67a05d03e3
## Summary Initially reported in https://github.com/facebook/react/issues/26797. Was not able to reproduce the exact same problem, but found this case: 1. Open corresponding codepen from the issue in debug mode 2. Open components tab of the extension 3. Refresh the page Received multiple errors: - Warning in the Console tab: Invalid renderer id "2". - Error in the Components tab: Uncaught Error: Cannot add node "3" because a node with that id is already in the Store. This problem has occurred after landing a fix in https://github.com/facebook/react/pull/26779. Looks like Chrome is keeping the injected scripts (the backend in this case) and we start backend twice.
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