Support basic authentication for access to published reports on the report server. Apparently, this functionality isn't supported, but we require this functionality at our hospital in order to move ahead with adopting PowerBI instead of Tableau.
I originally inquired about this feature in the article at http://community.powerbi.com/t5/Report-Server/Issues-with-Power-BI-report-server-and-Basic-Authentication/m-p/336030#M3324