feat(rsc-mf): implement MF RSC support by ScriptedAlchemy · Pull Request #8366 · web-infra-dev/modern.js

ScriptedAlchemy · 2026-02-23T22:51:56Z

What changed vs `main`

add a full integration fixture at tests/integration/rsc-mf (host + remote) that exercises Module Federation + React Server Components end-to-end in both dev and build flows
keep @module-federation/modern-js-v3 consumption canary-scoped to the new rsc-mf fixture (tests/integration/rsc-mf/{host,remote})
remove the vendored in-repo packages/modernjs-v3 copy so plugin source-of-truth remains in module-federation/core
restore i18n MF fixture package specs for @module-federation/modern-js-v3 back to published version (2.0.0) instead of workspace:*
keep dependency-consistency strict globally, while ignoring only the dedicated canary fixture paths in scripts/check-dependencies.js

Why

avoid duplicating plugin implementation across repositories now that modernjs-v3 updates ship from module-federation/core
validate the real canary artifact in Modern.js integration tests rather than validating an in-repo copy
keep CI deterministic with canary usage isolated to explicit integration fixtures

Validation

pnpm run check-dependencies
pnpm run test:framework --testPathPattern=integration/rsc-mf/tests/index.test.ts

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…age fixture-scoped Drop the in-repo modernjs-v3 package copy now that plugin updates ship from module-federation/core canaries, and restore i18n fixture dependency specs to published versions. Co-authored-by: Cursor <cursoragent@cursor.com>

…o cursor/module-federation-rsc-example-16dd

Co-authored-by: Cursor <cursoragent@cursor.com>

2heal1 · 2026-02-24T10:01:38Z

Want to confirm whether this PR is ready for review ?

