Hi, I've run into a slight problem while trying to configure mod_deflate
in Apache 2.0.x. I want to be able to use the content type of a document
to determine when compression should be enabled. I have this so far:
<Location />
<IfModule mod_deflate.c>
# Enable compression for text files
AddOutputFilterByType DEFLATE text/html text/plain text/xml
BrowserMatch ^Mozilla/4 gzip-only-text/html
BrowserMatch ^Mozilla/4\.0[678] no-gzip
BrowserMatch \bMSIE !no-gzip !gzip-only-text/html
</IfModule>
</Location>
This is what I want, sort of. I noticed that it was recommended to add
Vary: User-Agent in the response header for everything that qualifies
for compression, which in this case would be when the content type of a
document is of text/something. This could be accomplished by adding
<IfModule mod_headers.c>
# Make sure proxies don't deliver the wrong content
Header append Vary User-Agent env=!dont-vary
</IfModule>
after the BrowserMatch statements, but without being able to determine
when *not* to add Vary: User-Agent, everything sent from the server has
this header and not just potentially compressed documents. Basically, I
want to set the environment variable "dont-vary" only when the requested
document does *not* fall under the set of compressible documents; that
is if the content type of the document is *not* text/something (as shown
above), then I don't want to include Vary: User-Agent.
This wouldn't be a problem if SetEnvIf could match against the response
headers (using something like SetEnvIf Content-Type ..... dont-vary),
but this function does not have the ability to check the response
headers, only the request headers and globally defined environment
variables.
Is there another way to solve this problem? To summarize, Apache should
be configured to disable compression and the insertion of Vary:
User-Agent if the content type of the requested document isn't
text/something.
Thanks
---------------------------------------------------------------------
The official User-To-User support forum of the Apache HTTP Server Project.
See <URL:http://httpd.apache.org/userslist.html> for more info.
To unsubscribe, e-mail: [EMAIL PROTECTED]
" from the digest: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
