diff --git a/html/includes/forms/callback-clear.inc.php b/html/includes/forms/callback-clear.inc.php
index 38d990639..f0fb77576 100644
--- a/html/includes/forms/callback-clear.inc.php
+++ b/html/includes/forms/callback-clear.inc.php
@@ -11,6 +11,7 @@
  * option) any later version.  Please see LICENSE.txt at the top level of
  * the source code distribution for details.
  */
+header('Content-type: text/plain');
 
 if(is_admin() === false) {
     die('ERROR: You need to be admin');
diff --git a/html/includes/forms/callback-statistics.inc.php b/html/includes/forms/callback-statistics.inc.php
index 36a2c4d9d..1b25df57b 100644
--- a/html/includes/forms/callback-statistics.inc.php
+++ b/html/includes/forms/callback-statistics.inc.php
@@ -11,6 +11,7 @@
  * option) any later version.  Please see LICENSE.txt at the top level of
  * the source code distribution for details.
  */
+header('Content-type: text/plain');
 
 if(is_admin() === false) {
     die('ERROR: You need to be admin');
diff --git a/html/includes/forms/notifications.inc.php b/html/includes/forms/notifications.inc.php
index 187f2ee2c..71c615085 100644
--- a/html/includes/forms/notifications.inc.php
+++ b/html/includes/forms/notifications.inc.php
@@ -21,6 +21,7 @@
  * @package LibreNMS
  * @subpackage Notifications
  */
+header('Content-type: application/json');
 
 $status    = 'error';
 $message   = 'unknown error';
diff --git a/html/includes/forms/parse-template-rules.inc.php b/html/includes/forms/parse-template-rules.inc.php
index b5800b50f..7211bc2b2 100644
--- a/html/includes/forms/parse-template-rules.inc.php
+++ b/html/includes/forms/parse-template-rules.inc.php
@@ -13,6 +13,7 @@
  */
 
 if (is_admin() === false) {
+	header('Content-type: text/plain');
     die('ERROR: You need to be admin');
 }
 
@@ -24,5 +25,6 @@ if (is_numeric($template_id) && $template_id > 0) {
     }
 
     $output = array('rule_id' => $rules);
+	header('Content-type: application/json');
     echo _json_encode($output);
 }
diff --git a/html/includes/forms/query-ripenccapi.inc.php b/html/includes/forms/query-ripenccapi.inc.php
index 0e21b12fe..e9af57177 100644
--- a/html/includes/forms/query-ripenccapi.inc.php
+++ b/html/includes/forms/query-ripenccapi.inc.php
@@ -9,6 +9,7 @@
  * option) any later version.  Please see LICENSE.txt at the top level of
  * the source code distribution for details.
  */
+header('Content-type: application/json');
 
 $status    = 'error';
 $message   = 'unknown error';
diff --git a/html/includes/forms/schedule-maintenance.inc.php b/html/includes/forms/schedule-maintenance.inc.php
index d601116ee..40a39e613 100644
--- a/html/includes/forms/schedule-maintenance.inc.php
+++ b/html/includes/forms/schedule-maintenance.inc.php
@@ -13,6 +13,7 @@
  */
 
 if (is_admin() === false) {
+	header('Content-type: text/plain');
     die('ERROR: You need to be admin');
 }
 
@@ -128,5 +129,5 @@ else if ($sub_type == 'del-maintenance') {
         'message' => $message,
     );
 }//end if
-
+header('Content-type: application/json');
 echo _json_encode($response);
diff --git a/html/includes/forms/test-transport.inc.php b/html/includes/forms/test-transport.inc.php
index 05b4dcfdd..81da4e40b 100644
--- a/html/includes/forms/test-transport.inc.php
+++ b/html/includes/forms/test-transport.inc.php
@@ -13,6 +13,7 @@
  */
 
 if (is_admin() === false) {
+	header('Content-type: text/plain');
     die('ERROR: You need to be admin');
 }
 
@@ -50,5 +51,5 @@ if (file_exists($config['install_dir']."/includes/alerts/transport.".$transport.
         }
     }
 }
-
+header('Content-type: application/json');
 echo _json_encode(array('status' => $status));
diff --git a/html/includes/forms/token-item-create.inc.php b/html/includes/forms/token-item-create.inc.php
index 61810287a..7e573b2ac 100644
--- a/html/includes/forms/token-item-create.inc.php
+++ b/html/includes/forms/token-item-create.inc.php
@@ -11,6 +11,7 @@
  * option) any later version.  Please see LICENSE.txt at the top level of
  * the source code distribution for details.
  */
+header('Content-type: text/plain');
 
 if(is_admin() === false) {
     die('ERROR: You need to be admin');
diff --git a/html/includes/forms/token-item-disable.inc.php b/html/includes/forms/token-item-disable.inc.php
index 1f962c020..f05796127 100644
--- a/html/includes/forms/token-item-disable.inc.php
+++ b/html/includes/forms/token-item-disable.inc.php
@@ -11,6 +11,7 @@
  * option) any later version.  Please see LICENSE.txt at the top level of
  * the source code distribution for details.
  */
+header('Content-type: text/plain');
 
 if(is_admin() === false) {
     die('ERROR: You need to be admin');
diff --git a/html/includes/forms/token-item-remove.inc.php b/html/includes/forms/token-item-remove.inc.php
index 4d494672c..4c241bedc 100644
--- a/html/includes/forms/token-item-remove.inc.php
+++ b/html/includes/forms/token-item-remove.inc.php
@@ -11,6 +11,7 @@
  * option) any later version.  Please see LICENSE.txt at the top level of
  * the source code distribution for details.
  */
+header('Content-type: text/plain');
 
 if(is_admin() === false) {
     die('ERROR: You need to be admin');
diff --git a/html/includes/forms/update-notes.inc.php b/html/includes/forms/update-notes.inc.php
index 3750e59d9..521a485bf 100644
--- a/html/includes/forms/update-notes.inc.php
+++ b/html/includes/forms/update-notes.inc.php
@@ -9,6 +9,7 @@
  * option) any later version.  Please see LICENSE.txt at the top level of
  * the source code distribution for details.
  */
+header('Content-type: application/json');
 
 $status    = 'error';
 $message   = 'unknown error';
diff --git a/html/includes/forms/widget-settings.inc.php b/html/includes/forms/widget-settings.inc.php
index fabe6c4aa..10ed3ad57 100644
--- a/html/includes/forms/widget-settings.inc.php
+++ b/html/includes/forms/widget-settings.inc.php
@@ -21,6 +21,7 @@
  * @package LibreNMS
  * @subpackage Widgets
  */
+header('Content-type: application/json');
 
 $status    = 'error';
 $message   = 'unknown error';