Board Thread:Support Requests - Getting Technical/@comment-25345391-20130521045932/@comment-3335785-20130521094321

does indeed work on Wikia.

I'm not quite sure why they told you that pure javascript would work for this as any more than 200 members in a category requires another page to be generated. I guess it's possible for less than 200 members, but it's not the easiest thing to do.

I don't think sortkeys applies to Special:AllPages, regardless of what you try. As far as I know AllPages is unsortable in that respect.