If you have a content element in typo3 with a header value containing “special chars” like romanian “diacritics” the header will be rendered like sh… – because the “special chars” are transformed using the &#xxx;-syntax, after which the & is transformed into &. The result looks like: &#xxx;

To get rid of this write in the setup part of your template:
lib.stdheader.10.setCurrent.htmlSpecialChars = 0