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[turbopack] Resolve Module Federation imports - #97264

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[turbopack] Resolve Module Federation imports#97264
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@sampoder sampoder commented Aug 12, 2026 •
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This PR resolves imports of shared components (through module federation) to the loader module generated by #97262

@sampoder sampoder changed the title sp/turbopack/mf/import resolution [turbopack] Resolve Module Federation imports Aug 12, 2026
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Tests Passed

Commit: 9c19c26

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Stats from current PR

🔴 2 regressions

Metric Canary PR Change Trend
Webpack Build Time 25.018s 25.558s 🔴 +540ms (+2%) ▁▁▂▁▁
Webpack Build Time (cached) 24.973s 27.027s 🔴 +2.054s (+8%) ▁▁▂▂▁
📊 All Metrics
📖 Metrics Glossary

Dev Server Metrics:

  • Listen = TCP port starts accepting connections
  • First Request = HTTP server returns successful response
  • Cold = Fresh build (no cache)
  • Warm = With cached build artifacts

Build Metrics:

  • Fresh = Clean build (no .next directory)
  • Cached = With existing .next directory

Change Thresholds:

  • Time: Changes < 50ms AND < 10%, OR < 2% are insignificant
  • Size: Changes < 1KB AND < 1% are insignificant
  • All other changes are flagged to catch regressions

⚡ Dev Server

Metric Canary PR Change Trend
Cold (Listen) 812ms 812ms ✓ ▁▂▂▂█
Cold (Ready in log) 785ms 789ms ✓ ▁▁▁▁█
Cold (First Request) 1.283s 1.301s ✓ ▁▂▁▁█
Warm (Listen) 813ms 812ms ✓ ▂▂▂▂█
Warm (Ready in log) 786ms 785ms ✓ ▁▁▁▁█
Warm (First Request) 1.263s 1.284s ✓ ▁▁▁▁█
📦 Dev Server (Webpack) (Legacy)

📦 Dev Server (Webpack)

Metric Canary PR Change Trend
Cold (Listen) 813ms 864ms ✓ ▁▂▂▂▂
Cold (Ready in log) 804ms 828ms ✓ ▁▁▂▁▁
Cold (First Request) 3.545s 3.619s ✓ ▁▁▂▁▁
Warm (Listen) 814ms 815ms ✓ ▂▂▂▂▂
Warm (Ready in log) 813ms 821ms ✓ ▁▂▂▁▁
Warm (First Request) 3.590s 3.679s ✓ ▁▁▂▁▁

⚡ Production Builds

Metric Canary PR Change Trend
Fresh Build 5.679s 5.715s ✓ ▁▂▁▁█
Cached Build 2.903s 2.936s ✓ ▁▂▁▁█
📦 Production Builds (Webpack) (Legacy)

📦 Production Builds (Webpack)

Metric Canary PR Change Trend
Fresh Build 25.018s 25.558s 🔴 +540ms (+2%) ▁▁▂▁▁
Cached Build 24.973s 27.027s 🔴 +2.054s (+8%) ▁▁▂▂▁
node_modules Size 553 MB 553 MB ✓ █████
📦 Bundle Sizes

Bundle Sizes

⚡ Turbopack

Client

Main Bundles
Canary PR Change
0-qgm0nju2p_g.js gzip 65.6 kB N/A -
03lzpt71kg1qg.js gzip 47 kB N/A -
050icza-xjz0i.js gzip 5.73 kB N/A -
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10l611mm67gac.js gzip 71.6 kB N/A -
1elt1qium-r2m.css gzip 115 B 115 B ✓
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1tf1phijqlx9j.js gzip 220 B 220 B ✓
1uzabyd1120a1.js gzip 8.71 kB N/A -
2_uglbwqpe26b.js gzip 156 B N/A -
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38-q43pzktqhs.js gzip 1.46 kB N/A -
3dpw0m5_58h1u.js gzip 160 B N/A -
3gq5gsxwg_yl5.js gzip 151 B N/A -
3mrwxzed0ylgv.js gzip 13.1 kB N/A -
3nbojhxiy1qv_.js gzip 13.7 kB N/A -
3p8f-2kolq65a.js gzip 157 B N/A -
3qmtac2p5up_2.js gzip 156 B N/A -
41u5s3oe2-erp.js gzip 2.29 kB N/A -
445s_9hf8o7ao.js gzip 8.76 kB N/A -
turbopack-0d..9ejy.js gzip 3.74 kB 3.74 kB ✓
0-6bcj16ji2wf.js gzip N/A 10.6 kB -
00i5e2bmvcp3b.js gzip N/A 155 B -
07ryk0jced-sc.js gzip N/A 8.78 kB -
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0k32-8va-4evm.js gzip N/A 155 B -
0rd26mgng5fzz.js gzip N/A 153 B -
0roh390ijzxa5.js gzip N/A 8.75 kB -
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26zt1nty--7dt.js gzip N/A 155 B -
29p5-xa4jmdhg.js gzip N/A 13.7 kB -
2hzkpmnvy0nyg.js gzip N/A 71.6 kB -
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2ugc69z0t0ypz.js gzip N/A 1.46 kB -
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36dn8i-_3dnq5.js gzip N/A 10 kB -
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3y9tus7kb5su0.js gzip N/A 13.3 kB -
Total 401 kB 401 kB ✅ -4 B

