title: How to get QUnit to print backtrace on exception?
body: <p>When an exception occurs in my QUnit tests, all it will say is</p>
  
  <pre><code>Died on test #n: message
  </code></pre>
  
  <p>How do I get it to print a backtrace or some other location information so that I can see where the exception occurred?</p>