The most of the functionality and demos in the documentation do not seem to work in IE11
Dialogs do not appear when buttons are clicked, root links do not action anything when clicked, expansion panels do not expand, drawers do not appear etc...
Link:
| Tech | Version |
|--------------|---------|
| Material-UI | v1.5.1 |
| React | v 16.4.0 |
| Browser | IE 11.0.9600 |
| OS | Win7 |
I have an app built on Material UI v1.5.1 with Dialogs and it all seems to be working fine in IE11. However it does seem that the material-ui.com site is not working too well in general on IE11. This might have something to do with it:

Are you seeing that your attempts to use a dialog or expansion panel within your own app are not working in IE11? If so can you post a codesandbox demonstrating the issue?
5 days ago: https://github.com/zeit/next.js/pull/4988.
Most helpful comment
5 days ago: https://github.com/zeit/next.js/pull/4988.