diff --git a/packages/core/src/event_delegation_utils.ts b/packages/core/src/event_delegation_utils.ts
index f4d296b33f8..9e141081033 100644
--- a/packages/core/src/event_delegation_utils.ts
+++ b/packages/core/src/event_delegation_utils.ts
@@ -9,7 +9,7 @@
 // tslint:disable:no-duplicate-imports
 import {EventContract} from '@angular/core/primitives/event-dispatch';
 import {Attribute} from '@angular/core/primitives/event-dispatch';
-import {InjectionToken, Injector} from './di';
+import {InjectionToken} from './di';
 import {RElement} from './render3/interfaces/renderer_dom';
 
 export const DEFER_BLOCK_SSR_ID_ATTRIBUTE = 'ngb';
@@ -20,16 +20,6 @@ declare global {
   }
 }
 
-export function invokeRegisteredDelegationListeners(event: Event) {
-  const handlerFns = (event.currentTarget as Element)?.__jsaction_fns?.get(event.type);
-  if (!handlerFns) {
-    return;
-  }
-  for (const handler of handlerFns) {
-    handler(event);
-  }
-}
-
 export function setJSActionAttributes(
   nativeElement: Element,
   eventTypes: string[],
@@ -112,7 +102,7 @@ export const JSACTION_EVENT_CONTRACT = new InjectionToken<EventContractDetails>(
 
 export function invokeListeners(event: Event, currentTarget: Element | null) {
   const handlerFns = currentTarget?.__jsaction_fns?.get(event.type);
-  if (!handlerFns) {
+  if (!handlerFns || !currentTarget?.isConnected) {
     return;
   }
   for (const handler of handlerFns) {