如何解决VSCode本地下载vscode-server时的XHR错误

通过SSH连接远程主机时，VSCode在远程端下载vscode-server失败后，尝试本地下载服务端文件再通过SSH复制到远程，但过程中出现XHR错误。VSCode输出及开发者工具报错如下：

VSCode输出日志：

> Trigger local server download
> 8d402d7e9ae2:trigger_server_download
> artifact==cli-alpine-x64==
> destFolder==/home/rschmidtner/.vscode-server==
> destFolder2==/vscode-cli-af28b32d7e553898b2a91af498b1fb666fdebe0c.tar.gz==
> 8d402d7e9ae2:trigger_server_download_end
> Waiting for client to transfer server archive...
> Waiting for /home/rschmidtner/.vscode-server/vscode-cli-af28b32d7e553898b2a91af498b1fb666fdebe0c.tar.gz.done and vscode-server.tar.gz to exist
>  
[14:17:21.193] Got request to download on client for {"artifact":"cli-alpine-x64","destPath":"/home/rschmidtner/.vscode-server/vscode-cli-af28b32d7e553898b2a91af498b1fb666fdebe0c.tar.gz"}
[14:17:21.193] Downloading VS Code server locally...
[14:17:21.332] Terminating local server
[14:17:21.333] Exec server for ssh-remote+scedge01 failed: Error: XHR failed
[14:17:21.334] Error opening exec server for ssh-remote+scedge01: Error: XHR failed
[14:17:21.336] Local server exit: 15

开发者工具报错：

ERR XHR failed: CodeExpectedError: XHR failed
    at ee.rb (vscode-file://vscode-app/Applications/Visual%20Studio%20Code.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:2718:21055)
    at async ee.qb (vscode-file://vscode-app/Applications/Visual%20Studio%20Code.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:2718:20332)
    at async ee.Ob (vscode-file://vscode-app/Applications/Visual%20Studio%20Code.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:2719:11484)
    at async ee.jb (vscode-file://vscode-app/Applications/Visual%20Studio%20Code.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:2718:17969)

已确认代理域名和端口正确，调整VSCode代理设置无效，本地安装扩展无XHR错误，求解决方法。

• 手动下载并上传vscode-server文件

  1. 从报错日志提取版本号af28b32d7e553898b2a91af498b1fb666fdebe0c和目标架构cli-alpine-x64
  2. 手动下载对应tar.gz文件，通过SCP上传到远程主机的/home/rschmidtner/.vscode-server/目录
  3. 远程主机进入该目录，执行解压命令：tar -xzf vscode-cli-af28b32d7e553898b2a91af498b1fb666fdebe0c.tar.gz
  4. 创建完成标记文件：touch vscode-cli-af28b32d7e553898b2a91af498b1fb666fdebe0c.tar.gz.done
  5. 重启VSCode后重新连接远程主机

• 调整VSCode代理细节配置

  1. 打开VSCode设置，搜索http.proxyStrictSSL并设置为false，绕过SSL证书验证
  2. 确认http.proxy和https.proxy配置正确，若代理需认证，补充http.proxyAuthorization字段
  3. 添加代理排除规则："http.proxyExclude": ["*.code.visualstudio.com"]，让VSCode直接访问服务器域名

• 重置远程SSH扩展状态

  1. 关闭VSCode，删除本地~/.vscode/extensions/ms-vscode-remote.remote-ssh-*目录下的缓存文件
  2. 删除远程主机/home/rschmidtner/.vscode-server/目录下所有文件
  3. 重新打开VSCode，重装Remote SSH扩展后尝试连接

• 排查本地网络限制

  1. 检查本地防火墙是否阻止VSCode访问update.code.visualstudio.com
  2. 切换网络环境（如从内网换为个人热点），排除网络策略限制

内容的提问来源于stack exchange，提问作者zwithouta