title: What happens when there is a javascript runtime error?
body: <p>I understand what causes runtime errors. I want to understand how the browser behaves afterwards.</p>
  
  <p>Will event handlers attached before the error still work?</p>
  
  <p>If a script loaded async finishes after a runtime error will it be able to execute?</p>
  
  <p>Basically, how catastrophic is a run-time error?</p>