I have a Button that shows a JS alert and then executes an AJAX call.
It works fine under Firefox 2, but fails under IE7.. The alert appears, I click "ok" and then I get the "Initiating Ajax GET request..." inside "WICKET AJAX DEBUG", but it doesn't reach my serverside handler.
Original discussion: http://www.nabble.com/Button-with-confirmation-with-IE7-td18944137.html
I'll add a quickstart and a patch in a moment.