React DevTools Extension for Electron
Unfortunately, React DevTools
is not working with Electron(<=v1.2.0). Because not implemented
chrome.runtime* APIs and not support
Background Pages in Electron. So I fix
the source of "React DevTools" for Electron.
npm install --save-dev electron-react-devtools or npm install --save-dev firejune/electron-react-devtools
You will still see the React DevTools message('Download the React DevTools
and ...') in
Then execute the following from the Console tab of your running Electron app's developer tools:
And than refresh or restart the renderer process, you can see a
React tab added.
To hack on the plugin
npm run buildin this directory
webpack --watchin this directory
- Go to
chrome://extensions, check "developer mode", and click "Load unpacked extension", and select this directory
- Hack away!
Generally, changes to the UI will auto-propagate if you have
on (close devtools and re-open them). If you change the background script or
injector, you might have to reload the extension from the extensions page.
Insulating the environment
React Devtools has part of the code (the backend + agent) running in the same
environmental inconsistencies. For example, the backend uses the es6
class and normally expects it to be available in the global scope. If a user
script has overridden this, the backend breaks.
To prevent this, the content script
which runs before any user js, saves the native values we depend on to the
__REACT_DEVTOOLS_GLOBAL_HOOK__ global. These are:
webpack.backend.js, these saved values are substituted for the
globally referenced name (e.g.
Map gets replaced with
React Native sets
null in order to convince js
libs that they are not running in a browser environment while
debug in chrome is enabled.
To deal with this,
document.constructor.prototype.createElement when it needs to create a