title: Facebook open graph meta tags & valid html
body: <blockquote>
    <p><strong>Possible Duplicate:</strong><br>
    <a href="https://stackoverflow.com/questions/2704942/html-validation-error-for-property-attribute">Html validation error for property attribute</a>  </p>
  </blockquote>
  
  
  
  <p>According to facebook to use their like button and the open graph meta tags you need to place something like this into your html page.</p>
  
  <pre><code>&lt;meta property="og:title" content="The Rock"/&gt;
  &lt;meta property="og:type" content="movie"/&gt;
  &lt;meta property="og:url" content="http://www.imdb.com/title/tt0117500/"/&gt;
  &lt;meta property="og:image" content="http://ia.media-imdb.com/rock.jpg"/&gt;
  &lt;meta property="og:site_name" content="IMDb"/&gt;
  </code></pre>
  
  <p>What the hell are they playing at? This is invalid html, the attribute 'property' is not and never has been an attribute of the meta tag so why on earth have facebook used this instead of &lt;meta name="og:title" content="The Rock" /&gt;?</p>
  
  <p>I am reluctant to try on my site live with valid 'name' instead of 'property' because if I do try and it doesn't work on my site then anyone who clicks like while i am testing it out will have their like fail.  So ... Does anyone know if I use the use 'name' instead of 'property' will this still work?</p>