У вашего броузера проблема в совместимости с HTML5
Buy at https://www.shapeways.com/model/1226831/alternating-skewb.html Copyright (c) 2013, M. Oskar van Deventer. Alternating Skewb was requested by Bram Cohen at the Twisty Puzzles Forum after discussing Alternating Cube. It is a Skewb in which turns must alternate between clockwise and counter-clockwise. A geared flip-flop mechanism inside assures that every clockwise turn is followed by a counter-clockwise turn and vice verse.