Connection

This directive 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.

The names of the product elements

The name of the type