Custom Domain w/ Route 53

Trying to point a subdomain of my site at an Obsidian Publish instance.

My domain is tightly wound around Route 53 so I need to add a subdomain pointed at my Publish install from there.

I followed everything from Custom domain setup with AWS Route53 and Cloudfront to a T, and my subdomain is redirecting to Obsidian Publish

I believe that setting the x-obsidian-custom-domain header (which I have done) should do the trick based on the above article as well as Set up a custom domain , but I’m just passing through to Obsidian site :frowning: