URL Map is not working with backend service on Load Balancer Google Cloud

I am setting up URL Maps on our Backend Services with Load Balancer. The issue is that my URL Maps are not working for some reason. When I tried to browse domain.com/path, it shows

The requested URL /bpd was not found on this server.

I do believe I did the correct way, but seems that its still not working.

Please see screenshot below:

[![image][1]][1]

/* - working

/path1 and /path2 - not working, shows error - was not found on this server

app.yaml file:

runtime: python27
api_version: 1
threadsafe: true
service: 
handlers:
- url: /
  static_files: 
  upload: 
  secure: always
  redirect_http_response_code: 301

- url: /(.*)
  static_files: www/\1
  upload: www/(.*)

I also set-up Serverless network endpoint group and connected with Google App Engine for the Backend Services.

Thank you all for your help.

Thanks to your comment, I though I found the mistake. In fact, when you define a URL map in a load balancer, the query path in entry of the load balancer is, by default, forwarded as-is to the backend.

Let's take your case

• you have this URL map: <URL>/address/*. Your URL path is /address/*
• The backend is <myAddressAppEngine.appspot.com>. It received the request on this path <myAddressAppEngine.appspot.com>/address/*

And it doesn't work because in reality you expect <myAddressAppEngine.appspot.com>/*.

To solve that, you can use advanced mode in the URL map

Start by setting the default backends for any URL and any path

Then add a new path rule and configure it like this, with a path rewrite to /