Created attachment 633 [details]
Screenshot of false error message

Using http://validator.w3.org/feed/ to validate a feed from an SSL-protected site containing httpS://-links results into a false error message: 

This feed does not validate.
line n, column m: url must be a full URL: https://[...]  (x occurences)
(c.f. attachment)

If we use all http://-links within the feed (will get rewritten to https:// by apache), the feed will validate, but still remark that "Self reference doesn't match document location". 


Anyhow, the use of http compromises our users' privacy, as someone in the middle can monitor GET-Requests even if they then get rewritten to https, which we would like to prevent.