[Tabs] IE11 "Object doesn't support property or method 'isNaN'

• This is a v1.x issue (v0.x is no longer maintained).
• I have searched the issues of this repository and believe that this is not a duplicate.

Expected Behavior

When I put a Tabs component in my app, the page should load/work in IE11.

Current Behavior

The app crashes, ie. page turns white and error reported in console. (Seems to work ok in codesandbox, not sure why)

Steps to Reproduce (for bugs)

1. Create a new react app
2. Add material-ui/core v1.2.1
3. Add a Tabs component to the app
4. Run the app in IE11

OR

1. Visit https://material-ui.com/demos/tabs/ in IE11

Context

My app needs to support IE11 and uses the Tabs component as part of its UI.

Your Environment

Tech	Version
Material-UI	v1.2.1
React	v16.4.1
browser	Internet Explorer 11

[oliviertassinari]

Fixed in #11832