diff --git a/plugin-designs/research-map-plus-grid/scripts/check-no-free-identifiers.mjs b/plugin-designs/research-map-plus-grid/scripts/check-no-free-identifiers.mjs
index 91272e3de..e546b6834 100644
--- a/plugin-designs/research-map-plus-grid/scripts/check-no-free-identifiers.mjs
+++ b/plugin-designs/research-map-plus-grid/scripts/check-no-free-identifiers.mjs
@@ -52,7 +52,7 @@ const GLOBALS = [
   'Promise', 'Set', 'Map', 'WeakMap', 'WeakSet', 'Date', 'RegExp', 'Proxy', 'Reflect', 'BigInt',
   'Error', 'TypeError', 'RangeError', 'SyntaxError', 'Infinity', 'NaN', 'undefined',
   'parseInt', 'parseFloat', 'isNaN', 'isFinite', 'encodeURIComponent', 'decodeURIComponent',
-  'encodeURI', 'decodeURI', 'structuredClone', 'queueMicrotask', 'crypto',
+  'encodeURI', 'decodeURI', 'structuredClone', 'queueMicrotask', 'crypto', 'atob', 'btoa',
   'setTimeout', 'clearTimeout', 'setInterval', 'clearInterval',
   'requestAnimationFrame', 'cancelAnimationFrame', 'requestIdleCallback',
   'fetch', 'Headers', 'Request', 'Response', 'AbortController', 'AbortSignal',