debugging remoteuser / external auth flow

[Cantor, Scott]

> The Apache HTTPd configuration hasn't changed.
> The Tomcat configuration hasn't changed.
> I'm using the same idp.authn.flows (based on the RemoteUser flow)

I don't know the backstory, I assumed this was something set up specifically for this change.

> This thing installs as an maven overlay.  Something about the install
> (configuration?  code?) has broken shib's ability to see REMOTE_USER.  I'm
> trying to figure out where things went wrong.

It can't be seen from anything in our code, so nothing we log would help.

Probably it would be a Java filter I'd be pointing to as the culprit.

-- Scott