WebPerf Group Call

first up, Perf timeline L2: https://github.com/w3c/performance-timeline/issues/62

todd: I agree.

RESOLUTION: push L2 to CR

next up, User Timing L2: I believe we're good to push to CR, xiaoqian or plh to push it forward

Page Visibility: https://github.com/w3c/page-visibility/pull/27

next up, Resource Timing L2 issues

nexthopprotocol: https://github.com/w3c/resource-timing/pull/78

Todd: there is a use case for devs that want to know what types of caches (e.g. serviceworker); ALPN is, on the other hand, is already crisply defined.. so this may not be the right place

Yoav/Shubhie: there is an intent thread on Blink which has privacy/security feedback and questions.

Nic: we have lots of customers that don't know which protocol is being used, they're really excited about nextHopProtocol.

Yoav: it would be useful to have "customer use cases" doc to help motivate this

scheduling of add/queue: https://github.com/w3c/resource-timing/pull/79

Yoav: one of the tests in webkti implementation was testing whether resource is available at onload. After investigating it, implementations didn't agree...

_ could live either way, but current state of different implementations, is a mess

Todd: "should" is a little weak, ideally we'd have MUST
... "after onload" might be tricky to implement

Yoav: with regards to images and onload, I believe onload is a microtask.. which means that onload can fire before image is visible.

Todd: I'd like to check-in with our guys about what the implications of running add step after onload

definition of responsestart: https://github.com/w3c/resource-timing/issues/63

initiatorType: https://github.com/w3c/resource-timing/issues/69

we don't define fallback value: FF says "other", Chrome reports empty string.

https://w3c.github.io/resource-timing/#dom-performanceresourcetiming-initiatortype

NicJansma: we collapse "other" and "" into same bucket, collapsing in either direction is fine.

plh: "other" seems better as empty string

Todd: our plan was to use "fetch" for fetch and "sendBeacon" for beacon.

rough consensus: "other", add sendbeacon and fetch. AI: investigate custom elements.

For navigation timing, use "navigation".

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Present: igrigorik John Todd Nolan Yoav Xiaoqian n8s NicJansma Shubhie plh

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