title: Facebook Open Graph locale for Australia
body: <p>I am trying to add the og:locale tag for an Australian website and Facebook's linter tells me that I have an error.</p>
  
  <p>Based on the documentation (and assuming what the correct content should be), I have added this to my page head:</p>
  
  <pre><code>&lt;meta property="og:locale" content="en_AU" /&gt;
  </code></pre>
  
  <p>Facebook's linter ( <a href="http://developers.facebook.com/tools/debug" rel="noreferrer">http://developers.facebook.com/tools/debug</a> ) tells me:</p>
  
  <p>Object Invalid Value
  Object at URL '<a href="http://foo" rel="noreferrer">http://foo</a>' of type 'website' is invalid because the given value 'en_au' for property 'og:locale:locale' could not be parsed as type 'enum'.</p>
  
  <p>What's going on here? Is en_AU not the correct code for australia? I also tried en_AUS and that didn't work either. If i change it to en_US it works fine.</p>