Fix maintenance refresh interval

* fix XMLHttpRequest - send after callback is registered
* check for correct type of value - it's a boolean
* return correct content-type in status.php

1 files changed, 1 insertions, 0 deletions

diff --git a/status.php b/status.php
index 1628e824e00..6e7bcea5266 100644
--- a/status.php
+++ b/status.php
@@ -41,6 +41,7 @@ try {
 	if (OC::$CLI) {
 		print_r($values);
 	} else {
+		header('Content-Type: application/json');
 		echo json_encode($values);
 	}