Diacritics
Selectize can handle diacritics. Try typing "côte d'ivoire" or "são
Html
<select id='diacritics'>
  <option>Åland Islands</option>
  <option>Helô</option>
  <option>déjà vu</option>
</select>
Javascript
$("#diacritics").selectize({
  delimiter: ",",
  persist: false,
  maxItems: null,
  create: function (input) {
    return {
      value: input,
      text: input,
    };
  }
});