Microdata was explicitly dropped from the recommendation track. To me that
means it is not valid HTML5. Maybe that is a simplistic view.
On Sep 5, 2014 7:55 AM, "Jukka K. Korpela" <jkorpela@cs.tut.fi> wrote:
> 2014-09-05 13:42, Shane McCarron wrote:
>
> However you should be aware that support for itemprop will likely be
>> removed from the validator altogether since it is not actually valid
>> HTML5.
>>
>
> Should we? Is there a W3C statement on this?
>
> HTML5 is work in progress, and it is not clear what “extensions” outside
> the W3C HTML5 will be treated as part of HTML5.
>
> Yucca
>
>