How cross browser is the ping attribute of anchor elements?

Question

is a relatively new, relatively unknown attribute in HTML5\'s anchor element.

How cross-browser compliant is it?

I\'ve looked

Answer 1

According to deanhume.com only Safari and Google Chrome supports it and maybe Firefox also supports it because in their documentation they are not flagged with the warning "This API has not been standardized." So W3Schools may be right :)