最新代码下载运行没有关闭所有标签的功能了

代码下载后本地运行其他都正常,但是却唯独没有演示后台关闭所有标签和关闭其他标签的功能了，请问作者是什么原因呢

线上后台：

本地运行：

No source file, test, or entry point is named. Reproduce the local run and compare the tab controls with the online example shown in the screenshots, then trace the admin tab behavior. Done means local runs provide working controls for closing all tabs and closing other tabs.

Written by the indexing model from the issue text.