namespace Drupal\filter\Plugin\Filter;
use Drupal\Component\Utility\Html;
-use Drupal\Component\Utility\Unicode;
use Drupal\Component\Utility\Xss;
use Drupal\filter\FilterProcessResult;
use Drupal\filter\Plugin\FilterBase;
$caption = FilteredMarkup::create(Xss::filter($caption, ['a', 'em', 'strong', 'cite', 'code', 'br']));
// The caption must be non-empty.
- if (Unicode::strlen($caption) === 0) {
+ if (mb_strlen($caption) === 0) {
continue;
}