Strange Problem with widgetsets


I am using widgetsets in my application. The application displays pie charts. When I run the application on the network connected to the internet, it works smoothly however, the pie charts are not displayed if the internet connection is not available. Is there a possibility that the widgetset .js file downloads some stuff from internet to make it run if something is wrong in the widgetset compilation? I hope I am clear enough. I am stuck with this, please help.