Using a cluster-based Puppeteer script for capturing web screenshots, certain domains unexpectedly trigger a navigation error. Below is an alternative sample code implementation:
const procCluster = require('cluster');
const browserModule = require('puppeteer');
async function captureSnapshot(url) {
const instance = await browserModule.launch({ args: ['--no-sandbox'] });
const tab = await instance.newPage();
try {
await tab.goto('http://' + url, { waitUntil: 'domcontentloaded', timeout: 60000 });
const imageData = await tab.screenshot({ encoding: 'base64' });
return imageData;
} catch (e) {
console.error(`Error loading ${url}:`, e);
} finally {
await tab.close();
await instance.close();
}
}
if (procCluster.isMaster) {
for (let i = 0; i < 4; i++) procCluster.fork();
} else {
process.on('message', async msg => {
const result = await captureSnapshot(msg.url);
process.send({ snapshot: result });
});
}
I have encountered similar issues with Puppeteer where the target closes unexpectedly during navigation. In my experience, these errors can be alleviated by fine-tuning the navigation options. Adjusting the wait strategy to networkidle or experimenting with different timeouts sometimes resolves the issue, especially on websites with heavy asynchronous loading. It is also helpful to monitor any browser events that might be interfering with page stability upon navigation. Verifying network conditions and ensuring that the domain is properly handled in code are other aspects to consider.
I have encountered similar issues when developing web scraping solutions with Puppeteer. The intermittent nature of the target closing error often stems from the page’s asynchronous behavior, which may result in unexpected redirections or premature tab closure. In my case, adopting a more controlled navigation approach, such as sequentially waiting for network connections to settle and introducing slight delays where necessary, greatly reduced these errors. Additionally, incorporating detailed logging around navigation events helped me identify specific points of failure, ultimately improving the overall reliability of my implementation.
hey, i bumped into similar issues. try using a slight delay after page load to let the async stuff settle and maybe use networkidle instead of domcontentloaded. sometimes letting the page chill a bit stops that premature closing. hope this helps!