Hello, Chromium Version 49.0.2623.87 (64-bit) gives a ERR_CERT_COMMON_NAME_INVALID when accessing aur4.archlinux.org, it expects the url to be seemingly luna.archlinux.org. No way to workaround it.
I doubt AUR webmasters would change the SSL certificate to please Chromium devs. I just wish to give the information and read any relevant comments. Cheers.