Error "Unknown error. Try logging in." doesn't provide enough information

[studgeek]

I get the error "Error "Unknown error. Try logging in." even though see some CLs listed in GerritMonitor. If I click on "Try logging in" I am taken to a repo's gerrit page that seems to login in just fine.

[studgeek]

I tracked down the cause of this by looking at the console logs. It seemed to be Gerrit Instance URL that had a CORS error. I switched to different variation of the URL and that fixed the issue.
Some thoughts on how this could perhaps be better handled:

In GerritMonitor options that Gerrit Instance was not enabled, not I still got the error. So it seems GerritMonitor was trying to connect to it even though it wasn't enabled.

It would be very helpful if in the error message or in options it would list Gerrit Instances it is getting an error for.