Error when registering a user in the UI

[MCLDG]

Update the documentation to explain how to resolve a common error when registering a user in the UI. Sometimes an error is showing indicating the user cannot be registered, explaining that HTTPS and not HTTP should be used. The console (F12) shows a CORS issue. All of this is misleading. The issue is caused by the URL of the ELB not being updated in src/environments/environment.ts

[wuqin0791]

I think it is a common error, because it happened to me too.

[MCLDG]

This issue also occurs if the REST API server is not running.

[MCLDG]

PR coming soon

[UdeanZZ]

I have the same issue. I tried to remove the HTTPS protocol from the Cloud9 url, and also tried to turn off the force HTTPS setting in the browser, but it didn't work. Please help.