Description
Describe the bug
Hello, I'm having the same issue as one reported here #5296
But I do not use Nuxt, and so Nuxt specific features do not help me in this case — onScopeDestroy is not called in my almost vanilla (vite-ssr) SSR app, and so I got a leak of query observers.
The only non-conventional thing I do is: I want to manage the query cache myself, so I make it a singleton on the server, hoping that it will only contain the cached data. But turns out, it holds all the subscriptions from all queryObservers ever created on every request.
Your minimal, reproducible example
https://codesandbox.io/p/devbox/qm3xrt
Steps to reproduce
npm run dev
Expected behavior
There is a log indicating how many query observers are left after the renderToString on SSR, and currently that number is growing with every new request, while I'm expecting it to be zero.
How often does this bug happen?
None
Screenshots or Videos
No response
Platform
node
Tanstack Query adapter
None
TanStack Query version
5.81.2
TypeScript version
No response
Additional context
No response