🐛 "Play again" not working in Hooked / Matching Pairs if experiment / block slugs are different

[BeritJanssen]

Description

When setting up an experiment from scratch that has a block based on hooked.py or matching_pairs.py in it, one might choose a different slug for the experiment.slug as compared to the block.slug. When hitting the "Play again" button at the end of such a block, the url to redirect to the experiment will fail, as the url of the redirect is set up as follows:

f"/{session.block.slug}{participant_id_url_param}".

The easy fix is of course to make sure that the slugs match. But to avoid this bug, we should either:

• set the redirect url based on the experiment's slug
• redirect to f"/block/{session.block.slug}{participant_id_url_param}

I don't currently know which of the two approaches is preferable.

Reproduction URL

https://tst.amsterdammusiclab.nl/block/tune

Reproduction steps

1. Go to Tune Twins on the test server
2. Play until end of experiment
3. Hit "Play again" button

Logs

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Browsers

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OS

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Additional context

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