Window autoSize is not working as expected when window elemnt size grow

[ajitkumarpes]

Hi, I am setting up window autoSize:true , it is working when element is less and it is fitting to the window, but when window contents is growing it is not showing scroll bar and window size is increasing and going beyond the screen. Mai i know how can i fix the maxHeight of window with autoSize:true.so that can see scroll bar if content is more.