created routes, but json parse error ate the end of transaction

plugins/fipfcard_plugin/php/test_cache.php

@@ -1,5 +1,14 @@
 <?php
 
+/**
+ * it means someone outside wp is accessing the file, in this case kill it.
+ */
+if (!defined('ABSPATH')) {
+	die('You can not access this file!');
+}
+
+
+
 function prevent_page_caching( $headers ) {
 	error_log("in prevent_page_caching");
 	if (is_page('test-form-modals')) {