I did not use them much, except for writing a small polyfill library, so I cannot produce a meaningful critique.
abort(reason) { closed = true; chunks.length = 0; },
，详情可参考同城约会
ITmedia NEWS���[���}�K�W���ŐV�� �e�N�m���W�[�g�����h���T3�z�M，这一点在PDF资料中也有详细论述
P3P 1.0 on RELAX-NG, Yutaka Furubayashi，推荐阅读Line官方版本下载获取更多信息