Validate https pages?

I have updated a secured page to html40 and cannot get the validator icon to
validate the page when I click on it.   The page will validate from the
http://www.w3schools.com/site/site_validate.asp web site however when I
click on the icon from the page that has been upgraded and displays the icon
I get the following web page message:
Sorry, this type of URI scheme (undefined) is not supported by this service.
Please check that you entered the URI correctly.

URIs should be in the form: http://validator.w3.org/

If you entered a valid URI using a scheme that we should support, please let
us know as outlined on our Feedback page. Make sure to include the specific
URI you would like us to support, and if possible provide a reference to the
relevant standards document describing the URI scheme in question.



I have upgraded all of our site to XHTML 1.0 and have tried to upgrade our
secured pages to this too but have ran into problems with varying length
input fields so I am working on upgrading these to html40 for now.
However I do not want to post an icon on the pages that states it is a valid
html40 and when you click on the icon it doesn't pop up a page stating it is
valid like all my other pages do.   I have tried putting the uri in the icon
tag with the http and the https reference and without a uri and when I am
running the page as https I always get the message above.   When I run the
page as http is comes back with a valid html40 page.

is there a way to get the icon validation to work with secured pages?    Or
do you need to qualify the icon with text stating "to see page validation
you must click on this page unsecured!"    Or just not put a icon validation
on the page?

Ron