[Next] StrictMode

I started to use this library and I see a lot of potential in it! Thanks for the awesome work.

I use nextjs with StrictMode, so I started to notice the following message in my server-side logs:

Warning: useLayoutEffect does nothing on the server, because its effect cannot be encoded into the server renderer's output format. This will lead to a mismatch between the initial, non-hydrated UI and the intended UI. To avoid this, useLayoutEffect should only be used in components that render exclusively on the client. See https://fb.me/react-uselayouteffect-ssr for common fixes.

Is there anything I can do on my side to avoid those messages?

PS - If I understand correctly, you are using “useLayoutEffect” to avoid running on the server. If my assumption is correct, is there any benefit from using “useLayoutEffect”, instead of “useEffect” with a check to see if we have window available? Sorry if this is a “dumb” question but I’m quite new to hooks 😃

[bmvantunes]

The only problem I’m seeing with using useLayoutEffect is that developers using StrictMode and server side rendering will be seeing this warning on every single page refresh that has “useSWR(…)”.

While developing that’s a bit distracting. If this warning is constantly appearing in the terminal, developers will start to ignore warnings - which is a bit against the initial idea of using StrictMode.

[bmvantunes]

@quietshu sure! Tomorrow I’ll file the PR 😊