Nesting of Buttons and Headings

Natural Tabbability

and some other text

aria role button and some text

aria role button div role heading

Heading Tabbable, With Button Still Tabbable

and some other text

aria role button and some text

aria role button div role heading

Heading Tabbable, With Button Not Tabbable

and some other text

aria role button and some text

aria role button div role heading