Thursday September 30th 2021, 18:00 - Friday October 1st 2021, 01:00 UTC
In Visual Testing (Screener), component snapshots were being captured with the “error: certificate has expired” showing on screen. All component tests that were run using ngrok tunnels were affected.
Screener has a cache layer to avoid downloading resources on every component request. This cache layer has some issues related to an expired third-party certificate.
To mitigate the issue the cache layer was removed as fast as possible. After the issue was later addressed, the cache layer was reinstated the next day on Oct 1st.
We’re adding additional monitoring checks to detect any issues with the caching layer.