I was able to access the website after turning off my Ad Block (adblocker extension on chrome). The color was purple-tinted. I was not able to move. I tried on-screen controls and my arrows keys.

I do think this is worthwhile for those who cannot or do not want want to download a viewer. Also I wonder that it might be very useful in moments when one's viewer will not work or SL is having viewer issues - to at least be able to let others know you are having issues and are unable to access SL