Neither does the search, tested on Mac OSX 10.10 on firefox, safari and chrome, none works.
Another user reported that the javascript involved fails or is missing or anything (I’m no web gui).
It does need fixing, but best current solution imho is to install doxygen and generate local docs from the source. That way you can also carry the docs around with you if / when you’re working offline.
Seems a little silly that we constantly have to send people to two third party sites whenever users make complaints or enquires about the state of the current online docs. I’ve said it before, but why oh why can’t JUCE host doxygen generated docs on the JUCE github page?