R2Bucket.put() gets stuck indefinitely in using the getBindigns() ProxyStub

[TimoWilhelm]

After migrating to the new *magic* proxy getBindings() implementation in Miniflare 3, I noticed that storing new blobs in R2 through the proxy stub get stuck indefinitely.

Looking at the .miniflare directory it seems like the blob is uploaded correctly. However, the call never completes and eventually fails with a fetch timeout.

I've included a Minimal, Reproducible Example here https://github.com/TimoWilhelm/mre-miniflare-r2-bindings

Environment

Node: v20.5.1
miniflare: 3.20230821.0

[mrbbot]

Hey! 👋 I think this is the same issue as cloudflare/workers-sdk#3626 (comment). I think this may be caused by nodejs/node#48668, which was introduced in Node 20.4.0. It looks like Node 20.3.0 doesn't reproduce this issue, so I'd stick with that for the time being. I'll close this issue, since there's not much we can do until the next Node release. 👍 In your reproduction, you'll want to add await mf.dispose() at the end of your script too, so the process can exit cleanly.

[TimoWilhelm]

Thanks for the quick reply 🙌 I must have missed the other issue.