From af9a1a017203cff7ad029838fff6e2df44e8d2a1 Mon Sep 17 00:00:00 2001
From: Aliullov Vlad <vladislav.aliullov@devexpress.com>
Date: Fri, 1 Sep 2023 17:21:21 +0400
Subject: [PATCH] Fix "Invalid value used as weak map key" error (T1186521)

+ move test to other topic
---
 packages/devextreme/js/events/core/events_engine.js | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/packages/devextreme/js/events/core/events_engine.js b/packages/devextreme/js/events/core/events_engine.js
index d430cc257901..f89cb02dec6e 100644
--- a/packages/devextreme/js/events/core/events_engine.js
+++ b/packages/devextreme/js/events/core/events_engine.js
@@ -4,7 +4,7 @@ import domAdapter from '../../core/dom_adapter';
 import { getWindow, hasWindow } from '../../core/utils/window';
 const window = getWindow();
 import injector from '../../core/utils/dependency_injector';
-import { isWindow, isFunction, isString } from '../../core/utils/type';
+import { isWindow, isFunction, isString, isObject } from '../../core/utils/type';
 import Callbacks from '../../core/utils/callbacks';
 import errors from '../../core/errors';
 import hookTouchProps from '../../events/core/hook_touch_props';
@@ -114,10 +114,7 @@ const eventsEngine = injector({
             const parents = [];
             const getParents = function(element) {
                 const parent = element.parentNode
-                    ?? (typeof element.host === 'object'
-                        ? element.host
-                        : null
-                    );
+                    ?? (isObject(element.host) ? element.host : null);
                 if(parent) {
                     parents.push(parent);
                     getParents(parent);