Prevent calling method on null

getWindow().$ is null after reattach element.
ckeditor · Dec 29, 2020 · 74eb1de · 74eb1de
1 parent 6220082
commit 74eb1de
Showing 1 changed file with 13 additions and 1 deletion.
diff --git a/core/selection.js b/core/selection.js
@@ -1497,7 +1497,19 @@
 			if ( this._.cache.nativeSel !== undefined )
 				return this._.cache.nativeSel;
 
-			return ( this._.cache.nativeSel = isMSSelection ? this.document.$.selection : this.document.getWindow().$.getSelection() );
+			var s = null;
+			if ( isMSSelection ) {
+				s = this.document.$.selection;
+			} else {
+				var nativeObj = this.document.getWindow().$;
+				if ( nativeObj ) {
+					s = nativeObj.getSelection();
+				}
+			}
+
+			this._.cache.nativeSel = s;
+
+			return s;
 		},
 
 		/**