itzg/saml-auth-proxy

Error when with websockets

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#37 opened on Oct 25, 2022

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help wanted

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Description

Getting the following error when the backend uses websockets.

"ERR failed to transfer backend response body: http: request method or response status code does not allow body"

Dev console shows "WebSocket connection to 'wss://xyz/ws' failed"

Are websockets not supported or is it a configuration issue?

Thanks

Contributor guide

Research direction
Investigate how the proxy handles WebSocket upgrade requests. Check if the reverse proxy logic correctly forwards the upgrade headers and does not attempt to read the response body for WebSocket connections. Look into the http.ResponseWriter and http.Hijacker interfaces.
Tech stack
go
Domain
backend
Issue type
Bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
GoWebSocket basics
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
55