gorhill
diff --git a/‎src/js/resources/prevent-addeventlistener.js‎
Lines changed: 14 additions & 13 deletions b/‎src/js/resources/prevent-addeventlistener.js‎
Lines changed: 14 additions & 13 deletions
@@ -125,22 +125,23 @@ function preventAddEventListener(
         }
         return context.reflect();
     };
+    const protect = owner => {
+        const { addEventListener } = owner;
+        Object.defineProperty(owner, 'addEventListener', {
+            set() { },
+            get() { return addEventListener; }
+        });
+    };
     runAt(( ) => {
         proxyApplyFn('EventTarget.prototype.addEventListener', proxyFn);
-        if ( extraArgs.protect ) {
-            const { addEventListener } = EventTarget.prototype;
-            Object.defineProperty(EventTarget.prototype, 'addEventListener', {
-                set() { },
-                get() { return addEventListener; }
-            });
+        if ( extraArgs.protect ) { protect(EventTarget.prototype); }
+        if ( Object.hasOwn(document, 'addEventListener') ) {
+            proxyApplyFn('document.addEventListener', proxyFn);
+            if ( extraArgs.protect ) { protect(document); }
         }
-        proxyApplyFn('document.addEventListener', proxyFn);
-        if ( extraArgs.protect ) {
-            const { addEventListener } = document;
-            Object.defineProperty(document, 'addEventListener', {
-                set() { },
-                get() { return addEventListener; }
-            });
+        if ( Object.hasOwn(window, 'addEventListener') ) {
+            proxyApplyFn('window.addEventListener', proxyFn);
+            if ( extraArgs.protect ) { protect(window); }
         }
     }, extraArgs.runAt);
 }