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  // reset scaling on iPads on orientation change. author: @axolx
  if (navigator.userAgent.match(/iPad/i)) {
    $(window).bind('orientationchange', function(event) {
    if (window.orientation == 90 || window.orientation == -90 || window.orientation == 270) {
        $('meta[name="viewport"]').attr('content', 'height=device-width,width=device-height,initial-scale=1.0,maximum-scale=1.0');
        $(window).resize();
    } else {
        $('meta[name="viewport"]').attr('content', 'height=device-height,width=device-width,initial-scale=0.8,maximum-scale=0.8');
        $(window).resize();
    }
    }).trigger('orientationchange');  
}