[test] Current behavior of focus after `next/link` navigation by eps1lon · Pull Request #89959 · vercel/next.js

eps1lon · 2026-02-13T15:11:46Z

We try to focus the new Segment after navigation. This behavior currently has now tests. I plan to change that behavior behind experimental.appNewScrollHandler so I'm adding some tests for the current behavior. The test is also meant as a fixture for manual testing with a screen reader.

eps1lon · 2026-02-13T15:12:07Z

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nextjs-bot · 2026-02-13T15:30:12Z

Stats from current PR

✅ No significant changes detected

📊 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)	455ms	456ms	✓	▁▁▁█▁
Cold (Ready in log)	443ms	440ms	✓	▁▁▂█▁
Cold (First Request)	1.284s	1.243s	✓	▁▅▄█▁
Warm (Listen)	456ms	456ms	✓	▁▁▁█▁
Warm (Ready in log)	445ms	444ms	✓	▁▁▁█▁
Warm (First Request)	349ms	349ms	✓	▂▁▁█▁

📦 Dev Server (Webpack) (Legacy)

📦 Dev Server (Webpack)

Metric	Canary	PR	Change	Trend
Cold (Listen)	455ms	456ms	✓	▁▁▁▁▁
Cold (Ready in log)	439ms	440ms	✓	▁▃▁▂▃
Cold (First Request)	1.961s	1.943s	✓	▁▂▁▁▂
Warm (Listen)	456ms	456ms	✓	▁▁▁▁▁
Warm (Ready in log)	439ms	438ms	✓	▁▄▁▆▄
Warm (First Request)	1.972s	1.962s	✓	▁▂▁▃▂

⚡ Production Builds

Metric	Canary	PR	Change	Trend
Fresh Build	3.903s	3.955s	✓	▃▁▁█▁
Cached Build	4.026s	3.939s	✓	▃▁▁█▁

📦 Production Builds (Webpack) (Legacy)

📦 Production Builds (Webpack)

Metric	Canary	PR	Change	Trend
Fresh Build	13.985s	14.001s	✓	▁▁▁▁▁
Cached Build	14.027s	14.036s	✓	▁▁▁▁▁
node_modules Size	472 MB	472 MB	✓	█████

📦 Bundle Sizes

Bundle Sizes

⚡ Turbopack

Client

Main Bundles: **398 kB** → **398 kB** ✅ -4 B

80 files with content-based hashes (individual files not comparable between builds)

Server

Middleware

	Canary	PR	Change
middleware-b..fest.js gzip	758 B	764 B	✓
Total	758 B	764 B	⚠️ +6 B

Build Details

Build Manifests

	Canary	PR	Change
_buildManifest.js gzip	450 B	452 B	✓
Total	450 B	452 B	⚠️ +2 B

📦 Webpack

Client

Main Bundles

	Canary	PR	Change
5528-HASH.js gzip	5.47 kB	N/A	-
6280-HASH.js gzip	57.1 kB	N/A	-
6335.HASH.js gzip	169 B	N/A	-
912-HASH.js gzip	4.53 kB	N/A	-
e8aec2e4-HASH.js gzip	62.6 kB	N/A	-
framework-HASH.js gzip	59.7 kB	59.7 kB	✓
main-app-HASH.js gzip	256 B	254 B	✓
main-HASH.js gzip	39.1 kB	39.1 kB	✓
webpack-HASH.js gzip	1.68 kB	1.68 kB	✓
262-HASH.js gzip	N/A	4.53 kB	-
2889.HASH.js gzip	N/A	169 B	-
5602-HASH.js gzip	N/A	5.48 kB	-
6948ada0-HASH.js gzip	N/A	62.6 kB	-
9544-HASH.js gzip	N/A	57.8 kB	-
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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	194 B	✓
_error-HASH.js gzip	183 B	180 B	🟢 3 B (-2%)
css-HASH.js gzip	331 B	330 B	✓
dynamic-HASH.js gzip	1.81 kB	1.81 kB	✓
edge-ssr-HASH.js gzip	256 B	256 B	✓
head-HASH.js gzip	351 B	352 B	✓
hooks-HASH.js gzip	384 B	383 B	✓
image-HASH.js gzip	580 B	581 B	✓
index-HASH.js gzip	260 B	260 B	✓
link-HASH.js gzip	2.5 kB	2.5 kB	✓
routerDirect..HASH.js gzip	320 B	319 B	✓
script-HASH.js gzip	386 B	386 B	✓
withRouter-HASH.js gzip	315 B	315 B	✓
1afbb74e6ecf..834.css gzip	106 B	106 B	✓
Total	7.97 kB	7.97 kB	✅ -2 B

Server

Edge SSR

	Canary	PR	Change
edge-ssr.js gzip	126 kB	125 kB	✓
page.js gzip	250 kB	250 kB	✓
Total	375 kB	376 kB	⚠️ +349 B

Middleware

	Canary	PR	Change
middleware-b..fest.js gzip	616 B	615 B	✓
middleware-r..fest.js gzip	156 B	155 B	✓
middleware.js gzip	43.6 kB	43.7 kB	✓
edge-runtime..pack.js gzip	842 B	842 B	✓
Total	45.2 kB	45.3 kB	⚠️ +109 B

