We cannot continue to support Internet Explorer 11 any more, for the simple reason that Microsoft itself doesn’t want to support IE 11 any more.
All of Microsoft’s browser focus is on their Edge browser, which means that as newer HTML5 features and standards get adopted by the browsers, these are going to show up in Edge, not IE 11.
And since Kerika is a pure Web app, one that requires you to download no software of any kind, including browser add-ons and plug-ins, we really need to make use of the latest HTML5 goodies that the browser vendors provide.
These goodies are going to be available only on Chrome, Firefox, Safari and Edge, and that’s where Kerika is gong to work best.