Question about warnings/errors

[Geppard]

Good day!
I'm using Unity 5.5.0p3 and Meteor-Unity release 3.1.
I have a question - why i can't see any warnings/errors when i try to connect to unavailable url (localhost without server)?
https://github.com/hiddenswitch/Meteor-Unity/blob/master/Plugins/WebSocket.cs#L111 - when i try to connect, the connection is closed and no errors are displayed.
Thanks!