var hrefSplit = window.location.href.split("?", 2);
          var domian = hrefSplit[0];
          var file = hrefSplit[1];

          if (file) {
            if (file.match(/^[a-z0-9+\/=]+$/i)) {
              file = b64_to_utf8(file);
            } else {
              // Hide the link in the url
              window.location.href = domian + '?' + utf8_to_b64(file);
            }
          } else {
            file = 'koalas0.jpg';
          }