src/vs/workbench/contrib/terminal/browser/terminalService.ts/TerminalService/_onBeforeShutdown
class TerminalService:	private _onBeforeShutdown(reason: ShutdownReason): boolean | Promise<boolean> {
		// Never veto on web as this would block all windows from being closed. This disables
		// process revive as we can't handle it on shutdown.
		if (isWeb) {
			this._isShuttingDown = true;
			return false;
		}
		return this._onBeforeShutdownAsync(reason);
	}