Intent to Prototype: Prefetch activation beacon

[Jiacheng Guo]

Contact emails

g...@google.com

Explainer

https://github.com/explainers-by-googlers/prefetch-activation-beacon

Specification

No information provided

Summary

The on-prefetch-activation HTTP response header enables servers to specify a telemetry endpoint that the browser notifies when a prefetched resource is used for navigation. Developers gain a reliable signal to measure the precision and performance impact of their prefetch strategies.

Blink component

Blink>Loader>Preload

Web Feature ID

Missing feature

Motivation

The API is proposed for a reliable measurement of whether a prefetch page is activated. This allows precise visit statistics for the prefetched page without cache interference.

Initial public proposal

https://github.com/WICG/proposals/issues/284

Goals for experimentation

None

Requires code in //chrome?

False

Tracking bug

https://b.corp.google.com/issues/499814382

Launch bug

https://launch.corp.google.com/launch/4468679

Estimated milestones

M150

Link to entry on the Chrome Platform Status

https://chromestatus.com/feature/5118934710878208?gate=5175566203486208