Puppeteer get URL from localhost

Question

I have a website where I need to log in. After a short time of loading, Chrome shows the "connection refused" page. At that point, I need to get the URL.

I tried multiple approaches I found online, however, none of them worked in that case.

What I tried

const url = await page.url(); 
console.log(url)    //--> chrome-error://chromewebdata/



const url = await page.evaluate(() => document.location.href);
console.log(url);   //--> chrome-error://chromewebdata/

I also think it has nothing to do with the timing. Because if I try to use puppeteer to click the "Details" Butten everything works well, so I assume the page is loaded propperly at that point.

Answer 1

You could use a Chrome Devtools Protocol session to capture the requests and responses.

const client = await page.target().createCDPSession();
await client.send('Network.enable');

client.on('Network.requestWillBeSent', (e) => {
    if (e.request.url.includes("http://localhost/dead-url")) {
        console.log(e.request.url);
    }
});

While doing that you could also check for e.redirectResponse, but it's going to be there only for a successful redirect.