# `vue`

## `config`

### `silent`
- **Type**: `boolean`
- **Default**: `true`


### `performance`
- **Type**: `any`
- **Default**: `{}`


# `app`

## `baseURL`
- **Type**: `string`
- **Default**: `"/"`

> The base path of your Nuxt application.


This can be set at runtime by setting the NUXT_APP_BASE_URL environment variable.


## `buildAssetsDir`
- **Type**: `string`
- **Default**: `"/_nuxt/"`

> The folder name for the built site assets, relative to `baseURL` (or `cdnURL` if set). This is set at build time and should not be customized at runtime.


## `cdnURL`
- **Type**: `string`
- **Default**: `""`

> An absolute URL to serve the public folder from (production-only).


For example:


## `assetsPath`
- **Type**: `any`
- **Default**: `{}`

> The folder name for the built site assets, relative to `baseURL` (or `cdnURL` if set).


## `head`

# `appTemplatePath`
- **Type**: `string`
- **Default**: `"/home/runner/work/bridge/bridge/packages/bridge-schema/views/app.template.html"`

> The path to an HTML template file for rendering Nuxt responses. Uses `<srcDir>/app.html` if it exists, or the Nuxt's default template if not.


# `store`
- **Type**: `boolean`
- **Default**: `false`

> Enable or disable Vuex store.


By default, it is enabled if there is a `store/` directory.


# `vueMeta`
- **Type**: `VueMetaVueMetaOptions`
- **Default**: `null`

> Options to pass directly to `vue-meta`.


# `head`

## `meta`
- **Type**: `array`
- **Default**: `[]`

> Each item in the array maps to a newly-created `<meta>` element, where object properties map to attributes.


## `link`
- **Type**: `array`
- **Default**: `[]`

> Each item in the array maps to a newly-created `<link>` element, where object properties map to attributes.


## `style`
- **Type**: `array`
- **Default**: `[]`

> Each item in the array maps to a newly-created `<style>` element, where object properties map to attributes.


## `script`
- **Type**: `array`
- **Default**: `[]`

> Each item in the array maps to a newly-created `<script>` element, where object properties map to attributes.


# `meta`

## `meta`
- **Type**: `array`
- **Default**: `[]`


## `link`
- **Type**: `array`
- **Default**: `[]`


## `style`
- **Type**: `array`
- **Default**: `[]`


## `script`
- **Type**: `array`
- **Default**: `[]`


# `fetch`

## `server`
- **Type**: `boolean`
- **Default**: `true`

> Whether to enable `fetch()` on the server.


## `client`
- **Type**: `boolean`
- **Default**: `true`

> Whether to enable `fetch()` on the client.


# `extendPlugins`
- **Type**: `(plugins: Array<{ src: string, mode?: 'client' | 'server' }>) => Array<{ src: string, mode?: 'client' | 'server' }>`
- **Default**: `null`

> You may want to extend plugins or change their order. For this, you can pass a function using `extendPlugins`. It accepts an array of plugin objects and should return an array of plugin objects.


# `layouts`
- **Type**: `Record<string, string>`
- **Default**: `{}`

> An object where each key name maps to a path to a layout .vue file.


Normally, there is no need to configure this directly.


# `ErrorPage`
- **Type**: `string`
- **Default**: `null`

> Set a custom error page layout.


Normally, there is no need to configure this directly.


# `loading`

# `loadingIndicator`

# `pageTransition`

# `layoutTransition`

# `features`

## `store`
- **Type**: `boolean`
- **Default**: `true`

> Set to false to disable Nuxt vuex integration


## `layouts`
- **Type**: `boolean`
- **Default**: `true`

> Set to false to disable layouts


## `meta`
- **Type**: `boolean`
- **Default**: `true`

> Set to false to disable Nuxt integration with `vue-meta` and the `head` property


