Use interim accessibility solutions so that assistive technologies and older browsers will operate correctly.
For example, older browsers do not allow users to navigate to empty edit boxes. Older screen readers read lists of consecutive links as one link. These active elements are therefore difficult or impossible to access. Also, changing the current window or popping up new windows can be very disorienting to users who cannot see that this has happened.
(... apply until user agents (including assistive technologies) address these issues)