Django 使用zscaler作为反向代理的nginx web服务器

我有一个在Django上运行的网站，Nginx作为Web服务器，Redhat8操作系统。到目前为止，该网站运作良好。现在，我们正试图在nginxweb服务器前面放置一个反向代理。但我的身份验证失败，并显示一条错误消息

Forbidden (403)
CSRF verification failed. Request aborted.

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我所了解的是，当请求通过反向代理传递时，CSRF cookies设置不正确。 但是，当在没有反向代理的情况下访问同一URL时，它会有一个cookie。 下面是我的nginx.config文件，供您参考

upstream app_server {
    server unix:/run/gunicorn.sock fail_timeout=0;
}
server {
    listen 443 ssl default_server;

    ssl on;
    ssl_certificate /etc/httpd/ssl/portal_com.pem;
    ssl_certificate_key /etc/httpd/ssl/portal_com.key;
    server_name portal.company.com;  # <- insert here the ip address/domain name
    ssl_protocols TLSv1.1 TLSv1.2 TLSv1.3;

    keepalive_timeout 5;
    client_max_body_size 4G;

    access_log /home/Project/logs/nginx-access.log;
    error_log /home/Project/logs/nginx-error.log;

    proxy_connect_timeout   20;
    proxy_send_timeout     20;
    proxy_read_timeout     20;
    send_timeout           20;
    client_body_timeout    20;

    location /static/ {
        alias /home/project/static/;
    }


    location /media/ {
        alias /home/Project/media/;
        
    location / {
        try_files $uri @proxy_to_app;
    }

    location @proxy_to_app {
      proxy_set_header X-Forwarded-Host $host;
      proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;

      proxy_set_header Cookie $http_cookie;
      proxy_set_header Host $http_host;
      proxy_set_header X-Real-IP $remote_addr;
      proxy_redirect off;
      proxy_pass http://app_server;
      proxy_connect_timeout   20;
      proxy_send_timeout      20;
      proxy_read_timeout      20;
      send_timeout            20;
      client_body_timeout     20;
    }
}

上游应用程序服务器{
服务器unix:/run/gunicorn.sock失败\u超时=0；
}
服务器{
侦听443 ssl默认_服务器；
ssl-on；
ssl_certificate/etc/httpd/ssl/portal_com.pem；
ssl\u证书\u密钥/etc/httpd/ssl/portal\u com.key；
server_name portal.company.com；#使用该指令。