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## Summary This was originally implemented by Mengdi @mondaychen in https://github.com/facebook/react/pull/26506. Because we patch console methods (to append components stack and some other features), errors in console will include `react_devtools_backend-....js` in its stack traces. Example: <img width="763" alt="Screenshot 2023-06-15 at 13 31 49" src="https://github.com/facebook/react/assets/28902667/fa9c3d26-b6c5-4965-af71-62d100cd806d"> Using https://github.com/mondaychen/devtools-ignore-webpack-plugin to support [x_google_ignoreList source maps extension](https://developer.chrome.com/blog/devtools-better-angular-debugging/#the-x_google_ignorelist-source-map-extension). @mondaychen created a react app, which throws an error via `console.error`, when user click on the button - https://3owqsn.csb.app/. Stack trace with these changes: <img width="759" alt="Screenshot 2023-06-14 at 14 26 38" src="https://github.com/facebook/react/assets/28902667/b118b168-3200-4a47-9718-39fc455ea993">
This is the source code for the React DevTools browser extension.
Installation
The easiest way to install this extension is as a browser add-on:
Local development
You can also build and install this extension from source.
Prerequisite steps
DevTools depends on local versions of several NPM packages1 also in this workspace. You'll need to either build or download those packages first.
1 Note that at this time, an experimental build is required because DevTools depends on the createRoot API.
To install all necessary dependencies, run the following command from the root of the repository:
yarn install
Build from source
To build dependencies from source, run the following command from the root of the repository:
yarn build-for-devtools
Download from CI
To use the latest build from CI, run the following commands starting from the root of the repository:
cd scripts/release
yarn install
./download-experimental-build.js
Build steps
Once the above packages have been built or downloaded, you can build the extension by running:
cd packages/react-devtools-extensions/
yarn build:chrome # => packages/react-devtools-extensions/chrome/build
yarn run test:chrome # Test Chrome extension
yarn build:firefox # => packages/react-devtools-extensions/firefox/build
yarn run test:firefox # Test Firefox extension
yarn build:edge # => packages/react-devtools-extensions/edge/build
yarn run test:edge # Test Edge extension