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Title & meta

Since Inertia powered JavaScript apps are rendered within the document <body>, they are unable to render markup to the document <head>, as it's outside of their scope. To help with this, Inertia ships with a <Head> component which can be used to set the page <title>, <meta> tags, and other <head> elements.

The <Head> component will only replace <head> elements that are not in your server-side root template.
The <Head> component is not available in the Svelte adapter, as Svelte already ships with its own <svelte:head> component.

Head component

To add <head> elements to your page, use the <Head> component. Within this component, you can include the elements that you wish to add to the document <head>.

import { Head } from '@inertiajs/vue3'

<Head>
  <title>Your page title</title>
  <meta name="description" content="Your page description">
</Head>

Title shorthand

If you only need to add a <title> to the document <head>, you may simply pass the title as a prop to the <Head> component.

import { Head } from '@inertiajs/vue3'

<Head title="Your page title" />

Title callback

You can globally modify the page <title> using the title callback in the createInertiaApp setup method. Typically, this method is invoked in your application's main JavaScript file. A common use case for the title callback is automatically adding an app name before or after each page title.

createInertiaApp({
  title: title => `${title} - My App`,
  // ...
})

After defining the title callback, the callback will automatically be invoked when you set a title using the <Head> component.

import { Head } from '@inertiajs/vue3'

<Head title="Home">

Which, in this example, will result in the following <title> tag.

<title>Home - My App</title>

The title callback will also be invoked when you set the title using a <title> tag within your <Head> component.

import { Head } from '@inertiajs/vue3'

<Head>
  <title>Home</title>
</Head>

Multiple Head instances

It's possible to have multiple instances of the <Head> component throughout your application. For example, your layout can set some default <Head> elements, and then your individual pages can override those defaults.

// Layout.vue

import { Head } from '@inertiajs/vue3'

<Head>
  <title>My app</title>
  <meta head-key="description" name="description" content="This is the default description" />
  <link rel="icon" type="image/svg+xml" href="/favicon.svg" />
</Head>

// About.vue

import { Head } from '@inertiajs/vue3'

<Head>
  <title>About - My app</title>
  <meta head-key="description" name="description" content="This is a page specific description" />
</Head>

Inertia will only ever render one <title> tag; however, all other tags will be stacked since it's valid to have multiple instances of them. To avoid duplicate tags in your <head>, you can use the head-key property, which will make sure the tag is only rendered once. This is illustrated in the example above for the <meta name="description"> tag.

The code example above will render the following HTML.

<head>
  <link rel="icon" type="image/svg+xml" href="/favicon.svg" />
  <title>About - My app</title>
  <meta name="description" content="This is a page specific description" />
</head>

Head extension

When building a real application, it can sometimes be helpful to create a custom head component that extends Inertia's <Head> component. This gives you a place to set app-wide defaults, such as appending the app name to the page title.

<!-- AppHead.vue -->

<script setup>
import { Head } from '@inertiajs/vue3'

defineProps({ title: String })
</script>

<template>
  <Head :title="title ? `${title} - My App` : 'My App'">
    <slot />
  </Head>
</template>

Once you have created the custom component, you can just start using it in your pages.

import AppHead from './AppHead'

<AppHead title="About" />

Inertia attribute on elements

Inertia has historically used the inertia attribute to track and manage elements in the document <head>. However, you can now opt-in to using the more standards-compliant data-inertia attribute instead. According to the HTML specification, custom attributes should be prefixed with data- to avoid conflicts with future HTML standards.

To enable this, configure the future.useDataInertiaHeadAttribute option in your application defaults.

createInertiaApp({
  // resolve, setup, etc.
  defaults: {
    future: {
      useDataInertiaHeadAttribute: true,
    },
  },
})