Rule attribute selector causing flag targeting web interface to crash

Affected Service: Feature management (core functionality) - Flag targeting

Timeline of Updates

September 30, 2021 - 14:00 PDT (Investigating)

Some customers are seeing an error page when attempting to use the attribute selector on the flag targeting page. The team had already identified the issue and was developing a solution.

September 30, 2021 - 14:18 PDT (Monitoring)

A fix was deployed with plans to monitor for residual problems.

September 30, 2021 - 14:30 PDT (Resolved)

The incident was marked as resolved.

October 6, 2021 - 10:24 PDT (Postmortem)

The root cause analysis revealed that a frontend code bug introduced on September 30 caused errors when using the rule attribute selector, but only in environments where one or more private attributes had been declared. The development team lacked test coverage for this scenario and committed to implementing unit and integration tests addressing private attribute usage going forward.