jest-puppeteer.config.js

module.exports = {
  launch: {
    headless: false, // Enable UI mode
    // slowMo: 250, // slow down by 250ms
    // slowMo: 200, // slow down by 250ms
    // slowMo: 100, // slow down by 250ms
    slowMo: 50, // slow down by 250ms
    // slowMo: 10, // slow down by 250ms

    // headless: process.env.HEADLESS !== 'false',
    // slowMo: process.env.SLOWMO ? process.env.SLOWMO : 0,
    // devtools: true  // Enable devtools

    // PUPPETEER_PRODUCT=firefox npm install
    // product: "chrome",

    // product: 'chrome',  // Launch chrome browser
    // product: 'firefox', // Launch firefox browser
    // ignoreHTTPSErrors: true, // Ignore HTTPS errors during navigation
    // executablePath: "/Applications/Google Chrome", // Path to a browser executable

    // args: ['--window-size=1920,1080'], // Browser windowsize
    args: [
      '--no-sandbox', // Disables the sandbox for all process types that are normally sandboxed. 
      "--start-fullscreen",  // Browser windowsize
      // '--start-maximized'    // Start with maximized windosixe
    ], // chrome arguments
 
    defaultViewport: null, //  Ignore default viewport size
    // defaultViewport: {width:1920,height:1080}, // viewport for each page. Defaults to an 800x600 viewport.
    // defaultViewport: '1120x1680', //  viewport for each page. Defaults to an 800x600 viewport.  ??
    // width: '100', // page width in pixels.    ??
    // height: '100', // page height in pixels.  ??
    // timeout: 60000, // timeout in ms //Maximum time in milliseconds to wait for the browser instance to start. Defaults to 30000 (30 seconds). Pass 0 to disable timeout.

    // , //
    // , //
    // , //
  },
};