## `middleware`
- **Type**: `boolean`
- **Default**: `true`

> Set to false to disable middleware


## `transitions`
- **Type**: `boolean`
- **Default**: `true`

> Set to false to disable transitions


## `deprecations`
- **Type**: `boolean`
- **Default**: `true`

> Set to false to disable support for deprecated features and aliases


## `validate`
- **Type**: `boolean`
- **Default**: `true`

> Set to false to disable the Nuxt `validate()` hook


## `useAsyncData`
- **Type**: `boolean`
- **Default**: `true`

> Set to false to disable the Nuxt `asyncData()` hook


## `fetch`
- **Type**: `boolean`
- **Default**: `true`

> Set to false to disable the Nuxt `fetch()` hook


## `clientOnline`
- **Type**: `boolean`
- **Default**: `true`

> Set to false to disable `$nuxt.isOnline`


## `clientPrefetch`
- **Type**: `boolean`
- **Default**: `true`

> Set to false to disable prefetching behavior in `<NuxtLink>`


## `componentAliases`
- **Type**: `boolean`
- **Default**: `true`

> Set to false to disable extra component aliases like `<NLink>` and `<NChild>`


## `componentClientOnly`
- **Type**: `boolean`
- **Default**: `true`

> Set to false to disable the `<ClientOnly>` component (see [docs](https://github.com/egoist/vue-client-only))


# `build`

## `quiet`
- **Type**: `boolean`
- **Default**: `true`

> Suppresses most of the build output log.


It is enabled by default when a CI or test environment is detected.


## `analyze`
- **Type**: `boolean | WebpackBundleAnalyzerBundleAnalyzerPluginOptions | RollupPluginVisualizerPluginVisualizerOptions`
- **Default**: `false`

> Nuxt uses `webpack-bundle-analyzer` to visualize your bundles and how to optimize them.


Set to `true` to enable bundle analysis, or pass an object with options: [for webpack](https://github.com/webpack-contrib/webpack-bundle-analyzer#options-for-plugin) or [for vite](https://github.com/btd/rollup-plugin-visualizer#options).


## `profile`
- **Type**: `boolean`
- **Default**: `false`

> Enable the profiler in webpackbar.


It is normally enabled by CLI argument `--profile`.


## `extractCSS`
- **Type**: `boolean | ExtractCssChunksWebpackPluginPluginOptions`
- **Default**: `false`

> Enables Common CSS Extraction using [Vue Server Renderer guidelines](https://v2.ssr.vuejs.org/guide/css.html).


Using [extract-css-chunks-webpack-plugin](https://github.com/faceyspacey/extract-css-chunks-webpack-plugin/) under the hood, your CSS will be extracted into separate files, usually one per component. This allows caching your CSS and JavaScript separately and is worth trying if you have a lot of global or shared CSS.


## `cssSourceMap`
- **Type**: `any`
- **Default**: `{}`

> Enables CSS source map support (defaults to true in development)


## `ssr`
- **Type**: `any`
- **Default**: `{}`

> Creates special webpack bundle for SSR renderer. It is normally not necessary to change this value.


## `parallel`
- **Type**: `boolean`
- **Default**: `false`

> Enable [thread-loader](https://github.com/webpack-contrib/thread-loader#thread-loader) when building app with webpack.


## `cache`
- **Type**: `boolean`
- **Default**: `false`

> Enable caching for [`terser-webpack-plugin`](https://github.com/webpack-contrib/terser-webpack-plugin#options) and [`cache-loader`](https://github.com/webpack-contrib/cache-loader#cache-loader).


## `standalone`
- **Type**: `boolean`
- **Default**: `false`

> Inline server bundle dependencies.


This mode bundles `node_modules` that are normally preserved as externals in the server build.


## `publicPath`
- **Type**: `any`
- **Default**: `{}`

> If you are uploading your dist files to a CDN, you can set the publicPath to your CDN.


## `serverURLPolyfill`
- **Type**: `string`
- **Default**: `"url"`

> The polyfill library to load to provide URL and URLSearchParams.


Defaults to `'url'` ([see package](https://www.npmjs.com/package/url)).


