SVG images are broken with XSS::filter

This change looks good. I'll give it a manual test and merge / cut a release by Monday evening if there aren't any glaring issues.

Thanks!

I was able to confirm that #3 improves the visual diff experience (by not stripping out markup), but there are more things wrong, outside of the scope of this issue. We may have to file an upstream bug report and open a follow-up.

Resolved some coding standards violations; if this makes the test bot happy, I'll commit it.

I think that the deeper issues with SVG's might be an inherent bug in the PHP product itself:

Warning: DOMDocument::loadHTML(): Tag svg invalid in Entity, line: 1 in Caxy\HtmlDiff\ListDiffLines->listByLines() (line 91 of /var/www/html/vendor/caxy/php-htmldiff/lib/Caxy/HtmlDiff/ListDiffLines.php).

I doubt the upstream library will fix something that's broken by \DOMDocument proper, but the least we can do is prevent the markup from being mangled in this case.

Committed and pushed #6 to 1.0.x -- thanks!

Thanks. Interesting read on the topic https://foxpa.ws/domdocument-loadhtml-tags-invalid-parsing-html5-and-more

Automatically closed - issue fixed for 2 weeks with no activity.