HTTP 423 Locked vs 425 Too Early
Both HTTP 423 (Locked) and 425 (Too Early) belong to the 4xx Client Error category. 423 indicates that the resource is locked and cannot be modified (WebDAV). Meanwhile, 425 means that the server is unwilling to risk processing a request that might be replayed. Used with TLS 1.3 early data (0-RTT).
Description
The resource is locked and cannot be modified (WebDAV).
When You See It
When trying to edit a file that another user has locked in WebDAV.
How to Fix
Wait for the lock to be released, or request the lock owner to unlock it.
Description
The server is unwilling to risk processing a request that might be replayed. Used with TLS 1.3 early data (0-RTT).
When You See It
When a server rejects a request sent as TLS 1.3 early data due to replay risk.
How to Fix
Retry the request after the TLS handshake completes.
Key Differences
HTTP 423: The resource is locked and cannot be modified (WebDAV).
HTTP 425: The server is unwilling to risk processing a request that might be replayed. Used with TLS 1.3 early data (0-RTT).
You encounter 423 when when trying to edit a file that another user has locked in WebDAV.
You encounter 425 when when a server rejects a request sent as TLS 1.3 early data due to replay risk.
When to Use Which
For 423 (Locked): Wait for the lock to be released, or request the lock owner to unlock it. For 425 (Too Early): Retry the request after the TLS handshake completes.