title: Get meta tag content in jQuery
body: <p>I would like to get the meta content where pageDetails is my HTML page.</p>
  
  <pre><code>$(pageDetails).find('meta[name="biz-id"]').attr("content")
  </code></pre>
  
  <p>My HTML code is:</p>
  
  <pre><code>&lt;meta name="biz-id" content="q6aDxTSK7njG7qWB1tSV5g"&gt;
  </code></pre>
  
  <p>Why my returned value is always empty?</p>