Auto-scrolling does not work with quicknanobrowser example

On windows one can perform "auto-scroll" by clicking the mouse wheel and moving the mouse up and down.

With the official simplebrowser example this works like expected but with the Qt Quick quicknanobrowser example it is not working as expected. The page immediately jumps to the top and it seems to only scroll to the top and it won't scroll to the bottom of the view.

Way to reproduce:
1) Build and run quicknanobrowser with Qt 6.6.1
2) Open a web page which has enough content to do the scrolling
3) click the mouse wheel and move the mouse up and down