AjaxControlToolKit works locally but not on the server after publishing

I am using a RoundCornersExtender Ajax control with my Panel.  It works perfectly when running locally via the Visual Studio, but it does not do anything to the corners on the server.

I am running IIS8 on Windows 2012 R2.  There are no errors; it just does not do anything.  Do I have to do anything on the server side for the Ajax extensions to work?  I am sort of new to this so any help is greatly appreciated.