How to tie Typeahead.js suggestions to a cross domain data source?

http://stackoverflow.com/questions/21520609/how-to-tie-typeahead-js-suggestions-to-a-cross-domain-data-source

by toubia95

HTML

<script src="http://cdnjs.cloudflare.com/ajax/libs/typeahead.js/0.10.4/typeahead.bundle.min.js"></script>
<input class="typeahead">

CSS

@font-face {
    font-family:"Prociono";
    src: url("../font/Prociono-Regular-webfont.ttf");
}
html {
    overflow-y: scroll;
}
.container {
    margin: 0 auto;
    max-width: 750px;
    text-align: center;
}
.tt-dropdown-menu, .gist {
    text-align: left;
}
html {
    color: #333333;
    font-family:"Helvetica Neue", Helvetica, Arial, sans-serif;
    font-size: 18px;
    line-height: 1.2;
}
.title, .example-name {
    font-family: Prociono;
}
p {
    margin: 0 0 10px;
}
.title {
    font-size: 64px;
    margin: 20px 0 0;
}
.example {
    padding: 30px 0;
}
.example-name {
    font-size: 32px;
    margin: 20px 0;
}
.demo {
    margin: 50px 0;
    position: relative;
}
.typeahead, .tt-query, .tt-hint {
    border: 2px solid #CCCCCC;
    border-radius: 8px 8px 8px 8px;
    font-size: 24px;
    height: 30px;
    line-height: 30px;
    outline: medium none;
    padding: 8px 12px;
    width: 396px;
}
.typeahead {
    background-color: #FFFFFF;
}
.typeahead:focus {
    border: 2px solid #0097CF;
}
.tt-query {
    box-shadow: 0 1px 1px rgba(0, 0, 0, 0.075) inset;
}
.tt-hint {
    color: #999999;
}
.tt-dropdown-menu {
    background-color: #FFFFFF;
    border: 1px solid rgba(0, 0, 0, 0.2);
    border-radius: 8px 8px 8px 8px;
    box-shadow: 0 5px 10px rgba(0, 0, 0, 0.2);
    margin-top: 12px;
    padding: 8px 0;
    width: 422px;
}
.tt-suggestion {
    font-size: 18px;
    line-height: 24px;
    padding: 3px 20px;
}
.tt-suggestion.tt-cursor {
    background-color: #0097CF;
    color: #FFFFFF;
}
.tt-suggestion p {
    margin: 0;
}
.typeahead .empty-message {
  padding: 5px 10px;
 text-align: center;
}
.gist {
    font-size: 14px;
}
.example-twitter-oss .tt-suggestion {
    padding: 8px 20px;
}
.example-twitter-oss .tt-suggestion + .tt-suggestion {
    border-top: 1px solid #CCCCCC;
}
.example-twitter-oss .repo-language {
    float: right;
    font-style: italic;
}
.example-twitter-oss .repo-name {
    font-weight: bold;
}
.example-twitter-oss .repo-description {
   ...

JavaScript

var ressources = new Bloodhound({
  datumTokenizer: function datumTokenizer(datum) {
    return Bloodhound.tokenizers.whitespace(datum.value);
  },
  queryTokenizer: Bloodhound.tokenizers.whitespace,
  remote: {
    url:
      "https://repository.ortolang.fr/api/search/suggest?label_fr.autocomplete*=%QUERY&size=6",
    wildcard: "%QUERY",
    filter: function filter(ressources) {
      return $.map(ressources.hits, function (ressource) {
        return {
          value: JSON.parse(ressource).label_fr
        };
      });
    }
  }
});
ressources.initialize();


$('.typeahead').typeahead({
  hint: true,
  highlight: true,
  minLength: 2,
}, {
  name: 'ressources',
  displayKey: 'value',
  source: ressources.ttAdapter()
});

/*
var nbaTeams = new Bloodhound({
  datumTokenizer: Bloodhound.tokenizers.obj.whitespace('team'),
  queryTokenizer: Bloodhound.tokenizers.whitespace,
  prefetch: '../data/nba.json'
});

var nhlTeams = new Bloodhound({
  datumTokenizer: Bloodhound.tokenizers.obj.whitespace('team'),
  queryTokenizer: Bloodhound.tokenizers.whitespace,
  prefetch: '../data/nhl.json'
});

$('#multiple-datasets .typeahead').typeahead({
  highlight: true
},
{
  name: 'nba-teams',
  display: 'team',
  source: nbaTeams,
  templates: {
    header: '<h3 class="league-name">NBA Teams</h3>'
  }
},
{
  name: 'nhl-teams',
  display: 'team',
  source: nhlTeams,
  templates: {
    header: '<h3 class="league-name">NHL Teams</h3>'
  }
});
*/