trunk-rs/trunk

can't set 'insecure' flag for websocket proxies with server

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#992 opened on Jun 18, 2025

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good first issuehelp wanted

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Description

when trying to proxy a websocket path like this:

[[proxy]]
backend = "wss://192.168.0.50:8443/some/path"
ws = true
insecure = true

When using trunk serve then, I get the following error when trying to establish the websocket connection:

2025-06-18T07:40:03.106229Z ERROR error establishing WebSocket connection to backend wss://192.168.0.50:8443/some/path for proxy error=Io(Custom { kind: InvalidData, error: InvalidCertificate(UnknownIssuer) })

is there any way currently to make this work with self-signed/untrusted certificates ?

Contributor guide

Research direction
Investigate how the proxy configuration processes the 'insecure' flag for WebSocket connections. Check the proxy setup code to ensure 'insecure' is passed to the TLS client configuration.
Tech stack
rust
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.
Half day
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
Rust
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
50