## `filenames`

### `app`
- **Type**: `function`
- **Default**: `undefined`

```ts
() => any
```


### `chunk`
- **Type**: `function`
- **Default**: `undefined`

```ts
() => any
```


### `css`
- **Type**: `function`
- **Default**: `undefined`

```ts
() => any
```


### `img`
- **Type**: `function`
- **Default**: `undefined`

```ts
() => any
```


### `font`
- **Type**: `function`
- **Default**: `undefined`

```ts
() => any
```


### `video`
- **Type**: `function`
- **Default**: `undefined`

```ts
() => any
```


## `loaders`

### `file`

#### `esModule`
- **Type**: `boolean`
- **Default**: `false`


### `fontUrl`

#### `esModule`
- **Type**: `boolean`
- **Default**: `false`


#### `limit`
- **Type**: `number`
- **Default**: `1000`


### `imgUrl`

#### `esModule`
- **Type**: `boolean`
- **Default**: `false`


#### `limit`
- **Type**: `number`
- **Default**: `1000`


### `pugPlain`
- **Type**: `any`
- **Default**: `{}`


### `vue`

#### `productionMode`
- **Type**: `boolean`
- **Default**: `true`


#### `transformAssetUrls`

##### `video`
- **Type**: `string`
- **Default**: `"src"`


##### `source`
- **Type**: `string`
- **Default**: `"src"`


##### `object`
- **Type**: `string`
- **Default**: `"src"`


##### `embed`
- **Type**: `string`
- **Default**: `"src"`


#### `compilerOptions`
- **Type**: `any`
- **Default**: `{}`


### `css`

#### `importLoaders`
- **Type**: `number`
- **Default**: `0`


#### `esModule`
- **Type**: `boolean`
- **Default**: `false`


### `cssModules`

#### `importLoaders`
- **Type**: `number`
- **Default**: `0`


#### `esModule`
- **Type**: `boolean`
- **Default**: `false`


#### `modules`

##### `localIdentName`
- **Type**: `string`
- **Default**: `"[local]_[hash:base64:5]"`


### `less`
- **Type**: `any`
- **Default**: `{"sourcemap":true}`


### `sass`

#### `sassOptions`

##### `indentedSyntax`
- **Type**: `boolean`
- **Default**: `true`


### `scss`
- **Type**: `any`
- **Default**: `{"sourcemap":true}`


### `stylus`
- **Type**: `any`
- **Default**: `{"sourcemap":true}`


### `vueStyle`
- **Type**: `any`
- **Default**: `{"sourcemap":true}`


## `styleResources`
- **Type**: `any`
- **Default**: `{}`


## `plugins`
- **Type**: `array`
- **Default**: `[]`

> Add webpack plugins.


## `terser`
- **Type**: `any`
- **Default**: `{}`

> Terser plugin options.


Set to false to disable this plugin, or pass an object of options.


## `hardSource`
- **Type**: `boolean`
- **Default**: `false`

> Enables the [HardSourceWebpackPlugin](https://github.com/mzgoddard/hard-source-webpack-plugin) for improved caching.


## `aggressiveCodeRemoval`
- **Type**: `boolean`
- **Default**: `false`

> Hard-replaces `typeof process`, `typeof window` and `typeof document` to tree-shake bundle.


## `optimizeCSS`
- **Type**: `boolean`
- **Default**: `false`

> OptimizeCSSAssets plugin options.


Defaults to true when `extractCSS` is enabled.


## `optimization`

### `runtimeChunk`
- **Type**: `string`
- **Default**: `"single"`


### `minimize`
- **Type**: `boolean`
- **Default**: `true`

> Set minimize to false to disable all minimizers. (It is disabled in development by default)


### `minimizer`
- **Type**: `any`
- **Default**: `{}`

> You can set minimizer to a customized array of plugins.


