Spotify search result limit not working

Problem: I am trying limit/confine my search results to only one result. Simply using the parameter "results=1" does not seem to work even on the example page.

If you follow the example at http://developer.echonest.com/sandbox/spotify.html

and use the example URL http://developer.echonest.com/api/v4/song/search?api_key=FILDTEOIK2HBORODV&format=json&results=1&artist=radiohead&title=karma%20police&bucket=id:spotify&bucket=tracks&limit=true

You get lots of results instead of 1. You will need to replace api_key with your own key for this to work.