Puppeteer 不会在 heroku 上评估网络应用程序

Question

I'm using puppeteer on my telegram bot to fetch stuff from the web. Locally, it's all work just fine, but here is the catch:

When trying to fetch the URL's HTML, the given response is not the HTML file, but the web app with all the js files. On my local machine - I'm getting the HTML file with all needed links.

That's my code:

 return await puppeteer.launch({ args: ['--no-sandbox', '--disable-setuid-sandbox'], headless: true, }).then(async browser => { const page = await browser.newPage() page.setJavaScriptEnabled(true) await page.goto(targetUrl) await page.waitForTimeout(2000) const data = await page.$$eval(SELECTORS, (res) => { return res.map(r => { return r.getAttribute('ATRR') }) }) as never as string[] ....... })

PS -------------- already added this repo to Heroku:

https://github.com/jontewks/puppeteer-heroku-buildpack

Answer 1

Apparently, when you are using puppeteer-extra , you need to install puppeteer library too.

For some reason, they both depend BUT not auto-installed, so the Chromium engine didn't install on Heroku, and it does explain how it does on my local machine - which has it by default.