SvgUtility.php throws PHP warnings when rendering certain SVGs

Hi,

SvgUtility.php is throwing the following warnings when rendering certain SVGs:

Core: Error handler (FE): PHP Warning: simplexml_load_string(): ^ in /var/www/typo3/packages/extension_name/Classes/Utility/Extern/SvgUtility.php line 59
Core: Error handler (FE): PHP Warning: simplexml_load_string(): <sfw xmlns="&ns_sfw;"> in /var/www/typo3/packages/extension_name/Classes/Utility/Extern/SvgUtility.php line 59
Core: Error handler (FE): PHP Warning: simplexml_load_string(): namespace warning : xmlns: URI &ns_sfw; is not absolute in /var/www/typo3/packages/extension_name/Classes/Utility/Extern/SvgUtility.php line 59

This only happens with SVGs that contain metadata like this:

``

A closed/solved [forge issue](https://forge.typo3.org/issues/86428) already exists but this is coming from your SvgUtility Class. For now we patched [this](https://github.com/benjaminkott/bootstrap_package/blob/ad453360a925ea0dc6c68783bd5d425f002a7c8b/Classes/Utility/SvgUtility.php#L59) line with the solution from the mentioned forge issue:

`$svgElement = simplexml_load_string($svgContent, 'SimpleXMLElement', LIBXML_NOERROR | LIBXML_NOWARNING);`

... and the error is gone. :)

PS: Didn't happen with BP < 12

Start in Classes/Utility/SvgUtility.php at line 59, where simplexml_load_string() parses the SVG content. Reproduce the warning with an SVG containing Adobe SaveForWeb metadata such as . Done means those SVGs render without PHP warnings while the existing SVG utility behavior remains intact.

Written by the indexing model from the issue text.