Twitter typeaheads autocomplete fails with dots (.), dashes (-) and ampersands (&) in

Question

We're using the twitter typeaheads and it auto completes the value, until you type a dot, slash or &. Then the auto complete does not show any values.

So if I type South, it will show South&Dakota and South&Carolina, but when I type the '&' it does not show any values.

According to this link on github the tokenizers might be the solution, but I can't find a workable solution. Any ideas or assistance?

var states = new Bloodhound({
    datumTokenizer: Bloodhound.tokenizers.obj.nonword('value'),
    queryTokenizer: Bloodhound.tokenizers.whitespace,
    local: states
});

states.initialize();
$('#txtState').typeahead({
    hint: true,
    highlight: true,
    minLength: 1
}