У вашего броузера проблема в совместимости с HTML5
In this small tutorial, I show you how to make a 2d maze using the maze command in magicavoxel :)
Created by Alex Voxel
https://twitter.com/AlexVoxel
https://alex-voxel.itch.io
Anachronist Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 3.0 License
http://creativecommons.org/licenses/by/3.0/