### `splitChunks`

#### `chunks`
- **Type**: `string`
- **Default**: `"all"`


#### `automaticNameDelimiter`
- **Type**: `string`
- **Default**: `"/"`


#### `cacheGroups`
- **Type**: `any`
- **Default**: `{}`


## `splitChunks`

### `layouts`
- **Type**: `boolean`
- **Default**: `false`


### `pages`
- **Type**: `boolean`
- **Default**: `true`


### `commons`
- **Type**: `boolean`
- **Default**: `true`


## `corejs`
- **Type**: `string`
- **Default**: `"auto"`

> Nuxt will automatically detect the current version of `core-js` in your project (`'auto'`), or you can specify which version you want to use (`2` or `3`).


## `babel`

### `configFile`
- **Type**: `boolean`
- **Default**: `false`


### `babelrc`
- **Type**: `boolean`
- **Default**: `false`


### `plugins`
- **Type**: `array`
- **Default**: `[]`

> An array of Babel plugins to load, or a function that takes webpack context and returns an array of Babel plugins.


For more information see [Babel plugins options](https://babeljs.io/docs/en/options#plugins) and [babel-loader options](https://github.com/babel/babel-loader#options).


### `presets`
- **Type**: `any`
- **Default**: `{}`

> The Babel presets to be applied.


### `cacheDirectory`
- **Type**: `any`
- **Default**: `{}`


## `postcss`

### `execute`
- **Type**: `undefined`
- **Default**: `undefined`


### `postcssOptions`

### `sourcemap`
- **Type**: `undefined`
- **Default**: `undefined`


### `implementation`
- **Type**: `undefined`
- **Default**: `undefined`


### `order`
- **Type**: `string`
- **Default**: `""`


## `html`

### `minify`

#### `collapseBooleanAttributes`
- **Type**: `boolean`
- **Default**: `true`


#### `decodeEntities`
- **Type**: `boolean`
- **Default**: `true`


#### `minifyCSS`
- **Type**: `boolean`
- **Default**: `true`


#### `minifyJS`
- **Type**: `boolean`
- **Default**: `true`


#### `processConditionalComments`
- **Type**: `boolean`
- **Default**: `true`


#### `removeEmptyAttributes`
- **Type**: `boolean`
- **Default**: `true`


#### `removeRedundantAttributes`
- **Type**: `boolean`
- **Default**: `true`


#### `trimCustomFragments`
- **Type**: `boolean`
- **Default**: `true`


#### `useShortDoctype`
- **Type**: `boolean`
- **Default**: `true`


## `template`
- **Type**: `any`
- **Default**: `{}`

> Allows setting a different app template (other than `@nuxt/vue-app`)


## `watch`
- **Type**: `array`
- **Default**: `[]`

> You can provide your custom files to watch and regenerate after changes.


This feature is especially useful for using with modules.


## `devMiddleware`

### `stats`
- **Type**: `string`
- **Default**: `"none"`


## `hotMiddleware`
- **Type**: `any`
- **Default**: `{}`

> See [webpack-hot-middleware](https://github.com/webpack-contrib/webpack-hot-middleware) for available options.


## `vendor`

### `$meta`

#### `deprecated`
- **Type**: `string`
- **Default**: `"vendor has been deprecated since nuxt 2"`


## `stats`
- **Type**: `boolean`
- **Default**: `false`

> Set to `'none'` or `false` to disable stats printing out after a build.


## `friendlyErrors`
- **Type**: `boolean`
- **Default**: `true`

> Set to `false` to disable the overlay provided by [FriendlyErrorsWebpackPlugin](https://github.com/nuxt/friendly-errors-webpack-plugin).


## `additionalExtensions`
- **Type**: `array`
- **Default**: `[]`

> Additional extensions (beyond `['vue', 'js']` to support in `pages/`, `layouts/`, `middleware/`, etc.)


## `warningIgnoreFilters`
- **Type**: `array`
- **Default**: `[]`

> Filters to hide build warnings.


## `followSymlinks`
- **Type**: `boolean`
- **Default**: `false`

> Set to true to scan files within symlinks in the build (such as within `pages/`).


