diff --git a/frontend/app/player/MessageDistributor/managers/DOMManager.ts b/frontend/app/player/MessageDistributor/managers/DOMManager.ts
index 685a34f2c..df8ab4077 100644
--- a/frontend/app/player/MessageDistributor/managers/DOMManager.ts
+++ b/frontend/app/player/MessageDistributor/managers/DOMManager.ts
@@ -271,7 +271,7 @@ export default class DOMManager extends ListWalker<Message> {
             logger.warn("No iframe doc", msg, node, node.contentDocument);
             return;
           }
-          this.nl[ msg.id ] = doc
+          this.nl[ msg.id ] = doc.documentElement
           return;
         } else if (node instanceof Element) { // shadow DOM
           try {