text: window.addEventListener('DOMContentLoaded', () => {
      let DC = DualCommander,
          dual_commander;
  
  
      DC.urlconf.prefix = '/02-open-at-my-documents-a';
  
      dual_commander = new DC.DualCommanderView({
          'panel_left': {'el': '#panel_left'},
          'panel_right': {'el': '#panel_right'},
          // we start here with dual history disabled
          'dual_history': false
      });
  
      dual_commander.open({
          left: {commander: true, folder: {id: 4}}
      });
  });