WebView2's WEBVIEW2_ADDITIONAL_BROWSER_ARGUMENTS is ignored because the app sets its browser arguments explicitly (seen on the runner: the WebView2 command line had only the app's arguments). The app now appends --remote-debugging-port only when LOTUS_WEBVIEW2_DEBUG_PORT holds a valid port (>= 1024); otherwise the arguments are exactly as before. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01PPmy3tPq869XDW4njjVaKA