I had to look this up recently, but Tim Berners Lee specifically said that URIs should be treated more or less identically to files on disk. That would mean th

I had to look this up recently, but Tim Berners Lee specifically said that URIs should be treated more or less identically to files on disk. That would mean that accessing a web server that is hosting a static directory should return not found for missing files. But this was just a guideline and it was never followed in practice.