My client was having a critical issue after upgrading to Qlik Sense from 3.0.5 to 3.2.1. They could open the app but the data connections was spinning forever under DLE. This only happens for all external users.
After investigate the log, we found the web socket got broken. Now the client add the path of data prep into the reverse proxy server whitelist. This resolves the problem.
They want to find out 'a list of paths used by Qlik for the reverse proxy'
Could anyone please help?