[w3ctag/design-reviews] Incubation: Lightweight and Conditional Tracing for long animation frame timing API (Issue #1224)

guohuideng2024 created an issue (w3ctag/design-reviews#1224)

### Explainer

https://github.com/MicrosoftEdge/MSEdgeExplainers/blob/main/ConditionalTracing/explainer-for-loaf.md

### The explainer

- [x] Includes the information requested by the [Explainer Explainer](https://w3ctag.github.io/explainer-explainer/#introduction).
- [x] Follows the [Web Platform Design Principles](https://www.w3.org/TR/design-principles/).
- [x] Includes or links to answers to the [Security/Privacy Questionnaire](https://www.w3.org/TR/security-privacy-questionnaire/).
- [x] Describes user research you did to validate the problem and/or design.

### Where and by whom is the work is being done?

- GitHub repo:https://github.com/w3c/long-animation-frames
- Primary contacts:
  - [guohuideng@microsoft.com](mailto:guohuideng@microsoft.com)
- Organization/project driving the design: Microsoft and Google
- This work is being funded by: Microsoft and Google
- Incubation and standards groups that have discussed the design:
  - github discussion: https://github.com/w3c/long-animation-frames/issues/3
  - WebPerf WG minutes: https://docs.google.com/document/d/1M56DC5CweAcMCNd3yc_eDRuDNmfwcx3CQLRTWoMG4AM/edit?tab=t.0#heading=h.bpywm5gwk0li
- Standards group(s) that you expect to discuss and/or adopt this work when it's
  ready: WebPerfWG


### Feedback so far

- Multi-stakeholder feedback:
  - Chromium comments: planning to prototype this and work with the WebPerfWG.
  - Mozilla comments: TBD
  - WebKit comments: TBD
- Major unresolved issues with or opposition to this design: N/A


### You should also know that...

_No response_

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Received on Tuesday, 28 April 2026 21:04:08 UTC