Connection error to Virgo

[rgerkin]

Going to the new model page and entering a URL gave a red message:

HTTPConnectionPool(host='scidash-virgo', port=8080): Max retries exceeded with url: /org.geppetto.frontend/geppetto (Caused by NewConnectionError('<urllib3.connection.HTTPConnection object at 0x7f2dc1997748>: Failed to establish a new connection: [Errno 111] Connection refused',))

This was using the staging IP address on Slack: https://asuiconlab.slack.com/archives/CL7JKNG10/p1587728784005000.