The autocomplete is showing all the elements instead of showing only the query.

[ghost]

I am working with this autocomplete js plugin. I have an issue where if I enter a search query it shows all the entry instead of showing the matching one. For example lets say I am working with list of countries, If I enter Afg it shows all the countries in the order it was used in the data-autocomplete file while just highlighting the Afg in Afghanistan.