Demo on herokuapp.com isn't working (anymore)

Just wanted to let you know that the demo app isn't working anymore TLS negotiating is successful but then a websocket error "bad handshake" chisel client version 1.10.1

2025/06/05 09:31:20 client: Connecting to wss://chisel-demo.herokuapp.com:443 2025/06/05 09:31:20 client: tun: proxy#3000=>3000: Listening 2025/06/05 09:31:20 client: Connection error: websocket: bad handshake 2025/06/05 09:31:20 client: Retrying in 100ms... 2025/06/05 09:31:20 client: Connection error: websocket: bad handshake (Attempt: 1/unlimited) 2025/06/05 09:31:20 client: Retrying in 200ms... 2025/06/05 09:31:21 client: Connection error: websocket: bad handshake (Attempt: 2/unlimited) 2025/06/05 09:31:21 client: Retrying in 400ms... 2025/06/05 09:31:22 client: Connection error: websocket: bad handshake (Attempt: 3/unlimited) 2025/06/05 09:31:22 client: Retrying in 800ms... 2025/06/05 09:31:23 client: Connection error: websocket: bad handshake (Attempt: 4/unlimited) 2025/06/05 09:31:23 client: Retrying in 1.6s...