TypeError: undefined.map
route.ts:47
fix ready
null.property
intercepted
GET /api/users 500
Internal Server Error
Hydration failed
Text content did not match
CORS error
Access-Control-Allow-Origin missing
POST /api/login 404
Not Found
console error
Unhandled promise rejection
OPTIONS /api/auth 403
Forbidden
NetworkError
failed to load resource
// live interception
Watch errors disappear
"error": "TypeError: Cannot read property 'map' of undefined"
"trace": "UserList.jsx:42"
ERROR
-
users.map(user => user.name)+
users?.map(user => user.name)"fix": "optional chaining applied"
"applied_at": "--:--:--"
Intercepts runtime errors
Detects crashes directly in the browser before they break the user experience.
Understands stack traces
Analyzes component failures and highlights the exact source of the issue.
Suggests safe fixes
Generates cleaner fallback logic and safer rendering patterns instantly.
// runtime pipeline
From error to resolution
TypeError: undefined.map
route.ts:47
fix ready
null.property
intercepted
Real-time Detection
scanning
detected
intercepted
Intercepts runtime errors instantly before they break execution
monitoring
Context Mapping
- user.map(...)
+ user?.map(...)
Understands the cause by linking runtime failures to your source code
patched
Instant Fixes
install✓
setup✓
ready✓
Applies safe, intelligent fixes without requiring manual debugging
ready
// frequently asked
Developer questions
// initiate deployment
Stop Debugging
Start ERRasing
ERRase intercepts runtime failures, stabilizes execution, and keeps your app running — without interrupting your flow.
> ready for deployment_
TypeError: undefined.map
route.ts:47
fix ready
null.property
intercepted
Free for developers • Chrome extension
// deployment complete