Can you write out the exact Connection error and error code that you got? I wonder if your application is set up to listen appropriately on Port 8080.
I understand Requests passed to your application on App Engine through the Nginx Proxy would fail if your application stopped listening to Nginx on port 8080[1], or your application is not properly setup to handle requests [2]. The App Engine front end requires that your application code is listening on 8080[3]. [1]https://cloud.google.com/appengine/docs/flexible/nodejs/runtime#application_startup [2]https://cloud.google.com/appengine/docs/flexible/nodejs/how-requests-are-handled#serving_requests [3]https://cloud.google.com/appengine/docs/flexible/custom-runtimes/build#listening_to_port_8080 -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. To unsubscribe from this group and stop receiving emails from it, send an email to google-appengine+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/google-appengine/c58bea2d-650b-4b83-b1f9-48918fb7e077o%40googlegroups.com.