afterResponse hook causes response Promise to hang

[exogen]

Here's a simple repro: https://github.com/exogen/ky-afterResponse-repro

This doesn't seem to happen for every request; I suspect it might have something to do with the response body size. I tried a couple small public JSON API demos before I landed on a GraphQL endpoint that reproduced the behavior.

Under certain conditions, simply including an afterResponse hook causes the response Promise to hang. The hook doesn't have to do anything; it can be a no-op function or just return the same cloned response. Removing the hook causes it to start working. Switching to node-fetch also works fine.

I wonder if the hook causes the response to be cloned and therefore the Promise as well, making one of them never resolve? Just a thought.

[sindresorhus]

Duplicate of sindresorhus/ky-universal#8

[sindresorhus]

Can you post your issue description above as a comment on sindresorhus/ky-universal#8?