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minor✓ Resolved

HTTP/3 issue affecting R2 custom domains

Cloudflare•Mon, Aug 31, 2026, 06:47 PM
Status
resolved
Duration
3 days
Updates
3
Coverage
0 articles

INCIDENT TIMELINE

✓ ResolvedThu, Sep 3, 2026, 07:35 PM
This incident has been resolved.
monitoringThu, Sep 3, 2026, 03:14 PM
A fix has been implemented and we are monitoring the results.
identifiedTue, Sep 1, 2026, 02:46 PM
The issue has been identified and a fix is being implemented.
investigatingMon, Aug 31, 2026, 06:47 PM
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.

📊 TECHNICAL DETAILS

Internal ID
3d8841c4-a2cd-41b9-b95c-ce2b830e96f9
External ID
8x66bpk6p9kk
🕐 Started
Mon, Aug 31, 2026, 06:47 PM
🔄 Last Updated
Thu, Sep 3, 2026, 07:35 PM
✓ Resolved
Thu, Sep 3, 2026, 07:35 PM
MINOR
Impact Level
3 days
Total Duration
3
Status Updates
Affected Components
R2
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