The WHATWG and others always thought that browsersniffing wasn't such a good idea.
WHATWG 以及其他项目始终认为嗅探浏览器并非一个好主意。
2
In this release, there is no more browsersniffing, where there are specific if statements for a browser or version.
在这个发布版中，不再需要仔细区分浏览器，因为有一个针对浏览器或版本的特殊if语句。
3
History sniffing has been known for years as a possible way to discover what sites a browser has visited, but this is the first time that anyone has shown it actually happening on the open Internet.