Error: unable to get local issuer certificate while running yarn command
<p>I have my own private npm registry <code>http://something</code>. I installed yarn and trying to run following command.</p>

<pre><code>yarn
</code></pre>

<p>But it is giving following error.</p>

<pre><code>Trace: 
  Error: unable to get local issuer certificate
      at Error (native)
      at TLSSocket.&lt;anonymous&gt; (_tls_wrap.js:1017:38)
      at emitNone (events.js:67:13)
      at TLSSocket.emit (events.js:166:7)
      at TLSSocket._init.ssl.onclienthello.ssl.oncertcb.TLSSocket._finishInit (_tls_wrap.js:582:8)
      at TLSWrap.ssl.onclienthello.ssl.oncertcb.ssl.onnewsession.ssl.onhandshakedone (_tls_wrap.js:424:38)
</code></pre>

<p>I found couple of github issue and resolution as well.</p>

<p><a href="https://github.com/yarnpkg/yarn/issues/841" rel="noreferrer">https://github.com/yarnpkg/yarn/issues/841</a>
<a href="https://github.com/yarnpkg/yarn/commit/b0611a6ee5220b0b1e955b271b6140640158f96c" rel="noreferrer">https://github.com/yarnpkg/yarn/commit/b0611a6ee5220b0b1e955b271b6140640158f96c</a> (Available in 0.16.0)</p>

<p>Looks like i have to set <code>strict-ssl</code> to false in yarn config. I am unable to find exactly how can I do that. I tried giving option in following ways in package.json but didn't work.</p>

<p>1)</p>

<pre><code>{
config: {
"strict-ssl": false
}
}
</code></pre>

<p>2) </p>

<pre><code>{
"strict-ssl": false
}
</code></pre>

<p>But still I am getting same error. Where am I doing wrong?</p>