Nginx 中根据 $upstream_status 的值，设置返回给浏览器的响应的头部为啥不生效？或者说怎么根据 upstream 服务器的响应码来设置 Nginx 对浏览器响应的头部？

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NGINX Modules

› ngx_echo

This topic created in 3298 days ago, the information mentioned may be changed or developed.

server 配置：

server {
    listen		80;
    server_name		insist.com www.insist.com;
    root		/var/www/insist.com;
    index		index index.html index.htm index.nginx-debian.html;

    location = /django {
	return 302 /django/;
    }

    location /django/ {
        proxy_pass http://127.0.0.1:8000/;
	proxy_redirect / /django/;
	set $expire_time "20s";
	if ($upstream_status = 301){ set $expire_time "40s"; }
	expires $expire_time;
    }

搜索了几个小时没找到完美解决方案，请各位帮忙看一看多谢了，多谢了！

1 replies • 2022-03-17 14:24:23 +08:00

xuexb

Mar 17, 2022

我也遇到这个问题了，使用以下方向解决：

```nginx
# 30x 重定向不缓存
error_page 301 302 307 = @redirect_nocache;
location @redirect_nocache {
add_header Cache-Control 'no-store';
return 302 $upstream_http_location;
}

location @nodejs {
proxy_pass http://nodejs$request_uri;
proxy_intercept_errors on; # 重要
...

# 后台页页不加缓存
if ($uri !~* ^/admin/) {
add_header Cache-Control 'max-age=600, s-maxage=604800';
}
if ($uri ~* ^/admin(/|/.*)?$) {
add_header Cache-Control 'no-store';
}
}
```