title: Web Components and dependencies isolation
body: <p>Do web components really isolate dependencies inside each component?
  I've imported two components in the same page and I get the following error:</p>
  
  <pre><code>Uncaught TypeError: JSON.stringify is not a function
  </code></pre>
  
  <p>Each of the components works fine when is alone in the page. Any ideas of how to fix this?</p>
  
  <p>Thank you.</p>