[jQuery] Large file upload problem for form plugin

[Gustavs]

Hello.

I'm using jQuery form plugin and there seems to be a problem with
files larger then approximately 10mb. If I try to upload a file that's
smaller then that it does everything correct, but if it's larger then
it just returns empty $_POST and empty $_FILES.

Any ideas on what may be the problem?

Here is the code:

$("#facebox #content_container").ajaxSubmit({
        success: function(data) {
                console.log(data);
        }
});