Ion-list Delete button does not work on Internet Explorer (windows devices)

Hi guys,

If I visit this link and try the delete button in the codepen, it won’t work on Internet Explorer:
http://ionicframework.com/docs/api/directive/ionList/

The same behavior is apparent when I build and emulate a cordova/ionic app as a Windows Store app.

Fortunately I can’t reproduce this error on Windows 10 / Edge.