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053c15750b
PiBa-NL reported that some servers don't fall back to the Host header when :authority is absent. After studying all the combinations of Host and :authority, it appears that we always have to send the latter, hence we never need the former. In case of CONNECT method, the authority is retrieved from the URI part, otherwise it's extracted from the Host field. The tricky part is that we have to scan all headers for the Host header before dumping other headers. This is due to the fact that we must emit pseudo headers before other ones. One improvement could possibly be made later in the request parser to search and emit the Host header immediately if authority was not found. This would cost nothing on the vast marjority of requests and make the lookup faster on output since Host would appear first. This fix must be backported to 1.9.
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 - 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)