title: mPDF images not showing on live server
body: <p>We are using mPDF to generating report pdf files from an html page containing a small png image.</p>
  
  <p>All is tested and working on the local server and was working on the live server until a couple of days ago.</p>
  
  <p>Now where the image should be is just a small red X.</p>
  
  <p>We have run some tests and discovered the following:</p>
  
  <ol>
  <li>The images can be accessed through the browser.</li>
  <li>Images will show in the pdf if the src attribute is pointing to an image on a different website.</li>
  </ol>
  
  <p>We are using the newest version of mPDF, with php and a linux server.</p>
  
  <p>Any ideas would be greatly appreciated</p>