Many many thanks for checking it out. Unfortunately I have had a lot of trouble with Webgl builds myself. I am definitely doing something wrong since this is the only one I have gotten to be able to run in ages, but just can't narrow down whats causing the problem yet.
Anyhow, I am glad you had some fun with it. If you have got the time, there is a download version on the page too which might have better performance.
Thanks again.