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Why are non-ASCII characters output as numeric character references instead of raw UTF-8?

April 26, 2017character characters non-ASCII numeric output raw references utf-8

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Why are non-ASCII characters output as numeric character references instead of raw UTF-8?

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Firstly, it should be noted that numeric character references are a valid way of representing non-ASCII characters in HTML, so even if you do not perform the action suggested below to address this, Nelson’s output will continue to render correctly. This behaviour is caused by a known bug in older versions of the libxml2 library, a component that comes with the operating system. For example, Mac OS X 10.5.6 (Leopard) comes with version 2.2, manifesting this behaviour. The issue has been found to be corrected at least in versions 2.6.21 and higher.