#1143: + additional parent check

7 years ago · 1f7036c6c3
1 changed files with 4 additions and 2 deletions
--- a/Sortable.js
+++ b/Sortable.js
@ -643,8 +643,10 @@

 				// #1143: IFrame support workaround
 				_nextTick(function () {
-					rootEl.insertBefore(cloneEl, dragEl);
-					_dispatchEvent(_this, rootEl, 'clone', dragEl);
+					if (dragEl && (dragEl.parentNode === rootEl)) {
+						rootEl.insertBefore(cloneEl, dragEl);
+						_dispatchEvent(_this, rootEl, 'clone', dragEl);
+					}
 				});
 			}