title: TCPDF and certains SVG not rendering correctly
body: <p>I'm trying TCPDF and the example 058 on my php server (<a href="https://tcpdf.org/examples/example_058/" rel="nofollow noreferrer">https://tcpdf.org/examples/example_058/</a>).
  The example itself works great. I downloaded others SVG files to try if everything is correct, but some of them don't render correctly, or are completely broken.</p>
  
  <p>In the example 058 code I changed 2 things :
  1) the svg file path
  2) the height and width to 100 and 100</p>
  
  <p>Here is one of the broken SVG rendering i got, with the Firefox logo found on wikipedia :
  <a href="https://i.stack.imgur.com/JqKPm.jpg" rel="nofollow noreferrer">On the left, the SVG rendered in Chrome, on the right, the pdf with Firefox logo inside</a></p>
  
  <p>I'm using PHP 7.1.x and TCPDF 6.2.25. Is it a bug in TCPDF or an error in the SVG file ?</p>