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Can Open Graph Protocol be validated by W3C Markup Validation Service ?

From: Fred Marka <fredmarka@hotmail.com>
Date: Sun, 9 Jan 2011 03:12:55 +0100
Message-ID: <BLU0-SMTP124553173A6300EA7EE8D96AE0D0@phx.gbl>
To: www-validator@w3.org

In order to add use Facebook features I put some meta tags relative to Facebook (property, og) but when I try to validate my webpage http://www.agencearagon.com I go the following error:

Line 23, Column 16: there is no attribute "property"
<meta property="fb:admins" content="727013482" />

I've seen that these meta belong to the Open Grap Protocol (http://ogp.me/).

Does it mean that every page that intend to use Facebook features could not be validated ?

Thank you,
Received on Sunday, 9 January 2011 02:13:54 UTC

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