Apache 2.4 - How to configure RewriteRule to auto-login to *foreign* https server?

Question

Apache HTTP Server

Apache 2.4 is running at 127.0.0.1:80 on a windows 7 sp1 64bit Rus computer.

RewriteRule changes the local URL to a file URL on a foreign HTTPS server. The problem is that this server requires authorization.

Is it possible to somehow add a login and password to another server to the Apache config, so that Apache in proxy mode logs in to it automatically without disturbing the client with an authorization request?

URL like
https://login:[email protected]/dir/file.ext
does NOT work.