Unable to use chat in internet explorer.
1. Deploy the chat plugin
2. Add a second user called User1
3. Using Firefox, log in as Test
4. Using IE, log in as User1
5. With User1 in IE, click at "Online Friends (#)"
The expected behavior is that a box should expand to show the list of friends who are online. However, nothing happens when you click on "Online Friends (#)". This was reproduced with IE8 and IE9, but unable to reproduce in IE7.
The issue is not reproduced when you aren't using the SO hook and/or it isn't deployed.