I can confirm that it does NOT work in a browser running under Mac OSX (10.4.11). I was told that sometime after 10.2, they stopped maintaining compatibility. However, if you have one of the Intel Macs, it should work if you run Windows (with Bootcamp or Parallels, etc).
All my Macs are still running under PowerPC, so I don't have the luxury of using parallels. But, I have a P.O.S. PC lying around for just these purposes.