fails to connect when using host.docker.internal

Describe the bug

When used with a devcontainer, unable to connect to host.docker.internal , seems to try to resolve an IPv6 address, and fails to connect.

Works correctly from the terminal
psql "postgresql://postgres:...@host.docker.internal:5432/postgres?sslmode=disable" -c "SELECT now(), version();"

Works correctly from VSCode using ckolkman.vscode-postgres

To Reproduce

connect to postgres running under docker, from another devcontainer.

postgresql://postgres:...@host.docker.internal:5432/postgre

Expected behavior

connection

Screenshots

VS Code version

Version: 1.107.1 (user setup)
Commit: 994fd12f8d3a5aa16f17d42c041e5809167e845a
Date: 2025-12-17T14:15:14.850Z
Electron: 39.2.3
ElectronBuildId: 12895514
Chromium: 142.0.7444.175
Node.js: 22.21.1
V8: 14.2.231.21-electron.0
OS: Windows_NT x64 10.0.26200

Extension Logs

See: https://github.com/microsoft/vscode-pgsql?tab=readme-ov-file#usage-and-feedback

Add any other context about the problem here.

Start by reproducing the PostgreSQL connection from one devcontainer to a database running in Docker, using the host.docker.internal URL from the report. Compare the extension's connection behavior with psql and ckolkman.vscode-postgres, focusing on IPv6 resolution; done means the reported connection succeeds from the devcontainer.