У вашего броузера проблема в совместимости с HTML5
In this followup video I'll show some problems that I encountered with my power supply from the previous tutorial video and will show you how I fixed those.
It shows that even with the simplest project where "nothing can go wrong" you can't predict every problem that could happen.
High-Res Pictures are here:
http://jumperone.com/2011/08/lm317-psu-followup/
Other videos are here:
http://jumperone.com/