“Unsafe JavaScript attempt to access frame with URL…” error being continuously generated in Chrome webkit inspector

Question

Chrome (or any other webkit browser) throws a ton of these \"Unsafe JavaScript attempt to access frame with URL...\" when working with the Facebook API for example.

Answer 1

This happens when a source from an different domain is loaded and tries to access the document.cookie. It happens with head sources (script tags) as well with iframe documents which try to access the document.cookie for some reason.