The web based chat client that broke earlier this week is now fixed. We had been using using a service called Mibbit (mibbit.com) to handle our Web Based IRC chat. The #qcubed channel is hosted on Freenode. It turns out that Freenode started blocking Mibbit, in favor of using Freenode's own web based IRC chat. I've swapped out the chat page to now use Freenode's chat, so everything should be ok now.