examples/pipetobrowser/browser/views/error/component.html

<link rel="import" href="/libs/vendor/polymer/polymer/polymer.html">

<polymer-element name="p2b-error">
  <template>
    <link rel="stylesheet" href="component.css">
    <h2 page-title>Error</h2>
    <h3>Sorry, some of the 1s and 0s got mixed.</h3>
    <h3>{{errorMessage}}</h3>
  </template>
  <script>
    Polymer('p2b-error', {
      errorMessage: null
    });
    </script>
</polymer-element>