opengraph - Open Graph + Twitter Cards + HTML5 = incompatible? -


i've implemented open graph tags , twitter card tags on site. way twitter card tags validate html5 changing them ...name="twitter:card"... ...property="twitter:card"... however, causes facebook's open graph debugger to:

open graph warnings should fixed extraneous property: objects of type not allow properties named 'twitter:card'.

are open graph tags, twitter card tags, , html5 incompatible?

http://developers.facebook.com/tools/debug

what validator tool html5 use? don't know handles such kind of markup. microdata not supported w3c validators far :) general suggestion use service-related-validator service-specific-markup.

about compatibility - they're compatible. here can find doc rdfa support in html5 (and opengraph rdfa in fact). here describing new meta names (this how twitter cards realized).

but thing need this one :) there written open graph , twitter cards relations twitter sees it.


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