Summary

The Chrome Browser Relay extension loses its CDP (Chrome DevTools Protocol) connection to attached tabs after any click action that triggers SPA (Single Page Application) in-page navigation. This makes it impossible to interact with SPAs like Gmail, Google Calendar, and similar apps beyond a single read-only snapshot.

Steps to Reproduce

1. Attach the Chrome relay extension to a Gmail or Google Calendar tab
2. Use browser(action='tabs') — tab appears correctly with targetId
3. Use browser(action='snapshot', targetId=...) — works, returns full page content
4. Use browser(action='act', request={kind:'click', ref:'...', targetId:'...'}) — click succeeds (returns ok: true)
5. Use browser(action='snapshot', targetId=...) again — fails with 'tab not found'

Observed Behavior

• After any click action that triggers SPA navigation (URL hash change, history API push, etc.), the CDP WebSocket connection to the tab is lost
• The tab still appears in browser(action='tabs') with the same targetId
• But all subsequent snapshot, act, or navigate calls fail with Error: tab not found
• Even browser(action='navigate') to a new URL on the same tab fails after the connection drops
• The only recovery is for the user to manually re-click the extension badge

Expected Behavior

The extension should maintain (or automatically re-establish) the CDP connection after in-page SPA navigation events. The tab's targetId doesn't change, so the extension should be able to reconnect transparently.

Impact

This effectively makes the browser relay read-only for SPAs — you can snapshot a page but can't interact with it. Key affected apps:

• Gmail — can't click on emails in inbox
• Google Calendar — can't navigate between days/weeks
• Any SPA — clicking internal links breaks the connection

Environment

• OpenClaw version: 2026.2.17 (build 4134875)
• macOS (Apple Silicon)
• Chrome with OpenClaw Browser Relay extension

Suggested Fix

The extension's CDP proxy should listen for navigation events (chrome.webNavigation.onHistoryStateUpdated, chrome.webNavigation.onCompleted) and re-establish the CDP WebSocket connection to the tab automatically, preserving the same targetId mapping.