Browser extension: some event logs make it to the Sourcegraph Cloud database

Created by: attfarhan

Some event logs are appearing in the Sourcegraph Cloud BigQuery events database. These events have a source of CODEHOSTINTEGRATION. However, the documentation in the code specifically says that events will only be sent to the local database, and on Cloud, events don't get sent.

I can't reproduce it reliably, but I can see these events fairly regularly appearing in the BigQuery DB. @erzhtor and I found out that the event URL when these events are sent is actually null, so this check doesn't get triggered.

Expected behavior:

No browser extension logs make it into BigQuery.

Actual behavior:

Some logs from the browser extension are appearing in BigQuery.