Index: moodle/mod/lamslesson/lib.php
===================================================================
diff -u -r4e2176b0b4ecf73de22a8f4afd6e1bf355a293c9 -r7c213fca0b500eef6ff18849dea168572436ee6c
--- moodle/mod/lamslesson/lib.php	(.../lib.php)	(revision 4e2176b0b4ecf73de22a8f4afd6e1bf355a293c9)
+++ moodle/mod/lamslesson/lib.php	(.../lib.php)	(revision 7c213fca0b500eef6ff18849dea168572436ee6c)
@@ -1023,7 +1023,7 @@
 	# pass charset as part of headers so it is interpreted correctly
 	# on the LAMS side. See LDEV-2875
 	$headers = array(
-		"Content-Type" =>  "application/x-www-form-urlencoded;charset=UTF-8"
+		"Content-Type" =>  "application/x-www-form-urlencoded;charset=utf-8"
 	);
 	$results = download_file_content($url, $headers, $request);