e itself as the binding scope.

```html
<!doctype html>
<html>
<head>
  <meta charset="utf-8">
  <script src="components/webcomponentsjs/webcomponents-lite.js"></script>
  <link rel="import" href="components/polymer/polymer.html">
  <link rel="import" href="components/core-ajax/core-ajax.html">

</head>
<body>

  <template is="dom-bind">

    <core-ajax url="http://..." lastresponse="{{data}}"></core-ajax>

    <template is="dom-repeat" items="{{data}}">
        <div><span>{{item.first}}</span> <span>{{item