1 files changed, 4 insertions, 1 deletions
diff --git a/web/app/store/Positions.js b/web/app/store/Positions.js
index 8f185af1..388a3320 100644
--- a/web/app/store/Positions.js
+++ b/web/app/store/Positions.js
@@ -21,6 +21,9 @@ Ext.define('Traccar.store.Positions', {
 
     proxy: {
         type: 'rest',
-        url: 'api/positions'
+        url: 'api/positions',
+        headers: {
+            'Accept': 'application/json'
+        }
     }
 });