We reference assets by full URL of the branch deploy so that the next deploys don’t result in a chunk load error, as per the suggestion in Chunk load error when deployed (Hydrogen, Gatsby, etc.) - #2 by hrishikesh
The issue here is that the actual branch deploy URL (the full efd71cdb0dc1a44896b93c0eb2a6371334fd014b--siteline-staging-admin.netlify.app domain, which is the link on the “open branch deploy” button in the netlify dashboard), is not loading at all. The DNS is not resolving.
However I believe I just found out why: the URL is too long. Alias is not fitting within the 37char requirement. We’re also not validating that the alias starts with a letter. I’ll try to fix this and update this thread.