Those would be different URIs, and thus different URLs, and thus have different caching policies. URIs (and in turn URLs) must be consistent for caching to app

Those would be different URIs, and thus different URLs, and thus have different caching policies. URIs (and in turn URLs) must be consistent for caching to apply. Consider: https://foo/a.txt != http://foo/a.txt just like the obvious case of https://foo/b.txt != http://bar/c.txt All of those are considered unique URIs.