title: Prevent selenium grid from randomly closing remote sessions
body: <p>I'm running into a problem where Selenium Grid randomly closes the session running on my test machine. Sounds like a lot like the following reported issue:</p>
  
  <p><a href="http://code.google.com/p/selenium/issues/detail?id=4156" rel="nofollow">http://code.google.com/p/selenium/issues/detail?id=4156</a></p>
  
  <p>This primarily happens during my testing so if my test fails for whatever reason and it doesn't get to the method where I close the session i.e "driver.close()" the session will continue to run. If I need to fix something and restart my test the session starts up normally but the Grid will randomly close the session and I see the following message in the node console:</p>
  
  <pre><code>Executing: [delete session: .... ] at URL: /sesssion/....
  </code></pre>
  
  <p>It's really annoying to say the least, does anyone know of a way to close the session completely without having to restart the node or grid?</p>