'use strict'

exports.handler = async (event) => {
  // event.headers : Object
  // event.queryStringParameters : Object (null if empty)
  // event.body : String (null if empty)

  return {
    statusCode: 200,
    body: JSON.stringify(event)
  }
}

@@ -204,16 +204,69 @@
 e: 200,%0A
+    headers: %7B 'Content-type': 'application/json' %7D,%0A
     body

Update http-handler-template.js