Starting as early as at least 2022-10-26, users may experience a significant performance degradation when enabling HTTP/3 on their sites. Users are advised to disable HTTP/3 for better performance.
Update: Improvements have been made to HTTP/3 performance recently that greatly reduce the impact of this regression.
A fix has been implemented and we are currently monitoring the results.
Posted Sep 26, 2024 - 21:17 UTC
Identified
We have identified the issue. If you re-deploy a Worker it should fix the issue.
Posted Sep 26, 2024 - 21:07 UTC
Update
We are continuing to investigate this issue.
Posted Sep 26, 2024 - 20:46 UTC
Investigating
Cloudflare is investigating an issue invoking Workers on workers.dev subdomains. At this time, we do not see any impact on normal routes/custom domains.
We will update when we have more information
Posted Sep 26, 2024 - 20:25 UTC
This incident affected: Cloudflare Sites and Services (Workers).