Is this thread by any chance related to this bug:
https://bugs.launchpad.net/zope2/+bug/160968
The IUserPreferredCharsets implementation of Zope 3 found in
zope.publisher.http.HTTPCharsets has the following condition in it
to check if the HTTP_ACCEPT_CHARSET header is available:
header_present = 'HTTP_ACCEPT_CHARSET' in self.request
However, with Zope 2's request will return '' (the empty string) for
any header that starts with 'HTTP_', see
ZPublisher.HTTPRequest.HTTPRequest.get.
Ultimately, this results in the HTTPCharsets.getPreferredCharsets to
return ['iso-8859-1'], where it should really return 'UTF-8'.
To understand this problem better, look at
Products.Five.browser.decode.processInputs, which uses the
negotiator to find out which charset to use to convert form
variables. For browsers that do not send the 'HTTP_ACCEPT_CHARSET'
header, this will result in wrongly encoded form values. To
reproduce this, fill in Chinese characters to any Five formlib form
with Internet Explorer 6.0. Since Firefox sends HTTP_ACCEPT_CHARSET,
it's not a problem there.
--
http://danielnouri.org
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