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Cloudflare DevelopersCD
Cloudflare Developers•3mo ago
Gab

BUG REPORT: WORKER CUSTOM DOMAIN

I’ve been experiencing a recurring issue during the Worker custom-domain creation process (and noticed other users reporting the same).

When it happens:
The issue occurs on the first attempt to attach a custom domain to a Worker. An error message is displayed even though the configuration is valid.

How it happens:
The initial request to add the domain consistently fails. Retrying once or multiple times works and the domain is added successfully. The behavior is repeatable and does not indicate any actual configuration problem.

Where it happens:
This occurs across multiple Workers, in different accounts, with different domains — including cases where the Worker already has other domains attached.

Environment:
User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/139.0.0.0 Safari/537.36
OS: Linux/Ubuntu
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