There is a heading in this article "Browser Compatibility" detailing the answer to this very question. Basically, Chrome, Firefox and Safari all support it on t

There is a heading in this article "Browser Compatibility" detailing the answer to this very question. Basically, Chrome, Firefox and Safari all support it on the desktop, Firefox and Blackberry support it on mobile. Other browsers may partially support it, or not at all. The article has a code snippet for checking for compatibility.