title: Opengraph tags (og:tags) in Django template not scraped by Facebook
body: <p>I've been trying to get opengraph tags work for my django website. I use "www.somewebsite.com" as website url during this question. I used the following static code in the header:</p>
  
  <pre><code>&lt;meta property="og:title" content="websitename" /&gt;
  &lt;meta property="og:type" content="website" /&gt;
  &lt;meta property="og:url" content="https://www.somewebsite.com/" /&gt;
  &lt;meta property="og:description" content="Some description."/&gt;
  &lt;meta property="og:image" content="https://www.somewebsite.com/static/image.png" /&gt;
  </code></pre>
  
  <p>This did not work, so I've installed django-meta (<a href="http://django-meta.readthedocs.io/en/latest/installation.html" rel="nofollow noreferrer">http://django-meta.readthedocs.io/en/latest/installation.html</a>) and implemented the following code at my landing page view, so the meta data is added dynamically on the server:</p>
  
  <pre><code># basic page view
  class BasicView(View):
      template_name = 'landing/landing.html'
  
      # get request
      def get(self, request):
          context = {
              "meta": Meta(
                 title="Websitename",
                 description='Some description.',
                 type='website',
                 url='https://www.somewebsite.com/', 
                 image='https://www.somewebsite.com/static/image.png',
                 use_title_tag=True,
                 use_facebook=True,
                 use_og=True,
              ),
           }
  
           return render(request, self.template_name, context)
  </code></pre>
  
  <p>With the following template:</p>
  
  <pre><code>&lt;head {% meta_namespaces %}&gt;
      {% include 'meta/meta.html' %}
  &lt;/head&gt;
  </code></pre>
  
  <p>This results in:</p>
  
  <pre><code>&lt;head  prefix="og: http://ogp.me/ns# fb: http://ogp.me/ns/fb#"&gt;
     &lt;meta name="description" content="Some description."&gt;
     &lt;title&gt;Websitename&lt;/title&gt;
     &lt;meta property="og:title" content="Websitename"&gt;
     &lt;meta property="og:url" content="https://www.somewebsite.com/"&gt;
     &lt;meta property="og:description" content="The easiest way of making digital music."&gt;
     &lt;meta property="og:image" content="https://www.judgemysound.com/static/image.png"&gt;
  &lt;/head&gt;
  </code></pre>
  
  <p>When fetching new scrape information in the facebook debugger tool (<a href="https://developers.facebook.com/tools/debug/og/object/" rel="nofollow noreferrer">https://developers.facebook.com/tools/debug/og/object/</a>) it gives the following information (image):</p>
  
  <p><a href="https://i.stack.imgur.com/PMSoa.png" rel="nofollow noreferrer">Meta data scraped from my website with facebook sharing debugger</a></p>
  
  <p>The strange thing is; The information which are in my og tags are not scraped by facebook. Does anyone know how I can make og:tags work on facebook with a Django app?</p>
  
  <p>Thanks!</p>