Problem

When using the mdbook serve command with --port 0 and --open options, the opened page is wrong, as the port is 0 instead of the random port attributed by the system.

Steps

1. mdbook init abc --force
2. mdbook serve abc --port 0 --open

Possible Solution(s)

The serving_url should contain the bound port instead of the asked port (0)

Maybe using something like bind_ephemeral could be used. It would maybe require to move the creation of the warp server in a separate function run before the thread spawn.

Notes

No response

Version

mdbook v0.4.47