Using SQL Server 2016 CTP3.2 Report Viewer (13.0.800.111), only the toolbar is shown.
It looks like a Power BI method is missing.
Also, wil
Was able to avoid this script error with the 2016 Report Viewer. Try adding these missing references before the Report Viewer definition.
Note: This will only work if your Report Server is on the same domain as your Website. You can also manually copy the files into your project and then serve them locally if your on a separate domain.