title: html-pdf in meteor EPIPE error
body: <p>I have a Meteor app that renders a PDF server-side using <code>html-pdf</code>. The app is deployed with <code>mup</code>. Locally, everything works fine. Upon deployment, I see this error in the server logs:</p>
  
  <pre><code>events.js:72
          throw er; // Unhandled 'error' event
                ^
  Error: write EPIPE
      at errnoException (net.js:905:11)
      at Object.afterWrite (net.js:721:19)
  error: Forever detected script exited with code: 8
  error: Script restart attempt #1
  </code></pre>
  
  <p>Versions of stuff:</p>
  
  <ul>
  <li>Ubuntu 14.04.2 LTS</li>
  <li>Meteor 1.0.4.2</li>
  <li>Node.js 0.10.37</li>
  <li>mup 0.9.7</li>
  </ul>