code: function(_event){
              var _data = _event.data;
              if (_data.indexOf(_flag)!=0) return;
              _data = JSON.parse(_data.replace(_flag,''));
              var _proxy = _cache[_data.key];
              if (!_proxy) return;
              delete _cache[_data.key];
              _data.result = decodeURIComponent(_data.result||'');
              _proxy.__onLoadRequest(_data);
          }
docs: receive message