On 09/14/2011 02:58 PM, Arvid Piehl Lauritsen Böttiger wrote:
Hello

I think I have a very strange problem. I'm trying to use ext_filter to
rewrite some contenton the fly from apache.
...
I am quite lost here because I have no idea what is going on.
...


Firefox and other browsers will (most likely) send an "Accept-Encoding: gzip,deflate"-header, which causes your data to be compressed before server sends it to the client.

Regular GET requests will show this difference, by appending the proper headers as such:
$ GET http://sn.im/v3luh | grep -Ei "201. P"
    <p>2012 PSI</p>

$ GET -H "Accept-Encoding: gzip,deflate" http://sn.im/v3luh | zgrep -Ei "201. P"
    <p>2011 PSI</p>


Your page running the "It Works" example doesn't deflate its output (gives no "Content-Encoding: gzip" in response-headers).

Could it be that your apache is running mod_deflate before ext_filters?
That would cause "sed" to fail its substitutions since it would be working against compressed data, not clear text.

/Björn

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