I was trying to use provideAngularSplitOptions(...) in a standalone Angular 19 app, in the ApplicationConfig.providers array. This caused a runtime error:

NullInjectorError: No provider for InjectionToken angular-split-global-config!

Link to reproduce the bug :
https://stackblitz.com/edit/angular-split-demo-v19-mhpzs53r?file=src%2Fmain.ts