Cloudflare, Inc.
Generating early hints informational responses at an intermediary server

Abstract:

An intermediary server determines, for an asset handled by an origin server, piece(s) of content for inclusion in link header field(s) in an informational response that signifies that the piece(s) of content are predicted to be linked within a final response for the asset. The intermediary server generates an informational response that includes the link header field(s) and responds to a request from a client with the informational response. The intermediary server transmits the request to the origin server. The intermediary server receives the final response to the request from the origin server, and transmits the final response to the client.