crossdomain-selector/lib/makeScreenshot.js

Gets a selector from another site by screenshot

const puppeteer = require('puppeteer');

/**
 * Go to the given site and make screenshot
 * @param site
 * @param docker
 * @returns {Promise<*>}
 */

module.exports = async ({ site, docker }) => {
  let browser;

  if (docker) {
    browser = await puppeteer.launch({
      executablePath: '/usr/bin/chromium-browser',
      args: ['--no-sandbox', '--headless'],
    });
  } else browser = await puppeteer.launch({ args: ['--no-sandbox', '--headless'] });

  const page = await browser.newPage();

  await page.goto(site);
  await page.waitFor(2000);
  const screen = await page.screenshot({ fullPage: true, encoding: 'base64' });
  await browser.close();

  return screen;
};