Protecting Your Cookies: HttpOnly

HttpOnly cookies don't make you immune from XSS cookie theft, but they raise the bar considerably. It's practically free, a "set it and forget it" setting that's bound to become increasingly secure over time as more browsers follow the example of IE7 and implement client-side HttpOnly cookie security correctly. If you develop web applications, or you know anyone who develops web applications, make sure they know about HttpOnly cookies.originated from, so there is no cross-domain posting of the cookies.