Log2viz dies after running for some hours

[jkakar]

I've been keeping a tab open with log2viz running for vault-usage and
noticed that it consistently dies after a few hours. I left it
running with a console open to see if I could get some useful details
which you can see in the attached screenshot. I'm running Firefox
19.0.2 on OS X 10.8.3.

[dominic]

Ah neat! The connection to the log drain is dropping, so it's trying to reconnect, but your OAuth token has expired.