WebSocket handshake: Unexpected response code: 403

Grafana Configuration
1

  • Grafana version 10.4.2

  • I want to create proxy that use localhost:8050/grafana forward to localhost:3000

  • I got error with websocket: WebSocket handshake: Unexpected response code: 403

  • I expected when I use url: localhost:8050/grafana then it will show dashboard and web page of grafana.

  • Below is the configuration that I used:

  • [server]
protocol = http
http_port = 3000
domain = localhost
root_url = http://localhost:8050/grafana/
serve_from_sub_path = true

[security]
allow_embedding = true

[log]
level = debug

    image
    image1919Ă—1065 202 KB

    In Fastapi that I config I got:

  • INFO:     127.0.0.1:55504 - "WebSocket /api/live/ws" 403
INFO:     connection rejected (403 Forbidden)
INFO:     connection closed
2

So that looks like your “proxy” is proxying it wrong, when Grafana responds with 404 response and it doesn’t proxying websockets properly when websocket request is responding with 403 response.

Try some better, well documented proxy:

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