CORS request did not succeed).
The server has CORS enabled (it is the loopback 4 framework that has CORS enabled by default). Is there anything I need to do in the app under GH?