App must be served over HTTPS. Your app URL's host is invalid

[Chadnewbry]

App submission automated failure:

https://greeting-card-magic.fly.dev/

I followed the docs here:

https://shopify.dev/docs/apps/store/security/tls-certificates

Still getting this error. Using fly.io for hosting. Any

[JMalan]

Did you ever fix this? Running into the same issue