Npm behind a corporate web proxy
For npm to work behind corporate web proxy, 3 configuration command is needed. Make sure, you have them all.
npm config set registry http://registry.npmjs.org/
npm config set proxy http://proxy.company.com:8080
npm config set https-proxy http://proxy.company.com:8080
Similarly, bower callso provide proxy configuration, edit .bowerrc file
{
"proxy": "http://proxy.company.com:8080/",
"https-proxy": "http://proxy.company.com:8080/"
}