I have a Chrome extension that needs to send data to a separate application I have running on Elastic Beanstalk via POST request. The POST endpoint itself is working fine via http, as confirmed using cURL.
However, given I am posting JSON data from a non-origin domain, the AJAX POST request is performed via https. This is causing the POST request to timeout, both from the Chrome extension and from cURL. I've done some research on how to change the CORS settings on the nginx server on Elastic Beanstalk, but I don't really know what I'm doing and kinda grasping at straws. How can I enable CORS on ELB/nginx?
NGINX instance working on EB machines are just proxying the request to your application and passing back the response to the client. You can set CORS headers in your application and that's it.