jeecg-boot 3.6.2版本线上部署，验证码出不来，请大神指教

网站访问结果：

nginx相关配置

{
    listen 80;
    server_name a.baidu.com;
    index index.html index.htm default.php default.htm default.html;
    root /www/wwwroot/a.baidu.com;

    location / {
         # 用于配合 browserHistory使用
         try_files $uri $uri/ /index.html;
    }

    location  /jeecgboot/ {
                proxy_pass http://127.0.0.1:8089/jeecg-boot;
            proxy_redirect off;
            #真实IP获取
            proxy_set_header  Host             $host;
            proxy_set_header  X-Real-IP        $remote_addr;
            set $my_proxy_add_x_forwarded_for $proxy_add_x_forwarded_for;
            if ($proxy_add_x_forwarded_for ~* "127.0.0.1"){
               set $my_proxy_add_x_forwarded_for $remote_addr;
            }
            proxy_set_header   X-Forwarded-For $my_proxy_add_x_forwarded_for;
    }
}