diff --git a/manifest.json b/manifest.json
index 27e4aaca..3f86e60b 100644
--- a/manifest.json
+++ b/manifest.json
@@ -56,5 +56,9 @@
 
   "web_accessible_resources": [
     "resources/*"
-  ]
+  ],
+  
+  // Require that all types of content should be packaged with the extension
+  "content_security_policy": "default-src 'self'"
+
 }