[TYPO3-UG Dutch] Validating a password-protected page

[H. Hahn]

I am building a website (with Typo3 4.2) where some pages may only be 
accessed by members of one or more user groups. This works fine and 
reliably.

However, I am running into one strange problem. While being logged in to 
the front end at the highest possible level (i.e., having access to all 
pages), I wanted to validate such a protected page with W3C HTML 
Validator (http://validator.w3.org/). The validation process completed 
in an amazingly short time. It gave one warning and one error, both of 
which where not correct. Only after I re-validated with displaying the 
full source code, I noticed that a *different* page was being validated, 
viz. the "Page not found" page.

Apparently, the following happened. I requested a certain page to be 
validated. Being logged in myself, I expected the Validator to have the 
same rights as I did. However, the Validator was not granted acces and 
was redirected to the "Page not found" page. (The validator's address 
field still showed the original (correct) URL. This is of course wrong, 
but it is not a Typo3 problem.)

QUESTION:
How can I assure that the validator gets the same access rights as the 
person invoking it?
Thanks in advance