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I am trying to set up mod_deflate to deliver compressed css/js/html content, but am having difficulty getting apache to send the 'content-encoding' header correctly.

I have tried the following, placed in my .htaccess file in the web root:

AddOutputFilterByType DEFLATE text/html text/plain text/xml application/x-javascript application/javascript text/javascript text/css application/xml

but, checking the headers using firebug, it doesn't appear to be working, even though it does on my local copy of MAMP.

Any ideas?

RobBerwick
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1 Answers1

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Which version of Apache are you using on your delivery server? I believe the AddOutputFilterByType is deprecated in versions > 2.1. However, you can still accomplish this, just a few more lines:

SetOutputFilter DEFLATE

SetEnvIf Request_URI "^" no-gzip
SetEnvIf Request_URI \.(?:css|js|html)$ !no-gzip

The DEFLATE filter, has a built-in check of the no-gzip environment variable. So, this is turning on the DEFLATE filter, then turning it off for everything, then turning it back on for css|js|html files by un-setting the no-gzip filter for those requests.

Hope that helps.

clmarquart
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