Encoding capability isn't really a state in the HTTP sense,
since it is presumably an immutable characteristic of the server,
do you really know this? i could have an applet/script/application
which handles decoding of gz...
You are using an applet on the server to decode request entities sent from
the browser? Besides being very strange, why does that have any impact the
server's ability to honestly advertise it's services?
i think a survey of major sites and most web servers would be
appropriate (there are about 100 web servers [and don't forget to get
most deployed versions not just the latest and buggiest], have fun)
Are you saying that you think there is a web server that advertises support
for alternate decodings of content encodings in request entities, but then
doesn't support it? Can you think of what they might alternately have
intended by including the Accept-Encoding header?
Kris