Sentry error code: network unavailable

Hello, it’s been 5 days since we retrieved any error on sentry (we’re using the cloud hosted option sentry.io) - and I almost thought we managed to fix a really hard to crack error, but a colleague of mine saw it again, together with the error from sentry

Sentry error code: network unavailable

I’m pretty sure that this error is coming from https://github.com/getsentry/raven-js/blame/75841973ff6c92eb965d97e1dcadc8d7b925b03a/src/raven.js#L1948

The application is hosted on AWS, so at any given time, the user must have access to the internet. I remember, in the beginning one of the developer’s chrome extension was blocking connection to sentry. It was some privacy protection stuff extension.

Do you have any ideas how I could figure out why the error isn’t reported? Once we can reliably reproduce it on this machine, we could add a notification for other users to perform similar steps so we can get notified about errors and fix them earlier.

Thank you,
Peter