This was a hack to deal with the Cloudflare check sometimes being slow or timing out during tests. The call to https://api.cloudflare.com/client/v4/ips could hang if there were IPv6 connectivity problems. If this happens, make sure that IPv6 is configured properly and that `curl -v --http1.1 -6 https://api.cloudflare.com/client/v4/ips` works.