title: What is returned by Storage.get in AWS Amplify when the file doesn't exist?
body: <p>I'm trying to use AWS Ampify and can't find a good reference. <a href="https://aws.github.io/aws-amplify/media/storage_guide" rel="nofollow noreferrer">A guide</a>, I can find, but not a reference. If I make a call to Storage.get, such as the code snippet below, and test.txt doesn't exist, what is returned?</p>
  
  <pre><code>Storage.get('test.txt')
      .then(result =&gt; console.log(result))
      .catch(err =&gt; console.log(err));
  </code></pre>
  
  <p>I'm finding that it returns a URL that results in a 404. </p>