in XML files, with 0.14, i have :
the problem is not the case sensitivity, it's because the page should have been
renamed/moved one or more times
should be http://www.freedesktop.org/Standards/shared-mime-info-spec i suppose
There's no requirement that a namespace URI can be used to download a web page.
It just has to be globally unique. Changing the namespace would also break all
existing applications. Marking as 'invalid'...