>>452
マニュアルのそのページ全部読んで試したかい？

Someone previously mentioned that MSIE doesn't cache gzipped content. This is false. He misread the source of information. In fact, IE will cache gzipped content no matter what. Here is the quote from the mailing list:

The reason the COMPRESSED responses are, in fact,
always getting cached no matter what "Vary:" field name
is present is just as I suspected... it is because MSIE
decides it MUST cache responses that arrive with
"Content-Encoding: gzip" because it MUST have a
disk ( cache ) file to work with in order to do the
decompression.

だそうだ。俺は試してないから知らんが。