I have been testing the new improvements to the Add Data widget on WAB, I have tested with shapefiles, csv and geojson. The shapefiles and csv work good, however, the geojson uploads but don render.
Please as anyone else encountered same?
I don't understand your question Rick, I am using ArcGIS Online not portal, and adding shapefile works fine for me (make sure you zip all its related files together)
Yes aware of the zip requirements and the issues of coordinate conversion.
I am trying to get things to work on a local install of Portal and not have to federate the Portal with the Arc Server.