[w3ctag/design-reviews] Incubation: PWA (same-site) Origin Migration (Issue #1164)

mkruisselbrink created an issue (w3ctag/design-reviews#1164)

### Explainer

https://github.com/WICG/manifest-incubations/blob/gh-pages/pwa-migration-explainer.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/).
- [ ] 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/manifest-incubations
- Primary contacts:
  - Marijn Kruisselbrink (@mkruisselbrink), Google
  - Daniel Murphy (@dmurph), Google
- Organization/project driving the design: Google Chrome
- This work is being funded by: Google 
- Incubation and standards groups that have discussed the design:
  - WICG (https://github.com/WICG/manifest-incubations/pull/121)
- Standards group(s) that you expect to discuss and/or adopt this work when it's
  ready: WebApps WG


### Feedback so far

- Multi-stakeholder feedback:
  - Chromium comments: prototyping/implementing
  - Mozilla comments: Not yet filed for a standards position
  - WebKit comments: Not yet filed for a standards position
  - There is some positive feedback from developers in the [chromium implementation bug](https://issues.chromium.org/u/1/issues/380486617#comment4)
- Major unresolved issues with or opposition to this design:


### You should also know that...

_No response_

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Received on Thursday, 30 October 2025 17:33:24 UTC