# InterceptorSettings

This structure configures the interceptor service in your application.

```javascript
//Interceptor Settings
interceptorSettings = {
    throwOnInvalidStates = false,
    customInterceptionPoints = "onLogin,onWikiTranslation,onAppClose"
};
```

## `throwOnInvalidStates`

This tells the interceptor service to throw an exception if the state announced for interception is not valid or does not exist. Defaults to **false**.

## `customInterceptionPoints`

This key is a comma delimited list or an array of custom interception points you will be registering for custom announcements in your application. This is the way to provide an observer-observable pattern to your applications.

> **Info** Please see the [Interceptors](/v4.x-1/digging-deeper/interceptors.md) section for more information.


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