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09285d5a7f
1. https://github.com/bvaughn/react/commit/9fc04eaf3fb701cdc14f57d5aed48f3126af6c94#diff-2c5e1f5e80e74154e65b2813cf1c3638f85034530e99dae24809ab4ad70d0143 introduced a vulnerability: we listen to `'fetch-file-with-cache'` event from `window` to fetch sources of the file, in which we want to parse hook names. We send this event via `window`, which means any page can also use this and manipulate the extension to perform some `fetch()` calls. With these changes, instead of transporting message via `window`, we have a distinct content script, which is responsible for fetching sources. It is notified via `chrome.runtime.sendMessage` api, so it can't be manipulated. 2. Consistent structure of messages `{source: string, payload: object}` in different parts of the extension 3. Added some wrappers around `chrome.scripting.executeScript` API in `packages/react-devtools-extensions/src/background/executeScript.js`, which support custom flow for Firefox, to simulate support of `ExecutionWorld.MAIN`.