EAS autodiscover does not work for Samsung Galaxy S7

[wrosenauer]

(first as information I'm currently using the 0.10.2 tag as latest I
couldn't get to work (reported on github)).

I basically got everything set up and working but EAS.

With automx-test it seems to work but tried it with my Samsung device
and hit different issues:

the autodiscover request was answered with a 411 which apparently means
that Apache implied a chunked request.
Apache error log:
Received request requiring chunked transfer encoding, but optional
support for chunked transfer encoding has not been enabled.:
/usr/lib/automx/automx_wsgi.py

Apache access log:
[02/Mar/2017:09:06:45 +0100] "POST /autodiscover/autodiscover.xml
HTTP/1.1" 411 921
[02/Mar/2017:09:06:46 +0100] "GET /autodiscover/autodiscover.xml
HTTP/1.1" 500 - "-" "Android-SAMSUNG-SM-G930F/101.60001"

So the device seems to find the error with POST and tries a GET but
without any parameter which again yields into a 500 because automx
currently always requires a parameter.

All the above is not written to the automx debug log btw.

then I enabled WSGIChunkedRequest On to possibly get around the 411
which seemed to workaround the 411 but then again it seems to
immediately run also into a 500 for the POST request.

And last but not least it seems to work fine with an iOS device so there is some client difference causing this behaviour. I could imagine the only thing required is to make the wsgi capable to work with chunked?

[MKuzma]

Same error if Outlook 2016 tries to run autodiscovery, it tries to reveal autodiscover.xml but it isn't using any parameter, especially no "emailaddress" and get HTTP/500 because of the script.