/*!
Theme Name: Kava Child
Theme URI:
Author: Zemez
Author URI:
Description: Kava child theme.
Template: kava
Version: 1.0.1
License: GNU General Public License v3 or later
License URI: http://www.gnu.org/licenses/gpl-3.0.html
Text Domain: kava-child 
*/
add_filter( 'gform_field_value_refurl', 'populate_referral_url');
 
function populate_referral_url( $form ){
    // Grab URL from HTTP Server Var and put it into a variable
    $refurl = $_SERVER['HTTP_REFERER'];
    GFCommon::log_debug( __METHOD__ . "(): HTTP_REFERER value returned by the server: {$refurl}" );
 
    // Return that value to the form
    return esc_url_raw($refurl);
}