Uhmm... OP is demonstrating an example using a JavaScript-based polyfill.<p>If we rejected every feature that began as mere polyfills, we wouldn&#x27;t have the web that we have today.<p>Here&#x27;s just a few examples: we would need images for rounded corners, Gif&#x2F;Flash&#x2F;JavaScript for animations, Cookies for storage, Flash for browser-based webcam calls, etc.