Re:#1 CSRF Is A Vulnerability In All Browsers
by tptacek on Saturday March 31, 2012 @12:27AM
(#3779350)
Neal addressed XFO downthread:
http://news.ycombinator.com/item?id=3778700
Read his comment. It's great.
What about the X-Frame-Options and Origin headers? They are browser-based mechanisms that hint server side, right?
(not for the classic POST case though...)