title: gulp trust-dev-cert without error, but access the page still failed
body: <p>After I upgrade my <strong>Nodejs to v9.3.0 and NPM to 5.5.1</strong>, failed to access the gulp serve server. The browser show the <strong>unsafe TLS security error</strong>.
  I have removed <strong><em>~.gcb-serve-data/</em></strong>, and run the <strong>gulp trust-dev-cert</strong> without error, but I cannot find the cert in my trust certificates, I am working in <strong>Win10</strong>.
  Following is the **gulp trust-dev-cert" output:</p>
  
  <pre><code>[18:30:14] Starting gulp
  [18:30:14] Starting 'trust-dev-cert'...
  [18:30:14] Starting subtask 'configure-sp-build-rig'...
  [18:30:14] Finished subtask 'configure-sp-build-rig' after 7.48 ms
  [18:30:14] Starting subtask 'trust-cert'...
  [18:30:14] Finished subtask 'trust-cert' after 79 ms
  [18:30:14] Finished 'trust-dev-cert' after 90 ms
  [18:30:14] ==================[ Finished ]==================
  </code></pre>