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Waishnav merged 1 commit into from
Aug 31, 2026
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docs: document correct Tailscale Funnel setup #285

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13 changes: 13 additions & 0 deletions docs/gotchas.md
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Original file line number Diff line number Diff line change
Expand Up @@ -65,6 +65,19 @@ If you saved the wrong value:
npx @waishnav/devspace config set publicBaseUrl https://your-tunnel-host.example.com
```

## Tailscale Funnel `/mcp` Returns 404

Proxy the whole DevSpace server from the Funnel root:

```bash
tailscale funnel --bg 7676
```

Do not use `--set-path=/mcp`. Tailscale removes a configured mount path before
proxying to the local service, so a public `/mcp` request can otherwise arrive
at DevSpace as `/`. DevSpace also needs OAuth routes outside `/mcp`, so serving
the whole local origin is the correct setup.

## Tunnel URL Changed

Temporary tunnels often change URLs between runs.
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10 changes: 10 additions & 0 deletions docs/setup.md
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Expand Up @@ -77,6 +77,16 @@ reverse proxy first and point it at:
http://127.0.0.1:7676
```

For Tailscale Funnel, proxy the whole DevSpace server from the root path:

```bash
tailscale funnel --bg 7676
```

Do not mount Funnel only at `/mcp` with `--set-path=/mcp`. DevSpace also serves
OAuth discovery and authorization routes outside `/mcp`, and a path mount can
strip `/mcp` before the request reaches DevSpace.

Enter the public origin without `/mcp`:

```text
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