Description

Element.closest is not supported in ie11 and this causes problem with widgets.
It's seems related to withScrollSpy and withResizeSpy enanchers.

In case of Bug (otherwise remove this paragraph)

Browser Affected
(use this site: https://www.whatsmybrowser.org/ for non expert users)

• Internet Explorer
• Chrome
• Firefox
• Safari

Browser Version Affected

• v11

Steps to reproduce

• open map 4093 in ie11

Expected Result

• map open and widgets are visible and working

Current Result

• widgets aren't working

Other useful information (optional):