I'm using a url shortner (custom hosted yourls) to redirect to a html page on azure blob storage. It works on a browser but when I do a GET without headers (I need this), it gives me an error.
I have set on CORS on azure storage to allow everything already

I tested with test-cors.org and it gives me
Sending GET request to https://yourls.com/testurl
Fired XHR event: loadstart
Fired XHR event: readystatechange
Fired XHR event: error