contenteditable div with autogrow does not work in IE 11

[SaulFein]

I am trying to use autogrow with a contenteditable div and it works fine with Chrome and Firefox but I so far cannot seem to get it to work with IE11.

[evyros]

@SaulFein originally, it doesn't suppose to work with contenteditable, however, seems like it's easy to pick. I'll update this issue in the next few days. Thanks!

[SaulFein]

We will test it a ton of if you are able to come up with a fix. Thanks!