## `transpile`
- **Type**: `Array<string | RegExp | ((ctx: { isClient?: boolean; isServer?: boolean; isDev: boolean }) => string | RegExp | false)>`
- **Default**: `[]`

> If you want to transpile specific dependencies with Babel, you can add them here. Each item in transpile can be a package name, a function, a string or regex object matching the dependency's file name.


You can also use a function to conditionally transpile. The function will receive an object ({ isDev, isServer, isClient, isModern, isLegacy }).


# `cli`

## `badgeMessages`
- **Type**: `string[]`
- **Default**: `[]`

> Add a message to the CLI banner by adding a string to this array.


## `bannerColor`
- **Type**: `string`
- **Default**: `"green"`

> Change the color of the 'Nuxt.js' title in the CLI banner.


# `editor`
- **Type**: `string`
- **Default**: `undefined`

> Your preferred code editor to launch when debugging.


# `watch`
- **Type**: `string[]`
- **Default**: `[]`

> The watch property lets you watch custom files for restarting the server.


`chokidar` is used to set up the watchers. To learn more about its pattern options, see chokidar documentation.


# `styleExtensions`
- **Type**: `array`
- **Default**: `[".css",".pcss",".postcss",".styl",".stylus",".scss",".sass",".less"]`

> The style extensions that should be resolved by the Nuxt resolver (for example, in `css` property).


# `dir`

## `assets`
- **Type**: `string`
- **Default**: `"assets"`

> The assets directory (aliased as `~assets` in your build).


## `app`
- **Type**: `string`
- **Default**: `"app"`

> The directory containing app template files like `app.html` and `router.scrollBehavior.js`


## `globalName`
- **Type**: `string`
- **Default**: `"nuxt"`

> Allows customizing the global ID used in the main HTML template as well as the main Vue instance name and other options.


## `modern`
- **Type**: `'server' | 'client' | boolean`
- **Default**: `{}`

> Whether to produce a separate modern build targeting browsers that support ES modules.


Set to `'server'` to enable server mode, where the Nuxt server checks browser version based on the user agent and serves the correct bundle.
Set to `'client'` to serve both the modern bundle with `<script type="module">` and the legacy bundle with `<script nomodule>`. It will also provide a `<link rel="modulepreload">` for the modern bundle. Every browser that understands the module type will load the modern bundle while older browsers fall back to the legacy (transpiled) bundle.
If you have set `modern: true` and are generating your app or have `ssr: false`, modern will be set to `'client'`.
If you have set `modern: true` and are serving your app, modern will be set to `'server'`.


## `mode`
- **Type**: `string`
- **Default**: `"universal"`


## `env`

## `createRequire`
- **Type**: `'jiti' | 'native' | ((p: string | { filename: string }) => NodeRequire)`
- **Default**: `undefined`

> Set the method Nuxt uses to require modules, such as loading `nuxt.config`, server middleware, and so on - defaulting to `jiti` (which has support for TypeScript and ESM syntax).

```ts
() => any
```


## `target`
- **Type**: `'server' | 'static'`
- **Default**: `"server"`

> Whether your Nuxt app should be built to be served by the Nuxt server (`server`) or as static HTML files suitable for a CDN or other static file server (`static`).


This is unrelated to `ssr`.


## `globals`

### `id`
- **Type**: `(globalName: string) => string`
- **Default**: `undefined`

```ts
() => any
```


### `nuxt`
- **Type**: `(globalName: string) => string`
- **Default**: `undefined`

```ts
() => any
```


### `context`
- **Type**: `(globalName: string) => string`
- **Default**: `undefined`

```ts
() => any
```


### `pluginPrefix`
- **Type**: `(globalName: string) => string`
- **Default**: `undefined`

```ts
() => any
```


### `readyCallback`
- **Type**: `(globalName: string) => string`
- **Default**: `undefined`

```ts
() => any
```


### `loadedCallback`
- **Type**: `(globalName: string) => string`
- **Default**: `undefined`

```ts
() => any
```


## `store`
- **Type**: `string`
- **Default**: `"store"`

> The folder which will be used to auto-generate your Vuex store structure.


