Doesn't account for HTTP_PROXY or HTTPS_PROXY

[rwols]

In the postinstall script a protoc binary is downloaded from a URL using node-fetch:

node-protoc/scripts/postinstall.js

Line 30 in d1e3575

const response = await fetch.default(releases[release]);

But, neither HTTP_PROXY nor HTTPS_PROXY are being taken into account. This causes the download to hang in environments with a restricted firewall (e.g. some companies).

Would it be possible to account for http proxies?

We could use node-http-proxy-agent if the HTTP_PROXY or the HTTPS_PROXY environment variable is defined: https://stackoverflow.com/questions/60162485/how-to-configure-node-fetch-to-use-the-company-proxy

[rwols]

Ref: node-fetch/node-fetch#195