Internet Explorer error - Bahmni demo

Login on https://demo.mybahmni.org throws error on IE - Reference Error - Promise is undefined whereas works perfectly fine on Chrome. Screenshot attached.

Bahmni is only supported on Chrome and Safari (IPad). We test Bahmni in these two browsers only. We recommend you to use Chrome on desktop.

As @ajjaswanth mentioned, we only support & test for Chrome, and all our current client locations are using this browser. https://bahmni.atlassian.net/wiki/display/BAH/System+Requirements

I hope that is OK for you?