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During the 2.9 dev cycle, to be able to support zero-copy data forwarding, a change on the H1 mux was performed to ignore the headers modifications about payload representation (Content-Length and Transfer-Encoding headers). It appears there are some use-cases where it could be handy to change values of these headers or just remove them. For instance, we can imagine to remove these headers on a server response to force the old HTTP/1.0 close mode behavior. So thaks to this patch, the rules are relaxed. It is now possible to remove these headers. When this happens, the following rules are applied: * If "Content-Length" header is removed but a "Transfer-Encoding: chunked" header is found, no special processing is performed. The message remains chunked. However the close mode is not forced. * If "Transfer-Encoding" header is removed but a "Content-Length" header is found, no special processing is performed. The payload length must comply to the specified content length. * If one of them is removed and the other one is not found, a response is switch the close mode and a "Content-Length: 0" header is forced on a request. With these rules, we fit the best to the user expectations. This patch depends on the following commit: * MINOR: mux-h1: Add a flag to ignore the request payload This patch should fix the issue #2536. It should be backported it to 2.9 with the commit above. |
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The HAProxy documentation has been split into a number of different files for ease of use. Please refer to the following files depending on what you're looking for : - INSTALL for instructions on how to build and install HAProxy - BRANCHES to understand the project's life cycle and what version to use - LICENSE for the project's license - CONTRIBUTING for the process to follow to submit contributions The more detailed documentation is located into the doc/ directory : - doc/intro.txt for a quick introduction on HAProxy - doc/configuration.txt for the configuration's reference manual - doc/lua.txt for the Lua's reference manual - doc/SPOE.txt for how to use the SPOE engine - doc/network-namespaces.txt for how to use network namespaces under Linux - doc/management.txt for the management guide - doc/regression-testing.txt for how to use the regression testing suite - doc/peers.txt for the peers protocol reference - doc/coding-style.txt for how to adopt HAProxy's coding style - doc/internals for developer-specific documentation (not all up to date)