This will show you how to password protect your WebWalk
You may get a message that says that your graphics card does not support WebGL. More specifically the WebWalk platform is referring to the max texture size. In many cases we've noticed that most computers do support the max texture size but that their computer (in most cases a laptop) is configured to use a less powerful graphics card when running on a battery. Try plugging in your computer to see if your computer switches to a more powerful graphics card. If you're still stuck you can also go to: http://doesmybrowsersupportwebgl.com/ The URL above will help you diagnose any issues you might be having with WebGL.