Why for the first page only the queryKey's pagination is a Proxy object and for the following pages not?

[frederikhors]

I opened sveltejs/svelte#11854 thinking this is a Svelte 5 issue, but maybe is a tanstack one.

Steps to reproduce:

1. Open the reproduction

2. Open the browser console

3. When the project starts it will errors with:

   Uncaught (in promise) DOMException: Failed to execute 'put' on 'IDBObjectStore': #<Object> could not be cloned.
   

   

   This is happening because IndexedDB cannot serialize and persist a Proxy object which is pagination in this case.

   But...

4. If you click on "Next" button the pagination changes from {"page":1,"size":5} to {"page":2,"size":5} and IndexedDB persists the object with no issues!

5. Even stranger: if you click on the "Previous" button it changes from page:2 to page:1 and the error is here again!

Why for the first page only the queryKey's pagination is a Proxy object and for the following pages not?

How often does this bug happen?

Every time

Tanstack Query adapter

svelte-query

TanStack Query version

5

TypeScript version

5

[dummdidumm]

This has nothing to do with svelte-query

[frederikhors]

This has nothing to do with svelte-query

Oh, hey! Thanks for your answer. Do you think it's a Svelte 5 problem?