Answer by evandro777 for Sending multipart/formdata with jQuery.ajax

I just built this function based on some info I read.

Use it like using .serialize(), instead just put .serializefiles();.
Working here in my tests.

//USAGE: $("#form").serializefiles();(function($) {$.fn.serializefiles = function() {    var obj = $(this);    /* ADD FILE TO PARAM AJAX */    var formData = new FormData();    $.each($(obj).find("input[type='file']"), function(i, tag) {        $.each($(tag)[0].files, function(i, file) {            formData.append(tag.name, file);        });    });    var params = $(obj).serializeArray();    $.each(params, function (i, val) {        formData.append(val.name, val.value);    });    return formData;};})(jQuery);