From a4fee04c2295f62c1405f9d5461b8e9637af9a25 Mon Sep 17 00:00:00 2001
From: "Julian J. M" <julianjm@gmail.com>
Date: Thu, 21 Dec 2023 12:24:36 +0000
Subject: [PATCH] Set the content-type header to Application/json. This makes
 it compatible with Google Chat webhooks.

---
 src/inc/notifications/NotificationSlack.class.php | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/inc/notifications/NotificationSlack.class.php b/src/inc/notifications/NotificationSlack.class.php
index 75fe29770..67c85afce 100644
--- a/src/inc/notifications/NotificationSlack.class.php
+++ b/src/inc/notifications/NotificationSlack.class.php
@@ -36,6 +36,7 @@ function sendMessage($message, $subject = "") {
       curl_setopt($ch, CURLOPT_HTTPPROXYTUNNEL, "true");
     }
     
+    curl_setopt($ch, CURLOPT_HTTPHEADER, array('Content-type: application/json'));
     curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "POST");
     curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
     curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);