HTTP Status Codes
HTTP 104 Upload Resumption Supported
104 Upload Resumption Supported
The server indicates temporary support for resumable upload behavior defined by the current extension draft.
Error AtlasError Documentation and ResolutionObserved message
104 Upload Resumption Supported
Why it happens
- The request triggered an informational response during negotiation, upload, or long-running processing.
- The client and server exchanged interim response details before the final status code was sent.
- A proxy, framework, or client surfaced the interim status directly for logging or debugging.
How to fix it
- Check the final response status as well as the interim status to understand the full request outcome.
- Review upload, streaming, or protocol negotiation behavior if the informational response is unexpected.
- Confirm whether any client library, proxy, or framework is surfacing interim responses in UI or logs.
Official reference
IANA: HTTP Status Code Registry (104 Upload Resumption Supported temporary registration)Related errors
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