{
if(log.isDebugEnabled())
log.debug("leave panel with action > pop stack");
PanelStack panelStack = Panel.getPanelStack(request);
panelStack.pop();
}
// fix backbutton problem of browser
ActionConfig actionConfig = mapping.getModuleConfig().findActionConfig(panel.getActivePage().getAction());
if(!this.isTokenValid(request) && !actionConfig.getInput().equals(mapping.getInput())) {