For background, that file is source /app/data/env in the start.sh so it has to be a valid shell script. Such a behavior is happening in many apps, not sure how to document this or if we can add some extra trimming/filtering for such cases?

Thanks @girish - I didn't see those earlier. Commented on them now. 🙂 Guess this can be marked as Solved, as it seems overall this may not be a feature in the product yet (not without a lot of manual customizations on individual pages anyways).