text: /**
   * Copyright 2020 Google LLC
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *      http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  // Assign handler to message event
  window.addEventListener('message', handleMessage, false);
  
  function handleMessage(ev) {
    if(ev.data.reason) {
      log(ev.data.reason)
      getResponse(ev.data.reason)
    }
    if(ev.data.msg){
      getResponse(ev.data.msg)
      top.postMessage({msg:ev.data.msg},'*')
    }
  }
  
  function log(html) {
    document.body.innerHTML += html
  }
  
  
  function getResponse(msg) {
    x = new XMLHttpRequest();
    x.addEventListener("load", gotResponse);
    x.open("POST","/chatting");
    x.setRequestHeader("Content-Type","application/x-www-form-urlencoded")
    x.send(`msg=${encodeURIComponent(msg)}`)
  }
  
  function gotResponse(data) {
    resp = JSON.parse(this.response);
    top.postMessage({resp:resp.msg},'*')
  }
  