I am following the tutorial at https://kitware.github.io/paraviewweb/docs/docker.html step-by-step, managing to browse to the demo page. But when selecting the Visualizer application, I am greeted with “Server disconnected” underneath the spinning logo after a couple of seconds.
Checking the console show:
WebSocket connection to 'ws://localhost/proxy?sessionId=e5e621fe-13cc-11eb-a18e-0242ac110002&path=ws' failed: Error in connection establishment: net::ERR_CONNECTION_REFUSED
Since the paraview application is running on an EC2 instance, I would suspect this address should point to the EC2 server (eg. ec2-myinstancename.eu-central-1.compute.amazonaws.com) instead of localhost.
Visiting localhost:9000/visualizer locally on the EC2 machine results in no issues.
What could I have misconfigured?