I created a new Echo Bot in the Azure Portal. I would test it in the WebChat (just the deployed template) and i got the error: "There was an error sending this message to your bot: HTTP status code InternalServerError" in the WebChat Channel Tab!
The messaging endpoint xxx.azurewebsites.net/api/messages says "Upgrade to WebSocket is required."

Enabled the Streaming Endpoint as well.
How to solve the problem and get the bot to work?
UPDATE: The /api/messages is available now and getting "There was an error sending this message to your bot: HTTP status code ServiceUnavailable" in the WebChat