我一直在面对这个问题很长一段时间，我的前端使用Nuxt 3，我的API使用Laravel 9，它们都在同一个服务器上。我的问题是，成功登录后，返回502坏网关，但当我重新加载浏览器，它工作正常。
Nuxt 3 nginx配置

server {
    listen 80;
    server_name maindomain.com;
    
    location / {

        proxy_pass http://127.0.0.1:3000;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection 'upgrade';
        proxy_set_header  Connection "keep-alive";
        proxy_connect_timeout            300s;
        proxy_send_timeout               300s;
        proxy_read_timeout               300s;
        send_timeout                     300s;
    }

   
}

字符串
Laravel API Nginx配置

server {
    listen 80;
    listen [::]:80;
    server_name api.maindomain.com;
    root /var/www/html/maindomain/backend/public;

    add_header X-Frame-Options "SAMEORIGIN";
    add_header X-Content-Type-Options "nosniff";

    index index.php;

    charset utf-8;

    location / {
        try_files $uri $uri/ /index.php?$query_string;
    }

    location = /favicon.ico { access_log off; log_not_found off; }
    location = /robots.txt  { access_log off; log_not_found off; }

    error_page 404 /index.php;

    location ~ \.php$ {
        fastcgi_pass unix:/var/run/php-fpm/www.sock;
        fastcgi_param SCRIPT_FILENAME $realpath_root$fastcgi_script_name;
        include fastcgi_params;
    }

    location ~ /\.(?!well-known).* {
        deny all;
    }

}

型
任何建议都非常感谢！