New directive 'H2EarlyHint name value' to add headers to a response,
picked up already when a "103 Early Hints" response is sent. 'name' and
'value' must comply to the HTTP field restrictions.
This directive can be repeated several times and header fields of the
same names add. Sending a 'Link' header with 'preload' relation will
also cause a HTTP/2 PUSH if enabled and supported by the client.
New directive 'H2EarlyHint name value' to add headers to a response, picked up already when a "103 Early Hints" response is sent. 'name' and 'value' must comply to the HTTP field restrictions. This directive can be repeated several times and header fields of the same names add. Sending a 'Link' header with 'preload' relation will also cause a HTTP/2 PUSH if enabled and supported by the client.