Selecting a page using the arrow keys on the "Jump to Page" modal doesn't work on IE11

Steps to reproduce:

1. Go to any page and click on "Jump to any page in the wiki (Meta+G)"
2. Type "sand" in the text field -> some page suggestions will appear
3. Use the arrow keys and try to select a page

You don't have any visual feedback when using the arrow keys and if you hit Enter you'll get an error.