This incident has been resolved.

We've recovered from this interruption and chatboxes are loaded again, expected. These interruptions appear to be caused by an upstream provider service interruption. We're continuing to monitor the situation and will provide updates as we have them.

We're investigating the cause of chatboxes not loading on some sites. We'll provide an update as soon as we know more.

We've detected an issue and are working to resolve this quickly. We'll have an update within the hour.