ARIA in HTML is planning to allow role=combobox on a button and input type=button element.
button role=combobox test case
Additionally, the ARIA in HTML PR adds role=checkbox as an allowed role for input type=button to match the button element allowances. This was an oversight in the spec which this PR will help correct.
ARIA in HTML is planning to allow
role=comboboxon abuttonandinput type=buttonelement.button role=comboboxtest caseAdditionally, the ARIA in HTML PR adds
role=checkboxas an allowed role forinput type=buttonto match thebuttonelement allowances. This was an oversight in the spec which this PR will help correct.