* @cfg {Boolean} fitwindow default false
* @cfg {Number} width fixed width - usefull for chrome extension only really.
* @cfg {Number} height fixed height - usefull for chrome extension only really.
* @cfg {Boolean} fitwindow default false
* @cfg {Number} width fixed width - usefull for chrome extension only really.
* @cfg {Number} height fixed height - usefull for chrome extension only really.