diff --git a/components/script/dom/webidls/Document.webidl b/components/script/dom/webidls/Document.webidl
index 6f2f381ce28..37bfc3a12d0 100644
--- a/components/script/dom/webidls/Document.webidl
+++ b/components/script/dom/webidls/Document.webidl
@@ -32,9 +32,9 @@ interface Document : Node {
   HTMLCollection getElementsByTagNameNS(DOMString? namespace, DOMString qualifiedName);
   HTMLCollection getElementsByClassName(DOMString classNames);
 
-  [NewObject, Throws]
+  [CEReactions, NewObject, Throws]
   Element createElement(DOMString localName, optional ElementCreationOptions options);
-  [NewObject, Throws]
+  [CEReactions, NewObject, Throws]
   Element createElementNS(DOMString? namespace, DOMString qualifiedName, optional ElementCreationOptions options);
   [NewObject]
   DocumentFragment createDocumentFragment();