vscode 安装插件 [error] Download: net::ERR_CONNECTION_CLOSED

背景：

vscode安装扩展插件时报错，显示下载失败：
[error] Download: net::ERR_CONNECTION_CLOSED
[error] net::ERR_CONNECTION_CLOSED: Download: net::ERR_CONNECTION_CLOSED

解决方法：

查找相关文档发现这么一段：
If you are behind a firewall that needs to allow specific domains used by VS Code, here's the list of hostnames you should allow communication to go through:
猜测可能是防护墙的问题，关闭后问题解决。

链接：

Network Connections in Visual Studio Code