Real Linux Electron app under Xvfb; GPU and sandbox disabled. Fresh synthetic project; no live database seed. Light theme; 1100x780 client; captures crop the 484x780 Browser pane. Both commits omit desktopBrowserFd and desktopBrowserControlFd in the primary backend bootstrap, simulating the WSL-only backend channel condition. Base f03db4fbef59c42113e37c32897bf4d25d31cb2b: Typing example.com and Enter clears the address field; the pane remains on Recently used and Local servers. Clicking the listed localhost:7568 server also leaves the address empty and the pane on the new-tab list. Head b51b3613d2ee1d121b50be12d3d20d4c646b622f: Typing example.com and Enter leaves https://example.com/ in the address field and displays the page. Clicking the listed localhost:7568 server leaves http://localhost:7568/ in the address field and displays Local browser demo. Every final still was captured after two screenshots 500 ms apart were byte-identical. Recordings were reviewed through extracted frame contact sheets. The interaction used the new-thread draft view; no paid agent turn was run. Direct agent MCP calls and native Windows/WSL were not verified. AI-assisted; verified with the tests and tools listed above.