None of the above helped me, but this did:
npm config rm proxy
npm config rm https-proxy
Source: http://jonathanblog2000.blogspot.ch/2013/11/set-and-reset-proxy-for-git-and-npm.html
None of the above helped me, but this did:
npm config rm proxy
npm config rm https-proxy
Source: http://jonathanblog2000.blogspot.ch/2013/11/set-and-reset-proxy-for-git-and-npm.html