fix(nuxt): give priority to later middleware when deduping (#23552)

packages/nuxt/src/core/app.ts

@@ -152,7 +152,7 @@ export async function resolveApp (nuxt: Nuxt, app: NuxtApp) {
   }
 
   // Normalize and de-duplicate plugins and middleware
-  app.middleware = uniqueBy(await resolvePaths(app.middleware, 'path'), 'name')
+  app.middleware = uniqueBy(await resolvePaths([...app.middleware].reverse(), 'path'), 'name').reverse()
   app.plugins = uniqueBy(await resolvePaths(app.plugins, 'src'), 'src')
 
   // Resolve app.config

packages/nuxt/test/app.test.ts

@@ -141,9 +141,9 @@ describe('resolveApp', () => {
     // TODO: fix this
     expect(fixtureMiddleware).toMatchInlineSnapshot(`
       [
-        "<rootDir>/layer1/middleware/global.global.ts",
-        "<rootDir>/layer1/middleware/named-from-layer.ts",
-        "<rootDir>/layer1/middleware/named-override.ts",
+        "<rootDir>/layer2/middleware/global.global.ts",
+        "<rootDir>/layer2/middleware/named-from-layer.ts",
+        "<rootDir>/middleware/named-override.ts",
         "<rootDir>/middleware/named.ts",
       ]
     `)

test/basic.test.ts

@@ -1019,8 +1019,7 @@ describe('extends support', () => {
       expect(html).toContain('Middleware | foo: Injected by extended middleware from foo')
     })
 
-    // theme is added after layers
-    it('extends foo/middleware/override over bar/middleware/override', async () => {
+    it('extends bar/middleware/override over foo/middleware/override', async () => {
       const html = await $fetch('/override')
       expect(html).toContain('Middleware | override: Injected by extended middleware from bar')
     })

test/fixtures/basic/extends/bar/middleware/override.ts

@@ -1,3 +1,3 @@
 export default defineNuxtRouteMiddleware((to) => {
-  to.meta.override = 'This middleware should be overridden by bar'
+  to.meta.override = 'Injected by extended middleware from bar'
 })

test/fixtures/basic/extends/node_modules/foo/middleware/override.ts

@@ -1,3 +1,3 @@
 export default defineNuxtRouteMiddleware((to) => {
-  to.meta.override = 'Injected by extended middleware from bar'
+  to.meta.override = 'This middleware should be overriden by bar'
 })