Saving this before the google cache deletes it.
Quakelive has worked in chrome for quite a while now, it's jsut officially unsupported.
All you need to do to bypass the javacript check is go to quakelive.com, then in the address bar of your browser, clear the line, and then paste in :
and hit enter, then enter your login details.
Or you can just change your browser user agent to firefox temporarilly when you log in (This works for Chrome, or Opera 10.6 )
Alternatively using the firefox with the Prism extension is still a great way to play, or the Firefox 4 beta and nightly pre builds also work.