ember/template-no-abstract-roles The HTML attribute role must never have the following values: command composite input landmark range roletype section sectionhead select structure widget window Examples This rule forbids the following: <div role='window'> Hello, world! </div> This rule allows the following: <div role='button'> Push it </div> References See https://www.w3.org/TR/wai-aria-1.0/roles#abstract_roles