Puppeteer PNG + PDF export test

localPuppeteer.js

const puppeteer = require('puppeteer');

async function stall(stallTime = 3000) {
    await new Promise(resolve => setTimeout(resolve, stallTime));
}

(async() => {
    const width = 1024;
    const height = 1280;

    const browser = await puppeteer.launch({
        args: [
            '--no-sandbox',
            `--window-size=${ width },${ height }`
        ],
        timeout: 10000
    });
    var page = await browser.newPage();
    await page.setViewport({
        width: 1024,
        height: 1280,
        deviceScaleFactor: 1
    });
    await page.emulateMedia('screen');

    const url = "http://explorer.altius.org/app/?config=SUFTOi4wT5S79NgyLKPTcg&chr=chr3&start=181500000&stop=181800000";

    await page.goto(url, {
        waitUntil: ['networkidle0', 'domcontentloaded', 'load', 'networkidle2']
    });
    //await stall();                                                                                                                                                                                                                                                            

    // page.pdf() is currently supported only in headless mode.                                                                                                                                                                                                                 
    // @see https://bugs.chromium.org/p/chromium/issues/detail?id=753118                                                                                                                                                                                                        
    await page.pdf({
        path: 'localPuppeteerTest.pdf',
        width: '1024px',
        height: '1280px',
        pageRanges: '1-1'
    });

    await page.screenshot({path: 'localPuppeteerTest.png', fullPage: true});

    await browser.close();
})();