title: Why is Plunker not loading AngularJS?
body: <p>I opened a clean plunker editor, added Angular to it and wrote an expression. It does not work however.</p>
  
  <p>The <a href="http://plnkr.co/edit/1toaYAuabUm1BEwTPdjl?p=preview" rel="nofollow">link</a>.</p>
  
  <p>The code:</p>
  
  <pre><code>&lt;!DOCTYPE html&gt;
  
      &lt;html&gt;
  
  
  
      &lt;head data-ng-app=""&gt;
          &lt;script data-require="angular.js@*" data-semver="2.0.0-alpha.31" src="https://code.angularjs.org/2.0.0-alpha.31/angular.js"&gt;&lt;/script&gt;
          &lt;link href="style.css" rel="stylesheet" /&gt;
          &lt;script src="script.js"&gt;&lt;/script&gt;
        &lt;/head&gt;
  
        &lt;body&gt;
          &lt;h1&gt;Hello Plunker!&lt;/h1&gt;
          &lt;div&gt;
            {{ 1 + 1 }}
          &lt;/div&gt;
        &lt;/body&gt;
  
      &lt;/html&gt;
  </code></pre>
  
  <p>I am new to both Angular and Plunker. I'm using Firefox. Can anyone help me?</p>