Overview

The server.py script starts a web server with two endpoints:

1. POST /login - Returns a 302 redirect to /me and sets a logged_in=true cookie
2. GET /me - Returns "You are logged in" if the logged_in=true cookie is present, otherwise returns "Please log in"

Expected Behavior

All Swift test functions send a POST /login request and expect a "You are logged in" response. This works because URLSession automatically:

1. Follows the 302 redirect from /login to /me
2. Includes cookies set by the /login response in the subsequent request to /me

Issue

The tests pass on macOS but fail on Linux. Specifically, the test that uses dataTask(...) with a custom delegate fails on Linux.

Steps to Reproduce

Assuming you are using macOS.

1. Start the web server: python server.py
2. Run swift test to verify all tests pass on macOS.
3. Run swift test on a Docker image to reproduce the issue on Linux:

docker run --rm -v "$PWD:/app" -w /app --network host swift:6.2 swift test