{
  "id" : "003cd6f4-5c8c-4905-a595-e9fa670c7155",
  "name" : "reqopt_optional_string_header",
  "request" : {
    "url" : "/reqopt/optional/string/header",
    "method" : "POST"
  },
  "response" : {
    "status" : 200,
    "headers" : {
      "X-Powered-By" : "Express",
      "Vary" : "Origin",
      "Access-Control-Allow-Credentials" : "true",
      "Access-Control-Expose-Headers" : "x-ms-request-id,foo-request-id,Content-Type,value,Location,Azure-AsyncOperation,Retry-After",
      "Date" : "Thu, 18 Oct 2018 17:39:30 GMT",
      "Connection" : "keep-alive"
    }
  },
  "uuid" : "003cd6f4-5c8c-4905-a595-e9fa670c7155",
  "persistent" : true,
  "insertionIndex" : 529
}