If you’re using VSCode on WSL and you’re trying to authenticate with Bitbucket to view the PRs, Bitbucket may redirect you to the callback URL like http://127.0.0.1:31415/..., and that will fail because the host is wrong. A simple solution is just to replace 127.0.0.1 with localhost. This issue is already reported in this Github issue where the workaround is also shared: https://github.com/atlassian/atlascode/issues/249