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From "William A. Rowe, Jr." <>
Subject Re: [users@httpd] How does Transfer-Encoding: chunked work with CGI?
Date Fri, 11 Sep 2009 22:16:24 GMT
André Warnier wrote:
> Hi.
> As regarding the overall content-length header, has anyone re-checked
> the relevant part of the HTTP RFCs ? I haven't yet, but I seem to
> remember that for chunked encoding, each chunk has an individual length,
> but there is no overall content-length.
> Which would meake sense, because at the time the initial headers are
> sent out, the total length is not necessarily known.
> In terms of CGI, that would mean that when Apache calls the CGI module,
> it cannot set the CONTENT-LENGTH as an environment value, since it isn't
> known yet.

That's what it does, yup.  In fact the combination is prohibited, so the
content length header is unset in the presence of chunked encoding.

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