page.goto() method generates `Error: net::ERR_CONNECTION_RESET` error

Steps to reproduce

My environment: (also, I got the same error on https://try-puppeteer.appspot.com/)

• Puppeteer version: v0.13.0
• Platform / OS version: MacOS Sierra 10.12.6
• URLs (if applicable): http://www.personalentwicklungsberatung.de/Arbeitszeugnis/Arbeitszeugnis_-_Bewertungen/arbeitszeugnis_-_bewertungen.html

Reproduce the problem:

const browser = await puppeteer.launch();

const page = await browser.newPage();
await page.goto('http://www.personalentwicklungsberatung.de/Arbeitszeugnis/Arbeitszeugnis_-_Bewertungen/arbeitszeugnis_-_bewertungen.html');

console.log(await page.content());
await page.screenshot({path: 'screenshot.png'});

await browser.close();

After running the code block above, I got Error: net::ERR_CONNECTION_RESET error.

[alirezadarban]

That’s the website server rejecting chrome headless as a client.

I fixed this problem! I changed userAgent in the headers. By that, website server assumed it was a request from a browser and everything is OK!

(async function main() {
    try {
        const browser = await puppeteer.launch({headless: true});
        const page = await browser.newPage();
        await page.setUserAgent('Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/68.0.3419.0 Safari/537.36');
        await page.goto('http://example.com');
         //your code
         await browser.close();
    }
    catch(e){
        console.log(e);
    }
})();

[aslushnikov]

That’s the website server rejecting chrome headless as a client.