Didn't work for me in Chromium, on Ubuntu 15.10.

Chrome 47.0.2526.80 on an 8-core Win7 desktop. Doesn't run.

Worked on Edge/WIP Tech preview and Nexus 5. I'm guessing it has more to do with the mobile phone than the desktop browser though. Desktop side should be pretty straightforward standards wise.

Correction: FF is not supported regardless of mobile phone, since it never gets to that point. Sad :(