Installation script fails behind proxy

[nisargjhaveri]

The script install.js which runs on installation fails downloading from http://dl.nwjs.io/v* behind proxy.

both $http_proxy shell variable and npm config proxy are set properly.

Probably problem with the download package that is being used, which uses a package called got which apparently does not support proxy like this.

It would be great if we can fix this. I am ready to assist if I can be useful.

Thanks.

[nisargjhaveri]

Also, it seems like npm is not up-to-date with this repo.

[shama]

Related issue sindresorhus/got#7

[shama]

@nisargjhaveri Could you test if adding the option proxy: process.env.http_proxy to Download in scripts/install.js fixes the issue for you?

[nisargjhaveri]

No it doesn't help adding proxy: process.env.http_proxy to new Download() call along with extract: true and other options.

[shama]

I don't really have an easy way to tests this. So a PR that fixes this for you would be appreciated. Thanks!