openproject/frontend/app/templates/components/accessible_by_keyboard.html

<a data-ng-click='isDisabled || execute()'
   role="link"
   class='{{ linkClass }}'
   ng-disabled="isDisabled || undefined"
   title='{{ linkTitle }}'
   aria-label="{{ ariaLabel }}"
   data-click-on-keypress="[13, 32]">
   <span ng-transclude class='{{ spanClass }}'></span>
</a>