Bugzilla – Bug 872
itemtype is a list of tokens
Last modified: 2011-10-31 23:28:29 CET
Simple schema change needed for this, and perhaps also some tweaking in the tree-building microdata checker which collects the itemtype but does nothing with it IIRC.
See also http://www.w3.org/Bugs/Public/show_bug.cgi?id=14637 in which I ask if itemtype="" is valid. I assume it isn't.
Created attachment 214 [details] quickfix Fixed, just needs review.