From the mailing list (http://lists.nuxeo.com/pipermail/ecm/2006-December/000447.html):

"""
I'm having trouble submitting unicode values with Nuxeo EP's HTML forms.
I've tested with Nuxeo EP 5.0.0.RC1 and RC2 using both IE and Firefox.
When working directly against Nuxeo Core in Java everything works fine -
I've managed to feed and retrieve values from the repository in unicode
(hebrew) correctly.

So far I've noticed the following:

The UTF-8 meta tag appears in the HTML sources:
*<meta http-equiv="Content-Type" content="text/html;charset=utf-8" />
*(thanks to " theme-view.xml" in nxthemes-jsf-filters and
nxthemes-jsf-editor).
yet the page is being understood by the browser as ISO-8859-1 (according to
the "View Page Info" dialog in Firefox)

When inputting hebrew into the form - it is being interpreted as its 'UCS
code point'
the hebrew letter 'aleph' for instance is being submitted as "&#1488;" and
then retrieved and displayed as "&amp;#1488;" (so you just see a
long sequence of *&#Xxx;*'s instead of the actual hebrew text).

I've tried to tweak this myself by various means including editing the
sources but so far failed to find a solution. I'd appreciate your comments
on this, as it is a critical requirement for my application and probably for
many other international users.

Some useful reading resources:
http://www.sitepoint.com/blogs/2006/03/15/do-you-know-your-character-encodings/
http://ppewww.physics.gla.ac.uk/~flavell/charset/form-i18n.html
"""