# By default, Fastly does not cache POST requests, and generally
# wanting to return a cached response to a POST request suggests
# you might be doing something odd.  But if you want to, you can,
# you just need to override our defaults.
if (req.method == "POST") {
  
  # POST requests don't qualify for clustering.  If you want to
  # acheive a similar cache hit ratio as GET requests, you'll
  # need to reclassify the request as a GET (which will drop the
  # request body)
  set req.method = "GET";
  return(lookup);
}