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/; }
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