ISO-8859-1
Fragment of a discussion from Extension talk:HTMLets
Mediawiki uses UTF-8 for everything. If you want to inline HTML-snippets, they need to be encoded as UTF-8 too. Or use character-references like &t;amul; etc for all non-ascii characters.
-- Duesentrieb ⇌ 08:23, 22 April 2008 (UTC)
