替换反向代理位置标头中的主机字符串

Question

我正在运行具有以下配置的反向代理：

server {
  listen 443 ssl http2;
  server_name proxy1.mydomain.net;

  location / {
    proxy_pass https://page1.host.com/;
    proxy_redirect https://page1.host.com/ https://proxy1.mydomain.com/;
    proxy_redirect https://page2.host.com/ https://proxy2.mydomain.com/;
    sub_filter 'page1.host.com' 'proxy1.mydomain.net';
    sub_filter 'page2.host.com' 'proxy2.mydomain.net';
  }
}

server {
  listen 443 ssl http2;
  server_name proxy2.mydomain.net;

  location / {
    proxy_pass https://page2.host.com/;
    proxy_redirect https://page1.host.com/ https://proxy1.mydomain.com/;
    proxy_redirect https://page2.host.com/ https://proxy2.mydomain.com/;
    sub_filter 'page1.host.com' 'proxy1.mydomain.net';
    sub_filter 'page2.host.com' 'proxy2.mydomain.net';
  }
}

这似乎正确地覆盖了绝对链接，但我无法让第 1 页和第 2 页之间的 302 起作用。例如，加载https://proxy1.mydomain.net/login返回

HTTP/2 302
server: nginx
location: https://page2.host.com/loginprocess

有没有办法重写location: https://page2.host.com/loginprocess到location: https://proxy2.mydomain.net/loginprocess？