Trust loopback proxy

src/components/ExpressAppComponent.ts

@@ -17,6 +17,9 @@ export default class ExpressAppComponent extends ApplicationComponent<void> {
         this.server = app.listen(this.port, 'localhost', () => {
             Logger.info(`Web server running on localhost:${this.port}.`);
         });
+
+        // Proxy
+        app.set('trust proxy', 'loopback');
     }
 
     public async init(router: Router): Promise<void> {