Outage in LaunchDarkly

Polling client-side SDKs are unable to connect to LaunchDarkly

Resolved Major
May 27, 2025 - Started 30 days ago - Lasted about 3 hours
Official incident page

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Outage Details

Client SDK users are experiencing CORS errors
Components affected
LaunchDarkly Feature flag CDN
Latest Updates ( sorted recent to last )
RESOLVED 30 days ago - at 05/27/2025 04:44PM

This incident has been resolved.

MONITORING 30 days ago - at 05/27/2025 04:40PM

Polling connections are continuing to fully recover for impacted browser SDKs.

MONITORING 30 days ago - at 05/27/2025 02:38PM

A fix has been implemented and Browser SDK connections continue to recover while we clear cached errors from the polling service.

IDENTIFIED 30 days ago - at 05/27/2025 02:29PM

Only browser SDKs are affected by this incident. The team has determined that non-browser SDKs (e.g. mobile and desktop SDKs) are unaffected.

SDK connections are starting to come back online and recover.

IDENTIFIED 30 days ago - at 05/27/2025 02:11PM

Client-side and mobile SDKs are unable to connect to the Flag Delivery Network’s polling capability. Impacted SDKs will continue to serve last known-good flag values.

Server-side SDK connectivity is unaffected, as is client-side and mobile streaming connectivity. The ability to manage flags is also unaffected.

INVESTIGATING 30 days ago - at 05/27/2025 01:56PM

We are continuing to investigate this issue.

INVESTIGATING 30 days ago - at 05/27/2025 01:54PM

Client SDK users are experiencing CORS errors

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