Server

Middleware
Canary PR Change
middleware-b..fest.js gzip 1.05 kB 1.06 kB ✓
Total 1.05 kB 1.06 kB ⚠️ +2 B
Build Details
Build Manifests
Canary PR Change
_buildManifest.js gzip 876 B 874 B ✓
Total 876 B 874 B ✅ -2 B
Build Cache
Canary PR Change
00000001.sst gzip 14.2 MB 14 MB 🟢 204 kB (-1%)
00000002.sst gzip 14.2 MB 14.9 MB 🔴 +719 kB (+5%)
00000003.sst gzip 13.5 MB 12.2 MB 🟢 1.32 MB (-10%)
00000004.sst gzip 13.2 MB 14 MB 🔴 +797 kB (+6%)
00000005.sst gzip 2.8 MB 10.2 MB 🔴 +7.4 MB (+264%)
00000006.sst gzip 10.2 MB 2.8 MB 🟢 7.42 MB (-73%)
00000007.sst gzip 59 B 59 B ✓
00000008.meta gzip 89 B 89 B ✓
00000009.meta gzip 298 kB 298 kB ✓
00000010.meta gzip 298 kB 298 kB ✓
00000011.meta gzip 298 kB 298 kB ✓
00000012.sst gzip 52.2 kB 51.8 kB ✓
00000013.sst gzip 1.81 MB 1.82 MB 🔴 +7.92 kB (+0%)
00000014.sst gzip 59 B 59 B ✓
00000015.meta gzip 116 B 116 B ✓
00000016.meta gzip 326 kB 326 kB ✓
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00000018.sst gzip 53 kB 52.7 kB ✓
00000019.sst gzip 1.39 MB 1.4 MB 🔴 +3.99 kB (+0%)
00000020.sst gzip 59 B 59 B ✓
00000021.meta gzip 116 B 116 B ✓
00000022.meta gzip 326 kB 326 kB ✓
00000023.meta gzip 372 kB 372 kB ✓
00000024.sst gzip 53 kB 52.6 kB ✓
00000025.sst gzip 1.39 MB 1.4 MB 🔴 +4.29 kB (+0%)
00000026.sst gzip 59 B 59 B ✓
00000027.meta gzip 116 B 116 B ✓
00000028.meta gzip 326 kB 326 kB ✓
00000029.meta gzip 372 kB 372 kB ✓
00000030.sst gzip 52.4 kB 52.1 kB ✓
00000031.sst gzip 1.39 MB 1.4 MB 🔴 +4.21 kB (+0%)
00000032.sst gzip 59 B 59 B ✓
00000033.meta gzip 116 B 116 B ✓
00000034.meta gzip 326 kB 326 kB ✓
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00000038.sst gzip 59 B 59 B ✓
00000039.meta gzip 116 B 116 B ✓
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CURRENT gzip 94 B 94 B ✓
LOG gzip 672 B 677 B ✓
Total 80.2 MB 80.2 MB ✅ -8.21 kB

📦 Webpack

Client

Main Bundles
Canary PR Change
3322-HASH.js gzip 66.2 kB N/A -
4191.HASH.js gzip 169 B N/A -
7920-HASH.js gzip 4.67 kB N/A -
9784-HASH.js gzip 5.63 kB N/A -
b1ad9f4c-HASH.js gzip 63.2 kB N/A -
framework-HASH.js gzip 59.7 kB 59.7 kB ✓
main-app-HASH.js gzip 254 B 254 B ✓
main-HASH.js gzip 40.1 kB 40.1 kB ✓
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3577.HASH.js gzip N/A 168 B -
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8590-HASH.js gzip N/A 5.61 kB -
9750-HASH.js gzip N/A 4.68 kB -
a8984546-HASH.js gzip N/A 63.2 kB -
Total 242 kB 242 kB ⚠️ +619 B
Polyfills
Canary PR Change
polyfills-HASH.js gzip 39.4 kB 39.4 kB ✓
Total 39.4 kB 39.4 kB ✓
Pages
Canary PR Change
_app-HASH.js gzip 194 B 193 B ✓
_error-HASH.js gzip 181 B 182 B ✓
css-HASH.js gzip 334 B 331 B ✓
dynamic-HASH.js gzip 1.81 kB 1.81 kB ✓
edge-ssr-HASH.js gzip 255 B 253 B ✓
head-HASH.js gzip 349 B 351 B ✓
hooks-HASH.js gzip 382 B 384 B ✓
image-HASH.js gzip 581 B 582 B ✓
index-HASH.js gzip 260 B 259 B ✓
link-HASH.js gzip 2.48 kB 2.48 kB ✓
routerDirect..HASH.js gzip 317 B 318 B ✓
script-HASH.js gzip 384 B 386 B ✓
withRouter-HASH.js gzip 316 B 315 B ✓
1afbb74e6ecf..834.css gzip 106 B 106 B ✓
Total 7.95 kB 7.96 kB ⚠️ +4 B

