Back Link not working in IE11

[rymill2]

As the title suggests, I am not able to get the back link to slide the menu back to its previous state in IE11. The slide forward works, however.

[yliu2015]

I had the same issue in IE 11 and found out that this line of code causes the issue: in the slide-menu-ie.js, function "initSubmenus", s.classList.add(t.CLASS_NAMES.backlink, t.CLASS_NAMES.control). In IE 11, the add() only add one class to the class list so the t.CLASS_NAME.control didn't get added to the element. This is the only code that tries to add more than one classname to the element in the slide-menu-ie.js file. Change it to two separated code: s.classList.add(t.CLASS_NAMES.backlink), s.classList.add(t.CLASS_NAMES.control). That fixed my issue in IE 11. Hope this helps others who has the same issue.