Although not answering to the question, I also fighted with CGI::Util and UTF8 decoding, and here is my fix. I ended up with replacing

utf8_chr(hex($2))

by

pack("U", hex($2))

which seems to me less hacking that the CGI::Util's private utf8_chr() routine. No need of use bytes; in my case.

In reply to Re: "use encoding" behaviour change under Perl 5.10? by jdd
in thread "use encoding" behaviour change under Perl 5.10? by gnosek

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