Could you clarify? There is no “includes” convention in ColdBox.
Are these files that the web browser are requesting directly? (.js, .css, .jpg) or files such as .cfm’s which are being cfincluded in your ColdFusion code.
A web server virtual directory or alias will work for the former, but a CF mapping will always be required if you want the CF server to be able to find something outside the web root. (With the possible exception of a fully qualified file path [C:\webites\files\common\file.cfm], or something relative to the web root [expandPath("/…/…/…/common/file.cfm")] but neither of those approaches are very flexible.)
Thanks!
~Brad