使用jQuery和jquery.fileupload.js的文件上传在Firefox over SSL中失败

$('.myForm').on('submit',(function(E) {
var formData = new FormData(this);
    $.ajax({
        type: 'POST',url: url,data: formData,cache: false,contentType: false,processData: false,success: function(data) {
            // do something...
        },error: function(data) {
            // oops...
        }
    });
});