494 Request Header Too Large
Description
The HTTP 494 Request Header Too Large is an unofficial HTTP status code specific to nginx. It is returned by the server to indicate that the client's request headers exceed the limit set by the large_client_header_buffers directive in the nginx configuration.
This error is similar to the standard 431 Request Header Fields Too Large, but 494 is triggered by nginx during an internal processing phase (while reading request headers) and typically carries no response body.
