enable non strict-ssl install option

[p2227]

os:win7 x64
cmd: npm i optipng-bin

error info:

> optipng-bin@3.1.1 postinstall D:\xxxxx\node_modules\optipng-bin
> node lib/install.js

  ‼ unable to verify the first certificate
  ‼ optipng pre-build test failed
  i compiling from source

i know that the error unable to verify the first certificate cause by an https download over proxy but use strict ssl.

we can config strict-ssl:false in npm config. (npm config set strict-ssl false)

how can i enable non strict-ssl download via some envionment variables or function arguments ?

I fount that the error may be cause by bin-build download caw or got

[shinnn]

https://docs.npmjs.com/misc/config#environment-variables

NPM_CONFIG_STRICT_SSL=false should work.

[p2227]

@shinnn

would you mean
set NPM_CONFIG_STRICT_SSL=false&&npm i optipng-bin?

it still get the error.

[shinnn]

"How to set npm config via environment variables?" is not an issue with optipng-bin. Go to https://stackoverflow.com/ or https://github.com/npm/npm/issues instead.

[p2227]

@shinnn
there may be a misunderstanding.
you mean download from http://registry.npmjs.org/optipng-bin width non strict-ssl mode.

my issue is about the code:

optipng-bin/lib/install.js

Line 14 in d54b2c3

.src('http://downloads.sourceforge.net/project/optipng/OptiPNG/optipng-0.7.6/optipng-0.7.6.tar.gz')

it need to download from http://downloads.sourceforge.net/project/optipng/OptiPNG/optipng-0.7.6/optipng-0.7.6.tar.gz this url will redirct to an https url . the error unable to verify the first certificate occur during that

[shinnn]

Yes, I misunderstood. Sorry.

Currently this module doesn't refer strict-ssl option. Instead, you can use HTTPS_PROXY enviroment variable or http-proxy npm config. Does HTTPS_PROXY work for you?

[p2227]

I alrealy set HTTPS_PROXY .but it still get the error.

[p2227]

i had solve the same problem .

electron-userland/electron-prebuilt#91

https://github.com/mramato/electron-prebuilt/blob/6ade629a73df6222bda245c980a16542336ab1e2/install.js#L39

we should specifies strictSSL parameter to download.

but electron-download is base on nugget. I think it's the cause of the problem.

[p2227]

I'm sorry.
the error code is

optipng-bin/lib/index.js

Line 6 in b2bcc63

var url = 'https://raw.github.com/imagemin/optipng-bin/v' + pkg.version + '/vendor/';

and when the BinWrapper run method is called.

but it doesn't matter. we all think that't it should make a PR to download