HTTP3 Server Push

Creator

Creator

Seonglae Cho

Created

Created

2021 Jun 21 9:30

Editor

Editor

Seonglae Cho

Edited

Edited

2021 Jul 25 16:12

Refs

Refs

HTTP2 Server Push

Several HTTP/3 frames are used to manage server push

similar to what is described in HTTP/2

Pushing is never "free", since while it saves a half round-trip it still uses bandwidth

It is often hard or impossible for the server-side to actually know with a high level of certainty if a resource should be pushed or not.

A server push is effectively the response to a request that the client never sent! Server pushes are only allowed to happen if the client side has agreed to them. In HTTP/3 the client even sets a limit for how many pushes it accepts by informing the server what the max push stream ID is.

https://http3-explained.haxx.se/en/h3/h3-push

Server push

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