在Docker的Dockerfile中执行npm install时报错，如下：
Step 4/7 : RUN npm install
---> Running in 7ba60e3eab62
npm ERR! code SELF_SIGNED_CERT_IN_CHAIN
npm ERR! errno SELF_SIGNED_CERT_IN_CHAIN
npm ERR! request to https://registry.npmjs.org/vue-resource failed, reason: self signed certificate in certificate chain
npm ERR! A complete log of this run can be found in:
npm ERR! /root/.npm/_logs/2020-07-21T08_39_47_777Z-debug.log
原因
电脑使用Charles绑了代理，导致npm安装时出错。
解决方法
关掉电脑代理。