fix(nuxt): avoid vue-router warning with routeRule redirect (#25391)

packages/nuxt/src/pages/module.ts

@@ -1,6 +1,6 @@
 import { existsSync, readdirSync } from 'node:fs'
 import { mkdir, readFile } from 'node:fs/promises'
-import { addBuildPlugin, addComponent, addPlugin, addTemplate, addVitePlugin, addWebpackPlugin, defineNuxtModule, findPath, logger, updateTemplates } from '@nuxt/kit'
+import { addBuildPlugin, addComponent, addPlugin, addTemplate, addVitePlugin, addWebpackPlugin, defineNuxtModule, findPath, logger, updateTemplates, useNitro } from '@nuxt/kit'
 import { dirname, join, relative, resolve } from 'pathe'
 import { genImport, genObjectFromRawEntries, genString } from 'knitwork'
 import { joinURL } from 'ufo'
@@ -337,6 +337,22 @@ export default defineNuxtModule({
       })
     }
 
+    if (nuxt.options.experimental.appManifest) {
+      // Add all redirect paths as valid routes to router; we will handle these in a client-side middleware
+      // when the app manifest is enabled.
+      nuxt.hook('pages:extend', routes => {
+        const nitro = useNitro()
+        for (const path in nitro.options.routeRules) {
+          const rule = nitro.options.routeRules[path]
+          if (!rule.redirect) { continue }
+          routes.push({
+            path: path.replace(/\/[^/]*\*\*/, '/:pathMatch(.*)'),
+            file: resolve(runtimeDir, 'component-stub'),
+          })
+        }
+      })
+    }
+
     // Extract macros from pages
     const pageMetaOptions: PageMetaPluginOptions = {
       dev: nuxt.options.dev,

packages/nuxt/src/pages/runtime/component-stub.ts

@@ -0,0 +1 @@
+export default {}