https://github.com/Piwigo/Piwigo/blob/b5c9ca4819806a9f831596c780d69bb79865f569/include/functions_comment.inc.php#L348
Gues that should be: $comment['website_url'] = strip_tags($comment['website_url']);
$comment['website_url'] = strip_tags($comment['website_url']);
No dependencies set.
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https://github.com/Piwigo/Piwigo/blob/b5c9ca4819806a9f831596c780d69bb79865f569/include/functions_comment.inc.php#L348
Gues that should be:
$comment['website_url'] = strip_tags($comment['website_url']);