For when you need to test your site in Google Search (Chrome 41).

download_chrome41.js

/**
 * Copyright 2018 Google Inc. 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.
 *
 * @author ebidel@ (Eric Bidelman)
*/

const puppeteer = require('puppeteer');

const LAST_CHROME41_REVISION = '310958';

(async() => {

const browserFetcher = puppeteer.createBrowserFetcher();

const canDownload = await browserFetcher.canDownload(LAST_CHROME41_REVISION);
console.assert(canDownload, `Cannot download Chrome 41 ${LAST_CHROME41_REVISION}`);

const revisionInfo = await browserFetcher.download(LAST_CHROME41_REVISION, (bytes, total) => {
  console.log(`Downloaded ${bytes/total * 100}%`);
});

console.log('Local downloaded chromium revisions:', await browserFetcher.localRevisions());
console.log('Run it with:');
console.log(`${revisionInfo.executablePath} --user-data-dir=./chrome41profile`);

})();