diff --git a/platform/chromium/manifest.json b/platform/chromium/manifest.json
index ec6d52683..b55193e1a 100644
--- a/platform/chromium/manifest.json
+++ b/platform/chromium/manifest.json
@@ -51,6 +51,7 @@
       "all_frames": false
     }
   ],
+  "content_security_policy": "script-src 'self'; object-src 'self'",
   "default_locale": "en",
   "description": "__MSG_extShortDesc__",
   "icons": {