docs: function xmlNodeToString(xmlNode) {
          try {
              // Gecko- and Webkit-based browsers (Firefox, Chrome), Opera.
              return (new XMLSerializer()).serializeToString(xmlNode);
          }
          catch (e) {
              try {
                  // Internet Explorer.
                  return xmlNode.xml;
              }
              catch (e) {
                  //Other browsers without XML Serializer
                  console.log('WARNING: XMLSerializer not supported');
              }
          }
          return false;
      }