У вашего броузера проблема в совместимости с HTML5
An alternative to wearing two bracelets, you can split part of the bracelet to create two strands joined at either end by square knots. This bracelet was made with hemp cord, but you could use any cord material you preferred. It's fastened with braided tie on ends, but you could do a different fastening if you wanted to.
This bracelet tutorial should suit most skill levels, but if you are a beginners to macrame knotting, i recommend practising the basics [particularly square knots and hitch knots] before attempting this pattern, to avoid frustion/disappointment.