In my Puppeteer script, I use file JS to execute before loading the page:

const preloadFile = fs.readFileSync('./file.js', 'utf8'); const id = await page.evaluateOnNewDocument(preloadFile); 

file.js contains:

const i = setInterval(()=>{ if (window.turnstile) { clearInterval(i) window.turnstile.render = (a,b) => { b.userAgent = navigator.userAgent window.tsCallback = b.callback window.action = b.action window.data = b.cData console.log(b) return 'foo' } } },50) 

This script prints an object (Action, Cdata, Callback...) on the browser console

I want to get this object from puppeter side and be able to call function callback().

I used page.evaluate() but it didn’t work for me