# `serverMiddleware`
- **Type**: `array`
- **Default**: `[]`

> Server middleware are connect/express/h3-shaped functions that handle server-side requests. They run on the server and before the Vue renderer.


By adding entries to `serverMiddleware` you can register additional routes without the need for an external server.
You can pass a string, which can be the name of a node dependency or a path to a file. You can also pass an object with `path` and `handler` keys (`handler` can be a path or a function).


# `generate`

## `dir`
- **Type**: `string`
- **Default**: `"/home/runner/work/bridge/bridge/packages/bridge-schema/dist"`

> Directory name that holds all the assets and generated pages for a `static` build.


## `concurrency`
- **Type**: `number`
- **Default**: `500`

> The number of routes that are generated concurrently in the same thread.


## `interval`
- **Type**: `number`
- **Default**: `0`

> Interval in milliseconds between two render cycles to avoid flooding a potential API with calls.


## `subFolders`
- **Type**: `boolean`
- **Default**: `true`

> Set to `false` to disable creating a directory + `index.html` for each route.


## `fallback`
- **Type**: `string`
- **Default**: `"200.html"`

> The path to the fallback HTML file.


Set this as the error page in your static server configuration, so that unknown routes can be rendered (on the client-side) by Nuxt.
If unset or set to a falsy value, the name of the fallback HTML file will be `200.html`. If set to `true`, the filename will be `404.html`. If you provide a string as a value, it will be used instead.


## `crawler`
- **Type**: `boolean`
- **Default**: `true`

> Set to `false` to disable generating pages discovered through crawling relative links in generated pages.


## `manifest`
- **Type**: `boolean`
- **Default**: `true`

> Set to `false` to disable generating a `manifest.js` with a list of all generated pages.


## `nojekyll`
- **Type**: `boolean`
- **Default**: `true`

> Set to `false` to disable generating a `.nojekyll` file (which aids compatibility with GitHub Pages).


## `cache`

### `ignore`
- **Type**: `array`
- **Default**: `[]`

> An array of files or directories to ignore. (It can also be a function that returns an array.)


### `globbyOptions`

#### `gitignore`
- **Type**: `boolean`
- **Default**: `true`


## `staticAssets`

### `dir`
- **Type**: `string`
- **Default**: `"static"`

> The directory underneath `/_nuxt/`, where static assets (payload, state and manifest files) will live.


### `base`
- **Type**: `string`
- **Default**: `"/_nuxt/home/runner/work/bridge/bridge/packages/bridge-schema/dist"`

> The full path to the directory underneath `/_nuxt/` where static assets (payload, state and manifest files) will live.


### `versionBase`
- **Type**: `string`
- **Default**: `""`

> The full path to the versioned directory where static assets for the current build are located.


### `version`
- **Type**: `string`
- **Default**: `"1755259347"`

> A unique string to uniquely identify payload versions (defaults to the current timestamp).


# `messages`

## `loading`
- **Type**: `string`
- **Default**: `"Loading..."`

> The text that displays on the Nuxt loading indicator when `ssr: false`.


## `error_404`
- **Type**: `string`
- **Default**: `"This page could not be found"`

> The 404 text on the default Nuxt error page.


## `server_error`
- **Type**: `string`
- **Default**: `"Server error"`

> The text to display on the default Nuxt error page when there has been a server error.


## `nuxtjs`
- **Type**: `string`
- **Default**: `"Nuxt"`

> The text (linked to nuxtjs.org) that appears on the built-in Nuxt error page.


## `back_to_home`
- **Type**: `string`
- **Default**: `"Back to the home page"`

> The text (linked to the home page) that appears on the built-in Nuxt error page.


## `server_error_details`
- **Type**: `string`
- **Default**: `"An error occurred in the application and your page could not be served. If you are the application owner, check your logs for details."`

> The message that will display on a white screen if the built-in Nuxt error page can't be rendered.


