Error occurs while closing extended kendoUI Window widget

[Faisal]

Hi,
I am trying to extend kendoUI's Window widget.
The widget extends and displays a window upon call. But when I try to close that window, error appears on console and window does not also close.

Please check the JS Fiddle at following URL:
http://jsfiddle.net/nxhPW/19/ 

On Firefox console error shows as following:
TypeError: K(b) is undefined           kendo.web.min.js (line 8)

On Chrome console error shows as following:
Uncaught TypeError: Cannot read property 'options' of undefined           kendo.web.min.js:8

Note: If you uncomment the close event handling code in my fiddle, it would work as expected.

Please can anybody tell me, what is wrong with this or is this a bug ?

Thanks

[Alex Gyoshev]

Hello Faisal,

This bug has already been fixed in the latest internal builds and will be part of all future releases.

All the best,
Alex Gyoshev
the Telerik team