title: How to do a synchronous XMLHttpRequest in Chrome App?
body: <p>Using the following code:</p>
  
  <pre><code>var xhr = new XMLHttpRequest();
  xhr.open('GET', url, false);
  </code></pre>
  
  <p>Yields the following error:</p>
  
  <p>Uncaught InvalidAccessError: Failed to execute 'open' on 'XMLHttpRequest': Synchronous requests are disabled for this page.</p>
  
  <p>Is it simply not possible, or am I doing it wrong? Do I need extra permissions?</p>