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[v16.2+] Router state header was sent but could not be parsed on soft navigation with dynamic rendering

CookiesRelated to the async cookies() function.Related to the async cookies() function.

HeadersRelated to the async headers() function.Related to the async headers() function.

linear: nextConfirmed issue that is tracked by the Next.js team.Confirmed issue that is tracked by the Next.js team.

Linking and NavigatingRelated to Next.js linking (e.g., <Link>) and navigation.Related to Next.js linking (e.g., <Link>) and navigation.

Status: Open.

Bug

#92907 In vercel/next.js;

· abdonrd opened on Apr 16, 2026

Allow dynamic APIs (cookies(), headers()) inside "use cache" when Draft Mode is enabled

Cache ComponentsRelated to the `cacheComponents`, `useCache`, or `ppr` experimental flags.Related to the `cacheComponents`, `useCache`, or `ppr` experimental flags.

CookiesRelated to the async cookies() function.Related to the async cookies() function.

Draft ModeRelated to Draft Mode.Related to Draft Mode.

HeadersRelated to the async headers() function.Related to the async headers() function.

linear: nextConfirmed issue that is tracked by the Next.js team.Confirmed issue that is tracked by the Next.js team.

Status: Open.

Bug

#87742 In vercel/next.js;

· angeloashmore opened on Dec 24, 2025

RSC Error with cookies() in layout.tsx when using basePath in Next.js 16

CookiesRelated to the async cookies() function.Related to the async cookies() function.

Dynamic RoutesRelated to dynamic routes.Related to dynamic routes.

Status: Open.

Bug

#86284 In vercel/next.js;

· Heet-Bhalodiya opened on Nov 19, 2025

Throw an error if cookie max length is exceeded

CookiesRelated to the async cookies() function.Related to the async cookies() function.

Status: Open.

Bug

#85008 In vercel/next.js;

· tomaspiaggio opened on Oct 17, 2025

App Router: "force-dynamic" pages still render from cache when server actions set cookies after layout has mounted

CookiesRelated to the async cookies() function.Related to the async cookies() function.

linear: nextConfirmed issue that is tracked by the Next.js team.Confirmed issue that is tracked by the Next.js team.

Server ActionsRelated to Server Actions.Related to Server Actions.

Status: Open.

Bug

#83034 In vercel/next.js;

· kcd71461 opened on Aug 26, 2025

Unexpected middleware/cookies() behavior

CookiesRelated to the async cookies() function.Related to the async cookies() function.

Status: Open.

Bug

#82952 In vercel/next.js;

· thejm-12 opened on Aug 22, 2025

Set-Cookie header duplicated when setting cookie maxAge in middleware and redirecting from a Server Component

CookiesRelated to the async cookies() function.Related to the async cookies() function.

HeadersRelated to the async headers() function.Related to the async headers() function.

MiddlewareRelated to Next.js Middleware.Related to Next.js Middleware.

RedirectsRelated to redirecting.Related to redirecting.

Status: Open.

Bug

#77637 In vercel/next.js;

· reh2ur opened on Mar 31, 2025

Cookies in header() are differently encoded in server action and server request.

CookiesRelated to the async cookies() function.Related to the async cookies() function.

HeadersRelated to the async headers() function.Related to the async headers() function.

Server ActionsRelated to Server Actions.Related to Server Actions.

Status: Open.

Bug

#77022 In vercel/next.js;

· yongholeeme opened on Mar 12, 2025

Cookie header encoding

CookiesRelated to the async cookies() function.Related to the async cookies() function.

Status: Open.

Bug

#76794 In vercel/next.js;

· r34son opened on Mar 4, 2025

Setting Cookies Via Server Action Reloads Entire App

CookiesRelated to the async cookies() function.Related to the async cookies() function.

Server ActionsRelated to Server Actions.Related to Server Actions.

Status: Open.

Bug

#50163 In vercel/next.js;

· johnson-jesse opened on May 22, 2023