Works perfectly in Chrome and Firefox here, but both browsers exhibit 30%+ CPU usage on a mid-2009 MBP. This is an outrageous figure that makes me wish NaCl gets standardized.
Interesting, it runs at about 4% to 5% CPU in Chrome here. Did you have the dev tools open? That seems to disable a lot of the JS optimizations that Chrome has.
Nope, just fired both browsers to test since I mainly use Safari those times.
I get 30% CPU usage while it's still downloading/buffering the file data, but once it's only decoding it settles down to 3-4%