Basic Auth with ProxyPass Through SSL

[Joel Donahue <joel.donahueis@xxxxxxxxx>]

I am setting up a reverse proxy to an internal webserver from an
apache server with a public IP. I want to use Basic Auth and SSL on
the public apache server which then forwards standard http, non-ssl
traffic, to the internal webserver. Basic auth with ProxyPass works
perfectly without using ssl but when using ssl the browser prompts me
for the credentials but apache never accepts them as valid. Accessing
the internal site with ssl and ProxyPass WITHOUT basic auth required
works as well.

This configuration works great without using ssl:

<VirtualHost *:80>

ProxyPass / http://site.internal/ retry=0
ProxyPassReverse / http://site.internal/
ProxyPreserveHost On

<Location />
AuthType Basic
AuthName "Restricted Area"
AuthUserFile /usr/local/apache/access-file
Require valid-user
</Location>

</VirtualHost>

However this configuration does not work, however if I remove basic
auth I can get through:

<VirtualHost *:443>

ProxyPass / http://site.interal/ retry=0
ProxyPassReverse / http://site.internal/
ProxyPreserveHost On

<Location />
AuthType Basic
AuthName "AFC Restricted Access"
AuthUserFile /user/local/apache/access-file
Require valid-user
</Location>

<VirtualHost>

What am I missing?

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