On the Contact detail page there is a
Work With Portal -> Login As Portal User button when the Customer Portal is enabled. I have a Force.com Site that uses Customer Portal for authentication. When an internal SF user clicks on that button link it takes them to the unbranded standard SF portal. I would like it to log them in to the skinned site. How can that be done? I didn't find any documentation on this, but maybe I just missed it.
I tried just copying and pasting in the url of the secure site after clicking the Login As Portal button link, but I guess a different cookie is used or something because it didn't recognize that I was logged in.
To be clear, it is this button on the Contact page. The desired functionality is that the internal user that has access to the Contact can log in to the Force.com Site that uses Customer Portal for the authentication. I'm not asking how to use set up Force.com Sites + Customer Portal for a skinned log in. It's the logging in as the Contact user to the skinned site that that I'm interested in.