Cach nay that ra rat dongian, cac ban chi can vaophan cai dat(doi voi tat ca cac loai trinh duyet) rui tat mot so thu khi ko can den nhu che do hien thi hinh anh,dem,cookie,khi nao dung den thi bat len.
Con doi voi opera thi ban sd cach tren va ket hop mot cach nua la bamdung khi opera dang tai.chuc cac ban thanh cong!
