fix(nuxt): catch chunk errors directly in navigation

packages/nuxt/src/app/nuxt.ts

@@ -375,7 +375,9 @@ export function createNuxtApp (options: CreateOptions) {
     if (chunkErrorEvent) {
       window.addEventListener(chunkErrorEvent, (event) => {
         nuxtApp.callHook('app:chunkError', { error: (event as Event & { payload: Error }).payload })
+        if (nuxtApp.isHydrating || event.payload.message.includes('Unable to preload CSS')) {
           event.preventDefault()
+        }
       })
     }
     window.useNuxtApp = window.useNuxtApp || useNuxtApp

packages/nuxt/src/app/plugins/chunk-reload.client.ts

@@ -10,7 +10,7 @@ export default defineNuxtPlugin({
     const router = useRouter()
     const config = useRuntimeConfig()
 
-    const chunkErrors = new Set()
+    const chunkErrors = new Set<Error>()
 
     router.beforeEach(() => { chunkErrors.clear() })
     nuxtApp.hook('app:chunkError', ({ error }) => { chunkErrors.add(error) })
@@ -26,7 +26,7 @@ export default defineNuxtPlugin({
     })
 
     router.onError((error, to) => {
-      if (chunkErrors.has(error) || error.message.includes('Failed to fetch dynamically imported module')) {
+      if (chunkErrors.has(error)) {
         reloadAppAtPath(to)
       }
     })

test/basic.test.ts

@@ -1165,16 +1165,29 @@ describe('errors', () => {
 
   // TODO: need to create test for webpack
   it.runIf(!isDev())('should handle chunk loading errors', async () => {
-    const { page, consoleLogs } = await renderPage('/')
+    const { page, consoleLogs } = await renderPage()
+    await page.route(/\.css/, route => route.abort('timedout')) // verify CSS link preload failure doesn't break the page
+    await page.goto(url('/'))
+    await page.waitForFunction(() => window.useNuxtApp?.()._route.fullPath === '/' && !window.useNuxtApp?.().isHydrating)
+
+    const initialLogs = consoleLogs.map(c => c.text).join('')
+    expect(initialLogs).toContain('caught chunk load error')
+    consoleLogs.length = 0
+
     await page.getByText('Increment state').click()
     await page.getByText('Increment state').click()
     expect(await page.innerText('div')).toContain('Some value: 3')
     await page.route(/.*/, route => route.abort('timedout'), { times: 1 })
     await page.getByText('Chunk error').click()
+
     await page.waitForURL(url('/chunk-error'))
-    expect(consoleLogs.map(c => c.text).join('')).toContain('Failed to load resource')
+
-    expect(await page.innerText('div')).toContain('Chunk error page')
+    const logs = consoleLogs.map(c => c.text).join('')
+    expect(logs).toContain('caught chunk load error')
+    expect(logs).toContain('Failed to load resource')
+
     await page.waitForFunction(() => window.useNuxtApp?.()._route.fullPath === '/chunk-error')
+    expect(await page.innerText('div')).toContain('Chunk error page')
     await page.locator('div').getByText('State: 3').waitFor()
 
     await page.close()

test/fixtures/basic/plugins/chunk-error.ts

@@ -0,0 +1,5 @@
+export default defineNuxtPlugin((nuxtApp) => {
+  nuxtApp.hook('app:chunkError', () => {
+    console.log('caught chunk load error')
+  })
+})