title: Faceboof debug has Parser Mismatched Metadata
body: <p>I am trying to resolve a warning shown on the Facebook linter.</p>
  
  <blockquote>
    <p>The parser's result for this metadata did not match the input
    metadata. Likely, this was caused by the data being ordered in an
    unexpected way, multiple values being given for a property only
    expecting a single value, or property values for a given property
    being mismatched. Here are the input property =>content pairs that
    were not seen in the parsed result: 'og:type => product'</p>
  </blockquote>
  
  <p>It's a simple implementation but I am not sure I totally follow:</p>
  
  <pre><code>Meta Tag:   &lt;meta property="og:type" content="product" /&gt;
  Meta Tag:   &lt;meta property="og:title" content="Product Title" /&gt;
  Meta Tag:   &lt;meta property="og:url" content="http://www.site.com/product" /&gt;
  Meta Tag:   &lt;meta property="og:image" content="http://www.site_com/product.jpg" /&gt;
  Meta Tag:   &lt;meta property="og:site_name" content="Site Name" /&gt;
  Meta Tag:   &lt;meta property="og:description" content="Description" /&gt;
  Meta Tag:   &lt;meta property="fb:admins" content="ADMINID" /&gt;
  Meta Tag:   &lt;meta property="fb:app_id" content="APPID" /&gt;
  </code></pre>
  
  <p>Product does not even seem to be supported officially outside of the Facebook docs.</p>
  
  <p>Here is my raw meta:</p>
  
  <pre><code>&lt;html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en" xmlns:fb="http://ogp.me/ns/fb#"&gt;
  &lt;head&gt;
  &lt;title&gt;Product Title&lt;/title&gt;
  &lt;meta property="og:type" content="product" /&gt;
  &lt;meta property="og:title" content="Product Title" /&gt;
  &lt;meta property="og:url" content="http://www.site.com/product" /&gt;
  &lt;meta property="og:image" content="http://www.site_com/product.jpg" /&gt;
  &lt;meta property="og:site_name" content="Site Name" /&gt;
  &lt;meta property="og:description" content="Description" /&gt;
  &lt;meta property="fb:admins" content="ADMINID" /&gt;
  &lt;meta property="fb:app_id" content="APPID" /&gt;
  &lt;base href="http://www.site.com/" /&gt;
  &lt;link rel="shortcut icon" href="/images/favicon.ico" /&gt;
  &lt;meta http-equiv="Content-Type" content="text/html; charset=utf-8" /&gt;
  &lt;link href="http://www.site.com/css.css" rel="stylesheet" type="text/css" /&gt;
  &lt;meta name="description" content="Description" /&gt;
  &lt;/head&gt;
  </code></pre>
  
  <p>I tried adding a CURIE as below but it did not work. Do I need to do anything other than replace example.com with my own domain and call my namespace something in the example below?</p>
  
  <pre><code>&lt;head prefix="mysitens: http://example.com/ns#"&gt;
  &lt;meta property="og:type" content="mysitens:product" /&gt;
  </code></pre>
  
  <p>Thanks!</p>