Different behavior between { headless: false } and { headless: true } · Issue #665 · puppeteer/puppeteer · GitHub
Nothing happens on clicking a button when headless true · Issue #2959 · puppeteer/puppeteer · GitHub
Atempt to open a page with `headless: true` and userDataDir relative path hangs with high CPU load · Issue #3453 · puppeteer/puppeteer · GitHub
![javascript - Puppeteer serving different pages for the same URL Headless vs Headful - Stack Overflow javascript - Puppeteer serving different pages for the same URL Headless vs Headful - Stack Overflow](https://i.stack.imgur.com/v18n9.png)