According to the ARIA spec, the TreeView non-parent nodes should not have the aria-expanded. Otherwise they would be incorrectly described to assistive technologies as parent nodes.
Reproduction of the problem
- Open this Demo - https://demos.telerik.com/kendo-ui/treeview/remote-data-binding
- Inspect the li element for a node that has no children e.g Janet Leverling
The bottom nodes shouldn't have an aria-expanded attribute.
- Kendo UI version: 2022.3.913
- Browser: [all]