I am trying to implement a pop up for all IE browsers to encourage a browser update to edge or other compatible browsers. I have designed with flex box and certain important features such as a donation section using a donor box widget do not seem to work on IE.
I have implemented a code from https://browser-update.org in my custom code section/header code but on IE 11 the pop up is still not displaying. What am I doing wrong?
Thanks for your help.