Bugfix for xdataweb.py.
Bugfix for xdataweb.py.

mathstuf/tangelo,aashish24/tangelo,mathstuf/tangelo,ecohealthalliance/tangelo,aashish24/tangelo,Kitware/tangelo,mathstuf/tangelo,ecohealthalliance/tangelo,aashish24/tangelo,Kitware/tangelo,Kitware/tangelo,ecohealthalliance/tangelo