I’m working on a web application that needs to perform automated actions using a headless browser on the server. The app connects to Facebook through their API to get user data like posts and links from their timeline.
Right now I can successfully authenticate users and grab their feed content using the official Facebook SDK. After collecting all the URLs and data I need, I want to send this info to my headless browser setup so it can automatically navigate to these pages.
The issue I’m running into is that when the automated browser tries to access these pages, it’s not authenticated as the original user. I need a way to transfer the user’s login state to the headless browser session so it can act on their behalf.
Has anyone found a working solution for this kind of authentication transfer? What’s the best approach to maintain user sessions across different browser instances?
just copy your cookies from the regular browser and plug em into your headless one. puppeteer is super straightforward with that. once you log in and grab those auth cookies, your session should stay active.
Been dealing with this for two years. Cookie transfer works, but Facebook kills sessions fast so timing matters. I built middleware that grabs everything - cookies, local storage, session storage - right after auth. Then I serialize it and inject into the headless browser before it starts navigating. The pain point is token refresh. Facebook tokens expire and you’ve got to catch those refresh events in your main session, then update the headless instance. Also heads up - Facebook will kill your original session if it spots multiple sessions running from the same account.
I’ve hit similar issues with scrapers that need to stay logged in. Cookies work, but grab localStorage and sessionStorage data too - most modern apps store auth tokens there. Facebook’s a pain because they use device fingerprinting and IP tracking on top of everything else. You’ll probably need to copy the user agent and other browser details from the original session or their bot detection will flag you. Honestly, if you’re already using Facebook’s SDK, just work with OAuth tokens directly. Skip the session transfer headache and either pass access tokens to your headless browser for API calls or inject them into the page. Way more reliable and doesn’t piss off Facebook’s terms as much.