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From Joe Orton <>
Subject Re: [PATCH] mod_deflate + mod_proxy bug
Date Thu, 10 Jun 2004 08:27:05 GMT
On Wed, Jun 09, 2004 at 05:23:38PM -0400, Allan Edwards wrote:
> Running ProxyPass with mod_deflate results in
> an extraneous 20 bytes being tacked onto 304
> responses from the backend.
> The problem is that mod_deflate doesn't handle
> the zero byte body, adds the gzip header and
> tries to compress 0 bytes.
> This patch detects the fact that there was no
> data to compress and removes the gzip header
> from the bucket brigade.

Wouldn't it be simpler to just check for a brigade containing just EOS
and do nothing for that case in the first place?

But the fact that the proxy passes such a brigade through the output
filters in the first place sounds like the real bug, it doesn't happen
for a non-proxied 304 response.


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