what makes CORS hard to use?
@b0rk I think people can get stun locked when they see request failed along with '200 OK' in the browser console.
On the flip side, when the service that you're doing CORS requests to goes down and returns 5xx errors, it often stops including the headers. This means there are *also* CORS errors in the console and makes people think that's where the issue lies and not the fact the service is simply down.

