Hey gents,
Appears that the certificate being used for the SSL on the site is missing an FQDN.
The CN and SAN of the certificate only includes
www.calgarypuck.com. That means that the redirect from calgarypuck.com (without the www) to
www.calgarypuck.com is intercepted due to 'calgarypuck.com' missing from the SANs.
I noticed that both the forum and the main site have individual certificates from Let's Encrypt. A way that would fix this and allow the site to use one certificate for all usages is a wildcard certificate (*.calgarypuck.com) which Let's Encrypt also offers.