The PRELOAD Frame Extension

Document Type Expired Internet-Draft (individual)
Author Hiroyuki Goto 
Last updated 2019-07-22 (latest revision 2019-01-09)
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


A server can send application data before a client sends data if they are using HTTP/2 with TLS1.3 or HTTP/3. Indicating loading of necessary resources without waiting for the first request from the client may improve page loading performance. This document defines the PRELOAD frame, which is a new extension frame that allows the server to notify of preload information.


Hiroyuki Goto (

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)