Should IndexedDB allow indexing on Request/Response properties

[SteveBeckerMSFT]

Reviving an IndexedDB issue from 2019 that we revisited at TPAC 2024, which involves: "allowing Request/Response objects to be stored in Indexed DB. That basically just requires defining serialization for them - a blob plus some metadata."

In 2024, do we have scenarios that need Request/Response support in IndexedDB?

Previous discussions indicate the sync and backgroundfetch events might provide use cases, but the discussion didn't go into much detail.