rider中使用127.0.0.1访问正常，用域名访问就跨域，一般是哪里设置不对

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2025-05-22 11:53

127.0.0.1不会出现跨域，域名出现跨域是很常见的情况。如果部署外网用域名访问，有两种方式：
一、后端接口的nginx配置反向代理

    location /api {
        
        # 隐藏后端返回的 CORS 头部
        proxy_hide_header 'Access-Control-Allow-Origin';
        proxy_hide_header 'Access-Control-Allow-Methods';
        proxy_hide_header 'Access-Control-Allow-Headers';
        proxy_hide_header 'Access-Control-Allow-Credentials';
        proxy_hide_header 'Access-Control-Expose-Headers';
        proxy_hide_header 'Access-Control-Max-Age';
        
        # 所有非OPTIONS请求的CORS头部
        add_header 'Access-Control-Allow-Origin' '*';
        add_header 'Access-Control-Allow-Methods' 'GET, POST, PUT, DELETE, OPTIONS' always;
        add_header 'Access-Control-Allow-Headers' 'DNT,X-Requested-With,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Range,Authorization,token,Blade-Auth,Blade-Requested-With,Tenant-Id' always;
        add_header 'Access-Control-Allow-Credentials' 'true' always;
        add_header 'Access-Control-Expose-Headers' 'Content-Length,Content-Range' always;
        
        
        # 处理OPTIONS预检请求
        if ($request_method = 'OPTIONS') {
            add_header 'Access-Control-Allow-Origin' '*';
            add_header 'Access-Control-Allow-Methods' 'GET, POST, PUT, DELETE, OPTIONS' always;
            add_header 'Access-Control-Allow-Headers' 'DNT,X-Requested-With,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Range,Authorization,token,Blade-Auth,Blade-Requested-With,Tenant-Id' always;
            add_header 'Access-Control-Max-Age' 3600;  # 预检请求的缓存时间
            add_header 'Content-Length' 0;
            add_header 'Content-Type' 'text/plain charset=UTF-8';
            return 204;  # 返回204响应，表示成功，但不返回数据
        }
        
        # 原来的代理配置
        proxy_redirect              off;
        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_pass                  http://127.0.0.1:8800/;
    }

二、rider部署的时候，对应的nginx代理到本地

    location /api {
        proxy_redirect              off;
        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_pass                  http://xxx.com/;
    }

rider中 使用127.0.0.1访问正常，用域名访问就跨域，一般是哪里设置不对

rider中使用127.0.0.1访问正常，用域名访问就跨域，一般是哪里设置不对