Following 'Add React to a Website' gives 'not supported' error

[adwilk]

After following the code samples on the Add React to a Website guide (using v18 .development.js scripts) there is a warning in the browser console:

Warning: You are importing createRoot from "react-dom" which is not supported. You should instead import it from "react-dom/client".
printWarning @ react-dom.development.js:73
error @ react-dom.development.js:47
createRoot$1 @ react-dom.development.js:29540
(anonymous) @ (index):32

I don't see any obvious way to import react-dom/client from unpkg.

[gaearon]

This is a bug: facebook/react#24221. We're looking at it but might take a week to fix.

You can ignore it.

[harish-sethuraman]

Closing this as it has been fixed in the react repo

• React DOM UMD always warns in React 18 facebook/react#24221