Feature Wish: http://validator.w3.org/check/referer should accept non-200

Hi!

Ich would like to add the usual link to http://validator.w3.org/check/referer 
on my custom error documents. However, this does not work, since the 
validator webapp does not accept non-200 codes.

The page at http://validator.w3.org/check can be configured to validate error 
pages as well (parameter No200=1), but for 
http://validator.w3.org/check/referer this does not work. It would be nice, 
to have the referer-Skript propagate that parameter to the check-Skript.

I would like to thank the authors of the html-validator for their work. I just 
got all my pages to be fully compliant, and the validator was very helpful.

Best regards,
Ralf Wiebicke.