title: Interceptors only for specific Service
body: <p>I have several services in my app that point to different API URLs. Now I need to set different headers to each of these services. My question is now regarding the new interceptors in Angular 4. Is there a possibility to set one interceptor for a specific service? So each service has its specific interceptor?</p>
  
  <p>Hopefully, you guys get my question.</p>