docs: function setContent(content) {
  
              if (content.nodeType !== undefined) {
                  that._content.innerHTML = '';
                  that._content.appendChild(content);
              } else {
                  that._content.innerHTML = content;
              }
  
  
              that._options.cache = true;
  
              /**
               * Event emitted when the content change.
               * @event ch.Content#contentchange
               * @private
               */
              that.emit('_contentchange');
  
              /**
               * Event emitted if the content is loaded successfully.
               * @event ch.Content#contentdone
               * @example
               * // Subscribe to "contentdone" event.
               * component.on('contentdone', function (event) {
               *     // Some code here!
               * });
               */
              that.emit('contentdone');
          }