What other methods would an attacker use for making an HTTP request that isn’t Fetch() or an XHR or using the DOM?

We are running user-submitted JavaScript, server-side to be executed within a headless browser that doesn’t have a DOM or any child of the window or document or location objects – because these are already removed. Is there a way for plain… Continue reading What other methods would an attacker use for making an HTTP request that isn’t Fetch() or an XHR or using the DOM?