I just updated from a fairly old version of DOMPDF and now can't see the images which were previously generating.
This is how I'm calling the PDF generation. It generates everything on the PDF apart from the images.
require_once 'dompdf_2-0-3/dompdf/autoload.inc.php';
use Dompdf\Dompdf;
use Dompdf\Options;
$options = new Options();
$options->set('isJavascriptEnabled', TRUE);
$options->set('isRemoteEnabled', true);
$dompdf = new Dompdf($options);
$dompdf->loadHtml($html); // adds the html to the pdf
$dompdf->setPaper('A4', 'portrait'); // paper size and orientation
$dompdf->render(); // Render the HTML as PDF
$date = (string)date("d.m.y");
$dompdf->stream("Yandiya Calc Results ".($date));
Below is an example of where I use images in the HTML document.
<div class="Page3 page-break">
<div class="House_Back_Container"><img src="images/PDF/buildingInformation.png" class="Template"></img></div>
<div class="House_Type_Icon"><img src="images/{HOUSE_TYPE_ICON}" class="House_Type_Icon"></img></div>
<h1 class="House_Type">{HOUSE_TYPE}</h1>
<h1 class="House_Age">{HOUSE_AGE}</h1>
<h1 class="Tariff_Value">{TARIFF}</h1>
<img src="images/{LOCATION_ICON}" class="Location"></img>
</div>
Obviously, before I updated, the images were rendering with the PDF generation, so it's been confusing me as to what has changed since.
Text displayed as {EXAMPLE} is for my PHP file where the dompdf is ran to replace with variables that I send through AJAX from my client-side.