useSWRInfinite has unbounded memory usage

[jedwards1211]

Bug report

useSWRInfinite is designed to just keep fetching pages forever without evicting any from the beginning of the list to keep memory usage bounded. This makes in unusable for any cases where the user could conceivably scroll down for a very long time, like a social media app, and cause the page to run out of memory.

If something bills itself as "infinite" I'd expect it to at least be able to reach row 2^32 without running out of memory.
This is more of an "infinite memory usage" implementation.

Description / Observed Behavior

I can see from the docs for useSWRInfinite that there is no way to evict pages from the beginning of the list and refetch them later.

Expected Behavior

I expected it to support limiting the number of pages it will keep in memory. If you set the limit to 100 pages for example, and the user scrolls down to where page 105 is loaded, then it would evict the first 5 pages from memory and keep track of how much of a gap there is at the beginning. Then it would be able to refetch pages at the beginning if the user scrolls back up.

Repro Steps / Code Example

Or share your code snippet or a CodeSandbox link is also appreciated!

Additional Context

SWR version.
Add any other context about the problem here.