Make "OK" button active in dialog box after Delete key when deleting an entry

Selecting an entry and hitting the Delete key from the web site version opens a simple dialog

"Delete Items?
Delete the selected entries?"

with the choice of two buttons, Cancel or OK. Neither button is active, meaning the user has to switch from keyboard to mouse and click the OK button to delete the item. Making the OK button active in the dialog would allow the user to confirm deletion by hitting the Enter key, avoiding the need to switch back and forth.