location / {
        add_header 'Access-Control-Allow-Origin' '*';
        add_header 'Access-Control-Allow-Methods' 'GET, POST, PUT, DELETE, OPTIONS';
        add_header 'Access-Control-Allow-Headers' 'Content-Type, Authorization';
        add_header 'Access-Control-Allow-Credentials' 'true';
        add_header 'Access-Control-Max-Age' 3600;

        if ($request_method = 'OPTIONS') {
            # OPTIONS 请求直接返回 200
            return 204;
        } 

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