# You should have received a copy of the GNU General Public License
# along with Koha; if not, see <http://www.gnu.org/licenses>.
-use CGI;
+use Modern::Perl;
+use CGI qw ( -utf8 );
use C4::Context;
use C4::Serials::Frequency;
use C4::Auth qw/check_cookie_auth/;
-use URI::Escape;
-use strict;
+use JSON qw( to_json );
my $input=new CGI;
my $frqid=$input->param("frequency_id");
my $frequencyrecord=GetSubscriptionFrequency($frqid);
binmode STDOUT, ":encoding(UTF-8)";
print $input->header(-type => 'text/plain', -charset => 'UTF-8');
-print "{".join (",",map { "\"$_\":\"".uri_escape($frequencyrecord->{$_})."\"" }sort keys %$frequencyrecord)."}";
+print to_json( $frequencyrecord );