title: Django request is loop when request take long time
body: <p>I have an issue when making a submit form POST request. Sometimes My request is being looped when it takes a long time to respond. Somehow a new request similar to the previous request is made, and I don't know where is it from? I have tried to debug, create traceback, but have no idea where is it called. It usually happens when the request is made from the Chrome Browser on macOS. Do you guys have any idea why does it happen?</p>
  
  <p>Django version 1.11.17</p>
  
  <p>I use uWSGI for hosting services. I use HTop to debug. I have noticed that whenever the request is looped, the process is running again. Is it cause the bug</p>
  
  <p><a href="https://i.stack.imgur.com/2CtNe.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/2CtNe.png" alt="enter image description here"></a></p>
  
  <p>I have made a simple test. calling function with sleep</p>
  
  <pre><code>@login_required()
  def main(request):
      for i in xrange(1200, 0, -1):
          if i == 1200:
              logger.info('--Start--')
          logger.info('Sleep {}'.format(str(i)))
          sleep(1)
  </code></pre>
  
  <p>Here is the log when the request is a call again.</p>
  
  <p>First time</p>
  
  <p><a href="https://i.stack.imgur.com/fFA4F.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/fFA4F.png" alt="enter image description here"></a></p>
  
  <p>Loop Happen</p>
  
  <p><a href="https://i.stack.imgur.com/P4DZG.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/P4DZG.png" alt="enter image description here"></a></p>