Tomcat Compression Does Not Add a Content-Encoding: gzip in the Header

Posted by Julien Chastang on Stack Overflow See other posts from Stack Overflow or by Julien Chastang
Published on 2009-02-15T00:06:14Z Indexed on 2010/06/12 4:53 UTC
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I am using Tomcat to compress my HTML content like this:

<Connector port="8080" maxHttpHeaderSize="8192"
maxProcessors="150" maxThreads="150" minSpareThreads="25"
maxSpareThreads="75" enableLookups="false" redirectPort="8443"
acceptCount="150" connectionTimeout="20000" disableUploadTimeout="true"
compression="on" compressionMinSize="128" noCompressionUserAgents="gozilla, traviata"
compressableMimeType="text/html"
URIEncoding="UTF-8" />

In the HTTP header (as observed via YSlow), however, I am not seeing

Content-Encoding: gzip

resulting in a poor YSlow score.

All I see is

HeadersPost
Response Headers
Server: Apache-Coyote/1.1
Content-Type:   text/html;charset=ISO-8859-1
Content-Language:   en-US
Content-Length: 5251
Date:   Sat, 14 Feb 2009 23:33:51 GMT

I am running an apache mod_jk Tomcat configuration.

How do I compress HTML content with Tomcat, and also have it add "Content-Encoding: gzip" in the header?

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