こんにちは TAG-さん!

I'm requesting a TAG review of DOM state-preserving move.

This is a feature that allows moving elements around the DOM without their state being reset as a result (e.g. iframes won't reload if moved in this manner)

• Explainer¹ (minimally containing user needs and example code): https://github.com/noamr/dom/blob/spm-explainer/moveBefore-explainer.md
• Specification URL: https://dom.spec.whatwg.org/
• Tests: https://wpt.fyi/results/dom/nodes/moveBefore/tentative
• User research: See the DOM issue (Atomic move operation for element reparenting & reordering whatwg/dom#1255). Several framework authors have participated in this discussion. Note that if frameworks adopt this, for many of their users will get this "for free".
• Security and Privacy self-review²: https://github.com/noamr/dom/blob/spm-explainer/moveBefore-explainer.md#self-review-questionnaire-security-and-privacy
• GitHub repo: https://github.com/whatwg/dom
• Primary contacts (and their relationship to the specification):
  • Dominic Farolino
  • Noam Rosenthal
• Organization(s)/project(s) driving the specification: Google
• Key pieces of existing multi-stakeholder (e.g. developers, implementers, civil society) support, review or discussion of this specification
• Key pieces of multi-implementer support:
  • See discussion at Atomic move operation for element reparenting & reordering whatwg/dom#1255. The proposal is now at stage 1 after a conversation with the stakeholders.
• External status/issue trackers for this specification (publicly visible, e.g. Chrome Status):
  https://chromestatus.com/feature/5135990159835136

Further details:

• I have reviewed the TAG's Web Platform Design Principles
• Relevant time constraints or deadlines: N/a
• The group where the work on this specification is currently being done: WHATWG
• The group where standardization of this work is intended to be done (if current group is a community group or other incubation venue): WHATWG
• Major unresolved issues with or opposition to this specification:
• This work is being funded by: Google

You should also know that...
A lot of work on this was already done in the WHATWG context, however there is still time until anything is shipped. So this is a good time to also get some input from TAG!
.