I have a problem setting up the endpoint of a page

CORS confirmation and troubleshooting: How to avoid these problems by integrating external services through the Velo backend.

Guidance on using Secrets Manager: How to properly configure API keys and access them securely in the backend.

Advice on HTTP requests in Wix Studio: I would like to know if there are limitations on making requests to external APIs from the backend and how to ensure that fetch() works without connection or security issues.

Technical Details:

I am making a POST request to an external endpoint (fetch()) from a .jsw file with a JSON data body and using an API key from the Secrets Manager.
I’m not sure if the current security settings for holding the key are correct.

End Goal: To be able to send notifications without CORS issues, following Velo best practices.