…ap assertion

cursoragent added 30 commits February 13, 2026 23:30

refactor(rsc-mf): drop remote client chunkLoadingGlobal override

0f0ca8e

refactor(rsc-mf): consume bundled action expose via namespace import

e75f56e

test(rsc-mf): assert action posts avoid remote origin

336d821

test(rsc-mf): assert host-resolvable x-rsc-action ids

6c19452

refactor(rsc-mf): use namespace imports in host server bundle coverage

ed0f9f5

refactor(rsc-mf): route host proxy actions through bundled expose imp…

a40bae2

…orts

test(rsc-mf): assert host proxy action manifest coverage

99989e1

test(rsc-mf): cover bundled nested and increment host actions

cf1e7fb

refactor(rsc-mf): stabilize remote callback registration keying

6871db7

refactor(rsc-mf): avoid client stringify in callback dependency

051929d

test(rsc-mf): assert posted action ids match host proxy set

6cb5574

refactor(rsc-mf): centralize host proxy mapping and manifest forms

76ec229

test(rsc-mf): assert host proxy id list uniqueness and format

4368d53

test(rsc-mf): surface direct and bundled proxy id groups

25af768

test(rsc-mf): validate proxy id group union membership

6256add

test(rsc-mf): assert proxy map entry count aligns with ids

225df15

test(rsc-mf): assert proxy map entry count aligns with ids

d806ec0

test(rsc-mf): assert mapped proxy id coverage markers

f02e2cf

refactor(rsc-mf): model effective remote action map keys

c220479

test(rsc-mf): bind posted action ids to effective map key count

db078ac

test(rsc-mf): handle direct-bundled id collisions in request checks

35e033c

test(rsc-mf): expose exact proxy-map equality diagnostics

12dd1e0

test(rsc-mf): expose proxy map collision count diagnostics

661c5c3

test(rsc-mf): cover remote client default server action path

ee24d53

test(rsc-mf): assert request coverage across action families

7483029

test(rsc-mf): cover direct host nested and increment actions

9d3c307

test(rsc-mf): enforce minimum action post volume per mode

0c0ca33

test(rsc-mf): require action-family union coverage for posted ids

963c240

test(rsc-mf): require action-family union coverage for posted ids

6f81467

test(rsc-mf): assert repeated client callback request growth

1256515

cursoragent and others added 16 commits February 18, 2026 02:59

fix(rsc-mf): harden callback routing and target config patching

de599db

Co-authored-by: Zack Jackson <ScriptedAlchemy@users.noreply.github.com>

fix(rsc-mf): harden action fallback and static headers

27af5a7

test(modernjs-v3): include config contract in rstest suite

66d692f

Co-authored-by: Zack Jackson <ScriptedAlchemy@users.noreply.github.com>

chore(ci): trigger workflow rerun

69eb929

Co-authored-by: Zack Jackson <ScriptedAlchemy@users.noreply.github.com>

fix(ci): resolve lint regressions in rsc-mf changes

6180082

Co-authored-by: Zack Jackson <ScriptedAlchemy@users.noreply.github.com>

test(builder): refresh snapshots after rsc-mf config updates

c3edf41

Co-authored-by: Zack Jackson <ScriptedAlchemy@users.noreply.github.com>

test(e2e): align inline-chunk runtime assertions

cf44bf9

Co-authored-by: Zack Jackson <ScriptedAlchemy@users.noreply.github.com>

test(e2e): update inline chunk html runtime expectations

7642d35

Co-authored-by: Zack Jackson <ScriptedAlchemy@users.noreply.github.com>

fix(rsc-mf): update bridge runtime and test coverage

8558ccb

fix: harden rsc bridge alias resolution and bundle path checks

3f4e4d5

Co-authored-by: Zack Jackson <ScriptedAlchemy@users.noreply.github.com>

test: format fallback alias runtime guard assertion

c196826

Co-authored-by: Zack Jackson <ScriptedAlchemy@users.noreply.github.com>

fix: harden mf rsc bundle loading and runtime hooks

22094ea

fix: align callServer window access and avoid global strategy state

52489bf

chore(rsc-mf): refresh federation canary pins and fixture contracts

27bb4e0

Update fixture package pins to the latest core canaries and tighten rsc-mf containment resolution contracts to match the new modern-js-v3 loading behavior. Co-authored-by: Cursor <cursoragent@cursor.com>

chore(ci): ignore rsc-mf canary fixture paths in dependency consisten…

5683fbe

…cy check Co-authored-by: Cursor <cursoragent@cursor.com>

ScriptedAlchemy mentioned this pull request Feb 23, 2026

test(integration): add rsc-mf fixture for module federation + RSC ScriptedAlchemy/modern.js#1

Closed

3 tasks

ScriptedAlchemy changed the title ~~test(integration): add rsc-mf fixture for module federation + RSC~~ feat(modernjs-v3): port MF v3 RSC bridge and add rsc-mf fixture Feb 23, 2026

ScriptedAlchemy changed the title ~~feat(modernjs-v3): port MF v3 RSC bridge and add rsc-mf fixture~~ feat(rsc-mf): validate core modernjs-v3 canary via MF + RSC fixture Feb 23, 2026

ScriptedAlchemy changed the title ~~feat(rsc-mf): validate core modernjs-v3 canary via MF + RSC fixture~~ feat(rsc-mf): implement MF RSC support Feb 24, 2026

ScriptedAlchemy and others added 2 commits February 24, 2026 00:10

Merge branch 'main' of https://github.com/web-infra-dev/modern.js int…

9a8776a

…o cursor/module-federation-rsc-example-16dd

fix(ci): sync pnpm lockfile after upstream main merge

ae121f9

Co-authored-by: Cursor <cursoragent@cursor.com>

ScriptedAlchemy added 4 commits February 24, 2026 19:18

chore: commit local package.json change before sync

d5dea8d

fix(rsc): wrap resolver errors and align inline-chunk hidden-source-m…

98de3a5

…ap assertion

fix(server-core): fallback to strategy on sync bundle load errors

7b39938

fix(rsc): harden action URL resolution and test isolation

6c1c8ea

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feat(rsc-mf): implement MF RSC support#8366

feat(rsc-mf): implement MF RSC support#8366
ScriptedAlchemy wants to merge 327 commits intoweb-infra-dev:mainfrom
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ScriptedAlchemy commented Feb 23, 2026 •

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