MTA on Cloud Foundry with Html5 App Repo and Approuter

Hi SAP!

I was experimenting to build a full-stack app on cloud foundry with a nodejs and a html5 module. I first created a MTA without html5 app repo and it worked fine (especially routing, what this question will be about). Then I created a MTA with a html5 app repo (I checked the checkbox, when creating the html5 module) to take advantage of it and now routing to my nodejs-backend-module does not work anymore. There's always an internal server error.

I've read on the sap help site, that when using html5 app repo AND approuter, the property "destination" is not supported (which I had in the mta without html5 app repo to forward request to the module). So how can I forward requests to my backend module then?

The following shows the approuter with the route to the html5 app repo. When I add a second route with property destination, it does not work anymore.

{
	"welcomeFile": "/index.html",
	"authenticationMethod": "route",
	"logout": {
		"logoutEndpoint": "/do/logout"
	},
	"routes": [{
		"source": "^/(.*)$",
		"target": "$1",
		"service": "html5-apps-repo-rt",
		"authenticationType": "xsuaa"
	
        },{ // PART THAT DOES NOT WORK
		"source": "^/api/([a-z]+)",
		"target": "/$1",
		"destination": "nodejs_repo_api"
	}
]
}

This is mta.yaml file:

ID: mta_test_modules_repo
_schema-version: '2.1'
parameters:
  deploy_mode: html5-repo
version: 0.0.1
modules:
  - name: mta_test_modules_repo_appRouter
    type: approuter.nodejs
    path: mta_test_modules_repo_appRouter
    parameters:
      disk-quota: 256M
      memory: 256M
    requires:
      - name: mta_test_modules_repo_html5_repo_runtime
      - name: uaa_mta_test_modules_repo

  - name: mta_test_modules_repo_ui_deployer
    type: com.sap.html5.application-content
    path: mta_test_modules_repo_ui_deployer
    requires:
      - name: mta_test_modules_repo_html5_repo_host
    build-parameters:
      requires:
        - name: destination_service_frontend
          artifacts:
            - './*'
          target-path: resources/destination_service_frontend

  - name: nodejs_repo
    type: nodejs
    path: nodejs_repo
    provides:
      - name: nodejs_repo_api
        properties:
          url: '${default-url}'
     
  - name: destination_service_frontend
    type: html5
    path: destination_service_frontend
    parameters:
      disk-quota: 500M
      memory: 500M
    build-parameters:
      builder: grunt
    requires:
      - name: nodejs_repo_api
        group: destinations
        properties:
          name: nodejs_repo_api
          url: '~{url}'
          forwardAuthToken: true
      - name: uaa_mta_test_modules_repo
 
resources:
  - name: mta_test_modules_repo_html5_repo_runtime
    parameters:
      service-plan: app-runtime
      service: html5-apps-repo
    type: org.cloudfoundry.managed-service

  - name: mta_test_modules_repo_html5_repo_host
    parameters:
      service-plan: app-host
      service: html5-apps-repo
    type: org.cloudfoundry.managed-service

  - name: uaa_mta_test_modules_repo
    parameters:
      path: ./xs-security.json
      service-plan: application
      service: xsuaa
    type: org.cloudfoundry.managed-service

  - name: dest_mta_test_modules_repo
    parameters:
      service-plan: lite
      service: destination
    type: org.cloudfoundry.managed-service