Context: http, server, and location
This directive applies to client requests with a request body. As soon as the number of uploaded data exceeds max_client_body_size, Nginx immediately sends a 413 Request entity too large HTTP error response. However, most browsers continue uploading data regardless of that notification. This directive defines the number of time Nginx should wait after sending this error response before closing the connection.
Syntax: Numeric value (time)
Default value: 30 seconds