We have a load balancer with a URL map that points to back-end Cloud run services. When we just use cloud run without a load balancer all the assets load as expected. (e.g links to the cloud run service are correct.
When we put the service behind a load balancer we have some weird issues on the links returned from the backend service.
When we hit the load balancer with this path https://custom.domain.com/hello-no-auth we hit the backend service but all the links returned from the service has the wrong paths. The return links from the service miss the URL path we defined in the URL map. For example, icons will come back with his URL
https://custom.domain.com/assets/icon.svg
but we expected they would come back with
https://custom.domain.com/hello-no-auth/assets/icon.svg
Also https://custom.domain.com is not the real domain but just for demonstration