Kindly review and merge to Master, and upload to the Server as well.
Leave Duration computation was affected because of Date functions incompatibility issues with Internet Explorer 11. I changed the logic of Date manipulation, without the use of advanced Date functions.
Tested this new approach in IE 11, Edge, Chrome, Firefox and Opera. Working fine with those browsers.
chaikp
commented
5 years ago 
Kindly review and merge to Master, and upload to the Server as well.
Leave Duration computation was affected because of Date functions incompatibility issues with Internet Explorer 11. I changed the logic of Date manipulation, without the use of advanced Date functions.
Tested this new approach in IE 11, Edge, Chrome, Firefox and Opera. Working fine with those browsers.