I was trying it in Opera. A chromium based browser that always had WebGL as far as I know. Even the previous version had optional WebGL (so user agent blocking would not made sense either). So unless this code was written 5 years ago, it&#x27;s useless. And even if it was, it&#x27;s obviously badly written and useless as well.<p>&gt; well aware of the mess that is browser detection<p>It&#x27;s a mess because people use it for other things than statistics. &quot;Use IE5+&quot; era apparently taught developers absolutely nothing.