HTTP 414 URI Too Long vs 425 Too Early
Both HTTP 414 (URI Too Long) and 425 (Too Early) belong to the 4xx Client Error category. 414 indicates that the URI provided was too long for the server to process. 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 URI provided was too long for the server to process.
When You See It
When query strings are extremely long or when accidentally sending a request body in the URL.
How to Fix
Shorten the URL. Move long parameters to the request body using POST instead of GET.
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 414: The URI provided was too long for the server to process.
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 414 when when query strings are extremely long or when accidentally sending a request body in the URL.
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 414 (URI Too Long): Shorten the URL. Move long parameters to the request body using POST instead of GET. For 425 (Too Early): Retry the request after the TLS handshake completes.