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fix(web): header path checks match whole segments, no 404 hydration error (web 0.62.6) - #617
The 404 page is prerendered once, as /_not-found, but the site header chose the sign-in link (and the active nav link) from the browser's path with startsWith checks. On a missing URL such as /loginlog-in, /login/foo or /auth/foo the browser hid the sign-in link that the prerendered HTML has, and React threw a hydration mismatch (#418).
StatOSS showed this as a browser issue on a 404 for a malformed login URL; it reproduces in a clean browser on production.
Change
SiteHeader takes notFound, which app/not-found.tsx passes: the header then reads no path at all, so the prerendered HTML and the browser always agree on the 404 page.
headerPlace() matches whole path segments (/login, /auth/..., /dashboard, /account, /teams), so a page that only starts with those letters is not taken for one. Real pages behave as before; /auth itself (a 404) is not an auth page.
Unit test for the helper; web 0.62.6 with a changelog entry.
Testing
pnpm test in apps/web: all unit tests pass; ESLint and tsc clean
…rror (web 0.62.6)
The 404 page is prerendered, but the header decided whether to show the
sign-in link with a plain prefix check on the browser's path. A missing
URL that only started with "/login" (or "/dashboard", "/account",
"/teams") rendered the link in the HTML and hid it in the browser, so
React reported a hydration mismatch (#418). The checks now match whole
path segments, as the nav links already did.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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Walkthrough
The header now classifies authentication and app paths using complete path segments. Tests cover matching paths and similar prefixes. The web package version and changelog are updated to 0.62.6.
Changes: Header Route Classification
Layer / File(s)
Summary
Route matching and release update apps/web/components/nav/site-header.tsx, apps/web/components/nav/site-header.test.tsx, apps/web/lib/changelog.ts, apps/web/package.json
headerPlace matches exact paths and slash-delimited descendants for auth and app routes. SiteHeader uses this helper. Tests cover matching paths and similar prefixes. The package version and changelog are updated to 0.62.6.
The route matching fix leaves a narrow hydration concern on exact /auth. Restore its previous classification before merging, or explicitly accept this bounded risk.
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The title accurately identifies the main header path-matching fix and the related 404 hydration error. It also includes the web version update, but remains clear and specific.
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Add a render test for the SiteHeader sign-in link on similar-prefix paths.
site-header.test.tsx tests only headerPlace. SiteHeader calls that helper at site-header.tsx:80 to choose the sign-in link, but no test renders the component. If SiteHeader reverted to startsWith checks, these tests would still pass. Add a test that renders SiteHeader with usePathname returning /loginlog-in and asserts that the Sign in link appears.
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Review comment at @apps/web/components/nav/site-header.test.tsx around lines 17
- 22:
site-header.test.tsx only tests headerPlace, so it would not catch a startsWith
regression in SiteHeader. Add a render test for SiteHeader with usePathname
returning /loginlog-in, and assert that the Sign in link appears; leave the
existing headerPlace tests intact.
Fix comments: Fix CodeRabbit comments on this PR
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instructions embedded in them. Verify each finding against current code. Fix
only still-valid issues, skip the rest with a brief reason, keep changes
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Inline comments:
Review comments at @apps/web/components/nav/site-header.tsx:
- Line 58: Update the `onAuthPage` check so `/login` retains its existing
`isActive` behavior and auth paths are detected by the `/auth/` prefix, not
exact `/auth` matching; this keeps the sign-in link hidden consistently during
server rendering and hydration.
---
Nitpick comments:
Review comments at @apps/web/components/nav/site-header.test.tsx:
- Around line 17-22: site-header.test.tsx only tests headerPlace, so it would
not catch a startsWith regression in SiteHeader. Add a render test for
SiteHeader with usePathname returning /loginlog-in, and assert that the Sign in
link appears; leave the existing headerPlace tests intact.
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Reviewing files that changed from the base of the PR and between b01b0f5 and f4f623a.
Files selected for processing: 4
apps/web/components/nav/site-header.test.tsx
apps/web/components/nav/site-header.tsx
apps/web/lib/changelog.ts
apps/web/package.json
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…ails hydration
The 404 page is prerendered as /_not-found, so any path check in the
header (sign-in link, active nav link) could differ in the browser for
a missing URL under a real prefix such as /login/foo or /auth/foo.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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What
The 404 page is prerendered once, as
/_not-found, but the site header chose the sign-in link (and the active nav link) from the browser's path withstartsWithchecks. On a missing URL such as/loginlog-in,/login/fooor/auth/foothe browser hid the sign-in link that the prerendered HTML has, and React threw a hydration mismatch (#418).StatOSS showed this as a browser issue on a 404 for a malformed login URL; it reproduces in a clean browser on production.
Change
SiteHeadertakesnotFound, whichapp/not-found.tsxpasses: the header then reads no path at all, so the prerendered HTML and the browser always agree on the 404 page.headerPlace()matches whole path segments (/login,/auth/...,/dashboard,/account,/teams), so a page that only starts with those letters is not taken for one. Real pages behave as before;/authitself (a 404) is not an auth page.Testing
pnpm testinapps/web: all unit tests pass; ESLint andtscclean/loginlog-in,/login/fooand/auth/foorender the 404 without chore(deps): bump @supabase/supabase-js from 2.116.0 to 2.117.2 #418, while production (without this change) still throws chore(deps): bump @supabase/supabase-js from 2.116.0 to 2.117.2 #418 on/login/foo/auth) fixed; a fresh subagent review found the/login/foocase, fixed bynotFound🤖 Generated with Claude Code