Images will not be created, when working with https

Hi Emili!

The problem still in your code, after update to version 1.9.7 you have the
same error again, that images will not be included in a pdf.

Here is the solution, which is working for me:

Please add the following lines in dk-pdf/vendor/mpdf/mpdf/src/Mpdf.php

LineNo
.....
11849 
11850         function getFileContentsByCurl($url, &$data)
11851         {
11852                 $this->logger->debug(sprintf('Fetching (cURL) content of remote URL "%s"', $url), ['context' => LogContext::REMOTE_CONTENT]);
11853 
11854                 $ch = curl_init($url);
11855 
11856 /**** Added by ET***/
11857                 $p = parse_url($url);
11858                 if ($p['scheme']=='https') {
11859                         curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);
11860                         curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0);
11861                 }
11862 /**** End Add ****/
11863                 curl_setopt($ch, CURLOPT_USERAGENT, 'Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:13.0) Gecko/20100101 Firefox/13.0.1'); // mPDF 5.7.4
.....

If these Curl-options are set, the picture are created, otherwise the place is left blank.

Greetings karlte