The exclusive use of "constructorHandlers" for checking the type may not be optimal.#44

Is it possible to handle Element and HTMLElement uniformly based on "instanceof" when handling all DOM elements, as currently handling them one by one based on their constructors is cumbersome? When there are HTMLElement elements in the input object, it can cause rfdc to freeze. It would be helpful if internal memory leak handling could be implemented, and if the depth of the object hierarchy is too deep, a warning could be given, with the option to only copy specified depths of objects.