Hi, In looking at the source for mod_deflate:
http://www.google.com/codesearch/p?hl=en#lfs-jRjrQ3s/trunk/modules/filters/mod_deflate.c&l=524 It appears to insert Vary Accept-Encoding header into every candidate response by default, which is what you would expect. But the instructions here: http://httpd.apache.org/docs/2.0/mod/mod_deflate.html suggest adding a line to manually add Vary Accept-Encoding to responses: # Make sure proxies don't deliver the wrong content Header append Vary User-Agent env=!dont-vary Is this "Header append Vary User-Agent env=!dont-vary" necessary or does mod_deflate now add the Vary Accept-Encoding header by default? Thanks, Bryan
