I can replicate the problem with WWW::Mechanize 1.54, but not with WWW::Mechanize 1.34. (LWP 5.825 in both cases.)

My goal was to rule out a badly encoded file. I used the following equivalent cgi script for testing: 

#!/usr/bin/perl -wT

use strict;
use CGI qw(param);

binmode STDOUT, ':encoding(iso-8859-1)';

print "Content-type: text/html; charset=iso-8859-1\n\n";

my $q = param('status') || 'nothing';

print <<HTML;
<html>
<body>
<h1>You has selected $q</h1>
<form name="form" action="http://localhost/">
<select name="status">
<option value="ACCI\x{D3}N">ACCI\x{D3}N</option>
<option value="PING\x{DC}INO">PING\x{DC}INO</option>
</select>
<input type="submit" name="send" value="send">
</form>
</body>
</html>
HTML

[download]

The relevant difference between your systems is not the OS, it's the version of the module.

In reply to Re^3: WWW::Mechanize always use utf8 by ikegami
in thread WWW::Mechanize always use utf8 by Anonymous Monk

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