Strip next-resume header from incoming requests (#93)

gnoff · eps1lon · commit 73de04589560 · 2026-05-06T18:32:05.000+02:00
This header is used by proxies to perform a concatenating resume render for partial prerendering. It is never sent from the client so we can filter it out when running in a mode that does not have an intermediate proxy.
diff --git a/packages/next/src/server/lib/server-ipc/utils.ts b/packages/next/src/server/lib/server-ipc/utils.ts
@@ -50,6 +50,7 @@ const INTERNAL_HEADERS = [
   'x-matched-path',
   'x-nextjs-data',
   'x-next-resume-state-length',
+  'next-resume',
 ]
 
 export const filterInternalHeaders = (

Original file line number	Diff line number	Diff line change
`@@ -50,6 +50,7 @@ const INTERNAL_HEADERS = [`
`50`	`50`	`'x-matched-path',`
`51`	`51`	`'x-nextjs-data',`
`52`	`52`	`'x-next-resume-state-length',`
	`53`	`+ 'next-resume',`
`53`	`54`	`]`
`54`	`55`
`55`	`56`	`export const filterInternalHeaders = (`