Node Object.__proto__ bug reproduction

This repository is a reproduction of an error that occurs when using Object.__proto__ in a Node.js environment.

This was first discovered while generating a router asynchronously via itty-router from within a Cloudflare Worker, but this minimal reproduction shows the issue is not specific to itty-router or Cloudflare Workers.

Bug

When using Object.__proto__ in a Node.js environment, the execution never gets to the point where a response is returned as shown in this reproduction.

Reproduction

To reproduce the bug, run the following commands:

npm install
npm start

To toggle the bug, switch between using createAsyncRouter and createRouter with the following commands:

npm run sync
npm run async

Just by calling createAsyncRouter instead of createRouter, the erroneous behavior is observed (no response) -- even if you don't use the returned value.