У вашего броузера проблема в совместимости с HTML5
For some reason I decided to throw the 2200kv Castle brushless setup from my E-Revo in one of my Slash 4X4s, after test running it on a single 5000mah Sky Lipo 3s pack I was a bit disappointed so I figured I'd throw a pair of 4400mah Sky Lipo 3s packs in it to see what it would do...
It broke, lol.