Cannot extend folders in sharepoint 2013
I've created web application using visual studio 2012 then i have deployed in sharepoint 2013 using master page now some features not working properly in that i have Upload Document button if i click that it will show for Browse folder and Destination folder in destination folder if i enter any drive it will show the files/folders in that particular drive.But now when i enter some drive its not showing folders its working for Physical drives(C and D) but not mapped drives i am using IE can anyone suggest me how to solve this do i need to change any code or setting.Thanks