[Environments] 500 error when connecting too quickly

[pameladelgado]

Description

When connecting to a new environment as soon as its ready, a 500 error appears instead of the notebook (see screenshot)

Reproduce

1. Start a new environment
2. As soon as the environment is ready, click on connect
3. A 500 Internal Server Error appears
4. When waiting some seconds and refreshing the error goes away and the notebook is loaded successfully

Outcome
The user might mistakenly think that there's a problem with the notebook.

Context

• renkulab: stable.dev.renku.ch

• os: linux

• browser: firefox

• reproduced on a mac as well

[rokroskar]

Related to #183

[lorenzo-cavazzi]

Issue moved to SwissDataScienceCenter/renku-notebooks SwissDataScienceCenter/renku-ui#256 via ZenHub

[lorenzo-cavazzi]

this was fixed by #253

It may still occasionally happen that the JupyterLab page is opened 1-2 seconds before the environment is ready, but now the UX is different: the temporary page is the one below (see screenshot) and it redirects automatically the user to the proper page when the environment is up.

You can try it on https://lorenzotest.dev.renku.ch/