## `client_error`
- **Type**: `string`
- **Default**: `"Error"`

> The default error title (if there isn't a specific error message) on the built-in Nuxt error page.


## `client_error_details`
- **Type**: `string`
- **Default**: `"An error occurred while rendering the page. Check developer tools console for details."`

> The error message (in debug mode) on the built-in Nuxt error page.


# `render`

## `bundleRenderer`

### `shouldPrefetch`
- **Type**: `function`
- **Default**: `undefined`

```ts
() => any
```


### `shouldPreload`
- **Type**: `function`
- **Default**: `undefined`

```ts
() => any
```


### `runInNewContext`
- **Type**: `any`
- **Default**: `{}`

> enabled by default for development


## `crossorigin`
- **Type**: `any`
- **Default**: `{}`

> Configure the crossorigin attribute on `<link rel="stylesheet">` and `<script>` tags in generated HTML. [More information](https://developer.mozilla.org/en-US/docs/Web/HTML/Attributes/crossorigin).


## `resourceHints`
- **Type**: `boolean`
- **Default**: `true`

> Adds prefetch and preload links for faster initial page load time. You probably don't want to disable this option unless you have many pages and routes.


## `ssr`
- **Type**: `any`
- **Default**: `{}`

> Whether to enable rendering of HTML - either dynamically (in server mode) or at generate time.


This option is automatically set based on global SSR value if not provided. This can be useful to dynamically enable/disable SSR at runtime after image builds (with docker, for example).


## `ssrLog`
- **Type**: `boolean`
- **Default**: `false`

> Forward server-side logs to the browser for better debugging (only available in development).


Set to `collapsed` to collapse the logs, or `false` to disable.


## `http2`

### `push`
- **Type**: `boolean`
- **Default**: `false`

> Set to true to enable HTTP2 push headers.


### `shouldPush`
- **Type**: `any`
- **Default**: `null`


### `pushAssets`
- **Type**: `any`
- **Default**: `null`

> You can control what links to push using this function. It receives `req`, `res`, `publicPath` and a `preloadFiles` array.


You can add your own assets to the array as well. Using `req` and `res` you can decide what links to push based on the request headers, for example using the cookie with application version.
Assets will be joined together with `,` and passed as a single `Link` header.


## `static`

### `prefix`
- **Type**: `boolean`
- **Default**: `true`

> Whether to add the router base to your static assets.


## `compressor`

### `threshold`
- **Type**: `number`
- **Default**: `0`


## `etag`

### `hash`
- **Type**: `boolean`
- **Default**: `false`


### `weak`
- **Type**: `boolean`
- **Default**: `false`


## `csp`
- **Type**: `boolean`
- **Default**: `false`

> Use this to configure Content-Security-Policy to load external resources. [Read more](https://developer.mozilla.org/en-US/docs/Web/HTTP/CSP).


Set to `true` to enable, or you can pass options to fine-tune your CSP options.
**Prerequisites**: These CSP settings are only effective when using Nuxt with `mode: 'server'` to serve your SSR application.
**Updating settings**: These settings are read by the Nuxt server directly from `nuxt.config`. This means changes to these settings take effect when the server is restarted. There is no need to rebuild the application to update CSP settings.


## `dist`

### `index`
- **Type**: `boolean`
- **Default**: `false`


### `maxAge`
- **Type**: `string`
- **Default**: `"1y"`


## `fallback`

### `dist`
- **Type**: `any`
- **Default**: `{}`

> For routes matching the publicPath (`/_nuxt/*`). Disable by setting to `false`.


### `static`

#### `skipUnknown`
- **Type**: `boolean`
- **Default**: `true`


#### `handlers`

##### `.htm`
- **Type**: `boolean`
- **Default**: `false`


##### `.html`
- **Type**: `boolean`
- **Default**: `false`


# `router`

## `mode`
- **Type**: `string`
- **Default**: `"history"`

> Configure the router mode.


