[whatwg/fetch] Integrate early hints https://tools.ietf.org/html/rfc8297 (#1225) from Adam Rice on 2021-04-28 (public-webapps-github@w3.org from April 2021)

From: Adam Rice <notifications@github.com>
Date: Wed, 28 Apr 2021 00:32:24 -0700
To: whatwg/fetch <fetch@noreply.github.com>
Cc: Subscribed <subscribed@noreply.github.com>
Message-ID: <whatwg/fetch/issues/1225@github.com>

Early hints are a mechanism permitting servers to indicate resources that might need to be preloaded before the final status and response headers are ready. This is implemented using the "103 Early Hints" status code. The protocol standard is here: https://tools.ietf.org/html/rfc8297.

Chrome is experimenting with early hints as an alternative to HTTP/2 push to reduce latency, without the complexity and traps of HTTP/2 push. Early results are promising.

Early hints will need to be integrated into the Fetch Standard processing model to ensure interoperability. This issue is to track that effort.

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Received on Wednesday, 28 April 2021 07:32:37 UTC