typeaheadのprefetchが動いていないように見える件 ref: http://qiita.com/morizotter/items/bffd0e256cd4e21e9324

file0.txt

var engine = new Bloodhound({
  datumTokenizer: Bloodhound.tokenizers.obj.whitespace('value'),
  queryTokenizer: Bloodhound.tokenizers.whitespace,
  prefetch: {
    url: "stations.json",
    cacheKey: "change here!"
  }
});

file1.js

engine.clearPrefetchCache();
engine.initialize()

file2.js

var promise = engine.initialize();
promise.done(function(){ 
    booklets.clearPrefetchCache();
});