title: How to use jquery to remove duplicated meta tag?
body: <p>For some reasons, my page contains two meta tag sections in the header, and they are the same.</p>
  
  <p>I can create a jquery code to remove the duplicated one if this meta tag is only one line; however, my situation is that these meta tags contain 6 lines, like the first part of the following codes showing:</p>
  
  <p>(the second part is the duplicated part I want to remove)</p>
  
  <pre><code>&lt;meta property="fb:app_id" content="123456789"&gt;
  &lt;meta property="og:site_name" content="MyWebsite"&gt;
  &lt;meta property="og:url" content="http://ThisIsMyWebsite.com"&gt;
  &lt;meta property="og:title" content="Duplicated Meta Tag Testing"&gt;
  &lt;meta property="og:description" content="Test the duplicated meta tags"&gt;
  &lt;meta property="og:image" content="http://ThisIsMyWebsite.com/show.jpg"&gt;
  
  &lt;meta property="fb:app_id" content="123456789"&gt;
  &lt;meta property="og:site_name" content="MyWebsite"&gt;
  &lt;meta property="og:url" content="http://ThisIsMyWebsite.com"&gt;
  &lt;meta property="og:title" content="Duplicated Meta Tag Testing"&gt;
  &lt;meta property="og:description" content="Test the duplicated meta tags"&gt;
  &lt;meta property="og:image" content="http://ThisIsMyWebsite.com/show.jpg"&gt;
  </code></pre>
  
  <p>Is there any clear way to find/remove duplicated part?(Keep only one part)</p>
  
  <p>Thank you.</p>