Server returned handshake error

At the start of "exercise-3", trying to pull up the site returns these 3 errors that stop the light from displaying anything and seems like it cannot connect to the API.

`Uncaught Error: Server returned handshake error: SignalR Service is now in 'Default' service mode. Current mode works as a proxy that routes client traffic to the connected app servers. However app servers are not connected.
at HubConnection.processHandshakeResponse (signalr.min.js:16)
at HubConnection.processIncomingData (signalr.min.js:16)
at WebSocketTransport.HubConnection.connection.onreceive (signalr.min.js:16)
at WebSocket.webSocket.onmessage (signalr.min.js:16)`

`Error: Connection disconnected with error 'Error: Server returned handshake error: SignalR Service is now in 'Default' service mode. Current mode works as a proxy that routes client traffic to the connected app servers. However app servers are not connected.'.`

`app.js:47 Uncaught (in promise) Server returned handshake error: SignalR Service is now in 'Default' service mode. Current mode works as a proxy that routes client traffic to the connected app servers. However app servers are not connected.`

Following the link "https://lifx-lamp-api.azurewebsites.net/api" which is where the API end point lives returns a "page cannot be found"

This seems to be similar to this issue, https://github.com/burkeholland/workshop-vs-code-can-do-that/issues/9

Start with app.js at line 47 and reproduce the handshake failure while loading "exercise-3". Check the Azure API endpoint at lifx-lamp-api.azurewebsites.net/api and compare the symptoms with issue 9; done means the site connects to the API and the light displays instead of returning the SignalR handshake errors.

Written by the indexing model from the issue text.