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src/plugins/cache-headers.ts

@@ -0,0 +1,23 @@
+import { definePlugin } from '/@src/utils/plugins'
+
+export default definePlugin(async ({ event, router }) => {
+  if (!event) return
+
+  const [getRequestURL, setResponseHeader] = await import('h3').then(m => [
+    m.getRequestURL,
+    m.setResponseHeader,
+  ] as const)
+
+  const url = getRequestURL(event)
+  if (!url?.pathname) return
+
+  const route = router.resolve(url.pathname)
+  if (!route) return
+
+  if (route.meta.requiresAuth) {
+    setResponseHeader(event, 'Cache-Control', 'private, max-age=3600, stale-while-revalidate=3600')
+  }
+  else {
+    setResponseHeader(event, 'Cache-Control', 'public, max-age=86400, stale-while-revalidate=604800')
+  }
+})