I am attempting to deploy a Backstage Docker image to Heroku. Once I release it onto my app in Heroku, I get the following errors (see image attached). I don't see any references to localhost in either app-config.yaml or app-config.production.yaml, so I'm not sure where it's grabbing that information from. I HAVE rebuilt the image and pushed it multiple times to try different configurations. Not sure if something might be cached?
I've also attached a screenshot of my app-config.production.yaml file.