whitelistedDomains as a promise

Hi, is there any way to pass whitelistedDomains as a promise? The example bellow jwtOptionsFactory receives AppConfigService which returns the domain value. Just for the record, the service is provided as APP_INITIALIZER.

export function jwtOptionsFactory(appConfig: AppConfigService) {
  return {
    tokenGetter: TokenHelper.getToken,
    headerName: 'token',
    authScheme: '',
    whitelistedDomains: [appConfig.domain],
    blacklistedRoutes: []
  };
}

[JWess]

This feature is exactly what my app needs. My app is hosted on a node server that contains a relative endpoint, /configuration, which returns the location of our API, which lives on a different domain. This allows us to use a node environment variable on the node server to configure what API our app should make all its API calls to. As such, we don’t know what domain to whitelist until our APP_INITIALIZER makes the call to /configuration. For this reason, we need this feature…we need whitelistedDomains to support Promises and/or Observables.

[shad1w]

I’d like to know whether this is possible as well.

This would be extremely helpful for use cases where the URL for the application’s backend is dynamically configurable and needs to be retrieved from the application’s assets, for example.