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Overview

Overview
Getting Started
Basics
Examples
Benchmarks

Guides

Project Structure
App Router
Routing
Layouts and Slots
Server and Client Model
React Compatibility
SSR and Streaming
Link and Navigation
Data Loading
SSG and Static Export
Environment Variables
HTTP APIs
Middleware
Server Actions
Cache and Revalidation
Cookies and Sessions
Authentication
Forms and Validation
Testing
Metadata and Head
CSS and Assets
CSP
External Scripts
File Uploads and CSRF

Advanced

MDX
i18n
Vite Plugin Integration

Utilities

Virtualized Lists (@reckona/mreact-virtual)
Store (@reckona/mreact-store)
Server State (@reckona/mreact-query)

Deployments

Host Policy and Proxies
Source Maps
Logging and Diagnostics
CDN Assets
Cache Policy
Cloudflare
AWS Lambda
Container and Cloud Run
Static Hosting

Reference

CLI
Config
Environment Variables Reference
Route Module Exports
Route Handler Context
Response Helpers
Adapters
Metadata API
Auth API
Cache API
API Reference

Reference

API Reference/@reckona/mreact-router/isNotFoundError

Function@reckona/mreact-routerSource

isNotFoundError

Checks whether an unknown error is an app-router not-found signal.

Signature

function isNotFoundError(error: unknown): boolean