For example https://gitpod.io/#https://github.com/sagemath/sage, which appears as a link in our manuals, for instance,
does not work because the workspace directory is /workspace/sage, not /workspace/sagetrac-mirror
CC:  @tobiasdiez @dimpase
Component: user interface
Author: Matthias Koeppe
Branch/Commit: eb839d4
Reviewer: Kwankyu Lee
Issue created by migration from https://trac.sagemath.org/ticket/34270