SignalR/SignalR — pull request #562 by NTaylorMullen (2012-07-25 20:00:45+00:00)
Title: Fixed #501

Fixed Connect/Disconnect events not firing in IE. Issue was browser
caching bug, but was fixed by setting the src tag of hte iFrame to
nothing.

https://github.com/SignalR/SignalR/issues/501