Home assistant (400 Bad Request) Docker + Proxy - Solution

Configuration
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@francisp, Are you talking about either of these?

  • I have set up the reverse proxy on my Synology
  • I have set up the HTTP x_forward/trusted proxy statements in HA configurations.yaml, (clearing the 400 error).

Then, yes. If there’s something other than these to enable the websockets in nginx configuration, can you provide more detail or a link? Thanks for responding!