How can I disable automatic filtering in selectize.js? Built-in / plugin / modilfy source?

Question

I have a selectize.js drop-down, which loads a list of items from the server using ajax. The server provides an autocomplete from the given string, so I don't need selectize's native filtering. Besides, I really need to turn it off: The server output may be totally different from selectize's one.

The data is fed into JavaScript objects fine, but selectize doesn't even show a popup, since those items doesn't match selectize's filter. How can I disable or modify native filtering and the matches highlighting algorithm? Either with a built-in option, or with a plugin? Or is the only way to go to modify the source?

EDIT:

searchField: false / function() doesn't work (and documentation doesn't mention them as available option values)

EDIT2:

Eventually came up with this trick: Add a fake field to each item, assign a search string to it and tell selectize to use is as a searchField. But obviously, there should a better way, so the question is still open.

Answer 1

I use this solution (if results from server is ordered correctly):

    score: function() { return function() { return 1; }; },

or this (if need order)

    score: function(search) {
        var score = this.getScoreFunction(search);
        return function(item) {
            return 1 + score(item);
        };
    },

Sifter uses the score function to filter. Result of score must be > 0.

Answer 2

I solved with onInitialize method in selectize parameters:

$("select").selectize({
        onInitialize: function() {
             this.$control_input.attr('readonly', true);
        }
});