うーむ、

# for Apache 2.0 (original mod_deflate)
<IfModule !filter_module>
AddOutputFilterByType DEFLATE text/html text/plain text/css text/xml application/x-javascript
</IfModule>

# for Apache 2.2 (emulating mod_deflate for Snowman front-end servers)
<IfModule filter_module>
FilterDeclare deflate CONTENT_SET
FilterProvider deflate DEFLATE Content-Type /text\x2F\w+|application\x2Fx-javascript/
FilterChain deflate
</IfModule>

で、
GET /index.html HTTP/1.1
Accept-Encoding: gzip

は圧縮されるけど、
GET /livecx/index.html HTTP/1.1
Accept-Encoding: gzip

は、圧縮されないみたい。