特定浏览器打开web项目出现Network Error问题

• 部署项目之后出现谷歌和火狐浏览器使用localhost:8081不能访问,会出现如下报错,但是使用http://127.0.0.1:8081可以访问

 Network Error (tcp_error) 

A communication error occurred: "Operation timed out"
The Web Server may be down, too busy, or experiencing other problems preventing it from responding to requests. You may wish to try again at a later time.

For assistance, contact your network support team.

• 上面使用edge浏览器不会存在此问题,两个都可以访问

• 我的host文件已经修改