У вашего броузера проблема в совместимости с HTML5
If you are having trouble with the dials on your guard-a-key lock box, keep applying downward pressure throughout the code-changing process and the dials will loosen up.
Maintaining downward pressure works for any issues you may be having with the dials, whether it's that they won't spin, they spin on their own as you're resetting the code, or that the code doesn't change even after you've changed the dials and followed all of the other directions correctly. It's best to do this on a flat surface so you can maintain the downward pressure.