У вашего броузера проблема в совместимости с HTML5
This is a brief tutorial on how to install BLTouch on Bigtreetech SKR 1.3
Required Hardware:
1- BigTreetech SKR 1.3
1- BLTouch
3 - male to female Jumper wires
Software:
Marlin Firmware 2.0.x
http://marlinfw.org/meta/download/
Installing PlatformIO on Atom for Marlin Firmware
http://marlinfw.org/docs/basics/install_platformio.html
Pronterface:
https://www.pronterface.com/