fix: allow CORS for Contentstack and its subdomains

netlify.toml

@@ -1,3 +1,11 @@
+[[headers]]
+  for = "/*"
+
+  [headers.values]
+    Access-Control-Allow-Origin = "https://*.contentstack.com"
+    Access-Control-Allow-Methods = "GET, HEAD"
+    Access-Control-Allow-Headers = "*"
+
 [[redirects]]
   from = "/*"
   to = "/index.html"