Zack TannerandGitHub ccfe67aa8d Return 200 for client-handled Server Action redirects (#96310)
## Summary

Client-handled Server Action redirects currently return a `303` without
a `Location` header and may include a streamed RSC response body. Some
HTTP intermediaries reject this response or strip its body because it
looks like an HTTP redirect.

Return `200` for client-handled Server Action redirects while continuing
to use `x-action-redirect` and the RSC response. Progressive-enhancement
form submissions still return a standards-compliant `303` with
`Location`.

Fixes #92882
Fixes #74026

## Verification

- `HEADLESS=true pnpm test-dev-turbo
test/e2e/app-dir/actions/app-action.test.ts
test/e2e/app-dir/app-basepath/index.test.ts
test/e2e/app-dir/actions/app-action-progressive-enhancement.test.ts`
- `HEADLESS=true pnpm test-start-turbo
test/e2e/app-dir/actions/app-action.test.ts
test/e2e/app-dir/app-basepath/index.test.ts
test/e2e/app-dir/actions/app-action-progressive-enhancement.test.ts`
- `pnpm --filter=next types`

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2026-07-28 16:04:34 -04:00
2025-10-13 10:43:51 +02:00
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2026-07-14 08:03:43 +02:00
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