Hi! I've set org-html-use-unicode-chars since I want ox-html to leave IRIs as IRIs. But this has another undesired effect: it breaks <URL> references in code, since it doesn't escape the brackets.
Eg this: #+BEGIN_SRC Turtle @prefix aat: <http://vocab.getty.edu/aat/>. #+END_SRC results in the URL being invisible in the exported HTML. The fault is here: (defun org-html-final-function (contents backend info) ... (when org-html-use-unicode-chars (require 'mm-url) (mm-url-decode-entities)) previous code carefully escaped the entities in org-html-protect-char-alist, only for mm-url-decode-entities to unescape them. http://article.gmane.org/gmane.emacs.orgmode/94742 is somewhat related.