However you should be aware that support for itemprop will likely be
removed from the validator altogether since it is not actually valid HTML5.
On Sep 5, 2014 3:49 AM, "Jukka K. Korpela" <jkorpela@cs.tut.fi> wrote:
> 2014-09-04 10:43, Sanjeev Verma wrote:
>
> While validating our website http://14.141.108.213:93/ we received error
>> “The itemprop attribute was specified, but the element is not a property
>> of any item”
>>
>
> The experimental HTML5 validator checks against a vaguely defined
> collection of drafts and notes, apparently including “HTML Microdata”,
> which defines the itemprop attribute (which is not present at all in W3C
> HTML5 CR). It defines the attribute so that it is allowed on any element
> “if doing so adds one or more properties to one or more items”, with
> “items” as a link to a desciption of the itemscope attribute.
> Ref.: http://www.w3.org/TR/microdata/#names:-the-itemprop-attribute
>
> Thus, itemprop is allowed only if an ancestor element has the itemscope
> attribute. In your case, the simplest fix is to add that attribute to the
> parent of your meta elements, the head element:
>
> <head id="header1" itemscope>
>
> Yucca
>
>
>