Immediately after switching the page, it will work with CSR.
Please reload your browser to see how it works.
In my Django app I wrote a logging handler that stores the log records (including traceback) in a database table. I can inspect the log records through Django admin, and a cron job sends me daily emails saying "X new log records in the last 24 hours" so I know to check them out. And that's it :-)
Of course, this does a lot less than Sentry, and has various limitations (e.g. what if the error is about the database being down...), but it fits my needs.
BTW, IIUC, Sentry in its early beginnings was also doing just that – logging to database: https://github.com/dcramer/django-db-log