Is it safe to use $.support.cors = true; in jQuery?

Question

I was trying to hit a web service on a different domain using jQuery\'s ajax method. After doing some research it looks like it does not allow this is by design to prevent

Answer 1

It can help only if you have CORS enabled in your browser but it isn't supported by jQuery yet:

To enable cross-domain requests in environments that do not support cors yet but do allow cross-domain XHR requests (windows gadget, etc), set $.support.cors = true;. CORS WD

Just setting this property to true can't cause security vulnerability.