RE: [PHP] CSRF attack not possible in I.E. 6.01 SP1?

[snip] I am working on securing an application that uses CDSSO (Cross Domain Single Sign On). I am trying to reproduce the CSRF (Cross Site Request Forgery) attack (using <img/> TAG) in I.E. 6.01, but am unable to do so. However the attack works on Mozilla and other older browsers. My question: Is I.E. 6.01 SP1 doing something to foil the CSRF attack, i.e. only allow image extensions .gif .png .jpeg????? [/snip] You would have to ask the Microsoft Development Group, who probably does not subscribe to this list. Crossposting is bad. Being OT during a crosspost is even worse. I can hear the falmethrowers warming up in the wings. FYI -> This is (or use to be) a PHP list