Vaadin 10: Spring boot expiredURL not working

Hi all…I have “Vaadin 10 with Spring Boot” application that I have taken from Vaadin 10 flow starter-application. I want to allow user to access application from one place at a time. So I used maximumSessions(1). Example, from Chrome browser I have logged in with user “XYZ”. Now with the same user (i.e. “XYZ”) I tried to login to Opera browser. So as per configuration shown below, it will expire session of Chrome browser but it is not redirecting to “/login”. It shows message “Invalid JSON response from Server”. Any help would be appreciated!!!.Below is the Spring security configuration:

@Override
protected void configure(HttpSecurity http) throws Exception {
    // Not using Spring CSRF here to be able to use plain HTML for the login page
    http.csrf().disable()

            // Register our CustomRequestCache, that saves unauthorized access attempts, so
            // the user is redirected after login.
            .requestCache().requestCache(new CustomRequestCache())

            // Restrict access to our application.
            .and().authorizeRequests()
            .antMatchers("/ForgetPassword","/ChangePassword","/login").permitAll()
            // Allow all flow internal requests.
            .requestMatchers(SecurityUtils::isFrameworkInternalRequest).permitAll()

            // Allow all requests by logged in users.
            .anyRequest().authenticated()
            // Configure the login page.
            .and().formLogin().loginPage("/login").permitAll().loginProcessingUrl("/login")
            .failureUrl("/login?error")

            // Register the success handler that redirects users to the page they last tried
            // to access
            .successHandler(new SavedRequestAwareAuthenticationSuccessHandler())

            // Configure logout
            .and().logout().logoutSuccessUrl(LOGOUT_SUCCESS_URL)
            .deleteCookies("JSESSIONID")
            //.invalidateHttpSession(true)
            .and()
            .sessionManagement()
            //.invalidSessionUrl("/login")
            .maximumSessions(1)
            //.maxSessionsPreventsLogin(false)
            .sessionRegistry(sessionRegistry())
            .expiredUrl("/login");

P.S. I asked the same question on stackoverflow (https://stackoverflow.com/questions/51704975/spring-boot-expiredurl-not-working)