steps:

1. EXEC: launch connection wizard and try to create a new connection
2. EXEC: as Server use "https://open.paas.redhat.com"
3. EXEC: hit "retrieve" link in the "Authentication" group
4. ASSERT. dialog pops up where you'll be able to retrieve a token but before that also a dialog that warns of a untrusted/self-signed certificate
5. EXEC: hit "Cancel" aka refuse to trust the certificate

Result:
The dialog where the page to retrieve a token would be displayed stays open and blank