Local Fallback for Google Web Fonts

Question

The HTML5 Boilerplate uses a script for loading a local copy of jQuery if, for whatever reason, the Google CDN version fails to load:

Answer 1

A client-side fallback calling a css file containing the call different fonts (here Tangerine font):

(function test($){
    var $span = $('').appendTo('body'); // span test creation
    if ($span.css('fontFamily') !== 'Tangerine'){
        $('head').append(''); // fallback link
    }
    $span.remove(); // span test remove
})(jQuery);