Hi! > Sure, an app-dev could write a validation method, but I think 0-byte > is somewhat equal to "not submitted". > I don't think so. A 0-byte file is a valid file (might be a flag-file to trigger something). If you treat a 0-byte file as fake, what would you do with files with just one space.
I think a validator is the correct way to deal with, having a minFileSize=, or contentMimeType= etc. Ciao, Mario