diff --git a/netlify.toml b/netlify.toml
index 593d751..595e59f 100644
--- a/netlify.toml
+++ b/netlify.toml
@@ -1,8 +1,8 @@
 [[headers]]
-  for = "/*"
+  for = "/build/rte/csiv.js"
 
   [headers.values]
-    Access-Control-Allow-Origin = "https://*.contentstack.com"
+    Access-Control-Allow-Origin = "https://eu-rte-extension.contentstack.com"
     Access-Control-Allow-Methods = "GET, HEAD"
     Access-Control-Allow-Headers = "*"