Don't return a class name if no urlTemplate is provided
Don't return a class name if no urlTemplate is provided

raquel-ucl/cartodb,dbirchak/cartodb,bloomberg/cartodb,UCL-ShippingGroup/cartodb-1,future-analytics/cartodb,splashblot/dronedb,codeandtheory/cartodb,DigitalCoder/cartodb,codeandtheory/cartodb,UCL-ShippingGroup/cartodb-1,future-analytics/cartodb,thorncp/cartodb,nyimbi/cartodb,thorncp/cartodb,dbirchak/cartodb,dbirchak/cartodb,dbirchak/cartodb,CartoDB/cartodb,DigitalCoder/cartodb,dbirchak/cartodb,thorncp/cartodb,CartoDB/cartodb,CartoDB/cartodb,UCL-ShippingGroup/cartodb-1,nyimbi/cartodb,raquel-ucl/cartodb,future-analytics/cartodb,codeandtheory/cartodb,codeandtheory/cartodb,raquel-ucl/cartodb,splashblot/dronedb,bloomberg/cartodb,DigitalCoder/cartodb,future-analytics/cartodb,nuxcode/cartodb,splashblot/dronedb,UCL-ShippingGroup/cartodb-1,nyimbi/cartodb,CartoDB/cartodb,CartoDB/cartodb,bloomberg/cartodb,bloomberg/cartodb,thorncp/cartodb,DigitalCoder/cartodb,UCL-ShippingGroup/cartodb-1,bloomberg/cartodb,raquel-ucl/cartodb,codeandtheory/cartodb,DigitalCoder/cartodb,nyimbi/cartodb,nuxcode/cartodb,nyimbi/cartodb,thorncp/cartodb,splashblot/dronedb,nuxcode/cartodb,nuxcode/cartodb,future-analytics/cartodb,raquel-ucl/cartodb,nuxcode/cartodb,splashblot/dronedb