+🔴 Cons: You won't be able to access main context variables and code. While this is necessary for some use cases, the isolated context generally works fine for most scenarios. Also, web workers don't allow creating new worlds, so you can't execute your code inside a worker. This is a niche use case but may matter in some situations. There is a workaround for this issue, please read [How to Access Main Context Objects from Isolated Context in Puppeteer & Playwright](https://rebrowser.net/blog/how-to-access-main-context-objects-from-isolated-context-in-puppeteer-and-playwright-23741).
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