Hi, thanks for the great libraries!

I'm working on a PR to (hopefully) improve support for Node 18 and native fetch. So far I've found a few related bugs caused by incorrect serialization of IPv6 host in URLs, which is a problem on Node 18 when running in dual stack environments like GitHub Actions because localhost can resolve to ::1, and some code in page-with and test-server libraries incorrectly serializes any IPv6 host to an invalid URL. The fix is to surround an IPv6 host with square brackets.

This is an easy bug to fix, but I don't know where to make the PR. I haven't been able to find the source code for page-with (no source listed) or @open-draft/test-server (source link 404). Is the source code for these packages available somewhere? I see that @kettanaito is their maintainer, but I cannot find the source repositories on his profile nor anywhere in the mswjs organization.

In the meantime, I'm able to workaround the bug by fixing it with re-exports and prototype patching, but that's not ideal