diff --git a/shared/static/scripts/sx.js b/shared/static/scripts/sx.js
index 43e27c4..d517a25 100644
--- a/shared/static/scripts/sx.js
+++ b/shared/static/scripts/sx.js
@@ -691,6 +691,9 @@
     // Keyword → text
     if (isKw(expr)) return document.createTextNode(expr.name);
 
+    // Pre-rendered DOM node → return as-is
+    if (expr && expr.nodeType) return expr;
+
     // Dict → empty
     if (expr && typeof expr === "object" && !Array.isArray(expr)) return document.createDocumentFragment();