CascadeSelect: Submenu(list) items go off screen and does not allow vertical scroll bar

[baaskoen]

Describe the bug

As in the reproducer link (https://stackblitz.com/edit/4fw4mp-y1ukj2?file=src%2FApp.vue), if you open the submenu "Australia", you cannot scroll down with your keyboard buttons. By default the list also has no max-height, meaning it will just create a long unfriendly list.

In discord someone helped me with a temporary hotfix which can be seen here: https://stackblitz.com/edit/4fw4mp-1ceoxn?file=src%2FApp.vue

Reproducer

https://stackblitz.com/edit/4fw4mp-y1ukj2?file=src%2FApp.vue

PrimeVue version

3.45.0

Vue version

3.x

Language

TypeScript

Build / Runtime

Vite

Browser(s)

No response

Steps to reproduce the behavior

See the attached stackblitz.

Expected behavior

By default, submenu's and sublists (see also TieredMenu) should have a max height, and should be scrollable with keyboard buttons.

[melloware]

We have an open PrimeReact PR to fix this if you want to port it to PrimeVue

https://github.com/primefaces/primereact/pull/5681

[mertsincan]

Thanks a lot for your report! I set a milestone for it. We'll review it before the milestone is released.