@@ -28,7 +28,10 @@ import {
   ɵRuntimeError as RuntimeError,
   type ListenerOptions,
 } from '@angular/core';
-import {ɵRuntimeErrorCode as RuntimeErrorCode} from '../../../index';
+import {
+  ɵdisableThrowOnSyntheticProps as disableThrowOnSyntheticProps,
+  ɵRuntimeErrorCode as RuntimeErrorCode,
+} from '../../../index';
 
 const ANIMATION_PREFIX = '@';
 
@@ -125,9 +128,7 @@ export class AsyncAnimationRendererFactory implements OnDestroy, RendererFactory
     }
 
     // We need to prevent the DomRenderer to throw an error because of synthetic properties
-    if (typeof (renderer as any).throwOnSyntheticProps === 'boolean') {
-      (renderer as any).throwOnSyntheticProps = false;
-    }
+    disableThrowOnSyntheticProps(renderer);
 
     // Using a dynamic renderer to switch the renderer implementation once the module is loaded.
     const dynamicRenderer = new DynamicDelegationRenderer(renderer);
 
@@ -538,6 +538,12 @@ class DefaultDomRenderer2 implements Renderer2 {
   }
 }
 
+export function disableThrowOnSyntheticProps(renderer: Renderer2): void {
+  if (renderer instanceof DefaultDomRenderer2) {
+    renderer.throwOnSyntheticProps = false;
+  }
+}
+
 const AT_CHARCODE = (() => '@'.charCodeAt(0))();
 
 function checkNoSyntheticProp(name: string, nameKind: string) {
 
@@ -9,7 +9,10 @@
 export {ɵgetDOM} from '@angular/common';
 export {BrowserDomAdapter as ɵBrowserDomAdapter} from './browser/browser_adapter';
 export {BrowserGetTestability as ɵBrowserGetTestability} from './browser/testability';
-export {DomRendererFactory2 as ɵDomRendererFactory2} from './dom/dom_renderer';
+export {
+  disableThrowOnSyntheticProps as ɵdisableThrowOnSyntheticProps,
+  DomRendererFactory2 as ɵDomRendererFactory2,
+} from './dom/dom_renderer';
 export {DomEventsPlugin as ɵDomEventsPlugin} from './dom/events/dom_events';
 export {KeyEventsPlugin as ɵKeyEventsPlugin} from './dom/events/key_events';
 export {SharedStylesHost as ɵSharedStylesHost} from './dom/shared_styles_host';
Original file line number	Diff line number	Diff line change
`@@ -538,6 +538,12 @@ class DefaultDomRenderer2 implements Renderer2 {`
`538`	`538`	`}`
`539`	`539`	`}`
`540`	`540`
	`541`	`+export function disableThrowOnSyntheticProps(renderer: Renderer2): void {`
	`542`	`+ if (renderer instanceof DefaultDomRenderer2) {`
	`543`	`+ renderer.throwOnSyntheticProps = false;`
	`544`	`+ }`
	`545`	`+}`
	`546`	`+`
`541`	`547`	`const AT_CHARCODE = (() => '@'.charCodeAt(0))();`
`542`	`548`
`543`	`549`	`function checkNoSyntheticProp(name: string, nameKind: string) {`