It mostly worked nicely for me but crashed somewhere in datamanagement.nocache.js As a proof of concept demo is ok. However, it would be better to have a demo

It mostly worked nicely for me but crashed somewhere in datamanagement.nocache.js As a proof of concept demo is ok. However, it would be better to have a demo with the full interface even if some parts are not working so that you can demonstrate the full workflow. (Upload file - manipulate data for example throw away a row, choose statistic, plot save, print). Looks like is build using EXTJS are you using R for calcs?