title: Image tag with external (non-image) url
body: <p>On a Rails 4.1 app I need to insert a image with the next source url structure</p>
  
  <pre><code>&lt;img src="http://example.com/link.html?param1=1234&amp;param2=5678" /&gt;
  </code></pre>
  
  <p>Placing that in a blank html file works fine, it retrieve a image from that url and show it. But in my rails app it shows nothing.</p>
  
  <p>Also, Chrome Inspector didn't see it as an image, just as "other" resource (html blank file)</p>
  
  <p>What can I do to show that image from that url?</p>
  
  <p>Thank you!</p>
  
  <p><strong>Update:</strong>
  The output of that line is:</p>
  
  <pre><code>&lt;img src="http://example.com/link.html?param1=1234&amp;param2=5678" width="0" height="0" style="display: none !important; visibility: hidden !important; opacity: 0 !important; background-position: 1px 1px;"&gt;
  </code></pre>
  
  <p>Almost the same for a <code>&lt;%= image_tag("http...") %&gt;</code> tag</p>
  
  <pre><code>&lt;img alt="Link" src="http://example.com/link.html?param1=1234&amp;param2=5678" style="display: none !important; visibility: hidden !important; opacity: 0 !important; background-position: 1px 1px;" width="0" height="0"&gt;
  </code></pre>