У вашего броузера проблема в совместимости с HTML5
Gentle Intro to ROS - Part 2 (Software Example) by Paul Bouchier.
This tutorial is part 2 of a two part series that introduces the ROS (Robot Operating System). It was presented at the Dallas
Personal Robotics Group on April 11, 2015.
The presentation materials can be found at:
https://dprgblog.files.wordpress.com/2015/04/2015marchrostalk-1.pdf