Fix frontend config

Author: janheinrichmerker

browser/Dockerfile

@@ -8,7 +8,7 @@ RUN npm clean-install
 # Copy remaining source code
 COPY . .
 # Build web app.
-RUN npm run build -- --configuration=production
+RUN npm run build
 
 # Stage 2: Serve pre-built, static files with NGINX.
 FROM nginx:stable-alpine AS runtime

browser/src/environments/environment.ts

@@ -1,6 +1,6 @@
 export const environment = {
   production: true,
   // Assume that both the API and web app are routed on the same hostname.
-  apiUrl: '/',
+  apiUrl: '',
   apiTimeout: 60000,
 };