Check all / Uncheck all links not accessible through keyboard navigation

[Javier Parada]

What is the current behavior?

Currently, if I press the TAB key focusing on the dropdown when it's opened, it will close it, ignoring both check all and uncheck all buttons.

What is the expected behavior?

When you press the TAB key with the dropdown open it will focus on the check all / uncheck all buttons at some point (before or after the options).

Steps to reproduce

• Open the dropdown
• Press the Tab Key.

[Javier Parada]

I've fixed this by adding the missing href attribute to each element created.

I hope you include this in your next release,

Thanks!