VUE0012Avoid random or local-time SSR render values

Why it happens

Server-rendered markup must match the first client render. Browser-only state, time, randomness, or hash-sensitive URLs can create hydration mismatches.

Fix

Remove random or local time render, or move it to the Vue runtime/API that owns that behavior.

Example

Avoid random render output

Before

<template>
  <span>{{ Math.random() }}</span>
</template>

After

<script setup lang="ts">
const id = useId()
</script>

<template>
  <span>{{ id }}</span>
</template>

Verify the fix

Run only this rule after editing so the report stays focused on the diagnostic you are closing:

pnpm vite-doctor . --framework vue --rules vue/ssr/no-random-or-local-time-render

Useful links

• Upstream docs

Related rule

• vue/ssr/no-random-or-local-time-render