fix: passing headers

middlewares/cmsContent.ts

@@ -1,3 +1,4 @@
+import { headers } from "next/headers"
 import { NextResponse } from "next/server"
 
 import { findLang } from "@/constants/languages"
@@ -5,13 +6,15 @@ import { notFound } from "@/server/errors/next"
 
 import { resolve as resolveEntry } from "@/utils/entry"
 
+import { getDefaultRequestHeaders } from "./utils"
+
 import type { NextMiddleware } from "next/server"
 
 import { MiddlewareMatcher } from "@/types/middleware"
 
 export const middleware: NextMiddleware = async (request) => {
   const { nextUrl } = request
-  const lang = findLang(nextUrl.pathname)
+  const lang = findLang(nextUrl.pathname)!
 
   const pathNameWithoutLang = nextUrl.pathname.replace(`/${lang}`, "")
   const searchParams = new URLSearchParams(request.nextUrl.searchParams)
@@ -24,6 +27,9 @@ export const middleware: NextMiddleware = async (request) => {
     )
   }
 
+  const headers = getDefaultRequestHeaders(request)
+  headers.set("x-uid", uid)
+
   const isCurrent = contentType ? contentType.indexOf("current") >= 0 : false
 
   if (request.nextUrl.pathname.includes("/preview")) {
@@ -41,9 +47,7 @@ export const middleware: NextMiddleware = async (request) => {
       ),
       {
         request: {
-          headers: new Headers({
-            "x-uid": uid,
-          }),
+          headers,
         },
       }
     )
@@ -65,9 +69,7 @@ export const middleware: NextMiddleware = async (request) => {
     ),
     {
       request: {
-        headers: new Headers({
-          "x-uid": uid,
-        }),
+        headers,
       },
     }
   )