JetFormBuilder fix refer in ajax popup

code.php

<?php

add_filter( 'jet-form-builder/form-refer-url', function ( $refer ) {
	if ( empty( $_POST['action'] ) || $_POST['action'] !== 'jet_popup_get_content' ) {
		return $refer;
	}
	
	$url = $_POST['data']['page_url'] ?? '';
	
	if ( empty( $url ) ) {
		return $refer;
	}
	
	return $url;
}, 999, 2 );