I'm trying to figure out if it's possible to start Puppeteer without a visible interface (headless mode) and later reveal the browser window automatically when an error is encountered during runtime. For example, after executing certain tasks, if an unexpected issue occurs, I want the browser to pop up so that I can inspect what went wrong. Is there a method or setting in Puppeteer that facilitates this dynamic switching from headless mode to a visible mode?
nah, once you launch puppetter in headless, you cant switch it later. u need to restart it with headful enabled if u want make the window visble during errors.
While I have explored this scenario in my projects, I found that Puppeteer does not allow switching from headless to headful mode mid-execution. In my experience, once Chromium is started in headless mode, it remains so until the process is terminated. To debug any unexpected errors, I have had to design my application to either restart the browser in visible mode or incorporate extensive logging. Planning for error conditions means using a fallback mechanism, as there is no built-in support for dynamic mode switching within a single session.