No Way to Sort Items By Map

In the client, in the 'Item Sets' function, the items no longer tell you on which maps they are not available. In the Game Info section of leagueoflegends.com, the filter by map functions do not work. I got really excited for a second 'cause I thought I could get a Wooglet's on SR...

There should be a filter-by-map function in Item Sets in the client, anyway.