title: Uncaught DOMException: Failed to execute 'define' on 'CustomElementRegistry' (Polymer 2.0)
body: <p>I'm facing this issue while running <strong>polymer init</strong> on polymer-cli. </p>
  
  <blockquote>
    <p>Uncaught DOMException: Failed to execute 'define' on 'CustomElementRegistry'</p>
  </blockquote>