diff --git a/core.js b/core.js
index <HASH>..<HASH> 100644
--- a/core.js
+++ b/core.js
@@ -3677,7 +3677,7 @@ const _makeWindow = (options = {}, parent = null, top = null) => {
       return _parseDocumentAst(htmlAst, window[optionsSymbol], window, false);
     }
   };
-  window.Buffer = Buffer; // XXX non-standard
+  // window.Buffer = Buffer; // XXX non-standard
   window.Event = Event;
   window.KeyboardEvent = KeyboardEvent;
   window.MouseEvent = MouseEvent;
Remove window.Buffer exposure from toplevel to window context