Li Yan

I also have this issue. Did the author have some questions for solving the issue?

``` import { Window } from 'happy-dom' const document = new Window().document const ul = document.createElement('ul') // There are two cases. // Case 1: It will output `From sub list`...

This is a patch. ```js import UnnestableElements from 'happy-dom/lib/config/UnnestableElements.js' delete UnnestableElements.LI ```