On Oct 3, 2007 7:20 AM, Henrik Nordstrom <[EMAIL PROTECTED]> wrote: > > deflates the contents. Rationale: a weak ETag promises > > equivalent but not byte-by-byte identical contents, and > > that's exactly what you have with mod_deflate. > > I disagree. It's two very different entities.
As before, I still don't understand why Vary is not sufficient to allow real-world clients to differentiate here. If Squid is ignoring Vary, then it does so at its own peril - regardless of ETags. The problem with trying to invent new ETags is that we'll almost certainly break conditional requests and I find that a total non-starter. Your suggestion of appending ";gzip" leaks information that doesn't belong in the ETag - as it is quite possible for that to appear in a valid ETag from another source - for example, it is trivial to make Subversion generate ETags containing that at the end - this would create nasty false positives and corrupt Subversion's conditional request checks. Plus, rewriting every filter to append or delete a 'special' marker in the ETag is bound to make the situation way worse. -- justin
