IAMOTZ

const puppeteer = require('puppeteer');

const vote = async () => {
  let browser = null;
  try {
    const voteUrl = 'https://www.mtvema.com/en-africa/vote/';

    browser = await puppeteer.launch({ headless: true });

    let page = await browser.newPage();

IAMOTZ

Error:

CI pipeline buld fails with an error looking like this:

error Your lockfile needs to be updated, but yarn was run with `--frozen-lockfile`.
info Visit https://yarnpkg.com/en/docs/cli/install for documentation about this command.

Cause:

• The CI tool is trying to install project dependencies using yarn install --frozen-lockfile

IAMOTZ

const puppeteer = require('puppeteer');

(async () => {
  const browser = await puppeteer.launch();
  const page = await browser.newPage();
  
  const elementSelector = 'div.some-class';
  await page.waitForFunction(selector => !elem, {}, elementSelector);
  // Now, the element is not more in the DOM