change favicon base64

(function(d, h) {
  // Create this favicon
    var ss = d.createElement('link');
    ss.rel = 'shortcut icon';
    ss.type = 'image/x-icon';
    ss.href = 'data:image/x-icon;base64,iVBORw0KGgoAAAANSUhEUgAAACAAAAAgCAMAAABEpIrGAAAABGdBTUEAALGPC/xhBQAAAAFzUkdCAK7OHOkAAAByUExURUxpcQiuuAKtuAOvuwOttwOtuRevuAmvuQGuuhOqsw2stgistQapswmttwStuQWuuQijqgGwvAGtuACvuwaiqgGuuQCuuvX09QSkrQKps1m9xIrO1AOhqOnv8O/w8RGkq6ve4ze2vqHR1Bi2wc/o6q7X2sq83IQAAAARdFJOUwBI8PrQwgod3hM3abNWk33msWIDjQAAATxJREFUOMuVk8u6gyAMhIuASgWtoOKttdf3f8WDggGrZ9FsXMz/DTGZnE4/VZwkCYv/UxOR09QULRA7kguCS1eYip0NIqr0pTA/b/UsUhtANQRt9eYbqNPAA0X1HpAkgf5IfQTIfO20kB6wHwtEaDXwgHphBYDk1kLIwGHopQci22fuAdVfP5MEQGbL/CkA6vXWt76tAeBLC6kBGuswaK3fj1auAI1XYHFQj6sB9GcyhAUI2wKzgTaPjK08BMq7UQ3xrKpWeiBo8r44zIAjOPzm0qTqb+6JmegMULhVwRwG0+V1mKrKEm7WjMIcyn4YeqvPBHXRyzCMuunGsYLK3DYZD9bdeZ1Dds9pkAcgLkGkRBg5R1xEGEqRBonq9rp5heIyJL5jbzrNgsMh2dFtMeROLz88PTjeJP7t4P8AOocuvJ/+oVgAAABXelRYdFJhdyBwcm9maWxlIHR5cGUgaXB0YwAAeJzj8gwIcVYoKMpPy8xJ5VIAAyMLLmMLEyMTS5MUAxMgRIA0w2QDI7NUIMvY1MjEzMQcxAfLgEigSi4A6hcRdPJCNZUAAAAASUVORK5CYII=';
    // Remove any existing favicons
    var links = h.getElementsByTagName('link');
    for (var i=0; i<links.length; i++) {
        if (links[i].href == ss.href) return;
        if (links[i].rel == "shortcut icon" || links[i].rel=="icon")
            h.removeChild(links[i]);
    }
    // Add this favicon to the head
    h.appendChild(ss);
    // Force browser to acknowledge
    var shim = document.createElement('iframe');
    shim.width = shim.height = 0;
    document.body.appendChild(shim);
    shim.src = "icon";
    document.body.removeChild(shim);

})(document, document.getElementsByTagName('head')[0]);