C4C: Re-Enable HTML5 client
Most C4C users are certainly aware that SAP has switched off HTML5 with the 1911 release and that it is - according to SAP - "technically impossible" to re-enable HTML5 from 1911 onwards.
I did have some doubts if a) that is really true (it's "only" a frontend) or if that was just to encourage customers to switch to Fiori (which they should - takes some getting used to, but I've come to like it better) and b) if it is a good idea to make it technically impossible to switch back as they will have certainly forgotten some features.