Server

Edge SSR
Canary PR Change
edge-ssr.js gzip 129 kB 129 kB ✓
page.js gzip 294 kB 294 kB ✓
Total 423 kB 423 kB ✅ -190 B
Middleware
Canary PR Change
middleware-b..fest.js gzip 616 B 615 B ✓
middleware-r..fest.js gzip 156 B 156 B ✓
middleware.js gzip 45.9 kB 45.4 kB 🟢 515 B (-1%)
edge-runtime..pack.js gzip 842 B 842 B ✓
Total 47.5 kB 47 kB ✅ -516 B
Build Details
Build Manifests
Canary PR Change
_buildManifest.js gzip 717 B 718 B ✓
Total 717 B 718 B ⚠️ +1 B
Build Cache
Canary PR Change
0.pack gzip 4.8 MB 4.8 MB ✓
index.pack gzip 122 kB 122 kB ✓
index.pack.old gzip 121 kB 121 kB ✓
Total 5.05 MB 5.04 MB ✅ -4.49 kB

🔄 Shared (bundler-independent)

Runtimes
Canary PR Change
app-page-exp...dev.js gzip 375 kB 375 kB ✓
app-page-exp..prod.js gzip 207 kB 207 kB ✓
app-page-tur...dev.js gzip 374 kB 374 kB ✓
app-page-tur..prod.js gzip 207 kB 207 kB ✓
app-page-tur...dev.js gzip 371 kB 371 kB ✓
app-page-tur..prod.js gzip 204 kB 204 kB ✓
app-page.run...dev.js gzip 371 kB 371 kB ✓
app-page.run..prod.js gzip 205 kB 205 kB ✓
app-route-ex...dev.js gzip 82.9 kB 82.9 kB ✓
app-route-ex..prod.js gzip 56.1 kB 56.1 kB ✓
app-route-tu...dev.js gzip 83 kB 83 kB ✓
app-route-tu..prod.js gzip 56.1 kB 56.1 kB ✓
app-route-tu...dev.js gzip 82.5 kB 82.5 kB ✓
app-route-tu..prod.js gzip 55.9 kB 55.9 kB ✓
app-route.ru...dev.js gzip 82.5 kB 82.5 kB ✓
app-route.ru..prod.js gzip 55.8 kB 55.8 kB ✓
dev-validati...dev.js gzip 134 kB 134 kB ✓
dev-validati...dev.js gzip 134 kB 134 kB ✓
dev-validati...dev.js gzip 131 kB 131 kB ✓
dev-validati...dev.js gzip 131 kB 131 kB ✓
dist_client_...dev.js gzip 324 B 324 B ✓
dist_client_...dev.js gzip 326 B 326 B ✓
dist_client_...dev.js gzip 318 B 318 B ✓
dist_client_...dev.js gzip 317 B 317 B ✓
pages-api-tu...dev.js gzip 46.4 kB 46.4 kB ✓
pages-api-tu..prod.js gzip 34.6 kB 34.6 kB ✓
pages-api.ru...dev.js gzip 46.4 kB 46.4 kB ✓
pages-api.ru..prod.js gzip 34.5 kB 34.5 kB ✓
pages-turbo....dev.js gzip 55.2 kB 55.2 kB ✓
pages-turbo...prod.js gzip 40.1 kB 40.1 kB ✓
pages.runtim...dev.js gzip 55.1 kB 55.1 kB ✓
pages.runtim..prod.js gzip 40.1 kB 40.1 kB ✓
server.runti..prod.js gzip 67.1 kB 67.1 kB ✓
use-cache-pr...dev.js gzip 72.6 kB 72.6 kB ✓
use-cache-pr...dev.js gzip 72.6 kB 72.6 kB ✓
use-cache-pr...dev.js gzip 70.8 kB 70.8 kB ✓
use-cache-pr...dev.js gzip 70.8 kB 70.8 kB ✓
Total 4.11 MB 4.11 MB ✓
📎 Tarball URL 
https://vercel-packages.vercel.app/next/commits/9c19c26b1d9a294e9d7a90b5b801a985767828e1/next

Commit: 9c19c26

@sampoder
sampoder marked this pull request as ready for review August 12, 2026 23:37
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