From 10ce560aca43fa2a94c3ea4eaaddb53ab08dfc64 Mon Sep 17 00:00:00 2001
From: "Christoph M. Becker" <cmbecker69@gmx.de>
Date: Mon, 6 Feb 2023 19:32:40 +0100
Subject: [PATCH] Fix #71 (Unrelated XHRs are erroneously handled)

---
 classes/CalendarController.php | 2 +-
 js/calendar.min.js             | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/classes/CalendarController.php b/classes/CalendarController.php
index 71c5836..46f3090 100644
--- a/classes/CalendarController.php
+++ b/classes/CalendarController.php
@@ -119,7 +119,7 @@ public function defaultAction(): Response
             'rows' => $rows,
             'jsUrl' => "{$this->pluginFolder}js/calendar.min.js",
         ];
-        if (isset($_SERVER['HTTP_X_REQUESTED_WITH'])) {
+        if (isset($_GET['calendar_ajax'])) {
             return Response::createAjax($this->view->render('calendar', $data));
         }
         $output = '<div class="calendar_calendar">'
diff --git a/js/calendar.min.js b/js/calendar.min.js
index 70e1128..d695839 100644
--- a/js/calendar.min.js
+++ b/js/calendar.min.js
@@ -44,7 +44,7 @@ class CalendarWidget {
     retrieveCalendar(url, isPop) {
         var request = new XMLHttpRequest();
         this.element.classList.add("calendar_loading");
-        request.open("GET", url, true);
+        request.open("GET", url + "&calendar_ajax", true);
         request.setRequestHeader("X-Requested-With",  "XMLHttpRequest");
         request.onload = () => {
             if (request.status >= 200 && request.status < 300) {