I am using puppeteer for scraping a page (load test application) and I cannot add username and password into this page. Does anyone of you know puppeteer and may help me? This is the code:

(async () => {
    const browser = await puppeteer.launch({headless: false});
    const page = await browser.newPage();
    await page.goto(“https://d22syekf1i694k.cloudfront.net/”, {waitUntil: ‘networkidle2’});
    await page.waitForSelector(‘input[name=username]’);
    await page.type(‘input[name=username]’, ‘Adenosine’);
    await page.$eval(‘input[name=username]’, el => el.value = ‘Adenosine’);
    await browser.close();
})(); ```