Caching of the pdf
Admittedly my use case is a bit odd, but here we go:
- Create a new exam in zesje by uploading PDF-A.
- Realise you uploaded an incorrect pdf, cancel it and then nuke the database and init an empty new one.
- Create a new exam in zesje by uploading PDF-B (this again has id 1)
- Get ready to drag the QR-markers into the right place and observe that you are now viewing PDF-A because Chrome has cached the request.
- Open an in-cognito screen and you now see PDF-B and can go about setting things up properly.