Alexander Lebed

@benbriggs Thank you!!

I think @SUCHiDEV is right, it's not related to SWR. Can be fixed by ``` experimental: { esmExternals: false, } ``` from [here](https://github.com/vercel/next.js/issues/30330)

I confirm the issue. In my case: ``` ... operator: type: string enum: - '=' - '!=' - '' - '=' - '~' - '!~' - '^' - '!^' -...

The workaround is to rename 'default' theme to something else, so it can be saved to localStorage.