https://i.loli.net/2017/09/02/59aaa26b695ac.jpg
左边 CHROME,右边 FIREFOX
UA:Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/60.0.3112.113 Safari/537.36
左边 CHROME,右边 FIREFOX
UA:Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/60.0.3112.113 Safari/537.36