Minor ImpactLast updated: Sep 3, 2026, 7:32 PM UTCRefreshed just now

HTTP/3 issue affecting R2 custom domains

Started

Aug 31, 2026, 6:47 PM UTC

Resolved

Sep 3, 2026, 7:32 PM UTC

Timeline

ResolvedSep 3, 2026, 7:32 PM UTC
This incident has been resolved.
MonitoringSep 3, 2026, 3:14 PM UTC
A fix has been implemented and we are monitoring the results.
IdentifiedSep 1, 2026, 2:46 PM UTC
The issue has been identified and a fix is being implemented.
InvestigatingAug 31, 2026, 6:47 PM UTC
Some Firefox users may see delayed or failed asset loads on R2 custom domains due to an incorrect HTTP/3 advertisement. We are working on a fix.