fix(nuxt): separate routes for different suspense forks (#6275)

packages/nuxt/src/app/components/nuxt-root.vue

@@ -6,14 +6,17 @@
 </template>
 
 <script setup>
-import { defineAsyncComponent, onErrorCaptured } from 'vue'
-import { callWithNuxt, isNuxtError, showError, useError, useNuxtApp } from '#app'
+import { defineAsyncComponent, onErrorCaptured, provide } from 'vue'
+import { callWithNuxt, isNuxtError, showError, useError, useRoute, useNuxtApp } from '#app'
 
 const ErrorComponent = defineAsyncComponent(() => import('#build/error-component.mjs'))
 
 const nuxtApp = useNuxtApp()
 const onResolve = () => nuxtApp.callHook('app:suspense:resolve')
 
+// Inject default route (outside of pages) as active route
+provide('_route', useRoute())
+
 // vue:setup hook
 const results = nuxtApp.hooks.callHookWith(hooks => hooks.map(hook => hook()), 'vue:setup')
 if (process.dev && results && results.some(i => i && 'then' in i)) {

packages/nuxt/src/app/composables/router.ts

@@ -1,3 +1,4 @@
+import { getCurrentInstance, inject } from 'vue'
 import type { Router, RouteLocationNormalizedLoaded, NavigationGuard, RouteLocationNormalized, RouteLocationRaw, NavigationFailure } from 'vue-router'
 import { sendRedirect } from 'h3'
 import { joinURL } from 'ufo'
@@ -8,11 +9,15 @@ export const useRouter = () => {
 }
 
 export const useRoute = () => {
-  return useNuxtApp()._route as RouteLocationNormalizedLoaded
+  if (getCurrentInstance()) {
+    return inject<RouteLocationNormalizedLoaded>('_route', useNuxtApp()._route)
+  }
+  return useNuxtApp()._route
 }
 
+/** @deprecated Use `useRoute` instead. */
 export const useActiveRoute = () => {
-  return useNuxtApp()._activeRoute as RouteLocationNormalizedLoaded
+  return useNuxtApp()._route as RouteLocationNormalizedLoaded
 }
 
 export interface RouteMiddleware {

packages/nuxt/src/pages/runtime/page.ts

@@ -30,17 +30,28 @@ export default defineComponent({
 
     return () => {
       return h(RouterView, { name: props.name, route: props.route, ...attrs }, {
-        default: (routeProps: RouterViewSlotProps) => routeProps.Component &&
-            _wrapIf(Transition, routeProps.route.meta.pageTransition ?? defaultPageTransition,
-              wrapInKeepAlive(routeProps.route.meta.keepalive,
-                isNested && nuxtApp.isHydrating
+        default: (routeProps: RouterViewSlotProps) => {
+          if (!routeProps.Component) { return }
+
+          const Component = defineComponent({
+            setup () {
+              provide('_route', routeProps.route)
+              return () => h(routeProps.Component, {
+                key: generateRouteKey(props.pageKey, routeProps)
+              } as {})
+            }
+          })
+
+          return _wrapIf(Transition, routeProps.route.meta.pageTransition ?? defaultPageTransition,
+            wrapInKeepAlive(routeProps.route.meta.keepalive, isNested && nuxtApp.isHydrating
             // Include route children in parent suspense
-                  ? h(routeProps.Component, { key: generateRouteKey(props.pageKey, routeProps) } as {})
+              ? h(Component)
               : h(Suspense, {
                 onPending: () => nuxtApp.callHook('page:start', routeProps.Component),
                 onResolve: () => nuxtApp.callHook('page:finish', routeProps.Component)
-                  }, { default: () => h(routeProps.Component, { key: generateRouteKey(props.pageKey, routeProps) } as {}) })
+              }, { default: () => h(Component) })
             )).default()
+        }
       })
     }
   }

packages/nuxt/src/pages/runtime/router.ts

@@ -76,15 +76,9 @@ export default defineNuxtPlugin(async (nuxtApp) => {
     get: () => previousRoute.value
   })
 
-  // https://github.com/vuejs/vue-router-next/blob/master/src/router.ts#L1192-L1200
-  const route = {}
-  for (const key in router.currentRoute.value) {
-    route[key] = computed(() => router.currentRoute.value[key])
-  }
-
   // Allows suspending the route object until page navigation completes
-  const _activeRoute = shallowRef(router.resolve(initialURL) as RouteLocation)
-  const syncCurrentRoute = () => { _activeRoute.value = router.currentRoute.value }
+  const _route = shallowRef(router.resolve(initialURL) as RouteLocation)
+  const syncCurrentRoute = () => { _route.value = router.currentRoute.value }
   nuxtApp.hook('page:finish', syncCurrentRoute)
   router.afterEach((to, from) => {
     // We won't trigger suspense if the component is reused between routes
@@ -93,14 +87,14 @@ export default defineNuxtPlugin(async (nuxtApp) => {
       syncCurrentRoute()
     }
   })
-  // https://github.com/vuejs/vue-router-next/blob/master/src/router.ts#L1192-L1200
-  const activeRoute = {}
-  for (const key in _activeRoute.value) {
-    activeRoute[key] = computed(() => _activeRoute.value[key])
+
+  // https://github.com/vuejs/router/blob/main/packages/router/src/router.ts#L1225-L1233
+  const route = {}
+  for (const key in _route.value) {
+    route[key] = computed(() => _route.value[key])
   }
 
   nuxtApp._route = reactive(route)
-  nuxtApp._activeRoute = reactive(activeRoute)
 
   nuxtApp._middleware = nuxtApp._middleware || {
     global: [],