title: Getting 400's from aws ELB hostcheck to work with django ALLOWED_HOSTS in aws ECS under awsvpc networking mode?
body: <p>When moving over to ECS with awsvpc networking mode, my ALB says all my hosts are unhealthy because checking <code>/status/</code> yields 400s. I've narrowed it down to the issue being something wrong with ALLOWED_HOSTS.</p>
  
  <p>How do I get my web app to give 200's to the ELB Healthchecker?</p>