1. 重定向

1.1 proxy_pass

302跳转，不能传递原来请求的header

server {
    listen       80;
    server_name  a.example.com;
    listen       443 ssl;
  
    location = /xx {
        proxy_pass http://b.example.com/xx;
        proxy_set_header Host b.example.com;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $remote_addr;
        break;
    }
}

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