How to capture network errors in Puppeteer?

To capture network errors in Puppeteer, you can listen for the "requestfailed" event that is emitted by the page object. Here is an example of how you can capture and handle network errors using Puppeteer:

const puppeteer = require('puppeteer');

(async () => {
  const browser = await puppeteer.launch();
  const page = await browser.newPage();

  page.on('requestfailed', request => {
    console.error(`Request ${request.url()} failed with error ${request.failure().errorText}`);
  });

  try {
    await page.goto('https://www.example.com');
  } catch (error) {
    console.error('Page failed to load:', error);
  }

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

In this example, we are listening for the "requestfailed" event and logging the URL of the request that failed along with the error message. Additionally, we are catching any errors that occur during the page navigation and logging them.

By using the event listener for "requestfailed", you can capture and handle network errors in Puppeteer to troubleshoot and address any issues that arise during the automation process.