[Nginx] nginx 解决跨域问题嵌入第三方页面

# A 的 url
http://localhost/
# B 加后缀的 url
http://localhost/three-part
# B 的实际 url
http://172.16.1.1/

upstream mir{
  server 10.1.128.58:80;
}
server {
 listen   localhost:8001; # nginx 需要监听的 url及对应的端口
 location =/static/mir.min.js {
  root C:/r9/bin/resources;
 }
 location / {
  # 可以理解为这里用了一个 url 的变量名，这个变量名定义在 upstream 中
  proxy_pass http://mir;
  # 下面几项算是跨域标配，直接抄上就行
  proxy_set_header Host $http_host;
  proxy_set_header X-Real-IP $remote_addr;
  proxy_set_header X-Fonwarded-For $proxy_add_x_forwarded_for;
  if ($request_method = 'OPTIONS') {
   return 204;
  }
 }
 # 静态资源放行
 location ~ \.(gif|jpg|jpeg|css|js|svg)$ {
  proxy_pass http://mir;
  proxy_set_header Host $http_host;
  proxy_set_header X-Real-IP $remote_addr;
  proxy_set_header X-Fonwarded-For $proxy_add_x_forwarded_for;
  expires 30d;
 }
 # 添加跨域请求头
 add_header 'Access-Control-Allow-Origin' '*';
 add_header 'Access-Control-Allow_Credentials' 'true';
 add_header 'Access-Control-Allow-Headers' 'Authorization,Accept,Origin,DNT,X-CustomHeader,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Content-Range,Range';
 add_header 'Access-Control-Allow-Methods' 'GET,POST,OPTIONS,PUT,DELETE,PATCH';
 #error_page  404        /404.html;
 
 # redirect server error pages to the static page /50x.html
 # 配置常规的友好错误提示页
 error_page   500 502 503 504  /50x.html;
 location = /50x.html {
  root   html;
 }
 
}