报错信息：谷歌镜部分像被墙掉了
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! chromedriver@2.46.0 install: `node install.js`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the chromedriver@2.46.0 install script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.
解决方法
npm install chromedriver --chromedriver_cdnurl=http://cdn.npm.taobao.org/dist/chromedriver
log日志：