vueuse-best-practices

To fix VueUse SSR hydration issues, guard browser API access using onMounted and isClient checks to ensure server-side rendering executes no client-only logic. This prevents hydration mismatches by verifying hydration parity between server and client output.

The best way to access the window object safely is wrapping browser API calls in onMounted or isClient conditionals to restrict execution to the client. This SSR-safe pattern prevents server rendering errors and DOM access pitfalls.

To ensure type-safe composition with VueUse template refs, use MaybeElementRef to guarantee predictable behavior across client and server environments. This approach enforces type safety and prevents inconsistent type inference during SSR.

VueUse works with Nuxt and Vite by applying SSR-safe patterns and leveraging built-in SSR-safe utilities for server-side rendered applications. You must validate SSR safety by simulating server rendering and verifying hydration parity.

Your Vue 3 composable fails during server rendering because browser-only APIs are executing outside the client environment. Apply isClient checks and client-only rendering patterns to ensure no browser APIs run during server rendering.