The render-process-gone handler called mainWindow.reload() to recover from
renderer crashes (e.g. WebGL / native / OOM in chat-spawn flows). On the
Electron 40 CastLabs build the reload re-registers a session/webview observer
that Chromium base/observer_list.h:318 refuses to add twice. The DCHECK
aborts the entire main process with exit 3, taking the app down whenever the
renderer dies.
Recreate the BrowserWindow instead: a fresh webContents has no duplicate
observers to add. The closed handler is identity-checked so the old window
teardown does not null out the new mainWindow reference.
When the 3-in-60s crash cap trips we now surface a native dialog (Reload /
Quit) instead of leaving a stuck dead window. Native dialog runs outside the
render-process-gone call stack, so its Reload button cannot itself reproduce
the DCHECK.
Bumps to 1.1.43 (re-cutting the deleted release draft).