[w3ctag/design-reviews] Incubation: new speculation rules action: prerender_until_script (Issue #1183)

Clqsin45 created an issue (w3ctag/design-reviews#1183)

### Explainer

https://github.com/WICG/nav-speculation/blob/main/prerender-until-script.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/WICG/nav-speculation
- Primary contacts:
  - Lingqi Chi (@-Clqsin45), Google, contributor
  - Domenic Denicola (@domenic), Google, editor
  - Jeremy Roman (@jeremyroman), Google, editor
- Organization/project driving the design: Google Chrome
- This work is being funded by: Google
- Incubation and standards groups that have discussed the design:
  - WebPerf, during TPAC 2025
- Standards group(s) that you expect to discuss and/or adopt this work when it's
  unknown


### Feedback so far

- Multi-stakeholder feedback:
  - Chromium comments: 
  - Mozilla comments: https://github.com/mozilla/standards-positions/issues/620
  - WebKit comments: https://github.com/WebKit/standards-positions/issues/54 
  - Developer feedback: https://github.com/WICG/nav-speculation/issues/305


### You should also know that...

こんにちは TAG-さん!

I'm requesting a TAG review of a new speculation action of prerender_until_script. 
This proposes a new action for the Speculation Rules API, prerender_until_script. This action is designed to provide developers with an intermediate option between the existing prefetch and prerender actions.

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Received on Tuesday, 13 January 2026 06:22:27 UTC