text: /**
   * Copyright 2019 The AMP HTML Authors. All Rights Reserved.
   *
   * 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.
   */
  
  const config = require('@lib/config.js');
  const host = config.hosts.platform;
  
  module.exports = {
    validatorRuntime: 'AMP4EMAIL',
    transforms: {
      'html': (el) => {
        el.removeAttr('amp');
        el.removeAttr('⚡');
        el.attr('⚡4email', '');
      },
      'form, a': (el) => {
        el.removeAttr('target');
      },
      'form[action-xhr]': (el) => {
        el.attr('action-xhr', config.absoluteUrl(host, el.attr('action-xhr')));
      },
      'a[href]': (el) => {
        el.attr('href', config.absoluteUrl(host, el.attr('href')));
      },
      'amp-img[src], amp-anim[src], amp-list[src]': (el) => {
        el.attr('src', config.absoluteUrl(host, el.attr('src')));
      },
      'amp-accordion[disable-session-states]': (el) => {
        el.removeAttr('disable-session-states');
      },
      'head > style[amp-boilerplate]':
        '<style amp4email-boilerplate>body{visibility:hidden}</style>',
  
      'head > title': null,
      'head > link': null,
      'head > meta:not([charset])': null,
      'noscript': null,
    },
  };
  