According to the latest specification http://www.whatwg.org/specs/web-apps/current-work/multipage/microdata.html, an element with an empty itemprop='' should not get listed in the .properties list. Please check : http://html5.org/r/6854 for the spec change.
Created attachment 145593 [details] Patch
Comment on attachment 145593 [details] Patch View in context: https://bugs.webkit.org/attachment.cgi?id=145593&action=review > LayoutTests/fast/dom/MicroData/element-with-empty-itemprop.html:18 > + Why the blank line?
Committed r119822: <http://trac.webkit.org/changeset/119822>