This only works with the dev version of react, but we can add a new npm command to explicitly use dev, and make npm start use prod by default.

Comment on attachment 8866033 [details] Bug 1363497 - Include react-addons-perf for launchpad via `npm run dev`; https://reviewboard.mozilla.org/r/137632/#review140976 Just a small nit but this looks good to me ::: devtools/client/webconsole/package.json:9 (Diff revision 1) > "engines": { > "node": ">=6.9.0" > }, > "scripts": { > - "start": "node bin/dev-server", > + "start": "cross-env NODE_ENV=production node bin/dev-server", > + "dev": "node bin/dev-server", nit: What do you think of naming this `start-dev` or something alike, so it looks like the original start command ?

Pushed by bgrinstead@mozilla.com: https://hg.mozilla.org/integration/autoland/rev/e204f93b4a39 Include react-addons-perf for launchpad via `npm run dev`;r=nchevobbe