Node-red syntax error "Cannot find name 'document'" using function node

Question

I'm getting a syntax error while in the function node code editor (red underline squiggles and triangle):

const puppeteer = global.get('puppeteer');

(async () =>
{
  const browser = await puppeteer.launch({executablePath: '/usr/bin/chromium'});
  const page = await browser.newPage();
  await page.goto('http://church.daford.work:58080', { waitUntil: 'networkidle0'});
  await page.type('#password', 'pwd-here');
  await page.click('#loginBtn');
  // @ts-ignore
  const data = await page.evaluate(() => document.querySelector('*').outerHTML);
  console.log(data);
  await browser.close();
})();

Cannot find name 'document'. Do you need to change your target library?
Try changing the 'lib' compiler option to include 'dom'.(2584)

Where do I do this?

UPDATE: I found I can ignore this error with

// @ts-ignore

and the code works, but I would like to know if there is a better way to handle this.

knolleary · Accepted Answer · 2022-08-11 18:38:35Z

1

Where are you running this code? If this is inside a Node-RED Function node, then that code runs inside a node.js environment, not the browser. This means there is no document object to work with.

If this is somewhere else in Node-RED, please update your question with full details.

answered Aug 11, 2022 at 18:38

knolleary

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