pac

// https://developer.mozilla.org/en-US/docs/Web/HTTP/Proxy_servers_and_tunneling/Proxy_Auto-Configuration_PAC_file
// application/x-ns-proxy-autoconfig
// https://linuxconfig.net/manuals/howto/squid-and-ldap-authentication-from-active-directory.html
function FindProxyForURL(url, host) {
  if (shExpMatch(host, "xyz*") && shExpMatch(url, "*:8123*")) {
    return "PROXY w3proxy.mozilla.org:8080";
  } else {
    return "DIRECT";
  }
}