@Override
    public boolean onContextMenuCommand(CefBrowser browser, CefFrame frame, CefContextMenuParams params, int commandId, int eventFlags) {
      if (isProperty(Properties.NO_CONTEXT_MENU)) {
        return false;
      }
      if (commandId == DEBUG_COMMAND_ID) {
        openDevtools();
        return true;
      }
      return false;
    }
@Override
    public boolean onContextMenuCommand(CefBrowser browser, CefFrame frame, CefContextMenuParams params, int commandId, int eventFlags)