I have simple php application, it works on all browsers except on IE8 beta 2, problem occurs when I try to update table field using Ajax call (jQuery post method). Using IE8
I had the same problem in IE8 RC1:
1)a user goes to the login page and a blank session cookie is set
2)The user logs in and a validated session cookie is set and javascript opens a new window and closes the current window.
3)The new window is opened and contains a blank session cookie.
4)The user is redirected to the login page
I changed step 1 so that the blank cookie was not set - I only send the session cookie if its been validated. This fixed the problem for me.