I guess it is because that without dragOver event handler, default event handler of dragOver event is used, thus, no drop event is triggered after that. There is a need with e.preventDefault
for dragOver event before drop event.
I guess it is because that without dragOver event handler, default event handler of dragOver event is used, thus, no drop event is triggered after that. There is a need with e.preventDefault
for dragOver event before drop event.