CORS error while on localhost

[kerepuki]

Hi,

I've been struggling to get this library setup. I have an SSO server on HTTPS and this is working fine however on the return url I am getting (failed)net::ERR_BLOCKED_BY_ORB and the URL is http://localhost/auth/broker/attach.php?callback=jQuery351009058101681690434_1715501228688&_=1715501228689

I'm running in Docker and I've set the header header("Access-Control-Allow-Origin: https://sso.server.com"); to allow CORS but it's still not working.

Any advice?

The intention is to use this combined with Slim for user authentication and ensure they can only use the client portals they have access to.

Thanks