Re: Microdata not validating on W3 but OK in

Doug Snyder, Sat, 14 Jan 2012 09:59:33 -0800:
> I am going through the process of adding rich snippets using 
> microdata on my job posting pages at and today I 
> noticed that the W3 validator is showing errors for the itemtype and 
> itemprop atttributes even though the doctype is HTML5. This just 
> started happening today (1/14/12.) The page validates my 
> marked up pages as valid HTML5. Does anyone know what the discrepancy 
> is?
> You can use the following page as an example:

The W3C validator validates HTML5 according to the HTML5 spec under, whereas probably validates according to the spec 
under In the w3-spec, then Microdata is spec of its own - 
an extension to HTML5, whereas in the whatwg-spec, then Microdata is 
part of the main spec.

Leif H Silli

Received on Sunday, 15 January 2012 15:49:44 UTC