jQuery UI Autocomplete JSON gives error: Uncaught TypeError: Cannot use 'in' operator to search for '62' in

Question

I am having a great deal of trouble getting autocomplete to work on my page. When I enter 2 characters (\"OW\") into my search input, I get the preloader image (see below),

Answer 1

a little help that can be useful:

if you're using json, it might be that the "json object" isn't parsed, or you've overwritten the variable with others tings (like what I did stupidly recently).

for the first problem, be sure that your server know "application/json" MIME type, else use header (for PHP)

I mean, in PHP, use this before all:

header("Content-type: application/json");