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HTTP Connection Headers

The Connection general header controls whether the network connection stays open after the current transaction finishes. If the value sent is keep-alive, the connection is persistent and not closed, allowing for subsequent requests to the same server to be done.

Syntax

Connection: keep-alive
Connection: close

Directives

  • close

    • Indicates that either the client or the server would like to close the connection. This is the default on HTTP/1.0 requests.

  • any comma-separated list of HTTP headers [Usually keep-alive only]

    • Indicates that the client would like to keep the connection open. Keeping a connection open is the default on HTTP/1.1 requests. The list of headers are the name of the header to be removed by the first non-transparent proxy or cache in-between: these headers define the connection between the emitter and the first entity, not the destination node.

Reference