For server-side rendering it is not recommended to change it.


## `base`
- **Type**: `string`
- **Default**: `"/"`

> The base URL of the app. For example, if the entire single page application is served under `/app/`, then base should use the value `'/app/'`.


This can be useful if you need to serve Nuxt as a different context root, from within a bigger web site.


## `_routerBaseSpecified`
- **Type**: `boolean`
- **Default**: `true`


## `routes`
- **Type**: `array`
- **Default**: `[]`


## `routeNameSplitter`
- **Type**: `string`
- **Default**: `"-"`

> This allows changing the separator between route names that Nuxt uses.


Imagine we have the page file `pages/posts/_id.vue`. Nuxt will generate the route name programmatically, in this case `posts-id`. If you change the routeNameSplitter config to `/` the name will change to `posts/id`.


## `middleware`
- **Type**: `array`
- **Default**: `[]`

> Set the default(s) middleware for every page of the application.


## `linkActiveClass`
- **Type**: `string`
- **Default**: `"nuxt-link-active"`

> Globally configure `<nuxt-link>` default active class.


## `linkExactActiveClass`
- **Type**: `string`
- **Default**: `"nuxt-link-exact-active"`

> Globally configure `<nuxt-link>` default exact active class.


## `linkPrefetchedClass`
- **Type**: `boolean`
- **Default**: `false`

> Globally configure `<nuxt-link>` default prefetch class (feature disabled by default).


## `extendRoutes`
- **Type**: `any`
- **Default**: `null`

> You can pass a function to extend the routes created by Nuxt.


## `scrollBehavior`
- **Type**: `any`
- **Default**: `{}`

> The `scrollBehavior` option lets you define a custom behavior for the scroll position between the routes. This method is called every time a page is rendered. To learn more about it, see the `vue-router` documentation.


## `parseQuery`
- **Type**: `boolean`
- **Default**: `false`

> Provide custom query string parse function. Overrides the default.


## `stringifyQuery`
- **Type**: `boolean`
- **Default**: `false`

> Provide custom query string stringify function. Overrides the default.


## `fallback`
- **Type**: `boolean`
- **Default**: `false`

> Controls whether the router should fall back to hash mode when the browser does not support history.pushState, but mode is set to history.


Setting this to `false` essentially makes every router-link navigation a full page refresh in IE9. This is useful when the app is server-rendered and needs to work in IE9, because a hash mode URL does not work with SSR.


## `prefetchLinks`
- **Type**: `boolean`
- **Default**: `true`

> Configure `<nuxt-link>` to prefetch the code-splitted page when detected within the viewport. Requires [IntersectionObserver](https://developer.mozilla.org/en-US/docs/Web/API/Intersection_Observer_API) to be supported (see [Caniuse](https://caniuse.com/intersectionobserver)).


## `prefetchPayloads`
- **Type**: `boolean`
- **Default**: `true`

> When using `nuxt generate` with target: 'static', Nuxt will generate a payload.js for each page.


With this option enabled, Nuxt will automatically prefetch the payload of the linked page when the `<nuxt-link>` is visible in the viewport, making instant navigation.


## `trailingSlash`
- **Type**: `any`
- **Default**: `{}`

> If this option is set to `true`, trailing slashes will be appended to every route. If set to `false`, they'll be removed.


# `server`

## `https`
- **Type**: `false | { key: string; cert: string }`
- **Default**: `false`

> Whether to enable HTTPS.


## `port`
- **Type**: `number`
- **Default**: `3000`


## `host`
- **Type**: `string`
- **Default**: `"localhost"`


## `socket`
- **Type**: `undefined`
- **Default**: `undefined`


## `timing`
- **Type**: `function`
- **Default**: `undefined`

> Enabling timing adds a middleware to measure the time elapsed during server-side rendering and adds it to the headers as 'Server-Timing'.

```ts
() => any
```


Apart from true/false, this can be an object for providing options. Currently, only `total` is supported (which directly tracks the whole time spent on server-side rendering.