Webextension: How to transparently modify XMLHttpRequests
问题 My goal … is to have a web extension (in Firefox for now) that intercepts and modified XMLHttpRequests issues by a site as transparently as possible. Best case is that the extension is undetectable by the site even when explicitly looking for it. For example, I want to be able to automatically redact/replace critical data before it is send out or enforce caching of large images despite the original page disabling that explicitly. Original approach Use a background script and browser