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HTTP_STATUS_LOGIN_TIMEOUT
The code is not registered by IANA, so clients must not treat it as a standard authentication challenge. Applications often use it to tell the browser to restart an interactive sign-in flow.
Check session lifetime, authentication cookies, load-balancer affinity, and clock or redirect handling. Preserve the response body because it can identify the application-specific session policy.
IANA HTTP Status Code Registry
Operational meaning of HTTP 440 for HTTP_STATUS_LOGIN_TIMEOUT
HTTP 440 (HTTP_STATUS_LOGIN_TIMEOUT) is a client-error response. AllStat records its meaning as “440 Login Time-out”. For HTTP_STATUS_LOGIN_TIMEOUT, interpret it with the request method, selected representation, response headers, and the specification or product that defines the code; the number alone does not prove that application work completed.
Client and server handling for HTTP_STATUS_LOGIN_TIMEOUT
- Treat HTTP_STATUS_LOGIN_TIMEOUT as a condition visible at the request boundary; inspect authentication, syntax, preconditions, routing, and resource state before retrying.
- For HTTP_STATUS_LOGIN_TIMEOUT, preserve the response body and challenge or retry-related headers because they often carry the actionable reason.
- For HTTP_STATUS_LOGIN_TIMEOUT, automatic retry is safe only when the method and status contract allow it and the request has been corrected.
For telemetry, record HTTP 440, method, authority, route template rather than secrets, response headers relevant to caching or retry, latency, upstream identity, and whether the response originated at the application or an intermediary.
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