refactor(router-core): skip URL constructor in buildLocation #6447
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📝 WalkthroughWalkthroughThe PR replaces propagated URL objects with a string-based Changes
Sequence Diagram(s)sequenceDiagram
autonumber
participant Client
participant LinkComponent
participant RouterCore
participant RouterHistory
participant BrowserHistory
Client->>LinkComponent: render / click <to>
LinkComponent->>RouterCore: call next() -> maskedLocation ?? next()
RouterCore->>RouterCore: derive publicHref, href, external
alt external === true
LinkComponent->>Client: return { href: publicHref, external: true }
else
LinkComponent->>RouterHistory: router.history.createHref(publicHref)
RouterHistory->>LinkComponent: created href (path)
LinkComponent->>BrowserHistory: navigation (push/replace href)
BrowserHistory->>RouterCore: commit location (payload uses publicHref)
end
Estimated code review effort🎯 3 (Moderate) | ⏱️ ~25 minutes Possibly related PRs
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Sheraff
commented
Jan 21, 2026
Sheraff
commented
Jan 21, 2026
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Actionable comments posted: 4
🤖 Fix all issues with AI agents
In `@packages/react-router/src/link.tsx`:
- Around line 131-149: The code currently treats full publicHref values as
internal by returning { href: publicHref, external: false }; update the handler
in link.tsx (the block that computes publicHref and isFullUrl) to mark full-URL
publicHref values as external (set external: true) so the Link component does
not intercept clicks for cross-origin rewrites; keep href as publicHref for
those cases and leave the router.history.createHref branch unchanged for
origin-stripped paths.
In `@packages/router-core/src/router.ts`:
- Around line 2646-2649: getParsedLocationHref currently returns an
origin-stripped location.href which loses cross-origin rewrite targets; change
getParsedLocationHref (used by resolveRedirect) to prefer the full URL (e.g.,
location.publicHref or location.url.href) and only strip the origin when it
exactly matches this.origin so same-origin behavior is preserved while
cross-origin redirects retain their full href; update any callers (notably
resolveRedirect) to use the new logic to emit full cross-origin URLs and keep
the existing same-origin stripping behavior.
In `@packages/solid-router/src/link.tsx`:
- Around line 140-158: The code treats full publicHref values as internal;
change the branch that detects full URLs (the isFullUrl check using
publicHref.startsWith('http://')/('https://')) to mark them external by
returning { href: publicHref, external: true } so SPA interception is disabled
for cross-origin rewrites; keep the other branch using
router.history.createHref(publicHref) for non-full paths.
In `@packages/vue-router/src/link.tsx`:
- Around line 474-493: The computed publicHref can be an absolute URL even for
an internal options.to, which risks client-side navigation attempting a
cross-origin push; update the href resolution and click handling so that when
publicHref is detected as a full URL (the logic in the block using
nextLocation?.maskedLocation ?? nextLocation and const publicHref =
location?.publicHref), you treat it as external: return the full publicHref and
signal/mark it as external (or short-circuit handleClick) so that handleClick
(the component's click handler that currently calls
router.navigate/router.history.createHref) does not attempt router.navigate or a
client-side push for that link; concretely, keep the isFullUrl detection, ensure
the resolver returns the absolute URL and modify handleClick to check the same
isFullUrl condition (or an external flag set alongside createHref) and fall back
to native navigation instead of calling router.navigate.
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Actionable comments posted: 1
🤖 Fix all issues with AI agents
In `@packages/router-core/src/router.ts`:
- Around line 1885-1912: The internal href must be derived from fullPath before
running executeRewriteOutput to avoid in-place mutation of the URL changing our
internal path; change the block where this.rewrite is handled so href = fullPath
(or otherwise capture the origin-stripped path) before calling
executeRewriteOutput(this.rewrite, url), then compute publicHref from
rewrittenUrl (using rewrittenUrl.href when origins differ, or
rewrittenUrl.pathname+search+hash when same) so publicHref reflects the rewrite
while href remains the original internal path used by isSameUrl and redirects.
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Actionable comments posted: 0
Caution
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⚠️ Outside diff range comments (1)
packages/router-core/src/router.ts (1)
2218-2226: Guard against cross‑origin rewrites during imperative navigation.
buildLocationnow marksexternalwhen rewrite output changes origin.navigate({ to })still proceeds with client-side commit and may hit apushStatecross-origin error. Consider forcingreloadDocumentwhenlocation.externaland usingpublicHref.🛠️ Suggested fix
navigate: NavigateFn = async ({ to, reloadDocument, href, publicHref, ...rest }) => { let hrefIsUrl = false if (href) { try { new URL(`${href}`) hrefIsUrl = true } catch {} } if (hrefIsUrl && !reloadDocument) { reloadDocument = true } + + let resolvedLocation: ParsedLocation | undefined + if (!reloadDocument && (to !== undefined || !href)) { + resolvedLocation = this.buildLocation({ to, ...rest } as any) + if (resolvedLocation.external) { + reloadDocument = true + href = href ?? resolvedLocation.publicHref + publicHref = publicHref ?? resolvedLocation.publicHref + } + } if (reloadDocument) { // When to is provided, always build a location to get the proper publicHref // (this handles redirects where href might be an internal path from resolveRedirect) // When only href is provided (no to), use it directly as it should already // be a complete path (possibly with basepath) if (to !== undefined || !href) { - const location = this.buildLocation({ to, ...rest } as any) + const location = resolvedLocation ?? this.buildLocation({ to, ...rest } as any) // Use publicHref which contains the path (origin-stripped is fine for reload) href = href ?? location.publicHref publicHref = publicHref ?? location.publicHref }
♻️ Duplicate comments (1)
packages/router-core/src/router.ts (1)
1886-1910: Keep internalhrefstable when rewrite output mutates the URL.
executeRewriteOutputcan mutateurlin-place; usingurl.hrefafter rewrite can turn the internalhrefinto the public path and breakisSameUrlcomparisons. Prefer the pre‑rewritefullPathforhref.🛠️ Suggested fix
if (this.rewrite) { // With rewrite, we need to construct URL to apply the rewrite const url = new URL(fullPath, this.origin) const rewrittenUrl = executeRewriteOutput(this.rewrite, url) - href = url.href.replace(url.origin, '') + // Keep internal href stable even if rewrite.output mutates `url` + href = fullPath // If rewrite changed the origin, publicHref needs full URL // Otherwise just use the path components if (rewrittenUrl.origin !== this.origin) { publicHref = rewrittenUrl.href external = trueAlso applies to: 1912-1921
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Summary by CodeRabbit
Refactor
Tests
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