I would like to report an issue (I think it is one) about jQuery.UI.resizable.

If you use a resizable(son) inside a resizable (parent) ,

If you resize the son to the border of the parent, you cannot resize it anymore.
The parent container receive the event and not the child.

You can test it here :  http://jsfiddle.net/Br5HM/1/

Thanks for reading!