title: mPDF 5.7.1 - image displays as a broken [x]
body: <p>I have a small issue with mPDF (version 5.7.1).</p>
  
  <p>This code should generate PDF with image file:</p>
  
  <pre><code> $mpdf = new mPDF();
   $html = '&lt;img src="https://www.google.pl/images/srpr/logo11w.png"/&gt;';
   $mpdf-&gt;WriteHTML($html);
   $mpdf-&gt;debug = true; 
   $output = $mpdf-&gt;Output(); 
   exit();
  </code></pre>
  
  <p>Well there is no image but an <code>[x]</code> instead.</p>
  
  <p>I've googled enough to get to the conclusion that it has to be done this way but I also tried realpath to the file. Still nothing.</p>
  
  <p>The only thing I haven't tried is <code>&lt;img src="logo11w.png"&gt;</code> and copying the image into the folder because I don't know into which folder I should copy file <code>logo11w.png</code>.</p>
  
  <p>Any suggestions?</p>