Opening terminal from Devii page fails; works from container page

Summary

Opening a terminal from the Devii page does not work, while opening it from the container page functions correctly.

Steps to Reproduce

1. Navigate to the Devii page.
2. Attempt to open a terminal.
3. Observe the failure.
4. Navigate to the container page.
5. Attempt to open a terminal.
6. Observe success.

Expected Behaviour

Opening a terminal from the Devii page should work as it does from the container page.

Actual Behaviour

Opening a terminal from the Devii page fails.

Environment

Not provided.

Reported by retoor via DevPlace.