Data Cached on the Server

[lpbonomi]

I'm fetching data normally in the server, by using Prisma. After that, I pass the info down to the Client and use that data as initialData. I'm getting some strange hydration errors where this initial data differs to the data from the query. After doing some tests I've seen that sometimes some data is saved in the cache in the server, how is this possible? I'm not using queryPersistClient nor anything else.

I know this is being rendered because of these console logs:

  console.log("is server?", typeof window === "undefined");
  console.log(
    useQueryClient().getQueryData(queries.notificationPreferences.all()),
  );

is server? true
{
  data: {
    id: 1,
    userId: 1,
    ...
  }
}

[TkDodo]

you are likely creating the queryClient on the server outside of the component, so it’s cached between requests

[lpbonomi]

This was the issue, thank you so much