From 2fd885cd8560a56274d49391fd2a20254ffaea3f Mon Sep 17 00:00:00 2001
From: Paul Holden <paulh@moodle.com>
Date: Tue, 28 Jan 2025 11:27:44 +0000
Subject: [PATCH] MDL-72080 javascript: explicit Content-Type in service
 responses.

This fixes various external methods that initialize page output
manually, e.g. `core_get_fragment`, which can mess with third party
proxies that modify data in transit because of the current default
response type header (text/html).

Co-authored-by: Mario Torres
---
 lib/ajax/service.php | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lib/ajax/service.php b/lib/ajax/service.php
index 46218adf3a368..469067a3b03c3 100644
--- a/lib/ajax/service.php
+++ b/lib/ajax/service.php
@@ -115,4 +115,5 @@
     header('Accept-Ranges: none');
 }
 
+header('Content-Type: application/json; charset=utf-8');
 echo json_encode($responses);