React 18 StrictMode breaks default styling

[axhl]

Thanks for the great work that's gone into the library thus far.

<React.Strictmode> in the latest React 18 release currently prevents components from rendering with default styling. Codesandbox to demonstrate: https://codesandbox.io/s/mantine-react18-strictmode-u0s9p

My guess is that this is due to the addition of Strict Effects per reactwg/react-18#19

Is this a known issue? Or considered an issue at all?

[rtivital]

Hi, thanks for reporting, I think that this is most likely a react-jss issue, I'll connect with jss team and debug this once react 18 rc will be out

[danioo]

Any updates here?

[rtivital]

Yes, we've migrated project to emotion and do not use react-jss anymore

[rtivital]

Works fine – https://codesandbox.io/s/mantine-react18-strictmode-forked-rfce9?file=/src/App.tsx