http_host issue when running under docker

[giesberge]

If you use request.client.host you'll get the ip of the server if you're running in docker and it will fail requests. Its probably better to use request.url.hostname unless you think otherwise

[ais-one]

ok let me check on that!

[mrestay]

I spent days trying to figure out how to run this in Docker. Changing request.client.host to request.url.hostname as suggested by @giesberge solves the issue of an invalid SAML ACS post request due to a difference in hosts.

[ais-one]

@mrestay I had forgotten about this repo for awhile, let me include the findings from @giesberge in the README.md and I will also try out this using Docker.