こんにちは TAG-さん!

I'm requesting an early TAG design review of the Container Timing API.

The Container Timing API enables monitoring when annotated sections of the DOM are displayed on screen and have finished their initial paint.

• Explainer¹:https://github.com/bloomberg/container-timing
• User research:
• Security and Privacy self-review²: This is essentially an extension of the Element Timing API (https://github.com/w3ctag/design-reviews/issues/326) so the same security constraints apply
• GitHub repo:https://github.com/bloomberg/container-timing
• Primary contacts:
  • Jason Williams (@jasonwilliams), Bloomberg, Author
  • José Dapena Paz (@jdapena), Igalia, Author
• Organization/project driving the design: Bloomberg
• Multi-stakeholder feedback³:
  • Chromium comments:
  • Mozilla comments: https://github.com/mozilla/standards-positions/issues/1155
  • WebKit comments: https://github.com/WebKit/standards-positions/issues/442
  • positive signals from developers (GitHub is supportive)

Further details:

• I have reviewed the TAG's Web Platform Design Principles
• The group where the incubation/design work on this is being done (or is intended to be done in the future): This will likely move to WICG or the Web Perf WG.
• The group where standardization of this work is intended to be done ("unknown" if not known): This will likely move to WICG or the Web Perf WG.
• Existing major pieces of multi-implementer review or discussion of this design:
• Major unresolved issues with or opposition to this design:
• This work is being funded by: Bloomberg

You should also know that... y'all are great, keep up the great work!