У вашего броузера проблема в совместимости с HTML5
Polyboard allows you to assemble elements of a project as you would in real life, which makes it much faster and more intuitive than a CAD drawing programme. These elements are often placed in libraries, which can then be pulled out and added to projects. This video looks at Polyboard's list of libraries, including Panel Materials, Edging, 3D Accessories and Hardware.
Find out more about what Polyboard's Quick Design libraries can do: https://wooddesigner.org/support/polyboard-videos/libraries/