fix: restore sitemap prerender and add localhost fallback

The build failed with the previous approach. Restore prerendering
for sitemap.xml and use localhost detection to fall back to the
canonical nuxt.com hostname during build.

Author: HugoRCD

nuxt.config.ts

@@ -119,6 +119,7 @@ export default defineNuxtConfig({
     // Pre-render
     '/': { prerender: true },
     '/blog/rss.xml': { prerender: true },
+    '/sitemap.xml': { prerender: true },
     '/sitemap.md': { prerender: true },
     '/404.html': { prerender: true },
     '/docs/3.x/getting-started/introduction': { prerender: true },

package.json

@@ -53,6 +53,7 @@
     "drizzle-orm": "^0.45.1",
     "feed": "^5.2.0",
     "h3": "^1.15.6",
+    "html2canvas-pro": "^2.0.2",
     "little-date": "^1.2.1",
     "motion-v": "^1.10.3",
     "nuxt": "^4.4.2",

pnpm-lock.yaml

@@ -5,7 +5,7 @@ import { queryCollection } from '#imports'
 
 type queryCollectionWithEvent = <T extends keyof Collections>(event: H3Event, collection: T) => CollectionQueryBuilder<Collections[T]>
 
-export default defineCachedEventHandler(async (event: H3Event) => {
+export default defineEventHandler(async (event: H3Event) => {
   // TODO: add docsv5 to sitemap when Nuxt 5 is released
   const [docs, blog] = await Promise.all([
     (queryCollection as queryCollectionWithEvent)(event, 'docsv4')
@@ -19,7 +19,7 @@ export default defineCachedEventHandler(async (event: H3Event) => {
   const now = new Date().toISOString()
 
   const reqUrl = getRequestURL(event)
-  const hostname = reqUrl.origin
+  const hostname = reqUrl.origin.includes('localhost') ? 'https://nuxt.com' : reqUrl.origin
 
   const sitemap = new SitemapStream({ hostname })
   for (const doc of docs) {
@@ -38,8 +38,4 @@ export default defineCachedEventHandler(async (event: H3Event) => {
   }
   sitemap.end()
   return streamToPromise(sitemap)
-}, {
-  name: 'sitemap-xml',
-  swr: true,
-  maxAge: 60 * 60
 })