jQuery doesn't claim compatibility with IE6, they dropped it on jQuery 2.0 to IE8+: https://jquery.com/browser-support/ https://jquery.com/browser-support/ Umb

jQuery doesn't claim compatibility with IE6, they dropped it on jQuery 2.0 to IE8+: https://jquery.com/browser-support/ https://jquery.com/browser-support/ Umbrella JS supports Internet Explorer 11+, with some of the known bugs and wont-fix here: https://github.com/franciscop/umbrella#support-ie11 https://github.com/franciscop/umbrella#support-ie11 There is a polyfill to help here: https://github.com/franciscop/umbrella/blob/master/polyfill.js https://github.com/franciscop/umbrella/blob/master/polyfill....