jQuery Autocomplete won't work with integers?

jQuery Autocomplete won't work with integers?

Here's the JSON I'm getting from the PHP and mySQL code:
[{"label":"1001","value":"1001"},{"label":"1002","value":"1002"},
{"label":"1003","value":"1003"},{"label":"1004","value":"1004"}]


It doesn't autocomplete or send JSON when typing "1", "10", or "3", but it will when typing "a", "t", "o" or "q"

Anyone have suggestions on this?

I tried casting to a string, no luck.

Thanks