CPAN::Groonga

$mm->addFileExts( '\.js$',    'application/javascript' );
        $mm->addFileExts( '\.json$',  'application/json' );
        $mm->addFileExts( '\.gif$',   'image/gif' );
        $mm->addFileExts( '\.

  $body = Encode::encode( $charset, $body );
    } elsif ( $self->ContentType =~ /text|javascript|json/ ) {
        $body = Encode::encode( 'UTF-8', $body );
    }

    if ( $self->_content_writer ) {