@GetMapping("/login")
	public String login(ModelMap model) {
		try {
			userContext.getCurrentUser();
		} catch (Exception e) {
			CoreLogger.LOGGER.info("Login Failure " + e.getMessage());
			return "app";
		}
		model.clear();
		return "app";
	}
Return the login page.

@param model model
@return "login" if not logged in. Otherwise, "/"
ngrinder-controller/src/main/java/org/ngrinder/home/controller/HomeController.java