• Electron version: 1.6.7
• Operating system: win7

Expected behavior

env NODE_EXTRA_CA_CERTS should work
node doc https://nodejs.org/dist/latest-v6.x/docs/api/cli.html#cli_node_extra_ca_certs_file

Actual behavior

env NODE_EXTRA_CA_CERTS not work

How to reproduce

electron no run this line
https://github.com/electron/node/blob/dc8fe9d390b1deb32ae2601357a90679cbcc757e/src/node.cc#L4659