Nginx 反向代理 Golang HTTP 报错

Nginx 反向代理 Golang HTTP 报错：

http: wrote more than the declared Content-Length 

Nginx 配置如下：

 location / { proxy_pass http://127.0.0.1:6003; proxy_set_header Host $http_host; proxy_set_header X-Real-IP $remote_addr; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; proxy_redirect off; } 

有哪位 v 友遇到过，该如何解决