HTTP_AUTHORIZATION

Hi there,

I have two servers hosting my Ruby on Rails application on Ubuntu (one
production, one staging). Both use Apache 2.2.4 built from source and
they share the same httpd.conf. For some reason, the staging server
doesn't have the HTTP_AUTHORIZATION header (or X-HTTP_AUTHORIZATION)
in the requests which is causing problems with my app. This header is
present and correct on my production server and I'm baffled as to why
the header isn't on my staging server.

Can anyone suggest why this might be happening?

Thanks in advance
Olly