Problem with exception being thrown within modal window

asked 2014-10-30 19:32:55 +0800

gsanmartin
25 ● 5

The problem I have is pictured in http://zkfiddle.org/sample/d81hea/3-DoModal-wth-Exception (this fiddle) I created:

If you click on the Order coffee button, I've forced a Runtime Exception to be thrown whithin the doAfterCompose method of the modal window's controller. As you can see the modal window gets appended at the bottom of the page. This, aside from being ugly, allows the user to click again the Order Cofee button, which causes the famous "Not unique ID in space" error.

Is there any way to prevent the window from being created when an Exception is thrown?