TS2322: the type is incorrect

I went through a tutorial on implementing msal with Angular

https://learn.microsoft.com/en-us/azure/active-directory/develop/tutorial-v2-angular-auth-code

It seems like the issue lies in this part of the code

@NgModule({
  imports: [RouterModule.forRoot(routes, {
    initialNavigation: !isIframe ? 'enabled' : 'disabled'
  })],
  exports: [RouterModule]
})

When I run

npm start

An error message is displayed stating

TS2322: Type '"disabled" | "en abled"' is not assignable to type 'InitialNavigation | undefined'. Type '"enabled"' is not assignable to type 'InitialNavigation | undefined'.

Upon clicking on initialNavigation, the following explanation is provided

/**
 * One of `enabled`, `enabledBlocking`, `enabledNonBlocking` or `disabled`.
 * When set to `enabled` or `enabledBlocking`, the initial navigation starts before the root
 * component is created. The bootstrap is blocked until the initial navigation is complete. This
 * value is required for [server-side rendering](guide/universal) to work. When set to
 * `enabledNonBlocking`, the initial navigation starts after the root component has been created.
 * The bootstrap is not blocked on the completion of the initial navigation. When set to
 * `disabled`, the initial navigation is not performed. The location listener is set up before the
 * root component gets created. Use if there is a reason to have more control over when the router
 * starts its initial navigation due to some complex initialization logic.
 */
initialNavigation?: InitialNavigation;

Answer №1

Based on information from the Angular documentation, the variable InitialNavigation can be set to one of three values: 'disabled', 'enabledBlocking', or 'enabledNonBlocking'.

type InitialNavigation = 'disabled' | 'enabledBlocking' | 'enabledNonBlocking';

The default behavior is for InitialNavigation to be set to 'enabledNonBlocking'.

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