Jquery autocomplete, cannot read non-English letters

Question

I used the following tools

https://github.com/devbridge/jQuery-Autocomplete

but it cannot read arabic letter or Kurdish letter, it only reads English.

but when, I try arabic letters or Kurdish letters, it cannot read.

var countries = { "کو": "کوردستان", "tttt": "ttttt Test", "AE": "United Arab Emirates", "AF": "Afghanistan", "AG": "Antigua and Barbuda", "AI": "Anguilla", "AL": "Albania", "AM": "Armenia" }