If I go to http://unicorn.wmflabs.org/winter/index.html?page=H%C3%A5kan_Juholt I can see the article, but if I search for "Håkan Juholt" (without the " " ) and press it in the list, is shows nothing, but a white screen.
Topic on Talk:Winter
Josve05a: Probably a bug in the way the prototype handles the JSON queries for the search suggestions. It won't happen in the production instance, though.