Build Details

Build Manifests

	Canary	PR	Change
_buildManifest.js gzip	715 B	718 B	✓
Total	715 B	718 B	⚠️ +3 B

Build Cache

	Canary	PR	Change
0.pack gzip	3.89 MB	3.9 MB	🔴 +11.1 kB (+0%)
index.pack gzip	103 kB	102 kB	✓
index.pack.old gzip	104 kB	103 kB	✓
Total	4.1 MB	4.11 MB	⚠️ +10.1 kB

🔄 Shared (bundler-independent)

Runtimes

	Canary	PR	Change
app-page-exp...dev.js gzip	316 kB	316 kB	✓
app-page-exp..prod.js gzip	168 kB	168 kB	✓
app-page-tur...dev.js gzip	316 kB	316 kB	✓
app-page-tur..prod.js gzip	168 kB	168 kB	✓
app-page-tur...dev.js gzip	312 kB	312 kB	✓
app-page-tur..prod.js gzip	166 kB	166 kB	✓
app-page.run...dev.js gzip	313 kB	313 kB	✓
app-page.run..prod.js gzip	166 kB	166 kB	✓
app-route-ex...dev.js gzip	70.5 kB	70.5 kB	✓
app-route-ex..prod.js gzip	49 kB	49 kB	✓
app-route-tu...dev.js gzip	70.5 kB	70.5 kB	✓
app-route-tu..prod.js gzip	49.1 kB	49.1 kB	✓
app-route-tu...dev.js gzip	70.1 kB	70.1 kB	✓
app-route-tu..prod.js gzip	48.8 kB	48.8 kB	✓
app-route.ru...dev.js gzip	70.1 kB	70.1 kB	✓
app-route.ru..prod.js gzip	48.8 kB	48.8 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	43.2 kB	43.2 kB	✓
pages-api-tu..prod.js gzip	32.9 kB	32.9 kB	✓
pages-api.ru...dev.js gzip	43.2 kB	43.2 kB	✓
pages-api.ru..prod.js gzip	32.8 kB	32.8 kB	✓
pages-turbo....dev.js gzip	52.5 kB	52.5 kB	✓
pages-turbo...prod.js gzip	38.4 kB	38.4 kB	✓
pages.runtim...dev.js gzip	52.5 kB	52.5 kB	✓
pages.runtim..prod.js gzip	38.4 kB	38.4 kB	✓
server.runti..prod.js gzip	63.5 kB	63.5 kB	✓
Total	2.8 MB	2.8 MB	⚠️ +2 B

nextjs-bot · 2026-02-17T18:08:55Z

Tests Passed

eps1lon · 2026-02-18T17:26:01Z

Merge activity

Feb 18, 5:26 PM UTC: A user started a stack merge that includes this pull request via Graphite.
Feb 18, 5:26 PM UTC: @eps1lon merged this pull request with Graphite.

nextjs-bot added created-by: Next.js team PRs by the Next.js team. tests labels Feb 13, 2026

This was referenced Feb 13, 2026

[fragment-scroll] Ensure hoisted elements don't break scroll-to-top on page navigations #83108

Merged

[fragment-scroll] Add experimental.appNewScrollHandler #83107

Merged

[fragment-scroll] Cleanup scroll and focus restoration in layout router #83110

Merged

This was referenced Feb 13, 2026

[test] Ensure new deploy test builds have the necessary env variables #89846

Merged

[fragment-scroll] Stop focusing the first focusable host descendant #89903

Merged

eps1lon changed the base branch from sebbie/08-27-fix_scroll_restoration_bugs to graphite-base/89959 February 14, 2026 13:42

eps1lon force-pushed the sebbie/02-12-_test_current_behavior_of_focus_after_next/link_navigation branch from b42b301 to 1d8d157 Compare February 14, 2026 13:42

eps1lon force-pushed the graphite-base/89959 branch from b7efaee to 9662feb Compare February 14, 2026 13:42

graphite-app bot changed the base branch from graphite-base/89959 to canary February 14, 2026 13:43

eps1lon force-pushed the sebbie/02-12-_test_current_behavior_of_focus_after_next/link_navigation branch 2 times, most recently from da3c183 to 5213184 Compare February 17, 2026 18:05

eps1lon requested a review from ztanner February 17, 2026 18:58

eps1lon marked this pull request as ready for review February 17, 2026 18:58

eps1lon requested a review from unstubbable February 17, 2026 18:58

[test] Current behavior of focus after next/link navigation

88f7c75

eps1lon force-pushed the sebbie/02-12-_test_current_behavior_of_focus_after_next/link_navigation branch from 5213184 to 88f7c75 Compare February 17, 2026 20:11

ztanner approved these changes Feb 18, 2026

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eps1lon merged commit e17b115 into canary Feb 18, 2026
286 of 288 checks passed

eps1lon deleted the sebbie/02-12-_test_current_behavior_of_focus_after_next/link_navigation branch February 18, 2026 17:26

github-actions bot added the locked label Mar 5, 2026

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[test] Current behavior of focus after `next/link` navigation#89959

[test] Current behavior of focus after `next/link` navigation#89959
eps1lon merged 1 commit intocanaryfrom
sebbie/02-12-_test_current_behavior_of_focus_after_next/link_navigation

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