Merge branch '173-clean-up-logout-procedure' into 177-support-enforcing-2fa

backend/web/login/login.py

@@ -592,7 +592,7 @@ def logout():
     # Generally, if we encounter errors during these steps we redirect the user
     # to the beginning of the logout procedure, which is
     # `https://${hydra_domain}/oauth2/sessions/logout`.
-    new_logout_url = "https://{}/oauth2/sessions/logout".format(HYDRA_PUBLIC_URL)
+    new_logout_url = f"{HYDRA_PUBLIC_URL}/oauth2/sessions/logout"
 
     # We should have been redirected here by hydra which also sets the
     # `logout_challenge` parameter.