Canvas

Use canvas to show HTML on connected Mac/iOS/Android nodes.

Model

• Canvas host serves files from plugins.entries.canvas.config.host.root.
• Canvas routes live on the Gateway HTTP port (gateway.port, default 18789).
• Node bridge sends canvas URLs to connected node apps.
• Node apps render URLs in a WebView.
• Host name follows gateway.bind: loopback local only, LAN IP for LAN, Tailscale host for tailnet, auto picks best route.
• Localhost URLs only work for a node on the same machine.
• Paired nodes normally receive node-scoped pluginSurfaceUrls.canvas capability URLs; prefer those when available.

Config

Active config: $OPENCLAW_CONFIG_PATH or ~/.openclaw/openclaw.json.