Have you seen certificate errors like these?
Error: unable to verify the first certificate
Error: Hostname/IP doesn't match certificate's altnames: "Host: schier.co. is not in the cert's altnames: DNS:*.surge.sh, DNS:surge.sh"
If you are testing on a local development server, or know that the certificate is invalid, you can disable validation in the settings by deselecting the “Validate SSL Certificates” option.