Bug: Zero length deflate responses are never fulfilled

[nsmaciej]

Some older ISS servers can send zero-length deflate responses. This causes the response to ‘slip through the cracks’, leading to the response promise to never be fulfilled.

I created a PR #903 to fix this over a month ago, but I am creating an issue due to inactivity.

Reproduction

More detail can be be found in the PR. This affects both version 2.x and 3.x. Essentially any response similar to

HTTP/1.1 200 OK
Content-Encoding: deflate
Content-Length: 0
Server: Microsoft-IIS/7.5

Expected behaviour

The node-fetch response promise should be fulfilled.

[github-actions]

🎉 This issue has been resolved in version 3.2.0 🎉

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

Your semantic-release bot 📦🚀