Error loading alert condition details page

[edmundoa]

Sometimes loading the alert condition details page only works partially, and the alert notifications associated to the stream are always in a loading state. The error in the console is:

Unhandled rejection TypeError: Cannot read property 'org.graylog2.alarmcallbacks.HTTPAlarmCallback' of undefined
    at Constructor.render (webpack:///./src/components/alertnotifications/AlertNotification.jsx?:92:59)

Expected Behavior

Alert notifications should load.

Current Behavior

Alert notifications do not always load properly.

Steps to Reproduce (for bugs)

1. Go to Alerts -> Alert conditions -> Select an alert
2. Check if the notifications appear (this is a timing issue, so it may not always happen)

Your Environment

• Graylog Version: Graylog 2.3.0-SNAPSHOT, 2.2.1 is also affected

[edmundoa]

Update: Updated the original issue report with some steps to reproduce and confirming that 2.2.1 is affected.