允许跨域请求
server {
    listen 80 ; 
    listen 443 ssl http2 ; 
    server_name 235421.xyz; 

    # 允许跨域请求
    add_header 'Access-Control-Allow-Origin' '*' always;
    add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS, PUT, DELETE' always;
    add_header 'Access-Control-Allow-Headers' 'Origin, X-Requested-With, Content-Type, Accept' always;
    
    index index.php index.html index.htm default.php default.htm default.html; 
    proxy_set_header Host $host; 
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; 
    proxy_set_header X-Forwarded-Host $server_name; 
    proxy_set_header X-Real-IP $remote_addr; 
    proxy_http_version 1.1; 
    proxy_set_header Upgrade $http_upgrade; 
    proxy_set_header Connection $http_connection; 
    access_log /www/sites/235421.xyz/log/access.log main; 
    error_log /www/sites/235421.xyz/log/error.log; 
    location ^~ /.well-known/acme-challenge {
        allow all; 
        root /usr/share/nginx/html; 
    }
    root /www/sites/235421.xyz/index; 
    error_page 404 /404.html; 
    if ($scheme = http) {
        return 301 https://$host$request_uri; 
    }
    ssl_certificate /www/sites/235421.xyz/ssl/fullchain.pem; 
    ssl_certificate_key /www/sites/235421.xyz/ssl/privkey.pem; 
    ssl_protocols TLSv1.3 TLSv1.2; 
    ssl_ciphers ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384:DHE-RSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-SHA384:ECDHE-RSA-AES128-SHA256:!aNULL:!eNULL:!EXPORT:!DSS:!DES:!RC4:!3DES:!MD5:!PSK:!KRB5:!SRP:!CAMELLIA:!SEED; 
    ssl_prefer_server_ciphers on; 
    ssl_session_cache shared:SSL:10m; 
    ssl_session_timeout 10m; 
    error_page 497 https://$host$request_uri; 
    proxy_set_header X-Forwarded-Proto https; 
    add_header Strict-Transport-Security "max-age=31536000"; 
}