# CORS errors on CDA

- Provider: [Contentful](https://down.guide/contentful)
- Level: confirmed
- Impact: Partial outage
- lasted 1h 5m
- started 2026-09-29 14:39 UTC
- Content Delivery API, Content Delivery API
- id: DWN-0782b3e684
- Official page: https://stspg.io/r044gjmkw13f

## Root cause
> We've identified the cause and are working on resolution.

[Postmortem](https://stspg.io/r044gjmkw13f)

## Updates from Contentful
### 2026-09-29 14:39 UTC: identified
Some customers are seeing CORS preflight failures when requesting cross-space references on CDA through webbrowsers. We've identified the cause and are working on resolution.

### 2026-09-29 15:16 UTC: monitoring
The issue has been resolved. We are monitoring the situation.

### 2026-09-29 15:44 UTC: resolved
The issue has been resolved.

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