title: Does the Universal Analytics' Ecommerce plugin have to be required multiple times when using multiple trackers?
body: <p>When using the multiple tracker support in analytics.js Ecommerce tracking...
  <a href="https://developers.google.com/analytics/devguides/collection/analyticsjs/ecommerce#multitracker" rel="nofollow">https://developers.google.com/analytics/devguides/collection/analyticsjs/ecommerce#multitracker</a></p>
  
  <p>Does ecommerce.js have to be required for each tracker?
  Like this... ?</p>
  
  <pre><code>ga('require', 'ecommerce', 'ecommerce.js');  // default tracker object
  ga('myTracker.require', 'ecommerce', 'ecommerce.js');  // tracker for another web property
  </code></pre>