Skip to content

Incident detail

HTTP/3 issue affecting R2 custom domains

Resolved incidentMinor1 affected service

Timeline window

to

Get alerted the next time Cloudflare breaks

Free email alerts for the handful of vendors you cannot afford to miss. No card, live in about a minute. Paid plans add Slack, Teams, Discord, and webhook delivery across your whole stack, plus higher API quotas.

Timeline

Incident updates

Every update Cloudflare posted, oldest to newest, exactly as it appeared on their official status page.

  1. Investigating

    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.

  2. Identified

    The issue has been identified and a fix is being implemented.

  3. Monitoring

    A fix has been implemented and we are monitoring the results.

  4. Resolved

    This incident has been resolved.

Keep exploring

More from Cloudflare

Neighboring incidents on Cloudflare's timeline and the rest of their record on OutageDeck.