  onLogoutClick: function() {
    // Sometimes the logout button is a bit close to the close-menu X button,
    // so better ask, in case clicked by accident.
    util.openDefaultStupidDialog({
      dialogClassName: 'e_ByeD',
      tiny: true,
      body: t.LogOut + '?',
      // + "[x] Log out from all devices"  — if there're other sessions as well
      primaryButtonTitle: t.YesBye,
      secondaryButonTitle: t.Cancel,
      onCloseOk: function(whichButton) {
        if (whichButton === 1) {
          debiki2.ReactActions.logout();
        }
      }
    });
  },
According to WASC, "Insufficient Session Expiration is when a web site permits an attacker to reuse old session credentials or session IDs for authorization."