Issues with Custom Error Pages Upload and Preview

Resolved

This incident has been resolved.

Update

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

Update

The cause of this issue has been identified and we are working on implementing a fix.

Investigating

Cloudflare is investigating issues with custom error pages. Customers using the Dashboard or APIs to upload or preview custom error pages may experience failed requests or errors. We are actively working to resolve this issue and will provide updates shortly.